homeassistant_espscreen/components/smart_display/tile_controls.h

#pragma once
// Direct controls on the right half of a double-width card, like Home Assistant's
// own entity rows. Pure logic only: which keys a card shows, what they send, how
// a -/+ step lands on the entity's grid, and the status line beside them. The
// LVGL drawing lives in runtime_tiles.h; tests/test_tile_controls.cpp covers this.
#include "runtime_model.h"
#include <array>
#include <cmath>
#include <cstdio>
#include <cstdlib>
#include <string>

namespace tile_controls {
// Home Assistant supported_features bits.
namespace feature {
constexpr uint32_t COVER_OPEN = 1, COVER_CLOSE = 2, COVER_POSITION = 4, COVER_STOP = 8;
constexpr uint32_t MEDIA_PAUSE = 1, MEDIA_VOLUME_SET = 4, MEDIA_VOLUME_MUTE = 8, MEDIA_PREVIOUS = 16, MEDIA_NEXT = 32, MEDIA_PLAY = 16384;
constexpr uint32_t VACUUM_TURN_ON = 1, VACUUM_TURN_OFF = 2, VACUUM_PAUSE = 4, VACUUM_STOP = 8, VACUUM_RETURN = 16, VACUUM_START = 8192;
}
// Material Design Icons glyphs the icon fonts carry (tile_icons.py FIXED).
namespace glyph {
constexpr const char *PLAY = "\U000F040A", *PAUSE = "\U000F03E4", *STOP = "\U000F04DB", *NEXT = "\U000F04AD", *PREVIOUS = "\U000F04AE";
constexpr const char *VOLUME = "\U000F057E", *MUTED = "\U000F0581", *UP = "\U000F005D", *DOWN = "\U000F0045";
constexpr const char *EXPAND = "\U000F084E", *COLLAPSE = "\U000F084C", *DOCK = "\U000F05F8", *PLUS = "\U000F0415", *MINUS = "\U000F0374";
constexpr const char *LEFT = "\U000F0141", *RIGHT = "\U000F0142", *CLOSE = "\U000F0156", *POWER = "\U000F0425", *FIRE = "\U000F0238";
constexpr const char *SNOWFLAKE = "\U000F0717", *HEAT_COOL = "\U000F1A79", *AUTO = "\U000F1B17", *DRY = "\U000F058E", *FAN = "\U000F0210";
}
enum Command {
  NONE = 0, COVER_OPEN, COVER_STOP, COVER_CLOSE, VACUUM_START, VACUUM_PAUSE, VACUUM_STOP, VACUUM_DOCK,
  MEDIA_PREVIOUS, MEDIA_PLAY_PAUSE, MEDIA_NEXT, MEDIA_MUTE, TIMER_START, TIMER_PAUSE, TIMER_CANCEL,
  HVAC_MODE, SELECT_PREVIOUS, SELECT_NEXT, RUN, TOGGLE, STEP_DOWN, STEP_UP
};
struct Key { const char *icon = ""; int command = NONE; std::string arg; bool checked = false, disabled = false; };
struct Action { std::string service, key, value; bool valid() const { return !service.empty(); } };
using runtime_tiles::Tile;

// Panel kinds: keys (a row of pill buttons), stepper (-/+ pill), slider, toggle, run.
inline bool is_key_row(const std::string &c) { return c == "buttons" || c == "mode" || c == "playback" || c == "chevrons"; }
inline bool is_slider(const std::string &c) { return c == "volume" || c == "brightness" || c == "speed" || c == "position" || c == "slider"; }
// A select's "stepper" is a pair of chevron keys; numbers and climate get the -/+ pill.
inline std::string panel_kind(const Tile &t) {
  auto c = t.controls, d = t.domain();
  if (c == "stepper" && (d == "select" || d == "input_select")) return "chevrons";
  return c;
}
inline bool has_mode(const std::string &hvac_modes, const char *mode) { return hvac_modes.find("\"" + std::string(mode) + "\"") != std::string::npos; }
inline const char *mode_icon(const std::string &mode) {
  if (mode == "off") return glyph::POWER;
  if (mode == "heat") return glyph::FIRE;
  if (mode == "cool") return glyph::SNOWFLAKE;
  if (mode == "heat_cool") return glyph::HEAT_COOL;
  if (mode == "auto") return glyph::AUTO;
  if (mode == "dry") return glyph::DRY;
  return glyph::FAN;
}
// Covers that move sideways get the horizontal arrows, like Home Assistant.
inline bool sideways_cover(const std::string &device_class) {
  return device_class == "curtain" || device_class == "awning" || device_class == "door" || device_class == "gate";
}
inline float numeric_state(const Tile &t) {
  char *end; float value = std::strtof(t.state.c_str(), &end);
  return end != t.state.c_str() && std::isfinite(value) ? value : NAN;
}
// Value the -/+ pill edits: the climate setpoint or the number itself.
inline float edit_target(const Tile &t) { return t.domain() == "climate" ? t.target : numeric_state(t); }
inline float edit_step(const Tile &t) {
  float step = t.step;
  if (!std::isfinite(step) || step <= 0) step = t.domain() == "climate" ? 0.5f : 1.0f;
  return step;
}
// One step up or down, snapped to the entity's grid and kept inside its range.
inline float step_value(float current, float step, float minimum, float maximum, int direction) {
  if (!std::isfinite(step) || step <= 0) step = 1;
  bool has_min = std::isfinite(minimum), has_max = std::isfinite(maximum) && (!has_min || maximum >= minimum);
  float origin = has_min ? minimum : 0;
  if (!std::isfinite(current)) current = has_min ? minimum : 0;
  float next = origin + std::round((current + direction * step - origin) / step) * step;
  if (has_min) next = std::fmax(next, minimum);
  if (has_max) next = std::fmin(next, maximum);
  return next;
}
// Whole degrees when the entity steps by whole units, one decimal otherwise.
inline std::string format_value(float value, float step, const char *suffix) {
  if (!std::isfinite(value)) return "--";
  char b[24]; snprintf(b, sizeof(b), step >= 1 ? "%.0f%s" : "%.1f%s", value, suffix); return b;
}
inline const char *climate_mode_text(const std::string &mode) {
  if (mode == "off") return "Off";
  if (mode == "heat") return "Heat";
  if (mode == "cool") return "Cool";
  if (mode == "heat_cool") return "Heat/Cool";
  if (mode == "auto") return "Auto";
  if (mode == "dry") return "Dry";
  if (mode == "fan_only") return "Fan only";
  return mode.c_str();
}
inline const char *climate_action_text(const std::string &action) {
  if (action == "heating") return "Heating";
  if (action == "cooling") return "Cooling";
  if (action == "idle") return "Idle";
  if (action == "off") return "Off";
  if (action == "drying") return "Drying";
  if (action == "fan") return "Fan";
  if (action == "preheating") return "Preheating";
  if (action == "defrosting") return "Defrosting";
  return "";
}
inline const char *cover_state_text(const std::string &state) {
  if (state == "open") return "Open";
  if (state == "closed") return "Closed";
  if (state == "opening") return "Opening";
  if (state == "closing") return "Closing";
  return state.c_str();
}
inline const char *media_state_text(const std::string &state) {
  if (state == "playing") return "Playing";
  if (state == "paused") return "Paused";
  if (state == "idle") return "Idle";
  if (state == "standby") return "Standby";
  if (state == "buffering") return "Loading";
  if (state == "on") return "On";
  if (state == "off") return "Off";
  return state.c_str();
}
// Status line beside a control panel: what Home Assistant shows under the name.
inline std::string status_text(const Tile &t) {
  auto d = t.domain(); char b[48];
  if (d == "climate") {
    std::string text = climate_action_text(t.hvac_action);
    if (text.empty()) text = climate_mode_text(t.state);
    if (std::isfinite(t.current)) { snprintf(b, sizeof(b), " · %.1f°", t.current); text += b; }
    return text;
  }
  if (d == "cover") {
    std::string text = cover_state_text(t.state);
    if (std::isfinite(t.position)) { snprintf(b, sizeof(b), " · %d%%", (int) std::lround(t.position)); text += b; }
    return text;
  }
  if (d == "media_player") {
    std::string text = (t.state == "playing" || t.state == "paused") && !t.media_title.empty() ? t.media_title : media_state_text(t.state);
    if (std::isfinite(t.volume) && (t.supported & feature::MEDIA_VOLUME_SET)) { snprintf(b, sizeof(b), " · %d%%", (int) std::lround(t.volume * 100)); text += b; }
    return text;
  }
  return {};
}
// The row of up to three pill keys for a key-row panel; returns how many.
inline unsigned keys_for(const Tile &t, std::array<Key, 3> &out) {
  auto d = t.domain(); auto c = panel_kind(t); unsigned n = 0;
  auto add = [&](const char *icon, int command, bool disabled = false, bool checked = false, const std::string &arg = "") {
    if (n < out.size()) out[n++] = Key{icon, command, arg, checked, disabled};
  };
  if (c == "buttons" && d == "cover") {
    bool sideways = sideways_cover(t.device_class);
    bool fully_open = std::isfinite(t.position) ? t.position >= 99.5f : t.state == "open";
    bool fully_closed = std::isfinite(t.position) ? t.position <= 0.5f : t.state == "closed";
    if (t.supported & feature::COVER_OPEN) add(sideways ? glyph::EXPAND : glyph::UP, COVER_OPEN, fully_open && t.state != "closing");
    if (t.supported & feature::COVER_STOP) add(glyph::STOP, COVER_STOP);
    if (t.supported & feature::COVER_CLOSE) add(sideways ? glyph::COLLAPSE : glyph::DOWN, COVER_CLOSE, fully_closed && t.state != "opening");
  } else if (c == "buttons" && d == "vacuum") {
    bool cleaning = t.state == "cleaning";
    if (cleaning && (t.supported & feature::VACUUM_PAUSE)) add(glyph::PAUSE, VACUUM_PAUSE);
    else if (cleaning && (t.supported & feature::VACUUM_TURN_OFF) && !(t.supported & feature::VACUUM_START)) add(glyph::PAUSE, VACUUM_STOP);
    else if (t.supported & (feature::VACUUM_START | feature::VACUUM_TURN_ON)) add(glyph::PLAY, VACUUM_START, cleaning);
    if (t.supported & feature::VACUUM_STOP) add(glyph::STOP, VACUUM_STOP, !cleaning && t.state != "returning");
    if (t.supported & feature::VACUUM_RETURN) add(glyph::DOCK, VACUUM_DOCK, t.state == "docked" || t.state == "returning");
  } else if (c == "buttons" && d == "timer") {
    bool active = t.state == "active";
    add(active ? glyph::PAUSE : glyph::PLAY, active ? TIMER_PAUSE : TIMER_START);
    add(glyph::CLOSE, TIMER_CANCEL, t.state == "idle");
  } else if (c == "playback") {
    if (t.supported & feature::MEDIA_PREVIOUS) add(glyph::PREVIOUS, MEDIA_PREVIOUS);
    if (t.supported & (feature::MEDIA_PLAY | feature::MEDIA_PAUSE)) add(t.state == "playing" ? glyph::PAUSE : glyph::PLAY, MEDIA_PLAY_PAUSE);
    if (t.supported & feature::MEDIA_NEXT) add(glyph::NEXT, MEDIA_NEXT);
  } else if (c == "mode") {
    // Three keys fit beside the name; Home Assistant lists modes in device order.
    for (const char *mode : {"off", "heat", "cool", "heat_cool", "auto", "dry", "fan_only"})
      if (n < 3 && has_mode(t.hvac_modes, mode)) add(mode_icon(mode), HVAC_MODE, false, t.state == mode, mode);
  } else if (c == "chevrons") {
    add(glyph::LEFT, SELECT_PREVIOUS, t.option_count < 2);
    add(glyph::RIGHT, SELECT_NEXT, t.option_count < 2);
  }
  return n;
}
inline std::string neighbour_option(const Tile &t, int direction) {
  if (!t.option_count) return {};
  int current = 0;
  for (unsigned i = 0; i < t.option_count; ++i) if (t.options[i] == t.state) current = i;
  int next = (current + direction + (int) t.option_count) % (int) t.option_count;
  return t.options[next];
}
inline const char *run_label(const std::string &domain) {
  if (domain == "scene") return "Activate";
  if (domain == "script") return "Run";
  return "Press";
}
// The Home Assistant action behind a key. STEP_* are handled locally (debounced) and return nothing.
inline Action key_action(const Tile &t, int command, const std::string &arg = "") {
  auto d = t.domain();
  switch (command) {
    case COVER_OPEN: return {"cover.open_cover", "", ""};
    case COVER_STOP: return {"cover.stop_cover", "", ""};
    case COVER_CLOSE: return {"cover.close_cover", "", ""};
    case VACUUM_START: return {(t.supported & feature::VACUUM_START) ? "vacuum.start" : "vacuum.turn_on", "", ""};
    case VACUUM_PAUSE: return {"vacuum.pause", "", ""};
    case VACUUM_STOP: return {(t.supported & feature::VACUUM_STOP) ? "vacuum.stop" : "vacuum.turn_off", "", ""};
    case VACUUM_DOCK: return {"vacuum.return_to_base", "", ""};
    case MEDIA_PREVIOUS: return {"media_player.media_previous_track", "", ""};
    case MEDIA_PLAY_PAUSE: return {"media_player.media_play_pause", "", ""};
    case MEDIA_NEXT: return {"media_player.media_next_track", "", ""};
    case MEDIA_MUTE: return {"media_player.volume_mute", "is_volume_muted", t.muted ? "false" : "true"};
    case TIMER_START: return {"timer.start", "", ""};
    case TIMER_PAUSE: return {"timer.pause", "", ""};
    case TIMER_CANCEL: return {"timer.cancel", "", ""};
    case HVAC_MODE: return arg.empty() ? Action{} : Action{"climate.set_hvac_mode", "hvac_mode", arg};
    case SELECT_PREVIOUS: case SELECT_NEXT: {
      std::string option = neighbour_option(t, command == SELECT_NEXT ? 1 : -1);
      return option.empty() ? Action{} : Action{d + ".select_option", "option", option};
    }
    case RUN:
      if (d == "scene" || d == "script") return {d + ".turn_on", "", ""};
      if (d == "button" || d == "input_button") return {d + ".press", "", ""};
      return {};
    case TOGGLE:
      if (d == "light" || d == "switch" || d == "input_boolean" || d == "fan") return {d + (t.state == "on" ? ".turn_off" : ".turn_on"), "", ""};
      return {};
    default: return {};
  }
}
// The debounced -/+ edit lands as one service call.
inline Action edit_action(const Tile &t, float value) {
  if (!std::isfinite(value)) return {};
  char b[24]; snprintf(b, sizeof(b), "%.2f", value);
  std::string text = b;
  while (text.size() > 1 && text.back() == '0') text.pop_back();
  if (text.back() == '.') text.pop_back();
  auto d = t.domain();
  if (d == "climate") return {"climate.set_temperature", "temperature", text};
  if (d == "number" || d == "input_number") return {d + ".set_value", "value", text};
  return {};
}
}  // namespace tile_controls