#pragma once
#include "runtime_model.h"
#include "header_bar.h"
#include "tile_palette.h"
#include "tile_icon.h"
#include "screen_settings.h"
#include "settings_screen.h"
#include "esphome/core/preferences.h"
#include "cyd_ui.h"
#include "light_controls.h"
#include "tile_controls.h"
#include "swipe_profile.h"
#include "esphome/components/json/json_util.h"
#include "esphome/components/api/api_server.h"
#include "esphome/core/hal.h"
#include "esphome/core/util.h"
#include "esphome/core/time.h"
#include "lvgl.h"
#include <functional>
#include <algorithm>

namespace runtime_tiles {
inline bool enabled = false;
// Swiping, rotation and going back to page 1 live in settings_screen, next to the other settings the
// screen can change itself; these names stay as the way the rest of the firmware reaches them.
using settings_screen::swipe_pages;
using settings_screen::rotation;
using settings_screen::rotation_supported;
using settings_screen::auto_home;
using settings_screen::auto_home_seconds;
inline esphome::ESPPreferenceObject rotation_preference;
inline esphome::ESPPreferenceObject swipe_preference;
inline esphome::ESPPreferenceObject home_preference;
inline Model model;
inline std::string inbox;
inline const lv_font_t *watch_font = nullptr;
inline const lv_font_t *mini_icon_font = nullptr;
inline const lv_font_t *watch_value_font = nullptr, *watch_icon_font = nullptr;
// Big digits for the clock card; the board profile sets it with the local time source.
inline const lv_font_t *clock_font = nullptr;
// Text in the -/+ pill and the run key of direct controls; the board profile sets it.
inline const lv_font_t *control_font = nullptr;
inline lv_obj_t *room_label = nullptr;  // remembered by render() so page switches can render synchronously
// Top bar (0.2.32+): the profile's clock label only lends its place and margin; values use the
// profile's text font, icons its small icon font. Set by the board profile at boot.
inline header_bar::Bar header;
inline lv_obj_t *time_label = nullptr;
inline const lv_font_t *header_text_font = nullptr, *header_icon_font = nullptr;
inline void render_header();
inline std::function<esphome::ESPTime()> now_time;
// True while the screen is in use: the profile reports standby (also the night level) as not awake.
// The analog clock's second hand runs only then; a standby screen stays on its minute redraws.
inline std::function<bool()> screen_awake;
inline bool awake() { return !screen_awake || screen_awake(); }
inline uint32_t now_epoch() { if (!now_time) return 0; auto t = now_time(); return t.is_valid() ? static_cast<uint32_t>(t.timestamp) : 0; }
inline void tick();
inline void refresh_tile(size_t index);
#ifdef SWIPE_PROFILE
inline void swipe_test(unsigned count, unsigned interval_ms, unsigned back_ms, JsonObject tuning);
#endif
inline void refresh_header_only();
inline void refresh_all();
inline void refresh_detail(unsigned index);
inline const char *weather_icon(const std::string &condition);
inline const char *weather_text(const std::string &condition);
inline std::string timer_text(const Tile &t);
inline std::string last_run_text(uint32_t epoch);
inline int active_index = -1;
inline uint32_t last_received = 0;
// Seconds between the manager's full repeats; every layout message declares it (app
// 0.2.26+). Older managers get the 120 s that app 0.2.20 introduced.
inline uint32_t keepalive_seconds = 120;
// Revision of the layout the manager sent last (app 0.2.39+). A keepalive ping carries the
// manager's revision; a mismatch (a restart, a demo layout) asks for the whole layout again.
inline std::string layout_rev;
inline std::function<void()> layout_changed, refresh, dismiss, settings_changed;
inline esphome::ESPPreferenceObject settings_preference;
// The two extra values of 0.2.44+ in one record: going back to page 1 by itself, and after how long.
struct HomeTimeout { uint32_t enabled = 1, seconds = 120; };
inline void load_settings() {
  settings_preference = esphome::global_preferences->make_preference<screen_settings::Settings>(0x53435231);
  swipe_preference = esphome::global_preferences->make_preference<uint32_t>(0x53575031);
  home_preference = esphome::global_preferences->make_preference<HomeTimeout>(0x484F4D31);
  uint32_t swipe_saved=0;
  if(swipe_preference.load(&swipe_saved))swipe_pages=swipe_saved==1;
  HomeTimeout home;
  if(home_preference.load(&home) && home.seconds>=30 && home.seconds<=3600){
    auto_home=home.enabled?1:0;auto_home_seconds=(int32_t)home.seconds;
  }
  if(rotation_supported){
    rotation_preference=esphome::global_preferences->make_preference<uint32_t>(0x524F5431);
    uint32_t saved=0;
    if(rotation_preference.load(&saved) && saved<=270 && saved%90==0)rotation=(int32_t)saved;
  }
  screen_settings::Settings saved;
  if (settings_preference.load(&saved) && saved.valid()) screen_settings::current = saved;
}
// Everything the screen remembers, written in one go. ESPHome batches the flash writes, so a row of
// taps on -/+ costs one write, and a value that did not change costs nothing.
inline void persist_settings() {
  if (screen_settings::current.valid()) settings_preference.save(&screen_settings::current);
  uint32_t swipe = swipe_pages ? 1 : 0;
  swipe_preference.save(&swipe);
  HomeTimeout home{(uint32_t) (auto_home ? 1 : 0), (uint32_t) std::clamp<int32_t>(auto_home_seconds, 30, 3600)};
  home_preference.save(&home);
  if (rotation_supported) { uint32_t turned = (uint32_t) rotation; rotation_preference.save(&turned); }
}
inline bool parse_settings(JsonObject obj, screen_settings::Settings &s) {
  // Require the complete known schema; validate before touching any runtime state.
  if (obj.size() != 11) return false;
  const char *flags[] = {"standby_enabled", "night_enabled", "show_clock", "clock_24h", "home_on_standby"};
  int32_t *flag_values[] = {&s.standby_enabled, &s.night_enabled, &s.show_clock, &s.clock_24h, &s.home_on_standby};
  for (int i = 0; i < 5; ++i) {
    if (!obj[flags[i]].is<bool>()) return false;
    *flag_values[i] = obj[flags[i]].as<bool>();
  }
  const char *numbers[] = {"standby_seconds", "brightness", "standby_brightness", "night_start", "night_end", "night_brightness"};
  int32_t *values[] = {&s.standby_seconds, &s.brightness, &s.standby_brightness, &s.night_start, &s.night_end, &s.night_brightness};
  for (int i = 0; i < 6; ++i) {
    if (!obj[numbers[i]].is<int>() || obj[numbers[i]].is<bool>()) return false;
    *values[i] = obj[numbers[i]].as<int>();
  }
  return s.valid();
}
inline std::function<void(Tile &)> detail, detail_update;
struct Widgets {
  lv_obj_t *tile{}, *title{}, *value{}, *circle{}, *icon{}; size_t index{}; int cached_active = -1; lv_obj_t *slider{}, *progress{}, *unit{};
  int title_x=0,title_y=0,value_x=0,value_y=0; const lv_font_t *value_font{}, *icon_font{};
  // Wide cards span both columns; custom cards (clock, forecast, graph) draw into `extra`.
  bool wide=false; int base_width=0; lv_obj_t *extra{}; std::string extra_mode; std::array<lv_obj_t *, 20> parts{}; lv_point_precise_t *points{};
  // Analog clock: centre and radius of the dial, so the second hand can move without a card redraw.
  int hand_cx=0, hand_cy=0, hand_r=0, hand_width=1;
  // Soft area under a polyline (graph, sun path), painted by the extra container's draw event.
  const lv_point_precise_t *fill_points{}; unsigned fill_count=0; int fill_x=0, fill_y=0, fill_base=0; lv_color_t fill_color{}; lv_opa_t fill_opa=0;
  // Direct controls on a wide card: a panel at the right with pill keys, a -/+ pill,
  // a slider or a toggle. Objects are rebuilt only when the control set changes.
  lv_obj_t *panel{}; std::string panel_mode; bool panel_dirty=false; int panel_w=0;
  std::array<lv_obj_t *,3> keys{}, key_icons{}; std::array<int,3> key_commands{}; std::array<std::string,3> key_args; std::array<int,3> key_checked{};
  lv_obj_t *pill{}, *pill_value{}, *knob{}, *control_slider{}; int knob_on=-1;
  lv_color_t panel_accent{}, panel_text{};
  // Busy sheet: a translucent white cover with a small spinner while a command is under way.
  lv_obj_t *busy{}, *spinner{};
  // Page fill skeleton: a sheet in the card's colour over its contents until the card is drawn.
  lv_obj_t *veil{};
};
constexpr unsigned POINT_BUFFER = 128;
inline std::array<Widgets, 10> widgets;
// All icon fonts carry the same generated glyph set, so the first bound one answers for all.
inline bool has_icon_glyph(uint32_t codepoint) {
  for (auto &w : widgets) if (w.icon_font) { lv_font_glyph_dsc_t dsc; return lv_font_get_glyph_dsc(w.icon_font, &dsc, codepoint, 0); }
  return false;
}
// Home Assistant's API link as ESPHome itself tracks it: gone the moment the socket drops,
// back the moment HA reconnects, no guessing from message age.
inline bool ha_connected() { return esphome::api_is_connected(); }
// The manager repeats the whole layout every keepalive; one missed round plus its 20 s
// loop slack and the sending itself are tolerated before the feed counts as gone.
inline bool feed_alive() { return esphome::millis() - last_received < keepalive_seconds * 2000 + 60000; }
inline bool fresh() { return model.ready() && ha_connected() && feed_alive(); }
// A dropped tap is logged with its reason, so a missed touch can be read from the ESPHome log
// instead of guessed: moved too far, too short, already used by this contact, or bounce.
inline bool allowed(uint32_t now, int tile, const std::string &what) {
  if (cyd::touch_guard.accept(now, tile)) return true;
  ESP_LOGI("touch", "tap on %s ignored: %s", what.c_str(), cyd::touch_guard.reason().c_str());
  return false;
}
inline float number(JsonVariant value, float fallback = NAN) {
  if (!value.is<float>() && !value.is<int>()) return fallback;
  float n = value.as<float>();
  return std::isfinite(n) ? n : fallback;
}
inline std::string string(JsonVariant value, size_t maximum = 160) {
  if (!value.is<const char *>()) return {};
  std::string s = value.as<std::string>();
  if (s.size() > maximum) {
    while (maximum > 0 && (static_cast<unsigned char>(s[maximum]) & 0xC0) == 0x80) --maximum;
    s.resize(maximum);
  }
  return s;
}
inline std::string list(JsonVariant value) {
  if (!value.is<JsonArray>()) return {};
  std::string out;
  serializeJson(value, out);
  return out.size() <= 512 ? out : "";
}
inline std::string receive(const std::string &payload) {
  if (!enabled) return "Use the Easy Setup profile";
  if (payload.size() > 4096) return "Error: message too large";
  std::string result = "Error: invalid message";
  esphome::json::parse_json(payload, [&](JsonObject root) -> bool {
    if (root["v"].as<int>() != 1) { result = "Error: protocol version"; return false; }
    auto op = string(root["op"]);
    if (op == "layout") {
      if (!root["entities"].is<JsonArray>() || !root["title"].is<const char *>()) return false;
      auto settings = screen_settings::current;
      if (!root["settings"].isNull() && (!root["settings"].is<JsonObject>() ||
          !parse_settings(root["settings"].as<JsonObject>(), settings))) {
        result = "Error: screen settings"; return false;
      }
      std::vector<std::string> entities;
      for (JsonVariant entity : root["entities"].as<JsonArray>()) {
        if (!entity.is<const char *>() || entities.size() == MAX_TILES) return false;
        entities.push_back(entity.as<std::string>());
      }
      if(!root["swipe_pages"].isNull() && !root["swipe_pages"].is<bool>())return false;
      if(!root["auto_home"].isNull() && !root["auto_home"].is<bool>())return false;
      if(!root["auto_home_seconds"].isNull() && (!root["auto_home_seconds"].is<unsigned>() ||
          root["auto_home_seconds"].as<unsigned>()<30 || root["auto_home_seconds"].as<unsigned>()>3600))return false;
      if(!root["rotation"].isNull() && (!root["rotation"].is<unsigned>() ||
          root["rotation"].as<unsigned>()>270 || root["rotation"].as<unsigned>()%90!=0))return false;
      if(!root["keepalive"].isNull() && (!root["keepalive"].is<unsigned>() ||
          root["keepalive"].as<unsigned>()<5 || root["keepalive"].as<unsigned>()>3600))return false;
      // Explicit grid positions (0.2.26+), one absolute slot per entity; absent on older managers.
      std::vector<uint8_t> positions;
      if (!root["slots"].isNull()) {
        if (!root["slots"].is<JsonArray>()) return false;
        for (JsonVariant slot : root["slots"].as<JsonArray>()) {
          if (!slot.is<unsigned>() || slot.as<unsigned>() >= MAX_SLOTS || positions.size() == MAX_TILES) return false;
          positions.push_back(static_cast<uint8_t>(slot.as<unsigned>()));
        }
      }
      inbox = string(root["inbox"], 160);
      bool changed = false, moved = false, was_configured = model.configured;
      const std::string previous_title = model.title;
      const uint8_t previous_pages = model.pages;
      if (!model.set_layout(entities, string(root["title"], 96), changed, positions, moved)) return false;
      // Empty pages the user keeps on purpose; absent on older managers.
      model.pages = root["pages"].is<unsigned>() ? static_cast<uint8_t>(std::clamp<unsigned>(root["pages"].as<unsigned>(), 1, MAX_PAGES)) : 1;
      if(root["swipe_pages"].is<bool>() && swipe_pages!=root["swipe_pages"].as<bool>()){
        swipe_pages=root["swipe_pages"].as<bool>();uint32_t saved=swipe_pages?1:0;swipe_preference.save(&saved);
      }
      if((root["auto_home"].is<bool>() && auto_home!=root["auto_home"].as<bool>()) ||
         (root["auto_home_seconds"].is<unsigned>() && auto_home_seconds!=(int32_t)root["auto_home_seconds"].as<unsigned>())){
        if(root["auto_home"].is<bool>())auto_home=root["auto_home"].as<bool>();
        if(root["auto_home_seconds"].is<unsigned>())auto_home_seconds=(int32_t)root["auto_home_seconds"].as<unsigned>();
        HomeTimeout home{(uint32_t)(auto_home?1:0),(uint32_t)auto_home_seconds};home_preference.save(&home);
      }
      bool rotation_changed=false;
      if(rotation_supported && root["rotation"].is<unsigned>() && rotation!=root["rotation"].as<unsigned>()){
        rotation=root["rotation"].as<unsigned>();rotation_preference.save(&rotation);rotation_changed=true;
      }
      if (!(settings == screen_settings::current)) {
        screen_settings::current = settings;
        settings_preference.save(&settings);  // ESPHome batches flash writes; no write on keepalive.
        rotation_changed=true;
      }
      if(rotation_changed && settings_changed)settings_changed();
      if (changed) { active_index = -1; for (auto &w : widgets) w.cached_active = -1; if (dismiss) dismiss(); }
      if (moved) ESP_LOGI("runtime", "tiles moved: pages rearranged");
      if (root["keepalive"].is<unsigned>()) keepalive_seconds = root["keepalive"].as<unsigned>();
      layout_rev = string(root["rev"], 16);
      last_received = esphome::millis();
      // A repeat of the layout on screen (the hourly repeat, a save that changed nothing here) only
      // refreshes the feed: drawing the whole page again stalls touch input for a few hundred ms,
      // long enough to spoil a slider drag. The tile states that follow redraw their own tiles.
      if (changed || moved || !was_configured || rotation_changed || model.pages != previous_pages || model.title != previous_title) {
        if (layout_changed) layout_changed();
        refresh_all();
      }
      // A repeat of the same layout keeps the inbox state as it is: no new recorder row.
      result = changed || moved || !was_configured ? "Layout received" : model.ready() ? "Synced" : "Loading tiles";
      return true;
    }
    if (op == "ping") {
      // Keepalive without content (app 0.2.39+): only the revision of the layout the manager holds.
      if (!root["rev"].is<const char *>()) return false;
      if(!root["keepalive"].isNull() && (!root["keepalive"].is<unsigned>() ||
          root["keepalive"].as<unsigned>()<5 || root["keepalive"].as<unsigned>()>3600))return false;
      if (root["keepalive"].is<unsigned>()) keepalive_seconds = root["keepalive"].as<unsigned>();
      last_received = esphome::millis();
      if (!model.configured || layout_rev != string(root["rev"], 16)) { result = "Resend needed"; return true; }
      result = model.ready() ? "Synced" : "Loading tiles";
      return true;
    }
    if (op == "header") {
      // Validate every item before replacing the bar; an icon these fonts lack is left out.
      if (!root["items"].is<JsonArray>()) return false;
      header_bar::Bar next;
      for (JsonVariant value : root["items"].as<JsonArray>()) {
        if (next.count == header_bar::MAX_ITEMS || !value.is<JsonObject>()) return false;
        header_bar::Item item;
        item.kind = header_bar::kind(string(value["k"], 8));
        if (item.kind == header_bar::Kind::none) return false;
        uint32_t icon = tile_icon::codepoint(string(value["i"], 8));
        item.icon = icon && has_icon_glyph(icon) ? icon : 0;
        item.text = string(value["t"], header_bar::TEXT_BYTES);
        item.epoch = value["e"].is<unsigned>() ? value["e"].as<uint32_t>() : 0;
        item.has_color = header_bar::color(string(value["c"], 8), item.color);
        if (item.kind == header_bar::Kind::ago && item.epoch <= 0) return false;
        next.items[next.count++] = item;
      }
      next.received = true;
      bool same = header.received && header.count == next.count;
      for (size_t i = 0; same && i < next.count; ++i) same = header.items[i] == next.items[i];
      header = next;
      last_received = esphome::millis();
      if (!same) refresh_header_only();
      // The same status as a tile state, so a changing value never flips the inbox entity.
      result = model.ready() ? "Synced" : "Loading tiles";
      return true;
    }
#ifdef SWIPE_PROFILE
    if (op == "swipe_test") {
      // Diagnostic builds only: page switches without a finger, `n` of them `ms` apart; `back`
      // (ms) swipes straight back after each one, like a quick second swipe.
      swipe_test(root["n"] | 20u, root["ms"] | 1200u, root["back"] | 0u, root);
      result = "Swipe test started";
      return true;
    }
#endif
    if (op != "state" || !root["i"].is<unsigned>() || !root["a"].is<JsonObject>()) return false;
    unsigned index = root["i"].as<unsigned>();
    std::string entity = string(root["entity"], 120);
    if (!model.accepts(index, entity)) { result = "Error: outdated tile"; return false; }
    Tile &tile = model.tiles[index];
    auto a = root["a"].as<JsonObject>();
    // The fingerprint of state, attributes and extras (a vacuum's mode or water select changes only
    // there), hashed while serializing so no copy of the message stays behind.
    Fingerprint revision;
    revision.add(string(root["state"]));
    revision.write('\n');
    serializeJson(a, revision);
    if (!root["x"].isNull()) serializeJson(root["x"], revision);
    bool was_confirmed=tile.confirmed;
    tile.observe(revision.value);
    if(tile.pending && !tile.local_feedback && !was_confirmed && tile.confirmed)
      ESP_LOGI("runtime_action","HA state received entity=%s elapsed=%u ms",entity.c_str(),(unsigned)(esphome::millis()-tile.pending_since));
    auto options = root["o"];
    std::string background=string(options["background"],16);
    tile.background = tile_palette::color(background);
    tile.transparent = tile_palette::transparent(background);
    // An icon these fonts lack (a newer set than this firmware) keeps the domain icon.
    uint32_t icon = tile_icon::codepoint(string(options["icon"], 8));
    tile.icon = icon && has_icon_glyph(icon) ? tile_icon::utf8(icon) : "";
    tile.tap = string(options["tap"]); if (tile.tap.empty()) tile.tap="auto";
    tile.display = string(options["display"]); if (tile.display.empty()) tile.display="standard";
    tile.inline_control = string(options["inline"]); if (tile.inline_control.empty()) tile.inline_control="none";
    // Direct controls (0.2.19+): the manager sends only the set a wide card really shows.
    tile.controls = string(options["controls"], 16);
    // Width arrives with the state, after the layout: re-pack the pages when it changes.
    bool was_wide = tile.wide;
    tile.wide = string(options["size"]) == "wide";
    bool repack = was_wide != tile.wide;
    // Pre-computed extras: the manager converts time zones and fetches forecasts. What only some tiles
    // carry is collected in `next` and replaces the tile's Extra at the end (see Tile::set_extra).
    auto extra = root["x"];
    Extra next;
    if (extra["days"].is<JsonArray>()) for (JsonVariant day : extra["days"].as<JsonArray>()) {
      if (next.forecast.size() == 5) break;
      next.forecast.emplace_back(); auto &f = next.forecast.back();
      f.day = string(day["d"], 3); f.condition = string(day["c"], 20); f.high = number(day["h"]); f.low = number(day["l"]);
      f.rain = number(day["p"]); f.mm = number(day["r"]);
    }
    if (extra["hours"].is<JsonArray>()) for (JsonVariant hour : extra["hours"].as<JsonArray>()) {
      if (next.hours.size() == 8) break;
      next.hours.emplace_back(); auto &h = next.hours.back();
      h.time = string(hour["t"], 5); h.condition = string(hour["c"], 20); h.temp = number(hour["h"]); h.rain = number(hour["p"]); h.mm = number(hour["r"]);
    }
    tile.last_run = extra["last"].is<unsigned>() ? extra["last"].as<uint32_t>() : 0;
    next.sunrise = string(extra["rise"], 5); next.sunset = string(extra["set"], 5);
    next.timer_end = extra["end"].is<unsigned>() ? extra["end"].as<uint32_t>() : 0;
    next.duration = string(extra["dur"], 16); next.remaining = string(extra["rem"], 16);
    tile.has_history=false;
    if (root["history"]["values"].is<JsonArray>()) {
      tile.history.assign(24,NAN);unsigned j=0;
      for (JsonVariant value:root["history"]["values"].as<JsonArray>()) {
        if(j==24) break; tile.history[j++]=number(value); }
      tile.has_history=j>0;tile.history_hours=std::clamp(root["history"]["hours"].as<unsigned>(),1u,24u);
    } else if (!tile.history.empty()) { tile.history.clear(); tile.history.shrink_to_fit(); }
    if (a["options"].is<JsonArray>()) for(JsonVariant option:a["options"].as<JsonArray>()) {
      if(next.options.size()==8)break;next.options.push_back(string(option,48)); }
    tile.battery=number(a["battery_level"]);tile.volume=number(a["volume_level"]);
    tile.muted=a["is_volume_muted"].is<bool>() && a["is_volume_muted"].as<bool>();
    tile.device_class=string(a["device_class"],24);next.hvac_action=string(a["hvac_action"],24);
    next.media_title=string(a["media_title"],80);tile.supported=a["supported_features"].as<uint32_t>();
    tile.name = string(root["name"], 80);
    tile.state = string(root["state"], 160);
    tile.unit = string(a["unit_of_measurement"], 20);
    tile.brightness = number(a["brightness"]);
    tile.percentage = number(a["percentage"]);
    tile.position = number(a["current_position"]);
    tile.current = number(a["current_temperature"]);
    tile.target = number(a["temperature"]);
    tile.humidity = number(a["current_humidity"]);
    tile.minimum = number(a["min_temp"], 7);
    tile.maximum = number(a["max_temp"], 35);
    tile.step = number(a["target_temp_step"], 0.5f);
    if(tile.domain()=="number" || tile.domain()=="input_number") {
      tile.minimum=number(a["min"],0);tile.maximum=number(a["max"],100);tile.step=number(a["step"],1); }
    if(tile.domain()=="weather") {
      tile.current=number(a["temperature"]);tile.unit=string(a["temperature_unit"],12);
      tile.humidity=number(a["humidity"]);next.wind=number(a["wind_speed"]);next.wind_unit=string(a["wind_speed_unit"],8);next.feels=number(a["apparent_temperature"]);
    }
    tile.modes = list(a["supported_color_modes"]);
    next.hvac_modes = list(a["hvac_modes"]);
    next.fan_modes = list(a["fan_modes"]); next.swing_modes = list(a["swing_modes"]);
    next.fan_mode = string(a["fan_mode"], 48); next.swing_mode = string(a["swing_mode"], 48);
    float hue = number(a["hs_color"][0]);
    float saturation = number(a["hs_color"][1]);
    tile.has_hs_color = std::isfinite(hue) && std::isfinite(saturation);
    tile.saturation = tile.has_hs_color ? std::lround(std::clamp(saturation, 0.0f, 100.0f)) : 0;
    if (std::isfinite(hue)) tile.hue = std::lround(std::clamp(hue, 0.0f, 360.0f));
    float kelvin = number(a["color_temp_kelvin"]);
    if (std::isfinite(kelvin)) tile.kelvin = std::lround(std::clamp(kelvin, 1000.0f, 15000.0f));
    tile.min_kelvin = std::clamp(number(a["min_color_temp_kelvin"], 0), 0.0f, 15000.0f);
    tile.max_kelvin = std::clamp(number(a["max_color_temp_kelvin"], 0), 0.0f, 15000.0f);
    next.fan_speed = string(a["fan_speed"], 48);
    if (a["fan_speed_list"].is<JsonArray>()) for (JsonVariant speed : a["fan_speed_list"].as<JsonArray>()) {
      if (next.fan_speeds.size() == 4) break;
      next.fan_speeds.push_back(string(speed, 48));
    }
    // Vacuum rows (app 0.2.46+): the cleaning mode and water selects of the robot's device and the
    // suction speeds to offer, each at most six; the battery sensor when the vacuum has no attribute.
    // A chip just tapped keeps its choice while Home Assistant is still busy with it, so another update
    // of the robot (its battery, say) does not flip the row back for a moment.
    std::vector<std::pair<char, std::string>> tapped;
    if (tile.loading(esphome::millis())) for (auto &c : tile.extra().choices) if (!c.sent.empty()) tapped.emplace_back(c.kind, c.sent);
    auto choice = [&](const char *key, char kind) {
      auto c = extra[key];
      if (!c["o"].is<JsonArray>()) return;
      Choice row; row.kind = kind;
      row.entity = string(c["e"], 120); row.current = string(c["s"], 48); row.roles = string(c["r"], 6);
      if (kind != 's' && !valid_entity(row.entity)) return;
      for (JsonVariant value : c["o"].as<JsonArray>()) { if (row.values.size() == 6) break; row.values.push_back(string(value, 48)); }
      if (c["l"].is<JsonArray>()) for (JsonVariant label : c["l"].as<JsonArray>()) {
        if (row.labels.size() == row.values.size()) break; row.labels.push_back(string(label, 24)); }
      while (row.labels.size() < row.values.size()) row.labels.push_back(row.values[row.labels.size()]);
      if (!row.values.empty()) next.choices.push_back(std::move(row));
    };
    if (tile.domain() == "vacuum") { choice("mode", 'm'); choice("water", 'w'); choice("fan", 's'); tile_controls::settle_suction(next); }
    for (auto &[kind, value] : tapped) if (auto *c = next.choice(kind)) if (c->current != value) c->sent = value;
    if (!std::isfinite(tile.battery)) tile.battery = number(extra["bat"]);
    next.charging = extra["chg"].is<int>() && extra["chg"].as<int>() == 1;
    next.room = string(extra["room"], 32);
    tile.set_extra(std::move(next));
    // Home Assistant reports the edited value: the -/+ pill follows its state again.
    if(std::isfinite(tile.edit_value) && tile.edit_sent && std::fabs(tile_controls::edit_target(tile)-tile.edit_value)<0.051f)tile.edit_value=NAN;
    tile.received = true;
    for(auto &w:widgets)if(w.index==index)w.cached_active=-1;
    last_received = esphome::millis();
    if (repack && layout_changed) layout_changed();
    refresh_tile(index);
    if (active_index == static_cast<int>(index) && detail_update) detail_update(tile);
    refresh_detail(index);
    result = model.ready() ? "Synced" : "Loading tiles";
    return true;
  });
  return result;
}
inline void action(const std::string &service, const std::string &entity, const std::string &key="", const std::string &value="") {
  if (!fresh() || !valid_entity(entity)) return;
  esphome::api::HomeassistantActionRequest request;
  request.service = esphome::StringRef(service);
  request.data.init(key.empty() ? 1 : 2);
  esphome::api::HomeassistantServiceMap entry;
  entry.key = esphome::StringRef("entity_id");
  entry.value = esphome::StringRef(entity);
  request.data.push_back(entry);
  if(!key.empty()) {esphome::api::HomeassistantServiceMap param;param.key=esphome::StringRef(key);param.value=esphome::StringRef(value);request.data.push_back(param);}
  for(size_t i=0;i<model.tiles.size();++i) if(model.tiles[i].entity==entity){model.tiles[i].begin(esphome::millis());refresh_tile(i);}
  esphome::api::global_api_server->send_homeassistant_action(request);
  ESP_LOGI("runtime_action","Sent service=%s entity=%s",service.c_str(),entity.c_str());
}
inline void setting_event(const std::string &key, int value) {
  if(inbox.empty())return;
  esphome::api::HomeassistantActionRequest request;request.service=esphome::StringRef("esphome.screen_setting");request.is_event=true;
  std::string number=std::to_string(value);request.data.init(3);
  const std::string keys[]={"inbox","key","value"},values[]={inbox,key,number};
  for(int i=0;i<3;++i){esphome::api::HomeassistantServiceMap entry;entry.key=esphome::StringRef(keys[i]);entry.value=esphome::StringRef(values[i]);request.data.push_back(entry);}
  esphome::api::global_api_server->send_homeassistant_action(request);
}
} // namespace runtime_tiles
// Small shared native-LVGL detail cards. No images, canvas buffers or free scrolling.
namespace runtime_tiles {
inline lv_obj_t *detail_root=nullptr;
inline unsigned detail_index=0;
inline const lv_font_t *detail_font=nullptr;
inline lv_obj_t *detail_actions[32]{};
inline unsigned detail_action_count=0;
inline lv_obj_t *detail_status=nullptr;
inline lv_obj_t *detail_badge_status=nullptr;
inline lv_obj_t *detail_switch=nullptr;
inline lv_obj_t *detail_label(lv_obj_t *parent,const std::string &text,int x,int y,int width) {
  auto *label=lv_label_create(parent);lv_label_set_text(label,text.c_str());lv_obj_set_pos(label,x,y);lv_obj_set_width(label,width);
  lv_obj_set_style_text_font(label,detail_font,0);lv_obj_set_style_text_color(label,lv_color_hex(0x202020),0);
  lv_label_set_long_mode(label,LV_LABEL_LONG_DOT);lv_obj_set_height(label,lv_font_get_line_height(detail_font));return label;
}
inline std::string detail_state(const Tile &t){
  if(t.domain()=="person")return t.state=="home"?"Home":t.state=="not_home"?"Away":t.state;
  if(t.domain()=="sun")return t.state=="above_horizon"?"Above the horizon":"Below the horizon";
  if(t.domain()=="timer")return timer_text(t);
  if(t.domain()=="script"||t.domain()=="scene"||t.domain()=="button"||t.domain()=="input_button")return t.state=="on"?"Running...":last_run_text(t.last_run);
  if(t.state=="on")return "On";
  if(t.state=="off")return "Off";
  if(t.state=="docked")return "Docked";
  if(t.state=="cleaning")return "Cleaning";
  if(t.state=="paused")return "Paused";
  if(t.state=="returning")return "Returning to dock";
  if(t.state=="idle")return "Idle";
  if(t.state=="error")return "Check the robot in HA";
  if(!t.available())return "Unavailable";
  return t.state;
}
inline void hide_detail(){if(detail_root)lv_obj_add_flag(detail_root,LV_OBJ_FLAG_HIDDEN);}
inline int slider_value(const Tile &t){
  auto d=t.domain();float value=0;
  if(d=="light")value=std::isfinite(t.brightness)?t.brightness/255:0;
  if(d=="fan")value=std::isfinite(t.percentage)?t.percentage/100:0;
  if(d=="cover")value=std::isfinite(t.position)?t.position/100:0;
  if(d=="media_player")value=std::isfinite(t.volume)?t.volume:0;
  if(d=="number"||d=="input_number") {char *end;float state=strtof(t.state.c_str(),&end);if(end!=t.state.c_str() && t.maximum>t.minimum)value=(state-t.minimum)/(t.maximum-t.minimum);}
  return std::clamp((int)std::lround(value*1000),0,1000);
}
inline lv_obj_t *captured_slider=nullptr;
inline bool slider_changed=false;
inline int slider_held=0;
inline void slider_event(lv_event_t *e);
inline void commit_slider(unsigned i,int raw){
  if(i>=model.count || !fresh())return;auto &t=model.tiles[i];if(!t.available() || t.loading(esphome::millis()))return;
  float value=std::clamp(raw,0,1000)/1000.0f;auto d=t.domain();
  // A light's slider stops at 1 %, as in Home Assistant; tapping the card turns it off.
  if(d=="light")action("light.turn_on",t.entity,"brightness",std::to_string(std::max(3,(int)std::lround(value*255))));
  if(d=="fan")action("fan.set_percentage",t.entity,"percentage",std::to_string((int)std::lround(value*100)));
  if(d=="cover")action("cover.set_cover_position",t.entity,"position",std::to_string((int)std::lround(value*100)));
  if(d=="media_player")action("media_player.volume_set",t.entity,"volume_level",std::to_string(value));
  if(d=="number"||d=="input_number") {
    if(!std::isfinite(t.minimum)||!std::isfinite(t.maximum)||t.maximum<=t.minimum||t.step<=0)return;
    value=std::clamp(t.minimum+std::round(value*(t.maximum-t.minimum)/t.step)*t.step,t.minimum,t.maximum);
    action(d+".set_value",t.entity,"value",std::to_string(value)); }
}
inline void slider_event(lv_event_t *e){
  auto *slider=lv_event_get_target_obj(e);auto code=lv_event_get_code(e);
  if(code==LV_EVENT_PRESSED){captured_slider=slider;slider_changed=false;}
  // On release LVGL sets the value once more from the last touch point: log it when that throws a
  // dragged slider to one of its ends, so a stray touch sample shows up (cyd::release_jump).
  if(code==LV_EVENT_VALUE_CHANGED && captured_slider==slider){
    auto *indev=lv_indev_active();int raw=lv_slider_get_value(slider);
    if(!indev || lv_indev_get_state(indev)!=LV_INDEV_STATE_RELEASED)slider_held=raw;
    else if(slider_changed && cyd::release_jump(slider_held,raw,lv_slider_get_min_value(slider),lv_slider_get_max_value(slider))){
      lv_point_t point;lv_indev_get_point(indev,&point);
      ESP_LOGW("slider","Tile slider jumped on release: %d -> %d (touch x=%d y=%d)",slider_held,raw,(int)point.x,(int)point.y);
    }
  }
  // The range reaches below zero only to draw the round end at 0 (slider_handle).
  if(code==LV_EVENT_VALUE_CHANGED && lv_slider_get_value(slider)<0)lv_slider_set_value(slider,0,LV_ANIM_OFF);
  if(code==LV_EVENT_VALUE_CHANGED && captured_slider==slider)slider_changed=true;
  if(code==LV_EVENT_PRESS_LOST && captured_slider==slider){captured_slider=nullptr;slider_changed=false;}
  if(code==LV_EVENT_RELEASED && captured_slider==slider){
    unsigned index=(uintptr_t)lv_event_get_user_data(e);
    for(auto &w:widgets)if(w.slider==slider || w.control_slider==slider){index=w.index;break;}
    bool changed=slider_changed;captured_slider=nullptr;slider_changed=false;
    if(changed && cyd::touch_guard.accept_slider(esphome::millis(),200+index))commit_slider(index,lv_slider_get_value(slider));
  }
}
inline void show_detail(unsigned index);
// A chip on the vacuum card: the service call goes out, the chip shows the choice at once, and the card
// waits for Home Assistant like after its other buttons. The card is drawn again once this tap's event
// has finished, because a chosen mode can add or remove the suction and water rows.
inline void choose(Tile &t,Choice &row,const std::string &value){
  if(value==row.current)return;
  auto a=tile_controls::choice_action(t,row.kind,value);if(!a.valid())return;
  action(a.service,row.kind=='s'?t.entity:row.entity,a.key,a.value);
  row.sent=value;t.begin(esphome::millis());
  lv_async_call([](void *){if(detail_root && !lv_obj_has_flag(detail_root,LV_OBJ_FLAG_HIDDEN))show_detail(detail_index);},nullptr);
}
inline lv_obj_t *detail_button(const char *text,int x,int y,int width,int height,int command){
  auto *button=lv_obj_create(detail_root);lv_obj_remove_style_all(button);lv_obj_set_pos(button,x,y);lv_obj_set_size(button,width,height);
  lv_obj_set_style_bg_color(button,lv_color_hex(command==0?0x009FE3:0xD9E6F0),0);lv_obj_set_style_bg_opa(button,LV_OPA_COVER,0);lv_obj_set_style_radius(button,12,0);lv_obj_add_flag(button,LV_OBJ_FLAG_CLICKABLE);
  auto *label=detail_label(button,text,6,0,width-12);lv_obj_center(label);lv_obj_set_style_text_align(label,LV_TEXT_ALIGN_CENTER,0);if(command==0)lv_obj_set_style_text_color(label,lv_color_hex(0xFFFFFF),0);lv_obj_remove_flag(label,LV_OBJ_FLAG_CLICKABLE);
  lv_obj_add_event_cb(button,[](lv_event_t *e){
    int cmd=(intptr_t)lv_event_get_user_data(e);if(cmd==-1){hide_detail();return;}
    if(!fresh()||detail_index>=model.count || !allowed(esphome::millis(),300+cmd,"card button "+model.tiles[detail_index].entity))return;
    auto &t=model.tiles[detail_index];if(!t.available()||t.loading(esphome::millis()))return;
    if(cmd<4){const char *services[]={"vacuum.start","vacuum.pause","vacuum.return_to_base","vacuum.locate"};action(services[cmd],t.entity);}
    // Vacuum rows: 10-15 suction, 50-55 cleaning mode, 60-65 water.
    static const std::pair<int,char> rows[]={{10,'s'},{50,'m'},{60,'w'}};
    for(const auto &[first,kind]:rows)
      if(cmd>=first && cmd<first+6){auto *row=t.choice(kind);if(row && cmd-first<(int)row->values.size())choose(t,*row,row->values[cmd-first]);}
    if(cmd==20)action("media_player.media_play_pause",t.entity);
    if(cmd==21)action("media_player.media_previous_track",t.entity);
    if(cmd==22)action("media_player.media_next_track",t.entity);
    if(cmd>=30 && cmd<38 && cmd-30<(int)t.extra().options.size())action(t.domain()+".select_option",t.entity,"option",t.extra().options[cmd-30]);
    if(cmd==40)action(t.state=="active"?"timer.pause":"timer.start",t.entity);
    if(cmd==41)action("timer.cancel",t.entity);
  },LV_EVENT_SHORT_CLICKED,(void*)(intptr_t)command);
  lv_obj_set_style_bg_color(button,lv_color_hex(0x0075B0),LV_STATE_PRESSED);
  lv_obj_set_style_transform_width(button,-2,LV_STATE_PRESSED);lv_obj_set_style_transform_height(button,-2,LV_STATE_PRESSED);
  lv_obj_set_style_opa(button,LV_OPA_50,LV_STATE_DISABLED);
  if(command>=0 && detail_action_count<32)detail_actions[detail_action_count++]=button;
  return button;
}

// ---- Weather card: now, the next hours and the coming days, with rain ----
inline uint32_t weather_accent(const std::string &c) {
  if(c=="sunny")return 0xFFB300;
  if(c=="clear-night")return 0x6E41AB;
  if(c=="rainy"||c=="pouring"||c=="lightning-rainy"||c=="snowy-rainy")return 0x1E88E5;
  if(c=="snowy"||c=="hail")return 0x4FC3F7;
  if(c=="lightning")return 0xFFA000;
  if(c=="partlycloudy")return 0x7E9BB5;
  return 0x78909C;
}
inline lv_obj_t *detail_text(lv_obj_t *parent,const std::string &text,int x,int y,int width,const lv_font_t *font,lv_text_align_t align,uint32_t color){
  auto *l=detail_label(parent,text,x,y,std::max(1,width));lv_obj_set_style_text_font(l,font,0);lv_obj_set_height(l,lv_font_get_line_height(font));
  lv_obj_set_style_text_align(l,align,0);lv_obj_set_style_text_color(l,lv_color_hex(color),0);return l;
}
// "30%", "30% · 1.7 mm" or "1.7 mm": whatever the provider reports; empty when dry.
inline std::string rain_text(float chance,float mm,bool with_mm){
  char b[32];
  if(std::isfinite(chance) && chance>=0){
    if(with_mm && std::isfinite(mm) && mm>=0.05f){snprintf(b,sizeof(b),"%d%% · %.1f mm",(int)std::lround(chance),mm);return b;}
    snprintf(b,sizeof(b),"%d%%",(int)std::lround(chance));return b;
  }
  if(std::isfinite(mm) && mm>=0.05f){snprintf(b,sizeof(b),mm<10?"%.1f mm":"%.0f mm",mm);return b;}
  return "";
}
inline std::string degrees(float value){ if(!std::isfinite(value))return "--"; char b[16];snprintf(b,sizeof(b),"%.0f°",value);return b; }
inline lv_obj_t *detail_card(int x,int y,int w,int h){
  auto *card=lv_obj_create(detail_root);lv_obj_remove_style_all(card);lv_obj_remove_flag(card,LV_OBJ_FLAG_SCROLLABLE);lv_obj_remove_flag(card,LV_OBJ_FLAG_CLICKABLE);
  lv_obj_set_pos(card,x,y);lv_obj_set_size(card,w,h);
  lv_obj_set_style_bg_color(card,lv_color_hex(0xFFFFFF),0);lv_obj_set_style_bg_opa(card,LV_OPA_COVER,0);
  lv_obj_set_style_radius(card,lv_obj_get_style_radius(widgets[0].tile,LV_PART_MAIN),0);
  lv_obj_set_style_border_width(card,1,0);lv_obj_set_style_border_color(card,lv_color_hex(0xDDDDDD),0);
  return card;
}
// Two cards: "now" with the next hours, and the coming days. Bold highs, muted lows,
// rain in blue with a drop, so the eye finds temperature first and rain second.
inline void render_weather_detail(const Tile &t,bool large,int width,int height,int pad){
  const Extra &weather=t.extra();
  if(detail_status){lv_obj_add_flag(detail_status,LV_OBJ_FLAG_HIDDEN);detail_status=nullptr;}
  const lv_font_t *big=watch_value_font?watch_value_font:detail_font;
  const lv_font_t *icon_font=widgets[0].icon_font?widgets[0].icon_font:detail_font;
  const lv_font_t *mini=mini_icon_font?mini_icon_font:icon_font;
  const lv_font_t *tiny=watch_icon_font?watch_icon_font:mini;
  const lv_font_t *small=widgets[0].value?lv_obj_get_style_text_font(widgets[0].value,LV_PART_MAIN):detail_font;
  uint32_t ink=0x202020,muted=0x6B6B6B,rain=0x1E88E5;
  int text_h=lv_font_get_line_height(detail_font),small_h=lv_font_get_line_height(small),mini_h=lv_font_get_line_height(mini),tiny_h=lv_font_get_line_height(tiny);
  int icon_h=lv_font_get_line_height(icon_font),big_h=lv_font_get_line_height(big),hero=std::max(icon_h,big_h);
  int card_pad=large?14:7,inner=width-2*pad-2*card_pad;
  unsigned columns=std::min<unsigned>(weather.hours.size(),6);
  int hours_h=columns?small_h+mini_h+text_h+small_h+(large?16:6):0;
  int card_a_h=card_pad+hero+(columns?(large?14:8)+hours_h:0)+card_pad;
  int y=large?62:38;
  auto *now=detail_card(pad,y,width-2*pad,card_a_h);
  // Now: icon, temperature, condition, then feels-like / humidity / wind in one muted line.
  int cy=card_pad;char b[48];
  detail_text(now,t.available()?weather_icon(t.state):"\U000F0595",card_pad,cy+(hero-icon_h)/2,icon_h+8,icon_font,LV_TEXT_ALIGN_LEFT,weather_accent(t.state));
  int temp_x=card_pad+icon_h+(large?14:6),temp_w=large?92:50;
  detail_text(now,degrees(t.current),temp_x,cy+(hero-big_h)/2,temp_w,big,LV_TEXT_ALIGN_LEFT,ink);
  int text_x=temp_x+temp_w+(large?4:2),text_w=width-2*pad-card_pad-text_x;
  int lines_h=text_h+small_h+(large?2:0);
  detail_text(now,t.available()?weather_text(t.state):"Unavailable",text_x,cy+(hero-lines_h)/2,text_w,detail_font,LV_TEXT_ALIGN_LEFT,ink);
  std::string details;
  if(std::isfinite(weather.feels)){snprintf(b,sizeof(b),"Feels like %.0f°",weather.feels);details=b;}
  if(std::isfinite(t.humidity)){snprintf(b,sizeof(b),"%d%%",(int)std::lround(t.humidity));details+=(details.empty()?"":" · ")+std::string(b);}
  if(std::isfinite(weather.wind)){snprintf(b,sizeof(b),"%.0f %s",weather.wind,weather.wind_unit.empty()?"km/h":weather.wind_unit.c_str());details+=(details.empty()?"":" · ")+std::string(b);}
  detail_text(now,details,text_x,cy+(hero-lines_h)/2+text_h+(large?2:0),text_w,small,LV_TEXT_ALIGN_LEFT,muted);
  // Next hours inside the same card: time, icon, temperature, rain per column.
  if(columns){
    int hy=cy+hero+(large?14:8),col=inner/(int)columns;
    for(unsigned i=0;i<columns;++i){
      const auto &h=weather.hours[i];int x=card_pad+i*col;
      detail_text(now,h.time,x,hy,col,small,LV_TEXT_ALIGN_CENTER,muted);
      detail_text(now,weather_icon(h.condition),x,hy+small_h+(large?4:1),col,mini,LV_TEXT_ALIGN_CENTER,weather_accent(h.condition));
      detail_text(now,std::isfinite(h.temp)?degrees(h.temp):"",x,hy+small_h+mini_h+(large?8:2),col,detail_font,LV_TEXT_ALIGN_CENTER,ink);
      detail_text(now,rain_text(h.rain,h.mm,false),x,hy+small_h+mini_h+text_h+(large?8:3),col,small,LV_TEXT_ALIGN_CENTER,rain);
    }
  }
  y+=card_a_h+(large?12:6);
  // Coming days: a heading and a card with one row per day.
  if(!weather.forecast.size()){detail_text(detail_root,"No daily forecast from Home Assistant",pad,y,width-2*pad,small,LV_TEXT_ALIGN_LEFT,muted);return;}
  if(large){detail_text(detail_root,"Coming days",pad+4,y,width-2*pad,detail_font,LV_TEXT_ALIGN_LEFT,muted);y+=text_h+8;}
  int card_b_h=height-y-(large?10:4);
  auto *days=detail_card(pad,y,width-2*pad,card_b_h);
  int row_pad=large?8:4,row=(card_b_h-2*row_pad)/(int)weather.forecast.size();
  int day_w=large?46:26,icon_x=card_pad+day_w,cond_x=icon_x+mini_h+(large?12:5);
  int high_w=large?52:30,low_w=large?46:28,rain_w=large?120:60,drop_w=tiny_h+(large?4:2);
  int temps_x=width-2*pad-card_pad-high_w-low_w,rain_x=temps_x-(large?14:6)-rain_w;
  for(unsigned i=0;i<weather.forecast.size();++i){
    const auto &f=weather.forecast[i];int ry=row_pad+i*row,tcy=ry+(row-text_h)/2,scy=ry+(row-small_h)/2;
    detail_text(days,f.day,card_pad,tcy,day_w,detail_font,LV_TEXT_ALIGN_LEFT,ink);
    detail_text(days,weather_icon(f.condition),icon_x,ry+(row-mini_h)/2,mini_h+6,mini,LV_TEXT_ALIGN_LEFT,weather_accent(f.condition));
    detail_text(days,weather_text(f.condition),cond_x,scy,std::max(1,rain_x-cond_x-4),small,LV_TEXT_ALIGN_LEFT,muted);
    std::string wet=rain_text(f.rain,f.mm,large);
    if(!wet.empty()){
      detail_text(days,"\U000F058E",rain_x,ry+(row-tiny_h)/2,drop_w,tiny,LV_TEXT_ALIGN_LEFT,rain);
      detail_text(days,wet,rain_x+drop_w,scy,rain_w-drop_w,small,LV_TEXT_ALIGN_LEFT,rain);
    }
    detail_text(days,std::isfinite(f.high)?degrees(f.high):"",temps_x,tcy,high_w,detail_font,LV_TEXT_ALIGN_RIGHT,ink);
    detail_text(days,std::isfinite(f.low)?degrees(f.low):"",temps_x+high_w,scy,low_w,small,LV_TEXT_ALIGN_RIGHT,muted);
  }
}
// ---- Vacuum card ----
// A robot with its state and battery, the two commands used most, and one block that says how it cleans:
// the cleaning mode, then suction and water. Only the rows the chosen mode uses are shown, and they sit
// below the mode, so a tap never moves the control under the finger. Native shapes and labels only.
// Native shapes keep the robot crisp without image buffers or extra layers.
inline lv_obj_t *detail_shape(lv_obj_t *parent,int x,int y,int w,int h,uint32_t color,int radius){
  auto *o=lv_obj_create(parent);lv_obj_remove_style_all(o);lv_obj_set_pos(o,x,y);lv_obj_set_size(o,w,h);
  lv_obj_set_style_radius(o,radius,0);lv_obj_set_style_bg_color(o,lv_color_hex(color),0);lv_obj_set_style_bg_opa(o,LV_OPA_COVER,0);
  lv_obj_remove_flag(o,LV_OBJ_FLAG_CLICKABLE);lv_obj_remove_flag(o,LV_OBJ_FLAG_SCROLLABLE);return o;
}
inline int text_width(const std::string &text,const lv_font_t *font){
  lv_point_t size;lv_text_get_size(&size,text.c_str(),font,0,0,LV_COORD_MAX,LV_TEXT_FLAG_NONE);return size.x;
}
// The state colour, as Home Assistant colours a vacuum: teal while cleaning, blue on the way back, amber
// when paused, red on an error; a docked or idle robot keeps the card's own blue. `tint` is the halo.
struct VacuumLook { uint32_t accent, tint; };
inline VacuumLook vacuum_look(const std::string &state){
  if(state=="cleaning")return {0x009688,0xDCF0EE};
  if(state=="returning")return {0x2196F3,0xE1EFFD};
  if(state=="paused")return {0xFF9800,0xFFF0DA};
  if(state=="error")return {0xF44336,0xFDE4E2};
  return {0x00A6ED,0xEAF5FC};
}
// A robot seen from above on a halo: a white body with a rim, the laser turret, a light bar in the state colour.
inline void vacuum_robot(lv_obj_t *parent,int x,int y,int size,const VacuumLook &look){
  auto *halo=detail_shape(parent,x,y,size,size,look.tint,size/2);
  int r=size*72/100,rim=std::max(1,size/44);
  auto *body=detail_shape(halo,(size-r)/2,(size-r)/2,r,r,0xFFFFFF,r/2);
  lv_obj_set_style_border_width(body,rim,0);lv_obj_set_style_border_color(body,lv_color_hex(0xCEDDE6),0);
  int c=r-2*rim;auto s=[&](int v){return std::max(1,v*c/100);};
  detail_shape(body,s(32),s(10),s(36),s(36),0xE3EBEF,s(18));
  detail_shape(body,s(41),s(19),s(18),s(18),0xA8BCC8,s(9));
  detail_shape(body,s(31),s(70),s(38),std::max(3,s(7)),look.accent,s(4));
}
// A battery like a phone's: outline, level fill (red below 20 %) and a small cap.
inline void vacuum_battery(lv_obj_t *parent,int x,int y,int w,int h,float level){
  int line=std::max(1,h/7),fill_w=w-4*line,fill=std::clamp((int)std::lround(fill_w*level/100.0f),0,fill_w);
  auto *shell=detail_shape(parent,x,y,w,h,0xFFFFFF,std::max(2,h/4));
  lv_obj_set_style_bg_opa(shell,LV_OPA_TRANSP,0);
  lv_obj_set_style_border_width(shell,line,0);lv_obj_set_style_border_color(shell,lv_color_hex(0x7D858D),0);
  if(fill)detail_shape(shell,line,line,fill,h-4*line,level<20?0xE53935:0x46525E,std::max(1,h/9));
  detail_shape(parent,x+w,y+h*3/10,std::max(2,line+1),h-2*(h*3/10),0x7D858D,1);
}
// Battery meter, level and a green bolt while charging, in one row from `x`; returns the row's width.
// Without a parent it only measures.
inline int vacuum_power(lv_obj_t *parent,const Tile &t,int x,int y,const lv_font_t *font,bool large){
  const lv_font_t *bolt_font=large && watch_icon_font?watch_icon_font:mini_icon_font;
  std::string percent=std::to_string((int)std::lround(t.battery))+"%";
  int h=lv_font_get_line_height(font),meter_w=large?30:22,meter_h=large?15:11,gap=large?10:6,words=text_width(percent,font);
  int bolt_w=t.extra().charging && bolt_font?text_width("\U000F0241",bolt_font):0;
  int width=meter_w+3+gap+words+(bolt_w?gap/2+bolt_w:0);
  if(!parent)return width;
  vacuum_battery(parent,x,y+(h-meter_h)/2,meter_w,meter_h,t.battery);
  int px=x+meter_w+3+gap;
  detail_text(parent,percent,px,y,words+2,font,LV_TEXT_ALIGN_LEFT,0x5F6368);
  if(bolt_w)detail_text(parent,"\U000F0241",px+words+gap/2,y+(h-lv_font_get_line_height(bolt_font))/2,bolt_w+2,bolt_font,LV_TEXT_ALIGN_LEFT,0x43A047);
  return width;
}
// Put a detail_button's words in `font`, sized to the words and centred (or at `x` when given).
inline lv_obj_t *button_words(lv_obj_t *button,const lv_font_t *font,uint32_t color,int available,int x=-1){
  auto *label=lv_obj_get_child(button,0);
  lv_obj_set_style_text_font(label,font,0);lv_obj_set_style_text_color(label,lv_color_hex(color),0);
  lv_obj_set_size(label,std::min(available,text_width(lv_label_get_text(label),font)+2),lv_font_get_line_height(font));
  if(x<0)lv_obj_center(label);else lv_obj_align(label,LV_ALIGN_LEFT_MID,x,0);
  return label;
}
// A command button with its icon before the words, the two centred as one group.
inline lv_obj_t *vacuum_command(const char *icon,const char *text,int x,int y,int w,int h,int command,bool primary,
                                const lv_font_t *font,const lv_font_t *icon_font,int radius){
  auto *button=detail_button(text,x,y,w,h,command);
  uint32_t ink=primary?0xFFFFFF:0x1B1B1B;
  lv_obj_set_style_radius(button,radius,0);
  lv_obj_set_style_bg_color(button,lv_color_hex(primary?0x009FE3:0xFFFFFF),0);
  if(!primary){
    lv_obj_set_style_border_width(button,1,0);lv_obj_set_style_border_color(button,lv_color_hex(0xDDDDDD),0);
    lv_obj_set_style_bg_color(button,lv_color_hex(0xEEEEEE),LV_STATE_PRESSED);
  }
  int gap=std::max(6,h/7),icon_w=text_width(icon,icon_font),words=text_width(text,font);
  int group=icon_w+gap+words,left=std::max(4,(w-group)/2);
  auto *glyph=lv_label_create(button);lv_label_set_text(glyph,icon);lv_obj_remove_flag(glyph,LV_OBJ_FLAG_CLICKABLE);
  lv_obj_set_style_text_font(glyph,icon_font,0);lv_obj_set_style_text_color(glyph,lv_color_hex(ink),0);
  lv_obj_align(glyph,LV_ALIGN_LEFT_MID,left,0);
  button_words(button,font,ink,w-left-icon_w-gap-4,left+icon_w+gap);
  return button;
}
// A segmented control: one rounded track, each option as wide as its words plus an equal share of the
// room left, the chosen one filled in blue. Commands first..first+5.
inline void vacuum_segments(const Tile &t,const Choice &row,int first,int x,int y,int w,int h,uint32_t track,bool border,const lv_font_t *font){
  int n=std::min<int>((int)row.values.size(),6);if(!n)return;
  auto *bar=detail_shape(detail_root,x,y,w,h,track,h/2);
  if(border){lv_obj_set_style_border_width(bar,1,0);lv_obj_set_style_border_color(bar,lv_color_hex(0xDDDDDD),0);}
  int inset=std::max(3,h/12),room=w-2*inset,words=0;int widths[6];
  for(int i=0;i<n;++i){widths[i]=text_width(row.labels[i],font);words+=widths[i];}
  int share=(room-words)/n;
  const std::string &chosen=tile_controls::shown_value(t,row,esphome::millis());
  int sx=x+inset;
  for(int i=0;i<n;++i){
    int sw=i==n-1?x+w-inset-sx:(words<=room?widths[i]+share:room/n);
    bool selected=row.values[i]==chosen;
    auto *segment=detail_button(row.labels[i].c_str(),sx,y+inset,sw,h-2*inset,first+i);
    lv_obj_set_style_radius(segment,(h-2*inset)/2,0);
    lv_obj_set_style_bg_color(segment,lv_color_hex(0x009FE3),0);
    lv_obj_set_style_bg_opa(segment,selected?LV_OPA_COVER:LV_OPA_TRANSP,0);
    lv_obj_set_style_bg_opa(segment,LV_OPA_COVER,LV_STATE_PRESSED);
    if(!selected)lv_obj_set_style_bg_color(segment,lv_color_hex(0xD5EEFC),LV_STATE_PRESSED);
    button_words(segment,font,selected?0xFFFFFF:0x1B1B1B,sw-6);
    sx+=sw;
  }
}
inline void render_vacuum_detail(Tile &t,bool large,int width,int height,int pad){
  uint32_t now=esphome::millis();
  auto rows=tile_controls::vacuum_rows(t,now);
  const Choice *mode=t.choice('m'),*suction=rows.suction?t.choice('s'):nullptr,*water=rows.water?t.choice('w'):nullptr;
  bool automatic=mode && tile_controls::vacuum_role(t,now)=='a';
  const lv_font_t *text=large?detail_font:(control_font?control_font:detail_font);
  const lv_font_t *big=watch_font?watch_font:detail_font;
  const lv_font_t *icons=mini_icon_font?mini_icon_font:detail_font;
  VacuumLook look=vacuum_look(t.state);
  bool cleaning=t.state=="cleaning",paused=t.state=="paused";
  bool battery=std::isfinite(t.battery),on_the_way=cleaning||paused||t.state=="returning";
  int inner=width-2*pad,gap=large?12:6,radius=lv_obj_get_style_radius(widgets[0].tile,LV_PART_MAIN);
  std::string state=t.awaiting_action(now)&&!t.confirmed?"Command sent...":detail_state(t);
  // A robot with little to set gets a hero on the small screen too; one with mode and water rows uses a status row.
  bool small_hero=!large && !mode && !t.choice('w');
  int y=large?92:52;
  if(large || small_hero){
    int hero_h=large?108:60,robot=large?84:48,edge=large?12:6;
    auto *hero=detail_card(pad,y,inner,hero_h);
    vacuum_robot(hero,edge,(hero_h-robot)/2,robot,look);
    // Locate, when the robot can do it (supported_features 512; unknown features keep the button).
    bool locate=large && (!t.supported || (t.supported & 512));
    int key=48,text_x=edge+robot+(large?18:12),text_w=inner-text_x-(locate?key+2*edge:edge);
    int line=lv_font_get_line_height(big),text_h=lv_font_get_line_height(text),space=large?6:3;
    bool room=on_the_way && !t.extra().room.empty();
    int block=line+(room?space+text_h:0)+(battery?space+text_h:0),ty=(hero_h-block)/2;
    detail_badge_status=detail_text(hero,state,text_x,ty,text_w,big,LV_TEXT_ALIGN_LEFT,0x1B1B1B);
    ty+=line;
    if(room){ty+=space;detail_text(hero,t.extra().room,text_x,ty,text_w,text,LV_TEXT_ALIGN_LEFT,0x5F6368);ty+=text_h;}
    if(battery){ty+=space;vacuum_power(hero,t,text_x,ty,text,large);}
    if(locate){
      auto *find=detail_button("",pad+inner-edge-key-6,y+(hero_h-key)/2,key,key,3);
      lv_obj_set_style_radius(find,LV_RADIUS_CIRCLE,0);lv_obj_set_style_bg_color(find,lv_color_hex(0xF1F1F1),0);
      lv_obj_set_style_bg_color(find,lv_color_hex(0xDDDDDD),LV_STATE_PRESSED);
      auto *glyph=lv_obj_get_child(find,0);lv_obj_set_style_text_font(glyph,icons,0);lv_label_set_text(glyph,"\U000F034E");
      lv_obj_set_style_text_color(glyph,lv_color_hex(0x46525E),0);lv_obj_set_size(glyph,LV_SIZE_CONTENT,LV_SIZE_CONTENT);lv_obj_center(glyph);
    }
    y+=hero_h+gap;
  }else{
    // Status row: a dot in the state colour, the state (and the room on the way), the battery at the right.
    int line=lv_font_get_line_height(text),dot=8,power_w=battery?vacuum_power(nullptr,t,0,0,text,false):0;
    detail_shape(detail_root,pad+2,y+(line-dot)/2,dot,dot,look.accent,dot/2);
    int words=inner-dot-10-power_w-12,state_w=std::min(words,text_width(state,text)+2);
    detail_badge_status=detail_text(detail_root,state,pad+dot+10,y,state_w,text,LV_TEXT_ALIGN_LEFT,0x1B1B1B);
    if(on_the_way && !t.extra().room.empty() && words-state_w>24)
      detail_text(detail_root," · "+t.extra().room,pad+dot+10+state_w,y,words-state_w,text,LV_TEXT_ALIGN_LEFT,0x5F6368);
    if(battery)vacuum_power(detail_root,t,pad+inner-power_w,y,text,false);
    y+=line+(gap+4);
  }
  // Start (or pause, or resume) as the one blue button, dock beside it.
  int action_h=large?54:(small_hero?40:36),start_w=large?(inner-gap)*2/3:(inner-gap)/2;
  vacuum_command(cleaning?"\U000F03E4":"\U000F040A",cleaning?(large?"Pause cleaning":"Pause"):paused?"Resume":(large?"Start cleaning":"Clean"),
                 pad,y,start_w,action_h,cleaning?1:0,true,text,icons,large?radius:action_h/2);
  vacuum_command("\U000F05F8","Dock",pad+start_w+gap,y,inner-start_w-gap,action_h,2,false,text,icons,large?radius:action_h/2);
  y+=action_h+gap;
  if(!mode && !suction && !water){
    auto *note=detail_text(detail_root,"Automatic suction power",pad,y+gap,inner,text,LV_TEXT_ALIGN_CENTER,0x6B6B6B);(void)note;
    return;
  }
  // How it cleans. The Guition groups the rows on one white card; the small screen has no room for a card.
  int mode_h=large?48:34,row_h=large?44:32,step=large?10:6,edge=large?14:0,icon_w=large?40:26;
  int note_h=lv_font_get_line_height(text);
  int block=(mode?mode_h:0)+(suction?(mode?step:0)+row_h:0)+(water?((mode||suction)?step:0)+row_h:0)+(automatic?step+note_h+step:0);
  uint32_t track=large?0xF1F1F1:0xFFFFFF;
  if(large)detail_card(pad,y,inner,block+2*edge);
  int x=pad+edge,w=inner-2*edge;
  y+=edge;
  if(mode){vacuum_segments(t,*mode,50,x,y,w,mode_h,track,!large,text);y+=mode_h+step;}
  auto level=[&](const Choice &row,int first,const char *icon){
    detail_text(detail_root,icon,x,y+(row_h-lv_font_get_line_height(icons))/2,icon_w,icons,LV_TEXT_ALIGN_LEFT,0x6B6B6B);
    vacuum_segments(t,row,first,x+icon_w,y,w-icon_w,row_h,track,!large,text);
    y+=row_h+step;
  };
  if(suction)level(*suction,10,"\U000F0210");
  if(water)level(*water,60,"\U000F058C");
  if(automatic){
    bool smart=tile_controls::shown_value(t,*mode,now).find("smart")!=std::string::npos;
    detail_text(detail_root,smart?"The robot chooses suction and water":"Suction and water as set per room",x,y,w,text,LV_TEXT_ALIGN_CENTER,0x6B6B6B);
  }
}
inline void show_detail(unsigned index){
  if(index>=model.count)return;detail_index=index;auto &t=model.tiles[index];
  if(!detail_font)detail_font=lv_obj_get_style_text_font(widgets[0].title,LV_PART_MAIN);
  if(!detail_root){detail_root=lv_obj_create(lv_screen_active());lv_obj_remove_style_all(detail_root);lv_obj_set_size(detail_root,lv_pct(100),lv_pct(100));lv_obj_remove_flag(detail_root,LV_OBJ_FLAG_SCROLLABLE);}
  detail_action_count=0;detail_status=nullptr;detail_badge_status=nullptr;detail_switch=nullptr;lv_obj_clean(detail_root);lv_obj_remove_flag(detail_root,LV_OBJ_FLAG_HIDDEN);lv_obj_move_foreground(detail_root);
  lv_obj_set_style_bg_color(detail_root,lv_color_hex(0xE7E7E7),0);lv_obj_set_style_bg_opa(detail_root,LV_OPA_COVER,0);
  int width=lv_display_get_horizontal_resolution(lv_display_get_default()), height=lv_display_get_vertical_resolution(lv_display_get_default());
  bool large=width>=480;int pad=large?20:10, top=large?100:62, gap=large?12:6,bh=large?58:34,cw=(width-pad*2-gap)/2;
  // The same top bar as the board's own cards: a round back arrow at the left, the name centred.
  int bar=large?60:40,bar_x=large?16:10,bar_y=large?16:8;
  auto *back=detail_button("",bar_x,bar_y,bar,bar,-1);lv_obj_set_style_radius(back,LV_RADIUS_CIRCLE,0);lv_obj_set_style_bg_color(back,lv_color_hex(0xEEEEEE),0);
  auto *arrow=lv_obj_get_child(back,0);if(mini_icon_font)lv_obj_set_style_text_font(arrow,mini_icon_font,0);lv_label_set_text(arrow,"\U000F004D");lv_obj_set_size(arrow,LV_SIZE_CONTENT,LV_SIZE_CONTENT);lv_obj_center(arrow);
  const lv_font_t *title_font=watch_font?watch_font:detail_font;
  auto *heading=detail_label(detail_root,t.name,bar_x+bar+8,bar_y+(bar-lv_font_get_line_height(title_font))/2,width-2*(bar_x+bar+8));
  lv_obj_set_style_text_font(heading,title_font,0);lv_obj_set_height(heading,lv_font_get_line_height(title_font));lv_obj_set_style_text_align(heading,LV_TEXT_ALIGN_CENTER,0);
  std::string state=detail_state(t);
  auto d=t.domain();
  // The vacuum card draws its own state (hero or status row) with the battery beside it.
  if(d!="vacuum"){detail_status=detail_label(detail_root,state+(t.unit.empty()?"":" "+t.unit),pad,large?80:50,width-2*pad);lv_obj_set_style_text_align(detail_status,LV_TEXT_ALIGN_CENTER,0);lv_obj_set_style_text_color(detail_status,lv_color_hex(0x616161),0);}
  if(t.is_switch()){
    detail_label(detail_root,"Tap to toggle",pad,top,width-2*pad);
    detail_switch=lv_switch_create(detail_root);
    lv_obj_set_size(detail_switch,large?240:140,large?112:64);
    lv_obj_set_pos(detail_switch,(width-(large?240:140))/2,top+(large?65:30));
    lv_obj_set_style_bg_color(detail_switch,lv_color_hex(0xB0B0B0),LV_PART_MAIN);
    lv_obj_set_style_bg_color(detail_switch,lv_color_hex(0xFFB900),LV_PART_INDICATOR|LV_STATE_CHECKED);
    lv_obj_set_style_bg_color(detail_switch,lv_color_hex(0xFFFFFF),LV_PART_KNOB);
    lv_obj_set_style_opa(detail_switch,LV_OPA_50,LV_STATE_DISABLED);
    if(t.state=="on")lv_obj_add_state(detail_switch,LV_STATE_CHECKED);
    lv_obj_add_event_cb(detail_switch,[](lv_event_t *e){
      if(detail_index>=model.count)return;
      auto &tile=model.tiles[detail_index];auto *control=lv_event_get_target_obj(e);
      bool allowed=fresh() && tile.available() && !tile.awaiting_action(esphome::millis()) &&
        cyd::touch_guard.accept(esphome::millis(),350);
      bool requested_on=lv_obj_has_state(control,LV_STATE_CHECKED);
      // Only HA's reported state is authoritative, including a refused/failed command.
      if(tile.state=="on")lv_obj_add_state(control,LV_STATE_CHECKED);else lv_obj_remove_state(control,LV_STATE_CHECKED);
      if(allowed)action(tile.domain()+(requested_on?".turn_on":".turn_off"),tile.entity);
    },LV_EVENT_VALUE_CHANGED,nullptr);
    detail_actions[detail_action_count++]=detail_switch;
  }else if(d=="vacuum"){
    render_vacuum_detail(t,large,width,height,pad);
  }else if(d=="sensor"){
    float minimum=INFINITY,maximum=-INFINITY;for(float value:t.history)if(t.has_history&&std::isfinite(value)){minimum=std::min(minimum,value);maximum=std::max(maximum,value);}
    if(!std::isfinite(minimum)){detail_label(detail_root,"No numeric HA history",pad,top,width-2*pad);return;}
    char text[100];snprintf(text,sizeof(text),"%u hours / %.2f - %.2f %s",t.history_hours,minimum,maximum,t.unit.c_str());detail_label(detail_root,text,pad,top,width-2*pad);
    int chart_y=top+(large?46:28),chart_h=height-chart_y-30,bar_w=(width-pad*2)/24;
    for(unsigned i=0;i<t.history.size() && i<24;++i){if(!std::isfinite(t.history[i]))continue;int h=maximum>minimum?8+(chart_h-8)*(t.history[i]-minimum)/(maximum-minimum):chart_h/2;
      auto *bar=lv_obj_create(detail_root);lv_obj_remove_style_all(bar);lv_obj_set_pos(bar,pad+i*bar_w,chart_y+chart_h-h);lv_obj_set_size(bar,std::max(2,bar_w-2),h);lv_obj_set_style_bg_color(bar,lv_color_hex(0x16A5E6),0);lv_obj_set_style_bg_opa(bar,LV_OPA_COVER,0);}
    detail_label(detail_root,std::to_string(t.history_hours)+" hours ago",pad,height-24,(width-2*pad)/2);
    auto *now=detail_label(detail_root,"Now",width/2,height-24,width/2-pad);lv_obj_set_style_text_align(now,LV_TEXT_ALIGN_RIGHT,0);
  }else if(d=="select"||d=="input_select"){
    const auto &options=t.extra().options;
    for(unsigned i=0;i<options.size();++i)detail_button(options[i].c_str(),pad+(i%2)*(cw+gap),top+(i/2)*(bh+gap),cw,bh,30+i);
  }else if(d=="number"||d=="input_number"||d=="media_player"){
    if(d=="media_player"){
      detail_label(detail_root,t.extra().media_title,pad,top,width-2*pad);top+=large?45:25;
      int w=(width-pad*2-2*gap)/3;
      detail_button("Previous",pad,top,w,bh,21);detail_button("Play/pause",pad+w+gap,top,w,bh,20);detail_button("Next",pad+2*(w+gap),top,w,bh,22);top+=bh+gap;
    }
    detail_label(detail_root,d=="media_player"?"Volume":"Value",pad,top,width-2*pad);
    auto *slider=lv_slider_create(detail_root);lv_obj_set_pos(slider,pad+12,top+(large?52:34));lv_obj_set_size(slider,width-2*pad-24,large?24:16);lv_slider_set_range(slider,0,1000);lv_slider_set_value(slider,slider_value(t),LV_ANIM_OFF);lv_obj_set_style_bg_color(slider,lv_color_hex(0x111111),LV_PART_KNOB);
    lv_obj_add_event_cb(slider,slider_event,LV_EVENT_ALL,(void*)(uintptr_t)index);
  }else if(d=="weather"){
    render_weather_detail(t,large,width,height,pad);
  }else if(d=="timer"){
    detail_label(detail_root,t.state=="active"?"Running":t.state=="paused"?"Paused":"Stopped",pad,top,width-2*pad);
    detail_button(t.state=="active"?"Pause":"Start",pad,top+(large?50:30),cw,bh,40);
    detail_button("Cancel",pad+cw+gap,top+(large?50:30),cw,bh,41);
  }else if(d=="sun"){
    detail_label(detail_root,"Sunrise "+t.extra().sunrise,pad,top,width-2*pad);
    detail_label(detail_root,"Sunset "+t.extra().sunset,pad,top+lv_font_get_line_height(detail_font)+(large?10:4),width-2*pad);
  }
}
}

namespace runtime_tiles {
inline void refresh_detail(unsigned index){
  if(!detail_root || lv_obj_has_flag(detail_root,LV_OBJ_FLAG_HIDDEN) || detail_index!=index)return;
  auto *input=lv_indev_get_next(nullptr);if(input && lv_indev_get_state(input)==LV_INDEV_STATE_PRESSED)return;
  show_detail(index);
}
// Home Assistant weather conditions mapped to Material Design Icons glyphs.
inline const char *weather_icon(const std::string &condition) {
  if (condition == "sunny") return "\U000F0599";
  if (condition == "clear-night") return "\U000F0594";
  if (condition == "cloudy") return "\U000F0590";
  if (condition == "partlycloudy") return "\U000F0595";
  if (condition == "rainy") return "\U000F0597";
  if (condition == "pouring") return "\U000F0596";
  if (condition == "snowy") return "\U000F0598";
  if (condition == "snowy-rainy") return "\U000F067F";
  if (condition == "fog") return "\U000F0591";
  if (condition == "hail") return "\U000F0592";
  if (condition == "lightning") return "\U000F0593";
  if (condition == "lightning-rainy") return "\U000F067E";
  if (condition == "windy" || condition == "windy-variant") return "\U000F059D";
  if (condition == "exceptional") return "\U000F05D6";
  return "\U000F0595";
}
inline const char *weather_text(const std::string &condition) {
  if (condition == "sunny") return "Sunny";
  if (condition == "clear-night") return "Clear, night";
  if (condition == "cloudy") return "Cloudy";
  if (condition == "partlycloudy") return "Partly cloudy";
  if (condition == "rainy") return "Rainy";
  if (condition == "pouring") return "Pouring";
  if (condition == "snowy") return "Snowy";
  if (condition == "snowy-rainy") return "Snowy, rainy";
  if (condition == "fog") return "Fog";
  if (condition == "hail") return "Hail";
  if (condition == "lightning") return "Lightning";
  if (condition == "lightning-rainy") return "Lightning, rainy";
  if (condition == "windy" || condition == "windy-variant") return "Windy";
  if (condition == "exceptional") return "Exceptional";
  return condition.c_str();
}
inline const char *icon_for(const Tile &tile) {
  if (!tile.icon.empty()) return tile.icon.c_str();
  auto d = tile.domain();
  if (d == "light") return "\U000F0335";
  if (d == "climate") return "\U000F001B";
  if (d == "vacuum") return "\U000F070D";
  if (d == "fan") return "\U000F0210";
  if (d == "cover") return "\U000F111C";
  if (d == "scene" || d == "script") return "\U000F04B9";
  if (d == "weather") return tile.available() ? weather_icon(tile.state) : "\U000F0595";
  if (d == "sensor" || d == "binary_sensor") return "\U000F029A";
  if (d == "sun") return tile.state == "above_horizon" ? "\U000F059B" : "\U000F059C";
  if (d == "timer") return "\U000F051B";
  if (d == "person") return "\U000F0004";
  if (d == "screen") return tile.is_settings() ? "\U000F0493" : "\U000F0150";
  return "\U000F0425";
}
// HA duration strings ("0:05:00") to seconds; 0 when unusable.
inline uint32_t duration_seconds(const std::string &text) {
  unsigned h = 0, m = 0, s = 0;
  if (sscanf(text.c_str(), "%u:%u:%u", &h, &m, &s) == 3) return h * 3600 + m * 60 + s;
  if (sscanf(text.c_str(), "%u:%u", &m, &s) == 2) return m * 60 + s;
  return 0;
}
inline std::string countdown(uint32_t seconds) {
  char b[16];
  if (seconds >= 3600) snprintf(b, sizeof(b), "%u:%02u:%02u", seconds / 3600, seconds / 60 % 60, seconds % 60);
  else snprintf(b, sizeof(b), "%u:%02u", seconds / 60, seconds % 60);
  return b;
}
// "Last 14:32" today, "Yesterday 14:32", else "Last 13 Sep"; scripts and scenes have no useful on/off.
inline std::string month_short(const esphome::ESPTime &now);
inline std::string last_run_text(uint32_t epoch) {
  if (!epoch) return "Never run";
  auto when = esphome::ESPTime::from_epoch_local(epoch);
  auto now = now_time ? now_time() : esphome::ESPTime{};
  if (!when.is_valid()) return "Never run";
  char clock[8]; snprintf(clock, sizeof(clock), "%02d:%02d", when.hour, when.minute);
  if (now.is_valid() && now.year == when.year && now.day_of_year == when.day_of_year) return std::string("Last ") + clock;
  if (now.is_valid() && now.year == when.year && now.day_of_year == when.day_of_year + 1) return std::string("Yesterday ") + clock;
  return "Last " + std::to_string(when.day_of_month) + " " + month_short(when);
}
inline std::string timer_text(const Tile &t) {
  const Extra &x = t.extra();
  if (t.state == "active") { uint32_t now = now_epoch(); return countdown(x.timer_end > now && now ? x.timer_end - now : 0); }
  if (t.state == "paused") return "Paused " + countdown(duration_seconds(x.remaining));
  return x.duration.empty() ? "Off" : countdown(duration_seconds(x.duration));
}
inline std::string weekday_text(const esphome::ESPTime &now) {
  static const char *days[] = {"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"};
  return now.is_valid() && now.day_of_week >= 1 && now.day_of_week <= 7 ? days[now.day_of_week - 1] : "";
}
inline std::string month_short(const esphome::ESPTime &now) {
  static const char *months[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
  return now.is_valid() && now.month >= 1 && now.month <= 12 ? months[now.month - 1] : "";
}
inline std::string date_text(const esphome::ESPTime &now) {
  static const char *months[] = {"January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"};
  if (!now.is_valid() || now.day_of_week < 1 || now.day_of_week > 7 || now.month < 1 || now.month > 12) return "";
  return weekday_text(now) + " " + std::to_string(now.day_of_month) + " " + months[now.month - 1];
}
inline void event(lv_event_t *event) {
  auto &w = *static_cast<Widgets *>(lv_event_get_user_data(event));
  if (!enabled || w.index >= model.count) return;
  auto code = lv_event_get_code(event);
  if (code != LV_EVENT_SHORT_CLICKED && code != LV_EVENT_LONG_PRESSED) return;
  // The built-in cards need nothing from Home Assistant: the settings card opens the screen's own page with
  // the link down too, as its card says (firmware 0.2.49+), and the clock card does nothing under a finger.
  if (model.tiles[w.index].builtin()) {
    auto &card = model.tiles[w.index];
    if (!card.is_settings() || card.tap == "none" || (settings_screen::may_open && !settings_screen::may_open())) return;
    if (allowed(esphome::millis(), 100 + w.index, card.entity)) settings_screen::open();
    return;
  }
  if (!fresh()) return;
  if (!allowed(esphome::millis(), 100 + w.index, model.tiles[w.index].entity)) return;
  auto &tile = model.tiles[w.index];
  auto d = tile.domain();
  // Scenes/scripts often have timestamps or 'off'; unavailable devices never act.
  if (!tile.available() || tile.loading(esphome::millis()) || tile.tap=="none") return;
  bool open = code == LV_EVENT_LONG_PRESSED || d == "climate" || d == "vacuum" || d == "cover";
  if(code==LV_EVENT_SHORT_CLICKED && tile.tap=="detail")open=true;
  if(code==LV_EVENT_SHORT_CLICKED && tile.tap=="toggle")open=false;
  if(d=="media_player" && tile.tap=="toggle" && code==LV_EVENT_SHORT_CLICKED){action("media_player.toggle",tile.entity);return;}
  if(d=="climate" && tile.tap=="toggle" && code==LV_EVENT_SHORT_CLICKED){action("climate.toggle",tile.entity);return;}
  // A short tap runs or pauses the timer; holding opens the card with a cancel button.
  if(d=="timer" && !open){action(tile.state=="active"?"timer.pause":"timer.start",tile.entity);return;}
  if(d=="sensor" || d=="binary_sensor" || d=="weather" || d=="number" || d=="input_number" || d=="select" || d=="input_select" || d=="media_player" || d=="vacuum" || d=="sun" || d=="person" || d=="timer") { tile.begin(esphome::millis(),true); active_index=w.index; show_detail(w.index); return; }
  if (open) {
    if (d == "light" || d == "climate" || d == "vacuum" || d == "fan" || d == "cover") {
      active_index = w.index;
      tile.begin(esphome::millis(),true);
      if (detail) detail(tile);
    } else { active_index=w.index;show_detail(w.index); }
    return;
  }
  if (d == "light" || d == "switch" || d == "input_boolean" || d == "fan") action(d + ".toggle", tile.entity);
  if (d == "scene" || d == "script") action(d + ".turn_on", tile.entity);
  if (d == "button" || d == "input_button") action(d + ".press", tile.entity);
}
// The same guard for any local style: a page switch mostly hands a slot the colours it already has,
// and each real set refreshes the style and invalidates the object (about 0.3 ms on the Guition).
inline void set_color(lv_obj_t *obj, lv_style_prop_t prop, lv_color_t color, lv_style_selector_t selector = 0) {
  lv_style_value_t current;
  if (lv_obj_get_local_style_prop(obj, prop, &current, selector) == LV_STYLE_RES_FOUND && lv_color_eq(current.color, color)) return;
  lv_style_value_t value{}; value.color = color;
  lv_obj_set_local_style_prop(obj, prop, value, selector);
}
inline void set_number(lv_obj_t *obj, lv_style_prop_t prop, int32_t number, lv_style_selector_t selector = 0) {
  lv_style_value_t current;
  if (lv_obj_get_local_style_prop(obj, prop, &current, selector) == LV_STYLE_RES_FOUND && current.num == number) return;
  lv_style_value_t value{}; value.num = number;
  lv_obj_set_local_style_prop(obj, prop, value, selector);
}
// Card sliders follow Home Assistant's control slider (a 42 px track there): corners of 12 and
// 8 px on track and fill, a white handle 4 px wide and half the height, an eighth of the height in
// from the end of the fill, and a fill that never gets shorter than a third of the height. LVGL
// centres the knob on the end of the fill, so the knob is narrowed and moved back; the range starts
// below zero, so at 0 the fill is still that short stub holding the handle. Values below zero never
// leave the slider (see slider_event). Small strips keep round ends: the corners would not show.
inline int slider_handle_width(int height) { return height > 20 ? 4 : 2; }
inline int slider_stub(int height) { return std::max(height / 3, 2 * std::max(1, height / 8) + slider_handle_width(height)); }
inline void slider_handle(lv_obj_t *slider, int width, int height) {
  int handle = slider_handle_width(height), inset = std::max(1, height / 8) + handle / 2, half = height >> 1;
  // Track and fill share one radius: a fill rounded less than its track makes LVGL draw the fill into
  // a buffer of its own size on every redraw (15 KB on a CYD card), which the CYD's heap can't spare.
  int corner = height > 20 ? height * 12 / 42 : LV_RADIUS_CIRCLE;
  set_number(slider, LV_STYLE_RADIUS, corner, LV_PART_MAIN);
  set_number(slider, LV_STYLE_RADIUS, corner, LV_PART_INDICATOR);
  set_number(slider, LV_STYLE_PAD_LEFT, inset + handle / 2 - half, LV_PART_KNOB);
  set_number(slider, LV_STYLE_PAD_RIGHT, handle / 2 - inset - (height - half), LV_PART_KNOB);
  set_number(slider, LV_STYLE_PAD_TOP, -(height / 4), LV_PART_KNOB);
  set_number(slider, LV_STYLE_PAD_BOTTOM, -(height / 4), LV_PART_KNOB);
  int stub = slider_stub(height), below = width > stub ? 1000 * stub / (width - stub) : 0;
  if (lv_slider_get_min_value(slider) != -below || lv_slider_get_max_value(slider) != 1000) lv_slider_set_range(slider, -below, 1000);
}
// An off light or fan shows only the grey track, as in Home Assistant: no fill, no handle.
inline void slider_bar(lv_obj_t *slider, bool shown) {
  set_number(slider, LV_STYLE_BG_OPA, shown ? LV_OPA_COVER : LV_OPA_TRANSP, LV_PART_INDICATOR);
  set_number(slider, LV_STYLE_BG_OPA, shown ? LV_OPA_COVER : LV_OPA_TRANSP, LV_PART_KNOB);
}
inline bool slider_bar_shown(const Tile &t, bool on) { auto d = t.domain(); return on || (d != "light" && d != "fan"); }
inline void set_hidden(lv_obj_t *obj, bool hidden) { if (hidden) lv_obj_add_flag(obj, LV_OBJ_FLAG_HIDDEN); else lv_obj_remove_flag(obj, LV_OBJ_FLAG_HIDDEN); }
// A card's size as its styles request it. LVGL's own getters only follow after a layout pass, and
// that pass walks every object on the screen, so the cards are laid out without asking for one.
inline int tile_width(const Widgets &w) {
  int32_t width = lv_obj_get_style_width(w.tile, LV_PART_MAIN);
  return LV_COORD_IS_PX(width) ? width : lv_obj_get_width(w.tile);
}
inline int content_width(const Widgets &w) {
  return tile_width(w) - lv_obj_get_style_space_left(w.tile, LV_PART_MAIN) - lv_obj_get_style_space_right(w.tile, LV_PART_MAIN);
}
inline int content_height(const Widgets &w) {
  return lv_obj_get_height(w.tile) - lv_obj_get_style_space_top(w.tile, LV_PART_MAIN) - lv_obj_get_style_space_bottom(w.tile, LV_PART_MAIN);
}
inline void bind(size_t index, lv_obj_t *tile, lv_obj_t *title, lv_obj_t *value, lv_obj_t *circle, lv_obj_t *icon) {
  lv_obj_update_layout(tile);
  // Compact cards need room for two text lines and a separate dimmer track.
  if(lv_obj_get_height(tile)<=80){lv_obj_set_style_pad_top(tile,4,0);lv_obj_set_style_pad_bottom(tile,4,0);}
  lv_obj_set_style_border_width(tile,1,0);
  lv_obj_update_layout(tile);
  widgets[index] = {tile, title, value, circle, icon, index};
  auto &w=widgets[index]; w.title_x=lv_obj_get_x(title);w.title_y=lv_obj_get_y(title);w.value_x=lv_obj_get_x(value);w.value_y=lv_obj_get_y(value);w.value_font=lv_obj_get_style_text_font(value,LV_PART_MAIN);
  w.base_width=lv_obj_get_width(tile);
  w.icon_font=lv_obj_get_style_text_font(icon,LV_PART_MAIN);
  w.unit=lv_label_create(tile);lv_obj_set_style_text_font(w.unit,w.value_font,0);lv_obj_remove_flag(w.unit,LV_OBJ_FLAG_CLICKABLE);lv_obj_add_flag(w.unit,LV_OBJ_FLAG_HIDDEN);
  // Fixed one-line boxes prevent wrapped names from overlapping the state on both boards.
  lv_obj_set_height(title,lv_font_get_line_height(lv_obj_get_style_text_font(title,LV_PART_MAIN)));
  lv_obj_set_height(value,lv_font_get_line_height(w.value_font));
  lv_label_set_long_mode(title,LV_LABEL_LONG_DOT);lv_label_set_long_mode(value,LV_LABEL_LONG_DOT);
  w.progress=lv_obj_create(tile);lv_obj_remove_style_all(w.progress);lv_obj_set_size(w.progress,0,3);lv_obj_align(w.progress,LV_ALIGN_BOTTOM_LEFT,0,0);lv_obj_add_flag(w.progress,LV_OBJ_FLAG_HIDDEN);
  w.slider=lv_slider_create(tile);lv_obj_set_size(w.slider,lv_obj_get_width(tile)-24,lv_obj_get_height(tile)>80?28:10);lv_obj_align(w.slider,LV_ALIGN_BOTTOM_MID,0,0);lv_slider_set_range(w.slider,0,1000);
  // A short white bar inside the fill as handle, like the control sliders (invisible before 0.2.20).
  int strip=lv_obj_get_height(tile)>80?28:10;
  lv_obj_set_style_bg_color(w.slider,lv_color_hex(0xFFFFFF),LV_PART_KNOB);lv_obj_set_style_bg_opa(w.slider,LV_OPA_COVER,LV_PART_KNOB);
  slider_handle(w.slider,lv_obj_get_width(tile)-24,strip);
  lv_obj_set_style_border_width(w.slider,0,LV_PART_KNOB);lv_obj_set_style_shadow_width(w.slider,0,LV_PART_KNOB);
  lv_obj_set_style_radius(w.slider,2,LV_PART_KNOB);lv_obj_set_style_bg_color(w.slider,lv_color_hex(0xFCE5B4),LV_PART_MAIN);lv_obj_set_style_bg_color(w.slider,lv_color_hex(0xFFB900),LV_PART_INDICATOR);
  lv_obj_add_flag(w.slider,LV_OBJ_FLAG_HIDDEN);
  lv_obj_remove_flag(w.slider,LV_OBJ_FLAG_GESTURE_BUBBLE);
  lv_obj_add_event_cb(w.slider,slider_event,LV_EVENT_ALL,(void*)(uintptr_t)index);
  lv_obj_add_event_cb(tile, event, LV_EVENT_SHORT_CLICKED, &widgets[index]);
  lv_obj_add_event_cb(tile, event, LV_EVENT_LONG_PRESSED, &widgets[index]);
}
inline void label(lv_obj_t *obj, const std::string &text) {
  if (text != lv_label_get_text(obj)) lv_label_set_text(obj, text.c_str());
}
// lv_obj_set_style_* always invalidates the object; these only do so on a real change,
// which keeps a one-second clock tick or a busy spinner from redrawing whole cards.
inline void set_font(lv_obj_t *obj, const lv_font_t *value) { if (lv_obj_get_style_text_font(obj, LV_PART_MAIN) != value) lv_obj_set_style_text_font(obj, value, 0); }
inline void set_text_align(lv_obj_t *obj, lv_text_align_t value) { if (lv_obj_get_style_text_align(obj, LV_PART_MAIN) != value) lv_obj_set_style_text_align(obj, value, 0); }
inline void pad_vertical(lv_obj_t *obj, int value) {
  if (lv_obj_get_style_pad_top(obj, LV_PART_MAIN) != value) lv_obj_set_style_pad_top(obj, value, 0);
  if (lv_obj_get_style_pad_bottom(obj, LV_PART_MAIN) != value) lv_obj_set_style_pad_bottom(obj, value, 0);
}
inline void set_line_width(lv_obj_t *obj, int value) { if (lv_obj_get_style_line_width(obj, LV_PART_MAIN) != value) lv_obj_set_style_line_width(obj, value, 0); }
// HA's default domain/state palette. Pastel circles also identify inactive domains.
// Custom Lovelace card/theme CSS is not an entity attribute and is not imported.
inline uint32_t domain_accent(const Tile &t) {
  auto d=t.domain();
  if(d=="light" || d=="switch" || d=="input_boolean" || d=="binary_sensor")return 0xFFC107;
  // A climate card that is off or in an unknown mode keeps HA's orange climate circle.
  if(d=="climate"){uint32_t c=tile_controls::mode_color(t.state);return c==0x9E9E9E?0xFF9800:c;}
  if(d=="vacuum")return t.state=="error"?0xF44336:0x009688;
  if(d=="fan")return 0x00BCD4;
  if(d=="cover")return 0x926BC7;
  if(d=="media_player")return 0x03A9F4;
  if(d=="scene" || d=="script")return 0x926BC7;
  if(d=="select" || d=="input_select")return 0x3F51B5;
  if(d=="number" || d=="input_number")return 0x009688;
  if(d=="weather")return t.state=="sunny"?0xFFC107:t.state=="clear-night"?0x6E41AB:0x03A9F4;
  if(d=="sun")return t.state=="above_horizon"?0xFF9800:0x6E41AB;
  if(d=="timer")return t.state=="active"?0x009688:t.state=="paused"?0xFF9800:0x9E9E9E;
  if(d=="person")return t.state=="home"?0x4CAF50:0x9E9E9E;
  if(d=="screen")return 0x2196F3;
  if(d=="sensor"){
    if(t.unit=="lx")return 0xFFC107;
    if(t.unit=="°C" || t.unit=="°F")return 0xFF6F22;
    if(t.unit=="kWh" || t.unit=="Wh")return 0x926BC7;
    if(t.unit=="%")return 0x009688;
  }
  return 0x2196F3;
}
// Custom cards draw into a transparent `extra` container; parts are rebuilt only
// when a slot changes mode, so paging keeps RAM use flat on the CYD.
// A slot whose next card draws no custom part only hides them: paging back to the clock or
// graph in that slot reuses its objects instead of creating them again (tens of ms per card).
inline void hide_extra(Widgets &w) {
  if(!w.extra)return;
  if(!lv_obj_has_flag(w.extra,LV_OBJ_FLAG_HIDDEN))lv_obj_add_flag(w.extra,LV_OBJ_FLAG_HIDDEN);
  w.fill_points=nullptr;w.fill_count=0;
}
inline void end_extra(Widgets &w) {
  if(!w.extra)return;
  hide_extra(w);
  if(!w.extra_mode.empty()){lv_obj_clean(w.extra);w.parts.fill(nullptr);w.extra_mode.clear();delete[] w.points;w.points=nullptr;}
}
// Two triangles per segment between the polyline and its baseline. No canvas
// buffer is needed, so the CYD can afford it as well.
inline void extra_draw(lv_event_t *e) {
  auto &w=*static_cast<Widgets *>(lv_event_get_user_data(e));
  if(!w.fill_points || w.fill_count<2 || !w.fill_opa)return;
  auto *layer=lv_event_get_layer(e);lv_area_t area;lv_obj_get_coords(w.extra,&area);
  lv_draw_triangle_dsc_t dsc;lv_draw_triangle_dsc_init(&dsc);dsc.color=w.fill_color;dsc.opa=w.fill_opa;
  const lv_value_precise_t ox=area.x1+w.fill_x, oy=area.y1+w.fill_y, base=oy+w.fill_base;
  for(unsigned i=0;i+1<w.fill_count;++i){
    const auto &a=w.fill_points[i],&b=w.fill_points[i+1];
    dsc.p[0]={ox+a.x,oy+a.y};dsc.p[1]={ox+b.x,oy+b.y};dsc.p[2]={ox+b.x,base};lv_draw_triangle(layer,&dsc);
    dsc.p[1]=dsc.p[2];dsc.p[2]={ox+a.x,base};lv_draw_triangle(layer,&dsc);
  }
}
inline void begin_extra(Widgets &w,const char *mode,int width,int height) {
  if(!w.extra){
    w.extra=lv_obj_create(w.tile);lv_obj_remove_style_all(w.extra);lv_obj_remove_flag(w.extra,LV_OBJ_FLAG_CLICKABLE);lv_obj_remove_flag(w.extra,LV_OBJ_FLAG_SCROLLABLE);
    lv_obj_add_event_cb(w.extra,extra_draw,LV_EVENT_DRAW_MAIN,&w);
  }
  if(w.extra_mode!=mode){end_extra(w);w.extra_mode=mode;w.points=new lv_point_precise_t[POINT_BUFFER];w.cached_active=-1;}
  w.fill_points=nullptr;w.fill_count=0;
  // Parts that were hidden kept the colours of the card they last showed.
  if(lv_obj_has_flag(w.extra,LV_OBJ_FLAG_HIDDEN)){w.cached_active=-1;lv_obj_remove_flag(w.extra,LV_OBJ_FLAG_HIDDEN);}
  lv_obj_set_pos(w.extra,0,0);lv_obj_set_size(w.extra,width,height);
}
// Catmull-Rom curve through the samples: the trend reads smoothly without extra data.
inline unsigned smooth(const lv_point_precise_t *in,unsigned n,lv_point_precise_t *out,unsigned capacity,int width,int height) {
  if(n<2 || capacity<2){for(unsigned i=0;i<n && i<capacity;++i)out[i]=in[i];return n<capacity?n:capacity;}
  const unsigned steps=4;unsigned count=0;
  for(unsigned i=0;i+1<n;++i){
    const auto &p0=in[i?i-1:0],&p1=in[i],&p2=in[i+1],&p3=in[i+2<n?i+2:n-1];
    for(unsigned s=0;s<steps && count<capacity-1;++s){
      float t=float(s)/steps,t2=t*t,t3=t2*t;
      float x=0.5f*(2*p1.x+(-p0.x+p2.x)*t+(2*p0.x-5*p1.x+4*p2.x-p3.x)*t2+(-p0.x+3*p1.x-3*p2.x+p3.x)*t3);
      float y=0.5f*(2*p1.y+(-p0.y+p2.y)*t+(2*p0.y-5*p1.y+4*p2.y-p3.y)*t2+(-p0.y+3*p1.y-3*p2.y+p3.y)*t3);
      out[count++]={(lv_value_precise_t)std::clamp(x,0.0f,float(width-1)),(lv_value_precise_t)std::clamp(y,0.0f,float(height-1))};
    }
  }
  out[count++]=in[n-1];return count;
}
inline lv_obj_t *part_label(Widgets &w,unsigned i,const lv_font_t *font,int x,int y,int width,lv_text_align_t align,const std::string &text) {
  auto *&p=w.parts[i];
  if(!p){p=lv_label_create(w.extra);lv_label_set_long_mode(p,LV_LABEL_LONG_CLIP);lv_obj_remove_flag(p,LV_OBJ_FLAG_CLICKABLE);}
  set_font(p,font);set_text_align(p,align);
  lv_obj_set_pos(p,x,y);lv_obj_set_size(p,std::max(1,width),lv_font_get_line_height(font));label(p,text);return p;
}
inline lv_obj_t *part_dot(Widgets &w,unsigned i,int x,int y,int size) {
  auto *&p=w.parts[i];
  if(!p){p=lv_obj_create(w.extra);lv_obj_remove_style_all(p);lv_obj_set_style_bg_opa(p,LV_OPA_COVER,0);lv_obj_set_style_radius(p,LV_RADIUS_CIRCLE,0);lv_obj_remove_flag(p,LV_OBJ_FLAG_CLICKABLE);lv_obj_remove_flag(p,LV_OBJ_FLAG_SCROLLABLE);}
  lv_obj_set_pos(p,x,y);lv_obj_set_size(p,size,size);return p;
}
// Points are relative to (x,y): the line object then covers only its own rectangle.
inline lv_obj_t *part_line(Widgets &w,unsigned i,lv_point_precise_t *points,unsigned count,int width,int x=0,int y=0) {
  auto *&p=w.parts[i];
  if(!p){p=lv_line_create(w.extra);lv_obj_remove_flag(p,LV_OBJ_FLAG_CLICKABLE);lv_obj_set_style_line_rounded(p,true,0);}
  set_line_width(p,width);lv_line_set_points(p,points,count);lv_obj_set_pos(p,x,y);return p;
}
inline std::string time_text(esphome::ESPTime now) {
  return now.is_valid() ? now.strftime(screen_settings::current.clock_24h ? "%H:%M" : "%I:%M") : "--:--";
}
// Digital: big time over the date. Analog: index strokes (numerals at 12/3/6/9 on
// large cards) with hour and minute hands. A single card adds a calendar block
// beside the dial (weekday, big day number, short month); a wide card adds the
// digital time and the date instead. Parts: 0-11 marks, 12-13 hands, 14 centre,
// 15-17 text, 18 the second hand (points 28-29), shown while the screen is awake.
inline void second_hand(Widgets &w,const esphome::ESPTime &now) {
  float a=(now.is_valid()?now.second:0)*3.14159265f/30;
  w.points[28]={(lv_value_precise_t)(w.hand_cx-w.hand_r*0.2f*sinf(a)),(lv_value_precise_t)(w.hand_cy+w.hand_r*0.2f*cosf(a))};
  w.points[29]={(lv_value_precise_t)(w.hand_cx+w.hand_r*0.92f*sinf(a)),(lv_value_precise_t)(w.hand_cy-w.hand_r*0.92f*cosf(a))};
  auto *p=part_line(w,18,w.points+28,2,w.hand_width);
  set_hidden(p,!(awake() && now.is_valid()));
}
inline void render_clock(Widgets &w,const Tile &t,bool large,int width,int height) {
  bool analog=t.display=="analog";
  begin_extra(w,analog?(w.wide?"analog":"calendar"):"digital",width,height);
  auto now=now_time?now_time():esphome::ESPTime{};
  const lv_font_t *big=clock_font?clock_font:watch_value_font?watch_value_font:w.value_font;
  const lv_font_t *small=lv_obj_get_style_text_font(w.title,LV_PART_MAIN);
  // The date line only appears when both lines fit the card height.
  bool with_date=lv_font_get_line_height(big)+2+lv_font_get_line_height(small)<=height;
  int text_h=lv_font_get_line_height(big)+(with_date?2+lv_font_get_line_height(small):0);
  if(!analog){
    int y=std::max(0,(height-text_h)/2);
    part_label(w,15,big,0,y,width,LV_TEXT_ALIGN_CENTER,time_text(now));
    part_label(w,16,small,0,with_date?y+lv_font_get_line_height(big)+2:y,width,LV_TEXT_ALIGN_CENTER,with_date?date_text(now):"");
    return;
  }
  // The dial keeps the same size with or without a card behind it.
  int dial=std::min(height,width),cx=dial/2,cy=height/2,outer=dial/2-1,radius=dial/2-(large?4:2);
  for(int i=0;i<12;++i){
    float a=i*3.14159265f/6;bool cardinal=i%3==0;
    if(cardinal && large){
      // Numerals replace the four cardinal strokes; the box is one line high and wide.
      int box=lv_font_get_line_height(w.value_font)+4,ring=outer-11;
      part_label(w,i,w.value_font,cx+std::lround(ring*sinf(a))-box/2,cy-std::lround(ring*cosf(a))-box/2,box,LV_TEXT_ALIGN_CENTER,i==0?"12":std::to_string(i));
      continue;
    }
    int length=cardinal?(large?9:5):(large?5:3);
    auto *p=w.points+4+2*i;
    p[0]={(lv_value_precise_t)(cx+outer*sinf(a)),(lv_value_precise_t)(cy-outer*cosf(a))};
    p[1]={(lv_value_precise_t)(cx+(outer-length)*sinf(a)),(lv_value_precise_t)(cy-(outer-length)*cosf(a))};
    part_line(w,i,p,2,cardinal?(large?3:2):(large?2:1));
  }
  float hour=((now.is_valid()?now.hour%12:0)+(now.is_valid()?now.minute:0)/60.0f)*3.14159265f/6, minute=(now.is_valid()?now.minute:0)*3.14159265f/30;
  w.points[0]={(lv_value_precise_t)cx,(lv_value_precise_t)cy};w.points[1]={(lv_value_precise_t)(cx+radius*0.52f*sinf(hour)),(lv_value_precise_t)(cy-radius*0.52f*cosf(hour))};
  w.points[2]={(lv_value_precise_t)cx,(lv_value_precise_t)cy};w.points[3]={(lv_value_precise_t)(cx+radius*0.82f*sinf(minute)),(lv_value_precise_t)(cy-radius*0.82f*cosf(minute))};
  part_line(w,12,w.points,2,large?5:3);part_line(w,13,w.points+2,2,large?3:2);
  int center=large?8:4;part_dot(w,14,cx-center/2,cy-center/2,center);
  // A thin red second hand with a short tail, under the centre dot; tick() moves it every second.
  w.hand_cx=cx;w.hand_cy=cy;w.hand_r=radius;w.hand_width=large?2:1;
  bool new_hand=!w.parts[18];
  second_hand(w,now);
  if(new_hand)lv_obj_move_to_index(w.parts[18],lv_obj_get_index(w.parts[14]));
  std::string day=now.is_valid()?std::to_string(now.day_of_month):"--";
  if(w.wide){
    int x=dial+(large?16:8),y=std::max(0,(height-text_h)/2);
    part_label(w,15,big,x,y,width-x,LV_TEXT_ALIGN_CENTER,time_text(now));
    part_label(w,16,small,x,with_date?y+lv_font_get_line_height(big)+2:y,width-x,LV_TEXT_ALIGN_CENTER,with_date?date_text(now):"");
    return;
  }
  int x=dial+(large?10:6),room=std::max(1,width-x);
  if(!large){
    // Compact cards: "13 sep" in the large-value font beside the dial.
    const lv_font_t *font=watch_value_font?watch_value_font:w.value_font;
    part_label(w,16,font,x,std::max(0,int(height-lv_font_get_line_height(font))/2),room,LV_TEXT_ALIGN_CENTER,day+" "+month_short(now));
    return;
  }
  // Calendar block: weekday over a big day number with the short month beside it.
  int top=std::max(0,int(height-lv_font_get_line_height(w.value_font)-lv_font_get_line_height(big))/2);
  part_label(w,15,w.value_font,x,top,room,LV_TEXT_ALIGN_CENTER,weekday_text(now));
  std::string month=month_short(now);
  lv_point_t day_size,month_size;
  lv_text_get_size(&day_size,day.c_str(),big,0,0,LV_COORD_MAX,LV_TEXT_FLAG_EXPAND);
  lv_text_get_size(&month_size,month.c_str(),small,0,0,LV_COORD_MAX,LV_TEXT_FLAG_EXPAND);
  int gap=6,sx=x+std::max(0,int(room-(day_size.x+gap+month_size.x))/2),day_y=top+int(lv_font_get_line_height(w.value_font));
  part_label(w,16,big,sx,day_y,std::min(room,(int)day_size.x+2),LV_TEXT_ALIGN_LEFT,day);
  // Both baselines line up: LVGL measures base_line from the bottom of the line box.
  int month_y=day_y+(big->line_height-big->base_line)-(small->line_height-small->base_line);
  part_label(w,17,small,sx+day_size.x+gap,std::max(0,month_y),std::max(1,int(x+room-(sx+day_size.x+gap))),LV_TEXT_ALIGN_LEFT,month);
}
// Current conditions on the left, five day columns on the right (wide cards only).
inline void render_forecast(Widgets &w,const Tile &t,bool large,int width,int height) {
  begin_extra(w,"forecast",width,height);
  const lv_font_t *title_font=lv_obj_get_style_text_font(w.title,LV_PART_MAIN);
  const lv_font_t *temp_font=watch_value_font?watch_value_font:w.value_font,*day_icon=mini_icon_font?mini_icon_font:w.icon_font;
  int left=large?150:96,icon_h=lv_font_get_line_height(w.icon_font),temp_h=lv_font_get_line_height(temp_font),text_h=lv_font_get_line_height(w.value_font);
  int block=std::max(icon_h,temp_h)+2+text_h,y=std::max(0,(height-block)/2);
  char b[24];snprintf(b,sizeof(b),"%.0f°",t.current);
  auto *icon=part_label(w,0,w.icon_font,0,y+(std::max(icon_h,temp_h)-icon_h)/2,icon_h+4,LV_TEXT_ALIGN_LEFT,t.available()?weather_icon(t.state):"\U000F0595");
  lv_obj_set_width(icon,lv_font_get_line_height(w.icon_font)+4);
  part_label(w,1,temp_font,icon_h+6,y+(std::max(icon_h,temp_h)-temp_h)/2,left-icon_h-6,LV_TEXT_ALIGN_LEFT,std::isfinite(t.current)?b:"");
  part_label(w,2,w.value_font,0,y+std::max(icon_h,temp_h)+2,left-4,LV_TEXT_ALIGN_LEFT,weather_text(t.state));
  int column=(width-left)/5,day_h=lv_font_get_line_height(title_font),icon_col=lv_font_get_line_height(day_icon);
  for(unsigned k=0;k<5;++k){
    static const Forecast no_day;int x=left+k*column;bool has=k<t.extra().forecast.size();const auto &f=has?t.extra().forecast[k]:no_day;
    char temps[24];if(has && std::isfinite(f.high))snprintf(temps,sizeof(temps),std::isfinite(f.low)?"%.0f/%.0f":"%.0f",f.high,f.low);else temps[0]=0;
    if(large){
      int rows=day_h+icon_col+text_h,top=std::max(0,(height-rows)/2);
      part_label(w,3+k*3,title_font,x,top,column,LV_TEXT_ALIGN_CENTER,has?f.day:"");
      part_label(w,4+k*3,day_icon,x,top+day_h,column,LV_TEXT_ALIGN_CENTER,has?weather_icon(f.condition):"");
      part_label(w,5+k*3,w.value_font,x,top+day_h+icon_col,column,LV_TEXT_ALIGN_CENTER,temps);
    }else{
      // Two rows on the CYD: day beside its icon, then the high/low pair.
      int rows=std::max(day_h,icon_col)+text_h,top=std::max(0,(height-rows)/2),day_w=column-icon_col-2;
      part_label(w,3+k*3,title_font,x,top+(std::max(day_h,icon_col)-day_h)/2,day_w,LV_TEXT_ALIGN_RIGHT,has?f.day:"");
      part_label(w,4+k*3,day_icon,x+day_w+2,top,icon_col,LV_TEXT_ALIGN_LEFT,has?weather_icon(f.condition):"");
      part_label(w,5+k*3,w.value_font,x,top+std::max(day_h,icon_col),column,LV_TEXT_ALIGN_CENTER,temps);
    }
  }
}
// Smoothed trend of the manager's 24 history samples with a soft fill beneath.
inline void render_graph(Widgets &w,const Tile &t,bool large,int x,int y,int width,int height) {
  begin_extra(w,"graph",x+width,y+height);
  float minimum=INFINITY,maximum=-INFINITY;for(float v:t.history)if(std::isfinite(v)){minimum=std::min(minimum,v);maximum=std::max(maximum,v);}
  lv_point_precise_t raw[24];unsigned n=0;int stroke=large?3:2,top=stroke;
  for(unsigned i=0;i<t.history.size() && i<24;++i){
    if(!std::isfinite(t.history[i]))continue;
    float level=maximum>minimum?(t.history[i]-minimum)/(maximum-minimum):0.5f;
    raw[n++]={(lv_value_precise_t)(stroke/2+i*(width-stroke-1)/23),(lv_value_precise_t)(height-stroke/2-1-level*(height-stroke-1-top))};
  }
  if(n==1){raw[1]=raw[0];raw[1].x=(lv_value_precise_t)(width-1);n=2;}
  unsigned count=smooth(raw,n,w.points,POINT_BUFFER,width,height);
  part_line(w,0,w.points,count,stroke,x,y);
  w.fill_points=w.points;w.fill_count=count;w.fill_x=x;w.fill_y=y;w.fill_base=height;w.fill_opa=LV_OPA_20;
}
// Sun path: horizon, an arc from sunrise to sunset and the sun at the current
// position (or below the horizon at night). Wide cards only.
inline int minutes_of(const std::string &clock) {
  unsigned h=0,m=0;return sscanf(clock.c_str(),"%u:%u",&h,&m)==2 && h<24 && m<60 ? int(h*60+m) : -1;
}
inline void render_sunpath(Widgets &w,const Tile &t,bool large,int width,int height) {
  begin_extra(w,"sunpath",width,height);
  const lv_font_t *title_font=lv_obj_get_style_text_font(w.title,LV_PART_MAIN);
  int title_h=lv_font_get_line_height(title_font),text_h=lv_font_get_line_height(w.value_font);
  int horizon=height-text_h-(large?4:2),top=title_h+(large?4:2),x0=large?14:8,x1=width-x0;
  part_label(w,0,title_font,0,0,width,LV_TEXT_ALIGN_LEFT,t.name.empty()?"Sun":t.name);
  part_label(w,1,w.value_font,0,horizon+(large?3:1),width/2,LV_TEXT_ALIGN_LEFT,"rise "+t.extra().sunrise);
  part_label(w,2,w.value_font,width/2,horizon+(large?3:1),width/2,LV_TEXT_ALIGN_RIGHT,"set "+t.extra().sunset);
  auto now=now_time?now_time():esphome::ESPTime{};
  int rise=minutes_of(t.extra().sunrise),set=minutes_of(t.extra().sunset),minute=now.is_valid()?now.hour*60+now.minute:-1;
  bool day=t.state=="above_horizon";float fraction=0.5f;
  if(rise>=0 && set>=0 && minute>=0){
    if(day){int span=(set-rise+1440)%1440;if(!span)span=1;fraction=std::clamp(float((minute-rise+1440)%1440)/span,0.0f,1.0f);}
    else{int span=(rise-set+1440)%1440;if(!span)span=1;fraction=std::clamp(float((minute-set+1440)%1440)/span,0.0f,1.0f);}
  }
  const unsigned segments=40;float amplitude=day?float(horizon-top):float(height-text_h-horizon-(large?2:1));
  auto *arc=w.points,*travelled=w.points+segments+1,*line=w.points+2*segments+3;
  for(unsigned i=0;i<=segments;++i){
    float a=3.14159265f*i/segments;
    arc[i]={(lv_value_precise_t)(x0+(x1-x0)*float(i)/segments),(lv_value_precise_t)(day?horizon-sinf(a)*amplitude:horizon+sinf(a)*amplitude)};
  }
  unsigned filled=std::min(segments,unsigned(fraction*segments));
  for(unsigned i=0;i<=filled;++i)travelled[i]=arc[i];
  float sa=3.14159265f*fraction;
  lv_point_precise_t sun={(lv_value_precise_t)(x0+(x1-x0)*fraction),(lv_value_precise_t)(day?horizon-sinf(sa)*amplitude:horizon+sinf(sa)*amplitude)};
  travelled[filled+1]=sun;
  line[0]={(lv_value_precise_t)0,(lv_value_precise_t)horizon};line[1]={(lv_value_precise_t)(width-1),(lv_value_precise_t)horizon};
  uint32_t path=0xCFD8DC, accent=day?0xFF9800:0x5C6BC0, disc=day?0xFFB300:0xB0BEC5;
  lv_obj_set_style_line_color(part_line(w,3,line,2,2),lv_color_hex(path),0);
  lv_obj_set_style_line_color(part_line(w,4,arc,segments+1,large?2:1),lv_color_hex(path),0);
  lv_obj_set_style_line_color(part_line(w,5,travelled,filled+2,large?4:3),lv_color_hex(accent),0);
  int size=large?18:10,glow=size+(large?12:6);
  auto *halo=part_dot(w,6,int(sun.x)-glow/2,int(sun.y)-glow/2,glow);lv_obj_set_style_bg_color(halo,lv_color_hex(disc),0);lv_obj_set_style_bg_opa(halo,LV_OPA_30,0);
  lv_obj_set_style_bg_color(part_dot(w,7,int(sun.x)-size/2,int(sun.y)-size/2,size),lv_color_hex(disc),0);
  if(day){w.fill_points=travelled;w.fill_count=filled+2;w.fill_x=0;w.fill_y=0;w.fill_base=horizon;w.fill_color=lv_color_hex(0xFFB300);w.fill_opa=LV_OPA_20;}
}

// ---- Direct controls on wide cards (Home Assistant entity-row style) ----
struct PanelMetrics { int key_w, key_h, radius, gap, pill_w, pill_key, slider_w, slider_h, toggle_w, toggle_h, run_pad, text_gap, ext; };
inline PanelMetrics panel_metrics(bool large) {
  return large ? PanelMetrics{60,46,14,8,196,52,140,44,76,40,22,8,4} : PanelMetrics{40,34,9,4,128,36,90,30,48,26,14,6,6};
}
inline lv_obj_t *panel_obj(lv_obj_t *parent,bool clickable) {
  auto *o=lv_obj_create(parent);lv_obj_remove_style_all(o);lv_obj_remove_flag(o,LV_OBJ_FLAG_SCROLLABLE);
  if(clickable)lv_obj_add_flag(o,LV_OBJ_FLAG_CLICKABLE);else lv_obj_remove_flag(o,LV_OBJ_FLAG_CLICKABLE);
  return o;
}
// Like the custom parts: a card without controls hides the slot's panel and a later card with
// the same control set shows it again.
inline void hide_panel(Widgets &w) {
  if(!w.panel)return;
  if(!lv_obj_has_flag(w.panel,LV_OBJ_FLAG_HIDDEN))lv_obj_add_flag(w.panel,LV_OBJ_FLAG_HIDDEN);
  w.panel_w=0;
  if(captured_slider && captured_slider==w.control_slider)captured_slider=nullptr;
}
inline void end_panel(Widgets &w) {
  if(!w.panel)return;
  hide_panel(w);
  if(!w.panel_mode.empty()){
    lv_obj_clean(w.panel);w.keys.fill(nullptr);w.key_icons.fill(nullptr);w.key_checked.fill(-1);
    w.pill=w.pill_value=w.knob=w.control_slider=nullptr;w.knob_on=-1;w.panel_mode.clear();
  }
}
inline void control_event(lv_event_t *e);
// A pill key: rounded, pressed darker, checked in the accent, disabled faded.
inline lv_obj_t *panel_key(Widgets &w,unsigned n,lv_obj_t *parent,const PanelMetrics &m,int width,int height,bool transparent) {
  auto *key=panel_obj(parent,true);lv_obj_set_size(key,width,height);
  lv_obj_set_style_radius(key,transparent?LV_RADIUS_CIRCLE:m.radius,0);
  lv_obj_set_style_bg_opa(key,transparent?LV_OPA_TRANSP:LV_OPA_COVER,0);
  lv_obj_set_style_bg_opa(key,LV_OPA_COVER,LV_STATE_PRESSED);
  lv_obj_set_style_bg_opa(key,LV_OPA_COVER,LV_STATE_CHECKED);
  lv_obj_set_style_opa(key,LV_OPA_40,LV_STATE_DISABLED);
  lv_obj_set_ext_click_area(key,m.ext);
  size_t slot=&w-widgets.data();
  lv_obj_add_event_cb(key,control_event,LV_EVENT_SHORT_CLICKED,(void*)(uintptr_t)(slot*16+n));
  w.keys[n]=key;w.key_checked[n]=-1;
  return key;
}
inline lv_obj_t *panel_icon(Widgets &w,unsigned n,const lv_font_t *font) {
  auto *icon=lv_label_create(w.keys[n]);lv_obj_remove_flag(icon,LV_OBJ_FLAG_CLICKABLE);
  lv_obj_set_style_text_font(icon,font,0);lv_obj_center(icon);w.key_icons[n]=icon;return icon;
}
// Build (once per control set) and lay out the panel; returns the width it takes
// from the text, including the gap, or 0 when the card shows no panel.
inline int layout_panel(Widgets &w,const Tile &t,bool large,int content_w,int content_h) {
  std::string mode=tile_controls::panel_kind(t);
  const PanelMetrics m=panel_metrics(large);
  const lv_font_t *icon_font=mini_icon_font?mini_icon_font:w.icon_font;
  const lv_font_t *text_font=control_font?control_font:lv_obj_get_style_text_font(w.title,LV_PART_MAIN);
  auto d=t.domain();
  if(!w.panel){w.panel=panel_obj(w.tile,false);}
  if(w.panel_mode!=mode){
    end_panel(w);w.panel_mode=mode;w.panel_dirty=true;
    if(tile_controls::is_key_row(mode)){
      for(unsigned n=0;n<3;++n){panel_key(w,n,w.panel,m,m.key_w,m.key_h,false);panel_icon(w,n,icon_font);}
    }else if(mode=="setpoint"||mode=="stepper"){
      w.pill=panel_obj(w.panel,false);lv_obj_set_size(w.pill,m.pill_w,m.key_h+2);
      lv_obj_set_style_radius(w.pill,LV_RADIUS_CIRCLE,0);lv_obj_set_style_bg_opa(w.pill,LV_OPA_COVER,0);
      panel_key(w,0,w.pill,m,m.pill_key,m.key_h+2,true);panel_icon(w,0,icon_font);lv_label_set_text(w.key_icons[0],tile_controls::glyph::MINUS);
      panel_key(w,1,w.pill,m,m.pill_key,m.key_h+2,true);panel_icon(w,1,icon_font);lv_label_set_text(w.key_icons[1],tile_controls::glyph::PLUS);
      // Holding -/+ keeps stepping (LVGL repeats while pressed); one call goes out after the finger rests.
      for(unsigned n=0;n<2;++n)lv_obj_add_event_cb(w.keys[n],control_event,LV_EVENT_LONG_PRESSED_REPEAT,(void*)(uintptr_t)((&w-widgets.data())*16+n));
      lv_obj_set_pos(w.keys[0],0,0);lv_obj_set_pos(w.keys[1],m.pill_w-m.pill_key,0);
      w.pill_value=lv_label_create(w.pill);lv_obj_remove_flag(w.pill_value,LV_OBJ_FLAG_CLICKABLE);
      lv_obj_set_style_text_font(w.pill_value,text_font,0);lv_obj_set_style_text_align(w.pill_value,LV_TEXT_ALIGN_CENTER,0);
      lv_label_set_long_mode(w.pill_value,LV_LABEL_LONG_CLIP);
      lv_obj_set_size(w.pill_value,m.pill_w-2*m.pill_key,lv_font_get_line_height(text_font));
      lv_obj_set_pos(w.pill_value,m.pill_key,(m.key_h+2-lv_font_get_line_height(text_font))/2);
      w.key_commands[0]=tile_controls::STEP_DOWN;w.key_commands[1]=tile_controls::STEP_UP;
    }else if(tile_controls::is_slider(mode)){
      int h=mode=="volume"?m.slider_h:m.slider_h;
      auto *slider=lv_slider_create(w.panel);w.control_slider=slider;
      lv_obj_remove_flag(slider,LV_OBJ_FLAG_GESTURE_BUBBLE);lv_obj_remove_flag(slider,LV_OBJ_FLAG_SCROLLABLE);
      lv_obj_set_size(slider,mode=="volume"?m.slider_w:m.pill_w,h);
      lv_obj_set_style_pad_all(slider,0,LV_PART_MAIN);
      lv_obj_set_style_bg_opa(slider,LV_OPA_COVER,LV_PART_MAIN);lv_obj_set_style_bg_opa(slider,LV_OPA_COVER,LV_PART_INDICATOR);
      // The handle is a short white bar inside the fill, like Home Assistant's slider.
      lv_obj_set_style_radius(slider,2,LV_PART_KNOB);lv_obj_set_style_bg_color(slider,lv_color_hex(0xFFFFFF),LV_PART_KNOB);lv_obj_set_style_bg_opa(slider,LV_OPA_COVER,LV_PART_KNOB);
      slider_handle(slider,mode=="volume"?m.slider_w:m.pill_w,h);
      lv_obj_set_style_border_width(slider,0,LV_PART_KNOB);lv_obj_set_style_shadow_width(slider,0,LV_PART_KNOB);
      lv_obj_set_ext_click_area(slider,m.ext+2);
      lv_obj_add_event_cb(slider,slider_event,LV_EVENT_ALL,(void*)(uintptr_t)w.index);
      if(mode=="volume"){panel_key(w,0,w.panel,m,m.key_h,m.key_h,false);panel_icon(w,0,icon_font);w.key_commands[0]=tile_controls::MEDIA_MUTE;}
    }else if(mode=="toggle"){
      panel_key(w,0,w.panel,m,m.toggle_w,m.toggle_h,false);lv_obj_set_style_radius(w.keys[0],LV_RADIUS_CIRCLE,0);
      w.knob=panel_obj(w.keys[0],false);lv_obj_set_size(w.knob,m.toggle_h-8,m.toggle_h-8);lv_obj_set_y(w.knob,4);
      lv_obj_set_style_radius(w.knob,LV_RADIUS_CIRCLE,0);lv_obj_set_style_bg_opa(w.knob,LV_OPA_COVER,0);lv_obj_set_style_bg_color(w.knob,lv_color_hex(0xFFFFFF),0);
      w.key_commands[0]=tile_controls::TOGGLE;
    }else if(mode=="run"){
      const char *text=tile_controls::run_label(d);
      lv_point_t size;lv_text_get_size(&size,text,text_font,0,0,LV_COORD_MAX,LV_TEXT_FLAG_EXPAND);
      panel_key(w,0,w.panel,m,std::max(m.key_w*3/2,(int)size.x+2*m.run_pad),m.key_h,false);lv_obj_set_style_radius(w.keys[0],LV_RADIUS_CIRCLE,0);
      panel_icon(w,0,text_font);lv_label_set_text(w.key_icons[0],text);
      w.key_commands[0]=tile_controls::RUN;
    }else{end_panel(w);return 0;}
  }
  // Per-render contents: which keys, their icons and states; then the panel size and place.
  int panel_w=0,panel_h=m.key_h;uint32_t now=esphome::millis();
  auto set_checked=[&](unsigned n,bool checked){
    if(w.key_checked[n]==(int)checked)return;w.key_checked[n]=checked;
    if(checked)lv_obj_add_state(w.keys[n],LV_STATE_CHECKED);else lv_obj_remove_state(w.keys[n],LV_STATE_CHECKED);
    if(w.key_icons[n])lv_obj_set_style_text_color(w.key_icons[n],checked?lv_color_hex(0xFFFFFF):w.panel_text,0);
  };
  auto set_disabled=[&](unsigned n,bool disabled){if(disabled)lv_obj_add_state(w.keys[n],LV_STATE_DISABLED);else lv_obj_remove_state(w.keys[n],LV_STATE_DISABLED);};
  if(tile_controls::is_key_row(mode)){
    std::array<tile_controls::Key,3> keys;unsigned count=tile_controls::keys_for(t,keys);
    for(unsigned n=0;n<3;++n){
      if(n>=count){lv_obj_add_flag(w.keys[n],LV_OBJ_FLAG_HIDDEN);w.key_commands[n]=tile_controls::NONE;continue;}
      lv_obj_remove_flag(w.keys[n],LV_OBJ_FLAG_HIDDEN);lv_obj_set_pos(w.keys[n],n*(m.key_w+m.gap),0);
      label(w.key_icons[n],keys[n].icon);w.key_commands[n]=keys[n].command;w.key_args[n]=keys[n].arg;
      // The active mode key carries the accent; "off" stays neutral grey.
      if(keys[n].checked && w.key_checked[n]!=1)lv_obj_set_style_bg_color(w.keys[n],keys[n].arg=="off"?lv_color_hex(0x9E9E9E):w.panel_accent,LV_STATE_CHECKED);
      set_checked(n,keys[n].checked);set_disabled(n,keys[n].disabled);
    }
    panel_w=count?count*m.key_w+(count-1)*m.gap:0;
  }else if(mode=="setpoint"||mode=="stepper"){
    float shown=std::isfinite(t.edit_value)?t.edit_value:tile_controls::edit_target(t);
    std::string suffix=d=="climate"?"°":t.unit.empty()?"":" "+t.unit;
    label(w.pill_value,tile_controls::format_value(shown,tile_controls::edit_step(t),suffix.c_str()));
    panel_w=m.pill_w;panel_h=m.key_h+2;
  }else if(tile_controls::is_slider(mode)){
    bool has_slider=mode!="volume" || (t.supported & tile_controls::feature::MEDIA_VOLUME_SET);
    if(has_slider){
      lv_obj_remove_flag(w.control_slider,LV_OBJ_FLAG_HIDDEN);lv_obj_set_pos(w.control_slider,0,(panel_h-m.slider_h)/2);
      // Keep the dragged value while the command is under way; HA's report takes over afterwards.
      if(!lv_obj_has_state(w.control_slider,LV_STATE_PRESSED) && !(t.pending && !t.confirmed))lv_slider_set_value(w.control_slider,slider_value(t),LV_ANIM_OFF);
      panel_w=mode=="volume"?m.slider_w:m.pill_w;
    }else lv_obj_add_flag(w.control_slider,LV_OBJ_FLAG_HIDDEN);
    if(mode=="volume"){
      bool has_mute=t.supported & tile_controls::feature::MEDIA_VOLUME_MUTE;
      if(has_mute){
        lv_obj_remove_flag(w.keys[0],LV_OBJ_FLAG_HIDDEN);lv_obj_set_pos(w.keys[0],panel_w?panel_w+m.gap:0,0);
        label(w.key_icons[0],t.muted?tile_controls::glyph::MUTED:tile_controls::glyph::VOLUME);
        if(t.muted && w.key_checked[0]!=1)lv_obj_set_style_bg_color(w.keys[0],w.panel_accent,LV_STATE_CHECKED);
        set_checked(0,t.muted);panel_w+=(panel_w?m.gap:0)+m.key_h;
      }else lv_obj_add_flag(w.keys[0],LV_OBJ_FLAG_HIDDEN);
    }
  }else if(mode=="toggle"){
    bool on=t.pending && !t.confirmed ? t.optimistic_on : t.state=="on";
    if(on && w.key_checked[0]!=1)lv_obj_set_style_bg_color(w.keys[0],w.panel_accent,LV_STATE_CHECKED);
    set_checked(0,on);
    if(w.knob_on!=(int)on){w.knob_on=on;lv_obj_set_x(w.knob,on?m.toggle_w-(m.toggle_h-8)-4:4);}
    panel_w=m.toggle_w;panel_h=m.toggle_h;
  }else if(mode=="run"){
    // The requested width: a key created in this pass has no coordinates before LVGL's layout.
    panel_w=lv_obj_get_style_width(w.keys[0],LV_PART_MAIN);
  }
  (void)now;
  if(!panel_w){hide_panel(w);return 0;}
  // A panel shown again kept the colours of the card it last served.
  if(lv_obj_has_flag(w.panel,LV_OBJ_FLAG_HIDDEN)){lv_obj_remove_flag(w.panel,LV_OBJ_FLAG_HIDDEN);w.panel_dirty=true;}
  lv_obj_set_size(w.panel,panel_w,panel_h);lv_obj_set_pos(w.panel,content_w-panel_w,std::max(0,(content_h-panel_h)/2));
  w.panel_w=panel_w+m.text_gap;
  return w.panel_w;
}
// Colours follow the card palette; called with the rest of the palette when it changes.
inline void style_panel(Widgets &w,const Tile &t,lv_color_t accent,lv_color_t text) {
  if(!w.panel || w.panel_mode.empty())return;
  lv_color_t card=lv_color_hex(t.background?t.background:0xFFFFFF);
  lv_color_t key_bg=lv_color_mix(card,lv_color_hex(0x000000),236);
  lv_color_t key_pressed=lv_color_mix(card,lv_color_hex(0x000000),212);
  w.panel_accent=accent;w.panel_text=text;
  for(unsigned n=0;n<3;++n){
    auto *key=w.keys[n];if(!key)continue;
    bool in_pill=w.pill && lv_obj_get_parent(key)==w.pill;
    set_color(key,LV_STYLE_BG_COLOR,in_pill?key_pressed:key_bg);
    set_color(key,LV_STYLE_BG_COLOR,in_pill?lv_color_mix(card,lv_color_hex(0x000000),190):key_pressed,LV_STATE_PRESSED);
    set_color(key,LV_STYLE_BG_COLOR,w.key_args[n]=="off" && w.panel_mode=="mode"?lv_color_hex(0x9E9E9E):accent,LV_STATE_CHECKED);
    if(w.key_icons[n])set_color(w.key_icons[n],LV_STYLE_TEXT_COLOR,w.key_checked[n]==1?lv_color_hex(0xFFFFFF):text);
  }
  if(w.pill){set_color(w.pill,LV_STYLE_BG_COLOR,key_bg);set_color(w.pill_value,LV_STYLE_TEXT_COLOR,text);}
  if(w.control_slider){
    bool on=fresh() && t.active();
    lv_color_t fill=on?accent:lv_color_hex(0x9E9E9E);
    // The track is the fill colour at 20 % over the card, as in Home Assistant.
    set_color(w.control_slider,LV_STYLE_BG_COLOR,lv_color_mix(fill,card,51),LV_PART_MAIN);
    set_color(w.control_slider,LV_STYLE_BG_COLOR,fill,LV_PART_INDICATOR);
    slider_bar(w.control_slider,slider_bar_shown(t,on));
  }
  if(w.knob){set_color(w.keys[0],LV_STYLE_BG_COLOR,lv_color_hex(0xD7DADF));set_color(w.keys[0],LV_STYLE_BG_COLOR,lv_color_hex(0xC5C9CF),LV_STATE_PRESSED);}
}
inline void control_event(lv_event_t *e) {
  unsigned code=(uintptr_t)lv_event_get_user_data(e);unsigned slot=code/16,n=code%16;
  if(slot>=widgets.size() || n>=3)return;
  auto &w=widgets[slot];
  if(!enabled || !fresh() || w.index>=model.count || !w.keys[n])return;
  if(lv_obj_has_state(w.keys[n],LV_STATE_DISABLED))return;
  uint32_t now=esphome::millis();
  auto &t=model.tiles[w.index];
  int command=w.key_commands[n];
  bool step=command==tile_controls::STEP_DOWN || command==tile_controls::STEP_UP;
  bool held=lv_event_get_code(e)==LV_EVENT_LONG_PRESSED_REPEAT;
  if(held){ if(!step || now-t.edit_since<300)return; }  // three steps a second while holding
  else if(step){ if(!cyd::touch_guard.accept_repeat(now,400+slot*16+n)){ESP_LOGI("touch","tap on control %u ignored: %s",(unsigned)slot,cyd::touch_guard.reason().c_str());return;} }
  else if(!allowed(now,400+slot*16+n,"control "+std::to_string(slot)))return;
  if(!t.available())return;
  if(step){
    // Local at once, tap after tap; tick() sends the last value after a short pause.
    float current=std::isfinite(t.edit_value)?t.edit_value:tile_controls::edit_target(t);
    t.edit_value=tile_controls::step_value(current,tile_controls::edit_step(t),t.minimum,t.maximum,command==tile_controls::STEP_UP?1:-1);
    t.edit_since=now;t.edit_sent=false;
    if(w.pill_value){std::string suffix=t.domain()=="climate"?"°":t.unit.empty()?"":" "+t.unit;label(w.pill_value,tile_controls::format_value(t.edit_value,tile_controls::edit_step(t),suffix.c_str()));}
    return;
  }
  if(t.awaiting_action(now))return;
  if(command==tile_controls::TOGGLE)t.optimistic_on=t.state!="on";
  auto a=tile_controls::key_action(t,command,w.key_args[n]);
  if(a.valid())action(a.service,t.entity,a.key,a.value);
}
// A busy card is covered by a translucent white sheet with a small spinner until
// Home Assistant confirms; the sheet also swallows taps meanwhile.
inline void set_busy(Widgets &w,bool busy,bool large){
  if(!busy){if(w.busy)lv_obj_add_flag(w.busy,LV_OBJ_FLAG_HIDDEN);return;}
  if(!w.busy){
    w.busy=lv_obj_create(w.tile);lv_obj_remove_style_all(w.busy);lv_obj_remove_flag(w.busy,LV_OBJ_FLAG_SCROLLABLE);lv_obj_add_flag(w.busy,LV_OBJ_FLAG_CLICKABLE);
    lv_obj_set_style_bg_color(w.busy,lv_color_hex(0xFFFFFF),0);lv_obj_set_style_bg_opa(w.busy,LV_OPA_60,0);
    lv_obj_set_style_radius(w.busy,lv_obj_get_style_radius(w.tile,LV_PART_MAIN),0);
#if LV_USE_SPINNER
    w.spinner=lv_spinner_create(w.busy);lv_spinner_set_anim_params(w.spinner,900,200);
    int size=large?30:20;lv_obj_set_size(w.spinner,size,size);lv_obj_center(w.spinner);lv_obj_remove_flag(w.spinner,LV_OBJ_FLAG_CLICKABLE);
    lv_obj_set_style_arc_width(w.spinner,large?4:3,LV_PART_MAIN);lv_obj_set_style_arc_width(w.spinner,large?4:3,LV_PART_INDICATOR);
    lv_obj_set_style_arc_color(w.spinner,lv_color_hex(0xD9DDE2),LV_PART_MAIN);lv_obj_set_style_arc_color(w.spinner,lv_color_hex(0x1E88E5),LV_PART_INDICATOR);
    lv_obj_set_style_bg_opa(w.spinner,LV_OPA_TRANSP,LV_PART_KNOB);lv_obj_set_style_pad_all(w.spinner,0,LV_PART_KNOB);
#endif
  }
  // Cover the whole card, padding included, at the width the card asks for: a slot that just turned
  // wide is still single width in LVGL's own coordinates. Unchanged sizes cost LVGL nothing.
  lv_obj_set_pos(w.busy,-lv_obj_get_style_pad_left(w.tile,LV_PART_MAIN),-lv_obj_get_style_pad_top(w.tile,LV_PART_MAIN));
  lv_obj_set_size(w.busy,tile_width(w),lv_obj_get_height(w.tile));
  lv_obj_remove_flag(w.busy,LV_OBJ_FLAG_HIDDEN);
  // Controls and custom parts created after the sheet would otherwise paint over its right side.
  if(lv_obj_get_index(w.busy)!=(int32_t)lv_obj_get_child_count(w.tile)-1)lv_obj_move_foreground(w.busy);
}
// One card: name, status, icon, layout and palette. Everything reads the model; nothing is created
// unless the card's custom parts or controls change kind.
inline void render_slot(size_t slot) {
  swipe_profile::SlotTimer slot_timer(slot);
  swipe_profile::Lap lap;
  auto &w=widgets[slot];
  if(!w.tile || w.index>=model.count)return;
  const auto &t = model.tiles[w.index];
  auto d=t.domain();
  label(w.title, t.name.empty() ? t.entity : t.name);
  label(w.icon, icon_for(t));
  bool watch=t.display=="watch";
  std::string unit=watch?t.unit:"";
  std::string value = t.state;
  // Nothing in Home Assistant stands behind the settings card, so it says the same with the link down.
  if (t.is_settings()) value = "Tap to open";
  else if (!fresh() || !t.available()) value = "Unavailable";
  else if (d == "light" && t.state == "on" && std::isfinite(t.brightness)) value = std::to_string(static_cast<int>(std::lround(std::clamp(t.brightness, 0.0f, 255.0f) * 100 / 255))) + " %";
  else if (d == "climate" && std::isfinite(t.target)) { char b[32]; snprintf(b, sizeof(b), "%.1f°", t.target); value = b; }
  else if (d == "person") value = t.state=="home"?"Home":t.state=="not_home"?"Away":t.state;
  else if (d == "sun") value = !t.extra().sunrise.empty() && !t.extra().sunset.empty() ? t.extra().sunrise+" - "+t.extra().sunset : t.state=="above_horizon"?"Above the horizon":"Below the horizon";
  else if (d == "timer") value = timer_text(t);
  else if (d == "script" || d == "scene" || d == "button" || d == "input_button") value = t.state == "on" ? "Running..." : last_run_text(t.last_run);
  else if (value == "on") value = "On";
  else if (value == "off") value = "Off";
  else if (value == "cleaning") value = "Cleaning";
  else if (value == "docked") value = "Docked";
  else if (!t.unit.empty() && !watch) value += " " + t.unit;
  bool pending=t.loading(esphome::millis());
  if(d=="weather" && std::isfinite(t.current)) {char b[32];snprintf(b,sizeof(b),"%.1f %s",t.current,t.unit.c_str());value=b;if(watch){snprintf(b,sizeof(b),"%.1f",t.current);value=b;}}
  if(d=="vacuum" && std::isfinite(t.battery))value += " / "+std::to_string((int)t.battery)+"%";
  // Direct controls: only a wide card in the standard layout has room for the panel.
  bool with_panel=w.wide && !t.controls.empty() && !t.builtin() && !watch && t.inline_control!="slider" && fresh() && t.available();
  if(with_panel){std::string status=tile_controls::status_text(t);if(!status.empty())value=status;}
  label(w.value, value);
  bool mini=t.inline_control=="slider" && !watch && t.available();
  bool large_tile=lv_obj_get_height(w.tile)>80;
  lap(swipe_profile::TEXT);
  // Cards that replace the name/status layout entirely.
  bool clock=t.is_clock(), forecast=d=="weather" && t.display=="forecast" && w.wide && t.extra().forecast.size()>0 && fresh() && t.available();
  bool sunpath=d=="sun" && t.display=="sunpath" && w.wide && !t.extra().sunrise.empty() && !t.extra().sunset.empty() && fresh() && t.available();
  bool graph=d=="sensor" && t.display=="graph" && t.has_history && !clock;
  bool custom=clock||forecast||sunpath;
  if(!large_tile)pad_vertical(w.tile,watch||custom||graph?2:4);
  set_font(w.value,watch && watch_value_font ? watch_value_font : w.value_font);
  // Both text boxes are one line high; the sizes come from the styles, not from a layout pass.
  int title_height=lv_font_get_line_height(lv_obj_get_style_text_font(w.title,LV_PART_MAIN));
  int value_height=lv_font_get_line_height(lv_obj_get_style_text_font(w.value,LV_PART_MAIN));
  lv_obj_set_height(w.value,value_height);
  int content_w=content_width(w),content_h=content_height(w);
  lap(swipe_profile::LAYOUT);
  set_busy(w,pending && !t.builtin(),large_tile);
  lap(swipe_profile::BUSY);
  for(auto *o:{w.title,w.value,w.circle,w.unit})set_hidden(o,custom);
  if(custom){
    lv_obj_add_flag(w.slider,LV_OBJ_FLAG_HIDDEN);hide_panel(w);
    lap(swipe_profile::GEOMETRY);
    if(clock)render_clock(w,t,large_tile,content_w,content_h);
    else if(sunpath)render_sunpath(w,t,large_tile,content_w,content_h);
    else render_forecast(w,t,large_tile,content_w,content_h);
    lap(swipe_profile::CUSTOM);
  }else{
  int line_gap=large_tile?2:1,text_height=title_height+line_gap+value_height;
  int slider_height=large_tile?28:8;
  // A single-width graph takes the slider strip; a wide graph takes the right half.
  bool graph_strip=graph && !w.wide, graph_side=graph && w.wide;
  int chart_w=graph_side?content_w*55/100:0;
  lap(swipe_profile::GEOMETRY);
  int panel_w=with_panel && !graph?layout_panel(w,t,large_tile,content_w,content_h):0;
  if(!panel_w)hide_panel(w);
  lap(swipe_profile::PANEL);
  int header_height=(mini||graph_strip)?content_h-slider_height-(large_tile?6:3):content_h;
  int text_y=std::max(0,(header_height-text_height)/2);
  int circle_size=watch?(large_tile?26:18):(mini||graph_strip)?(large_tile?36:24):(large_tile?54:36);
  lv_obj_set_size(w.circle,circle_size,circle_size);
  const lv_font_t *icon_font=watch && watch_icon_font ? watch_icon_font : (mini||graph_strip) && mini_icon_font ? mini_icon_font : w.icon_font;
  if(lv_obj_get_style_text_font(w.icon,LV_PART_MAIN)!=icon_font){set_font(w.icon,icon_font);lv_obj_center(w.icon);}
  int text_x=watch?0:(mini||graph_strip)?circle_size+(large_tile?8:6):w.title_x;
  lv_obj_set_pos(w.title,text_x,watch?0:(mini||graph_strip||!large_tile)?text_y:w.title_y);
  lv_obj_set_pos(w.value,watch?0:(mini||graph_strip)?text_x:w.value_x,
    watch?(large_tile?42:19):(mini||graph_strip||!large_tile)?text_y+title_height+line_gap:w.value_y);
  lv_obj_set_pos(w.circle,0,(mini||graph_strip||!large_tile)?std::max(0,(header_height-circle_size)/2):12);
  // Use the requested coordinates: LVGL getters still return the previous
  // layout until its next pass when a slot changes from watch/slider to normal.
  int text_room=content_w-chart_w-(graph_side?(large_tile?10:6):0)-panel_w;
  lv_obj_set_width(w.title,std::max(1,text_room-text_x));
  lv_obj_set_width(w.value,std::max(1,text_room-(watch?0:(mini||graph_strip)?text_x:w.value_x)));
  if(watch){
    int gap=large_tile?6:2,header=std::max(circle_size,title_height);
    int group_y=std::max(0,(content_h-header-gap-value_height)/2);
    int value_y=group_y+header+gap;
    lv_obj_set_pos(w.circle,0,group_y+(header-circle_size)/2);
    lv_obj_set_pos(w.title,circle_size+(large_tile?6:4),group_y+(header-title_height)/2);
    lv_obj_set_width(w.title,text_room-circle_size-(large_tile?6:4));
    label(w.unit,unit);
    lv_point_t size;lv_text_get_size(&size,unit.c_str(),w.value_font,0,0,LV_COORD_MAX,LV_TEXT_FLAG_EXPAND);
    int unit_width=unit.empty()?0:std::min((int)size.x,text_room-20);
    int number_width=text_room-(unit_width?unit_width+(large_tile?6:3):0);
    lv_obj_set_pos(w.value,0,value_y);lv_obj_set_width(w.value,number_width);
    lv_obj_set_pos(w.unit,text_room-unit_width,value_y+value_height-lv_font_get_line_height(w.value_font));
    lv_obj_set_size(w.unit,unit_width,lv_font_get_line_height(w.value_font));
    set_hidden(w.unit,!unit_width);
  }else lv_obj_add_flag(w.unit,LV_OBJ_FLAG_HIDDEN);
  lv_obj_set_size(w.slider,content_w,slider_height);
  slider_handle(w.slider,content_w,slider_height);
  if(mini){lv_obj_remove_flag(w.slider,LV_OBJ_FLAG_HIDDEN);if(!lv_obj_has_state(w.slider,LV_STATE_PRESSED) && lv_slider_get_value(w.slider)!=slider_value(t))lv_slider_set_value(w.slider,slider_value(t),LV_ANIM_OFF);}
  else lv_obj_add_flag(w.slider,LV_OBJ_FLAG_HIDDEN);
  lap(swipe_profile::GEOMETRY);
  if(graph_strip)render_graph(w,t,large_tile,0,content_h-slider_height,content_w,slider_height);
  else if(graph_side)render_graph(w,t,large_tile,content_w-chart_w,0,chart_w,content_h);
  else hide_extra(w);
  lap(swipe_profile::CUSTOM);
  }
  bool on = fresh() && t.active();
  bool available=fresh() && t.available();
  int palette_state=(available?2:0)|(on?1:0);
  if (w.cached_active == palette_state && !w.panel_dirty) { lap(swipe_profile::GEOMETRY); return; }
  w.cached_active = palette_state;w.panel_dirty=false;
  uint32_t accent = domain_accent(t);
  auto color=lv_color_hex((t.is_switch()||d=="person"||d=="timer") && !on ? 0x9E9E9E : accent);
  if(d=="light" && on && t.has_hs_color)
    color=lv_color_hsv_to_rgb(t.hue%360,t.saturation,100);
  auto circle_color=available?lv_color_mix(color,lv_color_hex(0xFFFFFF),38):lv_color_hex(0xF0F0F0);
  // Darken the foreground slightly: very pale bulbs still need a visible icon.
  auto icon_color=available?lv_color_mix(color,lv_color_hex(0x333333),205):lv_color_hex(0x9E9E9E);
  // Off: a grey track without fill or handle, as in Home Assistant.
  auto fill_color=on?color:lv_color_hex(0x9E9E9E);
  set_color(w.slider,LV_STYLE_BG_COLOR,fill_color,LV_PART_INDICATOR);
  set_color(w.slider,LV_STYLE_BG_COLOR,lv_color_mix(fill_color,lv_color_hex(0xFFFFFF),51),LV_PART_MAIN);
  slider_bar(w.slider,slider_bar_shown(t,on));
  set_color(w.tile,LV_STYLE_BG_COLOR,lv_color_hex(t.background ? t.background : 0xFFFFFF));
  set_number(w.tile,LV_STYLE_BORDER_WIDTH,1);
  // "Background: none" hides only the card; geometry and padding stay identical,
  // and the pressed flash still shows because it lives on the PRESSED state.
  set_number(w.tile,LV_STYLE_BG_OPA,t.transparent ? LV_OPA_TRANSP : LV_OPA_COVER);
  set_number(w.tile,LV_STYLE_BORDER_OPA,t.transparent ? LV_OPA_TRANSP : LV_OPA_COVER);
  set_color(w.tile,LV_STYLE_BORDER_COLOR,t.background ? lv_color_mix(lv_color_hex(t.background),lv_color_hex(0x000000),220) : lv_color_hex(0xDDDDDD));
  set_color(w.circle,LV_STYLE_BG_COLOR,circle_color);
  set_color(w.icon,LV_STYLE_TEXT_COLOR,icon_color);
  auto title_color=lv_color_hex(0x1B1B1B);
  auto value_color=lv_color_hex(t.background ? 0x46525E : 0x616161);
  set_color(w.unit,LV_STYLE_TEXT_COLOR,lv_color_hex(0x46525E));
  set_color(w.title,LV_STYLE_TEXT_COLOR,title_color);
  set_color(w.value,LV_STYLE_TEXT_COLOR,value_color);
  style_panel(w,t,color,title_color);
  // Custom parts follow the card palette: text like the title, lines/dots in the accent.
  // The sun path sets its own colours on every render.
  w.fill_color=color;
  for(unsigned i=0;i<w.parts.size();++i){
    auto *p=w.parts[i];if(!p)continue;
    bool muted=w.extra_mode=="forecast" ? i>=2 && i%3==2 : w.extra_mode=="sunpath" ? i>=1 : w.extra_mode=="calendar" ? i==15||i==17 : i==16;
    if(lv_obj_check_type(p,&lv_label_class))set_color(p,LV_STYLE_TEXT_COLOR,muted?value_color:title_color);
    else if(w.extra_mode=="sunpath")continue;
    else if(lv_obj_check_type(p,&lv_line_class))set_color(p,LV_STYLE_LINE_COLOR,w.extra_mode=="graph"?color:i==18?lv_color_hex(0xE53935):i<12?value_color:i==13?icon_color:title_color);
    else set_color(p,LV_STYLE_BG_COLOR,i==14?icon_color:value_color);
  }
  lap(swipe_profile::PALETTE);
}
// What the next render() draws besides the name and the top bar: the cards of the tiles a state
// message or a tick named, or every card. A refresh that names nothing (the board's own triggers,
// such as the minute tick and time sync) draws every card.
inline uint32_t dirty_tiles=0;
inline bool dirty_all=false, dirty_header=false;
inline void refresh_tile(size_t index) { if(index<32)dirty_tiles|=1u<<index; else dirty_all=true; if(refresh)refresh(); }
inline void refresh_header_only() { dirty_header=true; if(refresh)refresh(); }
inline void refresh_all() { dirty_all=true; if(refresh)refresh(); }
// Slots whose new page content is still to come: the page fill draws them, render() leaves them.
inline std::array<bool,SLOTS_PER_PAGE> slot_pending{};
// Cards per fill step, the swipe pass included; the next waiting slot; the step timer, and whether
// LVGL refreshed the screen since the last step.
inline size_t FILL_STEP_CARDS=2;
inline size_t fill_next=SLOTS_PER_PAGE;
inline lv_timer_t *fill_timer=nullptr;
inline bool fill_refreshed=false;
inline uint32_t fill_step_ms=0;
inline bool fill_cards(size_t cards);
// Before the first layout the screen is starting: HA connects, then ESP Screens sends the tiles.
inline void render(lv_obj_t *room) {
  if (!enabled) return;
  room_label=room; swipe_profile::Lap lap;
  label(room, !model.configured ? (!ha_connected() ? "Connecting to Home Assistant..." : "Waiting for ESP Screens...") : !model.ready() ? "Loading tiles..." : !ha_connected() ? "HA not connected" : !feed_alive() ? "ESP Screens not active" : model.title);
  render_header();
  lap(swipe_profile::HEADER);
  bool all=dirty_all || (!dirty_tiles && !dirty_header);
  uint32_t tiles=dirty_tiles;
  dirty_all=dirty_header=false;dirty_tiles=0;
  for (size_t slot = 0; slot < SLOTS_PER_PAGE; ++slot) {
    const auto &w=widgets[slot];
    if(slot_pending[slot] || w.index>=model.count)continue;
    if(all || (w.index<32 && (tiles>>w.index)&1))render_slot(slot);
  }
}

// ---- Top bar ----
// Drawn in the board's pixels by the editor's rules (app.js barLayout): every value, the time too,
// in one font on the name's baseline; icons and the dial centred on the height of the digits; the
// gaps measured between glyph ink, so every icon sits equally close to its value.
struct HeaderSlot { lv_obj_t *icon{}, *text{}; uint32_t icon_color = 0; };
inline lv_obj_t *header_root = nullptr, *header_ring = nullptr;
inline std::array<lv_obj_t *, 2> header_hands{};
inline std::array<HeaderSlot, header_bar::MAX_ITEMS> header_slots{};
inline lv_point_precise_t header_points[4]{};
inline int header_dial_key = -1;
constexpr uint32_t HEADER_INK = 0x46525E;
inline void set_visible(lv_obj_t *obj, bool visible) {
  if (lv_obj_has_flag(obj, LV_OBJ_FLAG_HIDDEN) != visible) return;
  if (visible) lv_obj_remove_flag(obj, LV_OBJ_FLAG_HIDDEN); else lv_obj_add_flag(obj, LV_OBJ_FLAG_HIDDEN);
}
// Ink edges of a text from its label's left edge, and its advance (what LVGL sizes a label by).
struct TextInk { int left = 0, right = 0, advance = 0; };
inline TextInk text_ink(const lv_font_t *font, const std::string &text) {
  TextInk ink;
  bool first = true;
  size_t i = 0;
  for (uint32_t cp = header_bar::next_codepoint(text, i); cp; cp = header_bar::next_codepoint(text, i)) {
    lv_font_glyph_dsc_t g;
    if (!lv_font_get_glyph_dsc(font, &g, cp, 0)) continue;
    if (g.box_w > 0) {
      if (first) { ink.left = ink.advance + g.ofs_x; first = false; }
      ink.right = ink.advance + g.ofs_x + g.box_w;
    }
    ink.advance += g.adv_w;
  }
  return ink;
}
inline lv_obj_t *header_part(lv_obj_t *parent) {
  auto *part = lv_label_create(parent);
  lv_obj_remove_flag(part, LV_OBJ_FLAG_CLICKABLE);
  lv_obj_add_flag(part, LV_OBJ_FLAG_HIDDEN);
  lv_obj_set_style_text_color(part, lv_color_hex(HEADER_INK), 0);
  return part;
}
// `live`: Home Assistant's values may show; without its link or the manager's feed only clocks stay.
inline void draw_header(bool live) {
  if (!room_label || !time_label || !header_text_font || !header_icon_font) return;
  set_visible(time_label, false);
  auto *page = lv_obj_get_parent(room_label);
  if (!header_root) {
    header_root = lv_obj_create(page);
    lv_obj_remove_style_all(header_root);
    lv_obj_remove_flag(header_root, LV_OBJ_FLAG_CLICKABLE);
    lv_obj_remove_flag(header_root, LV_OBJ_FLAG_SCROLLABLE);
    // The clock label's place in the drawing order: under the tiles, cards and overlays.
    lv_obj_move_to_index(header_root, lv_obj_get_index(time_label));
    for (auto &slot : header_slots) {
      slot.icon = header_part(header_root);
      slot.text = header_part(header_root);
      lv_obj_set_style_text_font(slot.icon, header_icon_font, 0);
      lv_obj_set_style_text_font(slot.text, header_text_font, 0);
      slot.icon_color = HEADER_INK;
    }
    header_ring = lv_obj_create(header_root);
    lv_obj_remove_style_all(header_ring);
    lv_obj_remove_flag(header_ring, LV_OBJ_FLAG_CLICKABLE);
    lv_obj_remove_flag(header_ring, LV_OBJ_FLAG_SCROLLABLE);
    lv_obj_set_style_radius(header_ring, LV_RADIUS_CIRCLE, 0);
    lv_obj_set_style_border_color(header_ring, lv_color_hex(HEADER_INK), 0);
    lv_obj_set_style_border_opa(header_ring, LV_OPA_COVER, 0);
    lv_obj_add_flag(header_ring, LV_OBJ_FLAG_HIDDEN);
    for (auto *&hand : header_hands) {
      hand = lv_line_create(header_root);
      lv_obj_remove_flag(hand, LV_OBJ_FLAG_CLICKABLE);
      lv_obj_set_style_line_rounded(hand, true, 0);
      lv_obj_set_style_line_color(hand, lv_color_hex(HEADER_INK), 0);
      lv_obj_add_flag(hand, LV_OBJ_FLAG_HIDDEN);
    }
    // A long name ends in dots instead of running under the items.
    lv_label_set_long_mode(room_label, LV_LABEL_LONG_DOT);
  }
  // Geometry from the profile's own widgets: the name's margin and baseline, the clock's right margin.
  const lv_font_t *name_font = lv_obj_get_style_text_font(room_label, LV_PART_MAIN);
  int page_w = lv_obj_get_width(page), left = lv_obj_get_x(room_label);
  // int32_t is long on the ESP32 toolchain: keep the arithmetic in int.
  int width = std::max(0, page_w + static_cast<int>(lv_obj_get_style_x(time_label, LV_PART_MAIN)) - left);
  int baseline = lv_obj_get_y(room_label) + (name_font->line_height - name_font->base_line);
  lv_obj_set_pos(header_root, 0, 0);
  lv_obj_set_size(header_root, page_w, baseline + name_font->line_height);
  lv_font_glyph_dsc_t zero, dial_glyph;
  if (!lv_font_get_glyph_dsc(header_text_font, &zero, '0', 0) || !zero.box_h) return;
  // Twice the digits' ink centre keeps the halves exact.
  int middle2 = 2 * (baseline - zero.ofs_y) - zero.box_h;
  auto gaps = header_bar::gaps(zero.box_h);
  // The dial is as large as a round icon (clock-outline) of the icon font.
  int dial = lv_font_get_glyph_dsc(header_icon_font, &dial_glyph, 0xF0150, 0) && dial_glyph.box_h ? dial_glyph.box_h : zero.box_h * 3 / 2;

  // The manager's items; until it sends them, the clock of show_clock as before the top bar.
  header_bar::Bar fallback;
  if (!header.received && screen_settings::current.show_clock) { fallback.items[0].kind = header_bar::Kind::clock; fallback.count = 1; }
  const header_bar::Bar &bar = header.received ? header : fallback;
  auto now = now_time ? now_time() : esphome::ESPTime{};
  struct Part { size_t item = 0; uint32_t icon = 0; int icon_left = 0, icon_w = 0, text_left = 0, text_w = 0, width = 0; bool dial = false; std::string text; };
  std::array<Part, header_bar::MAX_ITEMS> parts;
  std::array<int, header_bar::MAX_ITEMS> widths{};
  size_t count = 0;
  for (size_t i = 0; i < bar.count; ++i) {
    const auto &item = bar.items[i];
    using header_bar::Kind;
    if ((item.kind == Kind::text || item.kind == Kind::ago) && !live) continue;
    Part p;
    p.item = i;
    if (item.kind == Kind::analog) { p.dial = true; p.width = dial; }
    else {
      p.text = item.kind == Kind::clock ? (now.is_valid() ? now.strftime(screen_settings::current.clock_24h ? "%H:%M" : "%I:%M") : std::string("--:--"))
             : item.kind == Kind::date ? (now.is_valid() ? header_bar::date_text(now.day_of_week, now.day_of_month, now.month) : std::string("—"))
             : item.kind == Kind::ago ? header_bar::ago_text(item.epoch, now_epoch()) : item.text;
      lv_font_glyph_dsc_t g;
      if (item.icon && lv_font_get_glyph_dsc(header_icon_font, &g, item.icon, 0) && g.box_w) { p.icon = item.icon; p.icon_left = g.ofs_x; p.icon_w = g.box_w; }
      auto ink = text_ink(header_text_font, p.text);
      p.text_left = ink.left;
      p.text_w = std::max(0, ink.right - ink.left);
      p.width = p.icon_w + (p.icon && p.text_w ? gaps.icon : 0) + p.text_w;
    }
    if (!p.width) continue;
    widths[count] = p.width;
    parts[count++] = p;
  }
  lv_point_t name_size;
  lv_text_get_size(&name_size, lv_label_get_text(room_label), name_font, 0, 0, LV_COORD_MAX, LV_TEXT_FLAG_EXPAND);
  auto placement = header_bar::place(widths.data(), count, gaps, width, name_size.x);
  lv_obj_set_width(room_label, std::max(1, std::min<int>(name_size.x, placement.name_room)));
  lv_obj_set_height(room_label, lv_font_get_line_height(name_font));

  std::array<bool, header_bar::MAX_ITEMS> icon_on{}, text_on{};
  bool dial_on = false;
  for (size_t k = placement.first; k < count; ++k) {
    const auto &p = parts[k];
    auto &slot = header_slots[k];
    int x = left + placement.x[k];
    if (p.dial) {
      int top = (middle2 - dial) / 2, stroke = std::max(1, (dial + 5) / 10), hand = std::max(1, (dial * 75 + 500) / 1000);
      lv_obj_set_pos(header_ring, x, top);
      lv_obj_set_size(header_ring, dial, dial);
      if (lv_obj_get_style_border_width(header_ring, LV_PART_MAIN) != stroke) lv_obj_set_style_border_width(header_ring, stroke, 0);
      int minute = now.is_valid() ? now.hour * 60 + now.minute : 0;
      int key = ((minute * 1024 + x) * 1024 + top) * 64 + dial;
      if (key != header_dial_key) {
        header_dial_key = key;
        float centre = dial / 2.0f, hour_angle = (minute % 720) * 3.14159265f / 360, minute_angle = (minute % 60) * 3.14159265f / 30;
        header_points[0] = header_points[2] = {(lv_value_precise_t)centre, (lv_value_precise_t)centre};
        header_points[1] = {(lv_value_precise_t)(centre + 0.24f * dial * sinf(hour_angle)), (lv_value_precise_t)(centre - 0.24f * dial * cosf(hour_angle))};
        header_points[3] = {(lv_value_precise_t)(centre + 0.34f * dial * sinf(minute_angle)), (lv_value_precise_t)(centre - 0.34f * dial * cosf(minute_angle))};
        for (size_t h = 0; h < header_hands.size(); ++h) {
          lv_line_set_points(header_hands[h], header_points + 2 * h, 2);
          lv_obj_set_pos(header_hands[h], x, top);
          set_line_width(header_hands[h], hand);
        }
      }
      dial_on = true;
      continue;
    }
    if (p.icon) {
      lv_font_glyph_dsc_t g;
      lv_font_get_glyph_dsc(header_icon_font, &g, p.icon, 0);
      label(slot.icon, tile_icon::utf8(p.icon));
      // LVGL draws a glyph's ink from (line_height - base_line) - box_h - ofs_y below the label top.
      int ink_top = (middle2 - g.box_h) / 2;
      lv_obj_set_pos(slot.icon, x - g.ofs_x, ink_top - ((header_icon_font->line_height - header_icon_font->base_line) - g.box_h - g.ofs_y));
      const auto &item = bar.items[p.item];
      uint32_t color = item.has_color ? item.color : HEADER_INK;
      if (slot.icon_color != color) { lv_obj_set_style_text_color(slot.icon, lv_color_hex(color), 0); slot.icon_color = color; }
      icon_on[k] = true;
      x += p.icon_w + (p.text_w ? gaps.icon : 0);
    }
    if (p.text_w) {
      label(slot.text, p.text);
      lv_obj_set_pos(slot.text, x - p.text_left, baseline - (header_text_font->line_height - header_text_font->base_line));
      text_on[k] = true;
    }
  }
  for (size_t k = 0; k < header_slots.size(); ++k) { set_visible(header_slots[k].icon, icon_on[k]); set_visible(header_slots[k].text, text_on[k]); }
  set_visible(header_ring, dial_on);
  for (auto *hand : header_hands) set_visible(hand, dial_on);
}
inline void render_header() {
  if (enabled) draw_header(ha_connected() && feed_alive());
}

// Inspect actual LVGL coordinates, including padding and the loaded font metrics.
inline bool check_tile_geometry() {
  bool ok=true;
  if(fill_next<SLOTS_PER_PAGE){ESP_LOGW("ui_test","page fill still under way at the check");fill_cards(SLOTS_PER_PAGE);}
  for(auto &w:widgets){
    if(!w.tile || lv_obj_has_flag(w.tile,LV_OBJ_FLAG_HIDDEN))continue;
    lv_obj_update_layout(w.tile);
    lv_area_t title,value,track,content;
    lv_obj_get_content_coords(w.tile,&content);
    lv_obj_get_coords(w.title,&title);lv_obj_get_coords(w.value,&value);
    bool custom=lv_obj_has_flag(w.title,LV_OBJ_FLAG_HIDDEN);
    bool fits=true;
    if(w.wide && widgets[1].tile){
      // A wide card ends exactly where the right column ends.
      lv_area_t left,right;lv_obj_get_coords(w.tile,&left);lv_obj_get_coords(widgets[1].tile,&right);
      int expected=lv_obj_get_x(widgets[1].tile)-lv_obj_get_x(widgets[0].tile)+w.base_width;
      fits=lv_obj_get_width(w.tile)==expected;
      if(!fits)ESP_LOGE("ui_test","Wide width FAIL slot=%u width=%d expected=%d",(unsigned)w.index,lv_obj_get_width(w.tile),expected);
    }
    if(!custom){
      fits=fits && title.x1>=content.x1 && title.x2<=content.x2 &&
        value.x1>=content.x1 && value.x2<=content.x2 && title.y2<value.y1 && value.y2<=content.y2;
      if(!lv_obj_has_flag(w.slider,LV_OBJ_FLAG_HIDDEN)){
        lv_obj_get_coords(w.slider,&track);
        fits=fits && value.y2<track.y1 && track.y2<=content.y2;
      }
      if(!lv_obj_has_flag(w.circle,LV_OBJ_FLAG_HIDDEN)){
        lv_area_t circle;lv_obj_get_coords(w.circle,&circle);
        bool mini=!lv_obj_has_flag(w.slider,LV_OBJ_FLAG_HIDDEN);
        fits=fits && circle.x1>=content.x1 && circle.x2<title.x1 && circle.y1>=content.y1;
        if(mini)fits=fits && circle.y2<track.y1;
        else fits=fits && circle.y2<=content.y2;
        if(!fits)ESP_LOGE("ui_test","Icon bounds slot=%u circle=%d,%d..%d,%d title_x=%d content=%d,%d..%d,%d",(unsigned)w.index,circle.x1,circle.y1,circle.x2,circle.y2,title.x1,content.x1,content.y1,content.x2,content.y2);
        bool watch=w.index<model.count && model.tiles[w.index].display=="watch";
        bool graph=w.extra && !lv_obj_has_flag(w.extra,LV_OBJ_FLAG_HIDDEN) && w.extra_mode=="graph";
        if(!watch && !graph && (mini || lv_obj_get_height(w.tile)<=80)){
          int header_bottom=mini?track.y1-(lv_obj_get_height(w.tile)>80?6:3)-1:content.y2;
          int center_twice=content.y1+header_bottom;
          fits=fits && std::abs(circle.y1+circle.y2-center_twice)<=2 &&
            std::abs(title.y1+value.y2-center_twice)<=2;
        }
      }
      if(!lv_obj_has_flag(w.unit,LV_OBJ_FLAG_HIDDEN)){
        lv_area_t unit;lv_obj_get_coords(w.unit,&unit);
        fits=fits && value.x2<unit.x1 && unit.x2<=content.x2 && unit.y2<=content.y2 && unit.y1>title.y2;
      }
    }
    if(w.panel && !lv_obj_has_flag(w.panel,LV_OBJ_FLAG_HIDDEN)){
      // Direct controls stay inside the card, right of the name and status, and inside their panel.
      lv_area_t panel;lv_obj_get_coords(w.panel,&panel);
      bool inside=panel.x1>=content.x1 && panel.x2<=content.x2 && panel.y1>=content.y1 && panel.y2<=content.y2 && (custom || (title.x2<panel.x1 && value.x2<panel.x1));
      for(uint32_t i=0;i<lv_obj_get_child_count(w.panel);++i){
        auto *child=lv_obj_get_child(w.panel,i);if(lv_obj_has_flag(child,LV_OBJ_FLAG_HIDDEN))continue;
        lv_area_t part;lv_obj_get_coords(child,&part);
        inside=inside && part.x1>=panel.x1 && part.x2<=panel.x2 && part.y1>=panel.y1 && part.y2<=panel.y2;
      }
      if(!inside)ESP_LOGE("ui_test","Panel bounds slot=%u mode=%s panel=%d,%d..%d,%d title_x2=%d content=%d,%d..%d,%d",(unsigned)w.index,w.panel_mode.c_str(),panel.x1,panel.y1,panel.x2,panel.y2,title.x2,content.x1,content.y1,content.x2,content.y2);
      fits=fits && inside;
    }
    if(w.extra && !lv_obj_has_flag(w.extra,LV_OBJ_FLAG_HIDDEN)){
      // Custom parts stay inside the card; a graph never runs into the text.
      lv_area_t extra;lv_obj_get_coords(w.extra,&extra);
      fits=fits && extra.x1>=content.x1 && extra.x2<=content.x2 && extra.y1>=content.y1 && extra.y2<=content.y2;
      for(auto *p:w.parts){
        if(!p || lv_obj_has_flag(p,LV_OBJ_FLAG_HIDDEN))continue;
        lv_area_t part;lv_obj_get_coords(p,&part);
        bool inside=part.x1>=content.x1 && part.x2<=content.x2 && part.y1>=content.y1 && part.y2<=content.y2;
        if(!inside)ESP_LOGE("ui_test","Part bounds slot=%u mode=%s part=%d,%d..%d,%d content=%d,%d..%d,%d",(unsigned)w.index,w.extra_mode.c_str(),part.x1,part.y1,part.x2,part.y2,content.x1,content.y1,content.x2,content.y2);
        fits=fits && inside;
        if(w.extra_mode=="graph" && !custom)fits=fits && (w.wide?part.x1>value.x2:part.y1>value.y2);
      }
    }
    if(!fits)ESP_LOGE("ui_test","Tile geometry FAIL slot=%u mode=%s wide=%d title_y=%d..%d value_y=%d..%d content_y=%d..%d",(unsigned)w.index,w.extra_mode.c_str(),w.wide,title.y1,title.y2,value.y1,value.y2,content.y1,content.y2);
    if(w.index<model.count && model.tiles[w.index].background){
      bool palette_ok=lv_color_eq(lv_obj_get_style_bg_color(w.tile,LV_PART_MAIN),lv_color_hex(model.tiles[w.index].background)) &&
        lv_color_eq(lv_obj_get_style_text_color(w.title,LV_PART_MAIN),lv_color_hex(0x1B1B1B));
      if(!palette_ok)ESP_LOGE("ui_test","Tile palette FAIL slot=%u",(unsigned)w.index);
      fits=fits && palette_ok;
    }
    if(w.index<model.count){
      bool bare=model.tiles[w.index].transparent;
      bool opa_ok=(lv_obj_get_style_bg_opa(w.tile,LV_PART_MAIN)==LV_OPA_TRANSP)==bare && (lv_obj_get_style_border_opa(w.tile,LV_PART_MAIN)==LV_OPA_TRANSP)==bare;
      if(!opa_ok)ESP_LOGE("ui_test","Tile background FAIL slot=%u transparent=%d",(unsigned)w.index,bare);
      fits=fits && opa_ok;
    }
    ok=ok && fits;
  }
  return ok;
}

inline unsigned page_count() {
  std::array<Placement,MAX_TILES> placement;
  return place(model,placement);
}
// Page switches feel immediate without blocking touch: the swipe pass places the new page (page
// number, card widths), draws its first two cards and gives the others a light skeleton frame, all
// in the very next frame. Every following LVGL refresh draws the next two cards, so the loop, and
// the touch polling in it, runs between the steps, and a new swipe drops a fill still under way.
// Keepalives and re-packing on the same page draw at once. Nothing is allocated.
inline lv_obj_t *nav_prev=nullptr,*nav_next=nullptr,*nav_number=nullptr;
inline int applied_page=-1;
// Slot assignment plus card widths and visibility for a page; contents are untouched.
inline int place_page(int page) {
  swipe_profile::Lap lap;
  std::array<Placement,MAX_TILES> placement;
  int pages=place(model,placement);
  page=std::clamp(page,0,pages-1);
  int wide_width=widgets[0].tile && widgets[1].tile ? lv_obj_get_x(widgets[1].tile)-lv_obj_get_x(widgets[0].tile)+widgets[0].base_width : 2*widgets[0].base_width;
  for(size_t slot=0;slot<widgets.size();++slot){widgets[slot].index=MAX_TILES;widgets[slot].wide=false;widgets[slot].cached_active=-1;}
  for(size_t i=0;i<model.count;++i)if(placement[i].page==page){auto &w=widgets[placement[i].slot];w.index=i;w.wide=model.tiles[i].wide;}
  for(size_t slot=0;slot<widgets.size();++slot){
    auto &w=widgets[slot];if(!w.tile)continue;
    if(slot<SLOTS_PER_PAGE && w.index<model.count){lv_obj_set_width(w.tile,w.wide?wide_width:w.base_width);lv_obj_remove_flag(w.tile,LV_OBJ_FLAG_HIDDEN);}
    else{lv_obj_add_flag(w.tile,LV_OBJ_FLAG_HIDDEN);hide_extra(w);hide_panel(w);}
  }
  for(auto *control:{nav_prev,nav_next,nav_number})set_hidden(control,pages<=1);
  if(page==0)lv_obj_add_state(nav_prev,LV_STATE_DISABLED);else lv_obj_remove_state(nav_prev,LV_STATE_DISABLED);
  if(page==pages-1)lv_obj_add_state(nav_next,LV_STATE_DISABLED);else lv_obj_remove_state(nav_next,LV_STATE_DISABLED);
  for(auto *control:{nav_prev,nav_next})if(lv_obj_get_child_count(control))
    set_number(lv_obj_get_child(control,0),LV_STYLE_TEXT_OPA,lv_obj_has_state(control,LV_STATE_DISABLED)?LV_OPA_30:LV_OPA_COVER);
  label(nav_number,std::to_string(page+1)+" / "+std::to_string(pages));
  lap(swipe_profile::PLACE);
  return page;
}
// The skeleton frame is the empty card: its contents hidden under a sheet in the card's own colour
// (the page colour for a card without a background) that covers the content area. The sheet is a
// plain rectangle inside the card's padding, so it has no corners, border or layer to render, and
// while it is up LVGL draws nothing under it. Drawing the card takes the sheet away again.
inline lv_color_t page_color(const Widgets &w) {
  for(auto *o=lv_obj_get_parent(w.tile);o;o=lv_obj_get_parent(o))
    if(lv_obj_get_style_bg_opa(o,LV_PART_MAIN)>=LV_OPA_MAX)return lv_obj_get_style_bg_color(o,LV_PART_MAIN);
  return lv_color_hex(0xE7E7E7);
}
inline void skeleton(Widgets &w) {
  for(auto *o:{w.title,w.value,w.circle,w.unit,w.slider,w.extra,w.panel,w.busy})if(o)lv_obj_add_flag(o,LV_OBJ_FLAG_HIDDEN);
  if(!w.veil){
    w.veil=lv_obj_create(w.tile);lv_obj_remove_style_all(w.veil);
    lv_obj_remove_flag(w.veil,LV_OBJ_FLAG_CLICKABLE);lv_obj_remove_flag(w.veil,LV_OBJ_FLAG_SCROLLABLE);
    lv_obj_set_style_bg_opa(w.veil,LV_OPA_COVER,0);
  }
  const Tile *t=w.index<model.count?&model.tiles[w.index]:nullptr;
  set_color(w.veil,LV_STYLE_BG_COLOR,t && t->transparent?page_color(w):lv_color_hex(t && t->background?t->background:0xFFFFFF));
  lv_obj_set_pos(w.veil,0,0);
  lv_obj_set_size(w.veil,content_width(w),content_height(w));
  lv_obj_remove_flag(w.veil,LV_OBJ_FLAG_HIDDEN);
  if(lv_obj_get_index(w.veil)!=(int32_t)lv_obj_get_child_count(w.tile)-1)lv_obj_move_foreground(w.veil);
}
inline void drop_veil(Widgets &w) {
  if(w.veil && !lv_obj_has_flag(w.veil,LV_OBJ_FLAG_HIDDEN))lv_obj_add_flag(w.veil,LV_OBJ_FLAG_HIDDEN);
}
// Draws up to `cards` waiting cards in slot order; true once the page is complete.
inline bool fill_cards(size_t cards) {
  for(size_t drawn=0;fill_next<SLOTS_PER_PAGE && drawn<cards;++fill_next){
    if(!slot_pending[fill_next])continue;
    slot_pending[fill_next]=false;render_slot(fill_next);drop_veil(widgets[fill_next]);++drawn;
  }
  while(fill_next<SLOTS_PER_PAGE && !slot_pending[fill_next])++fill_next;
  fill_step_ms=esphome::millis();fill_refreshed=false;
  if(fill_next<SLOTS_PER_PAGE)return false;
  if(fill_timer)lv_timer_pause(fill_timer);
  swipe_profile::content_complete();
  return true;
}
inline void cancel_fill() {
  fill_next=SLOTS_PER_PAGE;slot_pending.fill(false);
  if(fill_timer)lv_timer_pause(fill_timer);
}
inline void fill_timer_done(lv_timer_t *) {
  // One step per refresh, so a step's frame reaches the glass before the next step is drawn. A step
  // that changed no pixel starts no refresh; the fill then moves on after a short wait.
  if(fill_next>=SLOTS_PER_PAGE || (!fill_refreshed && esphome::millis()-fill_step_ms<40))return;
  swipe_profile::FillTimer timer;
  fill_cards(FILL_STEP_CARDS);
}
inline void apply_page(int page) {
  cancel_fill();
  applied_page=place_page(page);
  for(auto &w:widgets)drop_veil(w);
  if(room_label){dirty_all=true;render(room_label);}else refresh_all();
}
inline int *shown_page=nullptr;
inline void show_page(int &page, lv_obj_t *previous, lv_obj_t *next, lv_obj_t *number) {
  nav_prev=previous;nav_next=next;nav_number=number;shown_page=&page;
  int requested=page;
  page=std::clamp(page,0,int(page_count())-1);
  // A swipe past the first or last page: the page on screen is already right, so nothing is
  // drawn again. A layout change always lands in range or on a different page.
  if(requested!=page && page==applied_page)return;
  if(applied_page<0 || page==applied_page || !room_label){apply_page(page);return;}
  swipe_profile::begin(applied_page,page);
  swipe_profile::SkeletonTimer timer;
  cancel_fill();
  applied_page=place_page(page);
  swipe_profile::Lap lap;
  for(size_t slot=0;slot<SLOTS_PER_PAGE;++slot){
    auto &w=widgets[slot];
    slot_pending[slot]=w.tile && w.index<model.count;
    if(slot_pending[slot])skeleton(w);
  }
  for(size_t slot=SLOTS_PER_PAGE;slot<widgets.size();++slot)drop_veil(widgets[slot]);
  lap(swipe_profile::SKELETON);
  // The skeleton frame goes out first; the fill starts on the refresh after it.
  fill_next=0;fill_step_ms=esphome::millis();fill_refreshed=false;
  if(!fill_timer){
    fill_timer=lv_timer_create(fill_timer_done,1,nullptr);
    if(auto *display=lv_display_get_default())
      lv_display_add_event_cb(display,[](lv_event_t *){fill_refreshed=true;},LV_EVENT_REFR_READY,nullptr);
  }
  lv_timer_resume(fill_timer);
}

#ifdef SWIPE_PROFILE
inline unsigned swipe_test_left=0, swipe_test_back=0;
inline bool swipe_test_returning=false;
inline lv_timer_t *swipe_test_timer=nullptr;
inline void swipe_test_step(lv_timer_t *timer) {
  if(!shown_page || !swipe_test_left || page_count()<2){lv_timer_pause(timer);swipe_test_left=0;ESP_LOGI("swipe_prof","swipe test finished");return;}
  int pages=page_count(),from=*shown_page;
  *shown_page=swipe_test_returning?from-1:(from+1<pages?from+1:0);
  if(*shown_page<0)*shown_page=pages-1;
  show_page(*shown_page,nav_prev,nav_next,nav_number);
  if(swipe_test_back && !swipe_test_returning){swipe_test_returning=true;lv_timer_set_period(timer,swipe_test_back);return;}
  swipe_test_returning=false;--swipe_test_left;
  lv_timer_set_period(timer,lv_timer_get_user_data(timer)?(uint32_t)(uintptr_t)lv_timer_get_user_data(timer):1200);
}
inline void swipe_test(unsigned count, unsigned interval_ms, unsigned back_ms, JsonObject tuning) {
  // Cards per fill step for the measurement.
  if(tuning["cards"].is<unsigned>())FILL_STEP_CARDS=std::clamp<unsigned>(tuning["cards"].as<unsigned>(),1,6);
  ESP_LOGI("swipe_prof","tuning: %u cards per step",(unsigned)FILL_STEP_CARDS);
  swipe_test_left=std::min(count,200u);swipe_test_back=back_ms;swipe_test_returning=false;
  interval_ms=std::clamp(interval_ms,200u,10000u);
  if(!swipe_test_timer)swipe_test_timer=lv_timer_create(swipe_test_step,interval_ms,(void*)(uintptr_t)interval_ms);
  lv_timer_set_user_data(swipe_test_timer,(void*)(uintptr_t)interval_ms);
  lv_timer_set_period(swipe_test_timer,interval_ms);lv_timer_reset(swipe_test_timer);lv_timer_resume(swipe_test_timer);
  ESP_LOGI("swipe_prof","swipe test: %u page switches every %u ms, back after %u ms",swipe_test_left,interval_ms,back_ms);
}
#endif
inline uint32_t last_live_second=0;
inline int last_clock_minute=-2;
inline bool was_fresh=false;
inline void tick() {
  if(detail_root && !lv_obj_has_flag(detail_root,LV_OBJ_FLAG_HIDDEN) && detail_index<model.count){
    auto &t=model.tiles[detail_index];bool waiting=t.awaiting_action(esphome::millis());
    for(unsigned i=0;i<detail_action_count;++i){if(waiting||!fresh()||!t.available())lv_obj_add_state(detail_actions[i],LV_STATE_DISABLED);else lv_obj_remove_state(detail_actions[i],LV_STATE_DISABLED);}
    std::string status=waiting?(t.confirmed?"Confirmed by Home Assistant":"Command sent..."):detail_state(t);
    if(detail_status)label(detail_status,status+(!waiting && !t.unit.empty()?" "+t.unit:""));
    // The vacuum card lays its state out with the room and battery beside it, so a new text draws the
    // card again; once Home Assistant answered, the new state says enough.
    if(detail_badge_status && t.domain()=="vacuum"){
      status=waiting && !t.confirmed?"Command sent...":detail_state(t);
      if(status!=lv_label_get_text(detail_badge_status))refresh_detail(detail_index);
    }else if(detail_badge_status)label(detail_badge_status,status);
    if(detail_switch && !lv_obj_has_state(detail_switch,LV_STATE_PRESSED)){
      if(t.state=="on")lv_obj_add_state(detail_switch,LV_STATE_CHECKED);
      else lv_obj_remove_state(detail_switch,LV_STATE_CHECKED);
    }
  }
  if(!enabled)return;
  // Only the cards that change are drawn again: a clock or a finished command redraws its own card.
  bool redraw=false;
  auto card=[&](size_t index){ if(index<32)dirty_tiles|=1u<<index; else dirty_all=true; redraw=true; };
  // HA dropping or returning and the feed timing out change every card at once.
  bool now_fresh=fresh();
  if(now_fresh!=was_fresh){was_fresh=now_fresh;dirty_all=true;redraw=true;}
  for(size_t i=0;i<model.tiles.size();++i){
    auto &t=model.tiles[i];if(!t.pending || t.loading(esphome::millis()))continue;
    t.pending=false;card(i);
    // A vacuum chip Home Assistant never confirmed goes back to what the robot reports.
    bool sent=false;if(auto *x=t.extra_ptr())for(auto &c:x->choices){sent=sent||!c.sent.empty();c.sent.clear();}
    if(sent)refresh_detail(i);
  }
  // A -/+ edit goes out as one call once the finger rests; a value HA never reports is dropped after a while.
  for(size_t i=0;i<model.count;++i){
    auto &t=model.tiles[i];if(!std::isfinite(t.edit_value))continue;
    uint32_t now=esphome::millis();
    if(!t.edit_sent){
      if(now-t.edit_since<700 || t.awaiting_action(now))continue;
      auto a=tile_controls::edit_action(t,t.edit_value);
      if(a.valid()){t.edit_sent=true;t.edit_since=now;action(a.service,t.entity,a.key,a.value);}else t.edit_value=NAN;
    }else if(now-t.edit_since>10000){t.edit_value=NAN;card(i);}
  }
  // Running timers advance once per second without any HA traffic; clocks show hours and minutes,
  // so they are drawn again only when the minute (or the time's validity) changes.
  uint32_t second=esphome::millis()/1000;
  if(second!=last_live_second){
    last_live_second=second;
    auto now=now_time?now_time():esphome::ESPTime{};
    int minute=now.is_valid()?now.day_of_year*1440+now.hour*60+now.minute:-1;
    bool new_minute=minute!=last_clock_minute;last_clock_minute=minute;
    for(size_t slot=0;slot<SLOTS_PER_PAGE;++slot){
      auto &w=widgets[slot];if(!w.tile || w.index>=model.count || lv_obj_has_flag(w.tile,LV_OBJ_FLAG_HIDDEN))continue;
      const auto &t=model.tiles[w.index];
      if((t.is_clock() && new_minute) || (t.domain()=="timer" && t.state=="active") || (t.domain()=="sun" && second%60==0))card(w.index);
      // The second hand moves on its own: only its line is redrawn, and it hides during standby.
      else if(w.parts[18] && w.points && t.is_clock() && t.display=="analog")second_hand(w,now);
    }
  }
  if(redraw && refresh)refresh();
}
inline std::string vacuum_option(unsigned index) {
  if (active_index < 0 || static_cast<size_t>(active_index) >= model.count) return {};
  auto &tile = model.tiles[active_index];
  const auto &speeds = tile.extra().fan_speeds;
  return index < speeds.size() ? speeds[index] : "";
}
}