Files
homeassistant_espscreen/screen_manager/app/core.py
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Max Gramser f60eed3ff6 Make daily traffic scale to dozens of screens: incremental sync, ping keepalive, one action per message (0.2.39)
App 0.2.39 / firmware 0.2.33, items 1, 2, 4, 5 and 6 of the 30-screen scaling check.

- Only the tiles (and top bar) of changed entities are rebuilt; the screen list is
  cached until the registry or a screen diagnostic changes; the SSE stream follows.
- Sensor history comes from one recorder/statistics_during_period call per window in
  a background task, with the REST history as fallback per sensor without statistics.
- Firmware 0.2.33 answers a keepalive ping with its layout revision; a mismatch or a
  restart asks for the layout again, everything is repeated hourly as a safety net.
- The screen_message API action takes one whole message; the text inbox chunks stay
  as fallback for older firmware. A repeated unchanged layout keeps the inbox state.
- Quiet diagnostics: Opgestart (uptime as timestamp) replaces Uptime, heap every
  5 min, setting numbers publish only on change.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
2026-09-14 21:06:45 +02:00

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"""Pure validation, firmware generation and bounded display protocol."""
import base64
from datetime import datetime, timedelta, timezone
import hashlib
import json
import math
import re
import secrets
import tile_icons
DOMAINS = frozenset('light switch input_boolean scene script climate vacuum fan cover sensor binary_sensor input_select select number input_number weather media_player button input_button sun timer person screen'.split())
# Built-in cards without a Home Assistant entity; firmware 0.2.14+ renders them.
BUILTIN = {'screen.clock': 'Klok'}
NEW_DOMAINS = frozenset('sun timer person screen'.split())
WEEKDAYS = ['ma', 'di', 'wo', 'do', 'vr', 'za', 'zo']
REPO = 'https://github.com/MaxGramser/homeassistant_espscreen'
REFS = {'cyd': 'main', 'guition': 'main'}
# Firmware shipped with this app release; screens below it get an update offer.
FIRMWARE_VERSION = '0.2.33'
ATTRS = frozenset('brightness percentage current_position current_temperature temperature current_humidity min_temp max_temp target_temp_step supported_color_modes hvac_modes hvac_action hs_color color_temp_kelvin min_color_temp_kelvin max_color_temp_kelvin fan_speed_list unit_of_measurement battery_level fan_speed volume_level is_volume_muted media_title options min max step temperature_unit supported_features device_class next_rising next_setting finishes_at duration remaining humidity wind_speed wind_speed_unit apparent_temperature fan_modes swing_modes fan_mode swing_mode'.split())
# Attributes whose boolean value the screen needs; every other bool stays behind.
BOOL_ATTRS = frozenset(['is_volume_muted'])
TILE_BACKGROUNDS = {
'auto': {'label': 'Standaard', 'color': None},
# No card behind the tile: contents keep their size and place on the screen background.
'none': {'label': 'Geen', 'color': None},
'red': {'label': 'Rood', 'color': '#FADADD'},
'orange': {'label': 'Oranje', 'color': '#FFE1C6'},
'yellow': {'label': 'Geel', 'color': '#FFF0C2'},
'green': {'label': 'Groen', 'color': '#D9EEDC'},
'mint': {'label': 'Mint', 'color': '#D5F0EA'},
'blue': {'label': 'Blauw', 'color': '#D9EAFB'},
'purple': {'label': 'Paars', 'color': '#E9DDF5'},
'pink': {'label': 'Roze', 'color': '#F7DDEC'},
'gray': {'label': 'Grijs', 'color': '#E5E7EB'},
}
# Display modes per domain; everything else offers standard and watch (large value).
DISPLAYS = {'weather': ('standard', 'watch', 'forecast'), 'sensor': ('standard', 'watch', 'graph'), 'screen': ('digital', 'analog'), 'sun': ('standard', 'watch', 'sunpath')}
# Displays that only work on a double-width card.
WIDE_ONLY = ('forecast', 'sunpath')
# Grid positions: two columns, three rows per page, at most eight pages. A tile's
# `slot` is its absolute cell (page * 6 + row * 2 + column); a wide tile starts in
# the left column and also covers the cell to its right. Empty cells are allowed.
SLOTS_PER_PAGE = 6
MAX_PAGES = 8
MAX_SLOTS = MAX_PAGES * SLOTS_PER_PAGE
def is_wide(tile):
return tile.get('options', {}).get('size') == 'wide'
def footprint(slot, wide):
return (slot, slot + 1) if wide else (slot,)
def pack_slots(tiles):
"""In-order packing, the rule before explicit positions and what firmware without
`slots` still does: fill left to right, a wide card starts a new row."""
position, slots = 0, []
for tile in tiles:
wide = is_wide(tile)
if wide and position % 2:
position += 1
slots.append(position)
position += 2 if wide else 1
return slots
def has_gaps(tiles):
"""True when the stored positions differ from the in-order packing, so firmware
before 0.2.26 (which ignores `slots`) would show another arrangement."""
return [t.get('slot') for t in tiles] != pack_slots(tiles)
# Direct controls on the right half of a double-width card (firmware 0.2.19+), like
# Home Assistant's own entity rows. The first choice is what a wide card shows
# when the tile has no explicit choice; 'none' keeps the plain card.
CONTROLS = {
'climate': (('setpoint', 'Temperatuur − / +'), ('mode', 'Uit, verwarmen, koelen')),
'switch': (('toggle', 'Aan/uit-schakelaar'),),
'input_boolean': (('toggle', 'Aan/uit-schakelaar'),),
'light': (('toggle', 'Aan/uit-schakelaar'), ('brightness', 'Helderheidsschuif')),
'fan': (('toggle', 'Aan/uit-schakelaar'), ('speed', 'Snelheidsschuif')),
'vacuum': (('buttons', 'Start, stop, naar dock'),),
'cover': (('buttons', 'Open, stop, dicht'), ('position', 'Positieschuif')),
'media_player': (('volume', 'Volume en dempen'), ('playback', 'Vorige, play/pauze, volgende')),
'number': (('stepper', 'Waarde − / +'), ('slider', 'Schuif')),
'input_number': (('stepper', 'Waarde − / +'), ('slider', 'Schuif')),
'select': (('stepper', 'Vorige / volgende keuze'),),
'input_select': (('stepper', 'Vorige / volgende keuze'),),
'timer': (('buttons', 'Start/pauze en annuleren'),),
'scene': (('run', 'Knop Activeren'),),
'script': (('run', 'Knop Uitvoeren'),),
'button': (('run', 'Knop Indrukken'),),
'input_button': (('run', 'Knop Indrukken'),),
}
def controls_catalogue():
"""Editor choices per domain: the default first, then 'none'."""
return {domain: {'default': choices[0][0], 'choices': [{'key': key, 'label': label} for key, label in choices] + [{'key': 'none', 'label': 'Geen'}]}
for domain, choices in CONTROLS.items()}
def resolve_controls(tile):
"""Control set a card shows on the screen, or None: only wide cards in the standard layout have room for one."""
options = tile.get('options', {})
domain = tile['entity'].split('.')[0]
if domain not in CONTROLS or options.get('size') != 'wide' or options.get('display', 'standard') != 'standard' or options.get('inline') == 'slider':
return None
choice = options.get('controls', CONTROLS[domain][0][0])
return None if choice == 'none' else choice
# Diagnostic entities every ESP Screens firmware exposes; the manager watches them for screens.
SCREEN_ENTITY_NAMES = frozenset({'Tegelinstellingen', 'Schermfirmware', 'Guition schermtype', 'Apparaatnaam', 'IP-adres'})
# Additive schema 1 extension. An absent object retains old firmware/YAML defaults.
SETTING_RULES = {
'standby_enabled': (True, None, None),
'standby_seconds': (600, 60, 86400),
'brightness': (100, 5, 100),
'standby_brightness': (20, 0, 100),
'night_enabled': (True, None, None),
'night_start': (1320, 0, 1439),
'night_end': (420, 0, 1439),
'night_brightness': (10, 0, 100),
'show_clock': (True, None, None),
'clock_24h': (True, None, None),
'home_on_standby': (False, None, None),
'swipe_pages': (False, None, None),
'rotation': (0, 0, 270),
}
def validate_settings(data):
if not isinstance(data, dict) or set(data) - SETTING_RULES.keys():
raise ValueError('Onbekende scherminstellingen; vernieuw de beheerpagina.')
clean = {}
for key, (default, minimum, maximum) in SETTING_RULES.items():
value = data.get(key, default)
if minimum is None:
valid = type(value) is bool
else:
valid = type(value) is int and minimum <= value <= maximum
if key == "rotation": valid = valid and value in (0, 90, 180, 270)
if not valid:
raise ValueError(f'Ongeldige waarde voor {key}.')
clean[key] = value
if max(clean['standby_brightness'], clean['night_brightness']) > clean['brightness']:
raise ValueError('Helderheid in standby en nacht mag niet hoger zijn dan normaal.')
return clean
def entity_id(value):
if not (isinstance(value, str) and len(value) <= 120 and re.fullmatch(r'[a-z0-9_]+\.[a-z0-9_]+', value)):
return False
return value in BUILTIN if value.startswith('screen.') else value.split('.')[0] in DOMAINS
# ----- Top bar (firmware 0.2.32+): the screen name on the left, up to six items on the right.
# Without a `header` the screen keeps its name and the clock of `show_clock`. -----
HEADER_MIN_FIRMWARE = (0, 2, 32)
# Firmware 0.2.33+ takes a whole message in one API action (esphome.<node>_screen_message)
# and answers a keepalive ping with its layout revision; older firmware gets base64
# chunks in the text inbox and a full repeat every keepalive.
TRANSPORT_MIN_FIRMWARE = (0, 2, 33)
MESSAGE_ACTION = 'screen_message'
HEADER_MAX_ITEMS = 6
# Items the screen draws on its own clock, without Home Assistant.
HEADER_BUILTIN = {'clock': 'Tijd', 'analog': 'Analoge klok', 'date': 'Datum'}
# Only shown, never controlled: the top bar takes these besides every tile domain.
HEADER_ONLY_DOMAINS = frozenset('device_tracker zone lock alarm_control_panel counter event input_datetime input_text water_heater humidifier'.split())
HEADER_CONTENTS = ('state', 'last_changed')
HEADER_SHOWS = ('always', 'active')
def header_entity(value):
return (isinstance(value, str) and len(value) <= 120 and re.fullmatch(r'[a-z0-9_]+\.[a-z0-9_]+', value) is not None
and value.split('.')[0] in (DOMAINS - {'screen'}) | HEADER_ONLY_DOMAINS)
def header_items(layout):
"""Items the top bar shows: the stored ones, else what firmware before the top bar drew (the clock)."""
if 'header' in layout:
return layout['header']['items']
return [{'type': 'clock'}] if layout.get('settings', {}).get('show_clock', True) else []
def validate_header(data):
if not isinstance(data, dict) or set(data) - {'items'} or not isinstance(data.get('items'), list):
raise ValueError('Ongeldige bovenbalk; vernieuw de beheerpagina.')
if len(data['items']) > HEADER_MAX_ITEMS:
raise ValueError(f'De bovenbalk heeft plaats voor maximaal {HEADER_MAX_ITEMS} onderdelen.')
items, seen = [], set()
for item in data['items']:
kind = item.get('type') if isinstance(item, dict) else None
if kind in HEADER_BUILTIN:
if set(item) != {'type'}:
raise ValueError('Ongeldige instelling in de bovenbalk.')
clean = {'type': kind}
elif kind == 'entity':
if set(item) - {'type', 'entity', 'content', 'icon', 'show'}:
raise ValueError('Onbekende instelling in de bovenbalk; vernieuw de beheerpagina.')
if not header_entity(item.get('entity')):
raise ValueError('Deze entiteit kan niet in de bovenbalk.')
clean = {'type': 'entity', 'entity': item['entity'], 'content': item.get('content', 'state'),
'icon': item.get('icon', 'auto'), 'show': item.get('show', 'always')}
if clean['content'] not in HEADER_CONTENTS or clean['show'] not in HEADER_SHOWS:
raise ValueError('Ongeldige instelling in de bovenbalk.')
if not (clean['icon'] in ('auto', 'none') or isinstance(clean['icon'], str) and clean['icon'] in tile_icons.ICONS):
raise ValueError('Kies een icoon uit de lijst.')
else:
raise ValueError('Onbekend onderdeel in de bovenbalk; vernieuw de beheerpagina.')
key = json.dumps(clean, sort_keys=True)
if key in seen:
raise ValueError('Dit onderdeel staat al in de bovenbalk.')
seen.add(key)
items.append(clean)
return {'items': items}
def min_firmware(layout):
"""Oldest firmware that still accepts this layout; None when any version works."""
if any(t.get('options', {}).get('background') == 'none' for t in layout['tiles']):
return (0, 2, 16)
if any(t['entity'].split('.')[0] in NEW_DOMAINS for t in layout['tiles']):
return (0, 2, 14)
if len(layout['tiles']) > 10:
return (0, 2, 7)
return None
def short(value, limit):
return str(value).encode('utf-8')[:limit].decode('utf-8', errors='ignore')
def validate_layout(data):
if not isinstance(data, dict):
raise ValueError('Ongeldige indeling.')
title, tiles = data.get('title'), data.get('tiles')
if not isinstance(title, str) or not title.strip() or len(title.encode()) > 96:
raise ValueError('Geef het scherm een titel van maximaal 96 bytes.')
if not isinstance(tiles, list) or len(tiles) > 20:
raise ValueError('Kies maximaal 20 tegels.')
clean, seen = [], set()
for tile in tiles:
if not isinstance(tile, dict) or not entity_id(tile.get('entity')):
raise ValueError('Deze entiteit wordt niet ondersteund.')
if tile['entity'] in seen:
raise ValueError('Een entiteit kan maar één keer op een scherm staan.')
name = tile.get('name', '')
if not isinstance(name, str) or len(name.encode()) > 80:
raise ValueError('Een tegelnaam mag maximaal 80 bytes bevatten.')
seen.add(tile['entity'])
item = {'entity': tile['entity'], 'name': name.strip()}
if 'options' in tile:
options = tile['options']
if not isinstance(options, dict) or set(options) - {'tap', 'display', 'inline', 'history_hours', 'background', 'size', 'icon', 'controls'}:
raise ValueError('Onbekende tegelinstellingen.')
if 'background' in options and (not isinstance(options['background'],str) or options['background'] not in TILE_BACKGROUNDS):
raise ValueError('Kies een pastel achtergrondkleur uit het palet.')
if 'icon' in options and not (options['icon'] == 'auto' or isinstance(options['icon'], str) and options['icon'] in tile_icons.ICONS):
raise ValueError('Kies een icoon uit de lijst.')
domain = tile['entity'].split('.')[0]
displays = DISPLAYS.get(domain, ('standard', 'watch'))
choices = {'tap': ('auto', 'detail', 'toggle', 'none'), 'display': displays, 'inline': ('none', 'slider'), 'size': ('single', 'wide')}
for key, allowed in choices.items():
if key in options and options[key] not in allowed:
raise ValueError('Ongeldige tegelinstelling: ' + key)
# The five-day strip and the sun path only fit a double-width card.
if options.get('display') in WIDE_ONLY:
options = {**options, 'size': 'wide'}
if options.get('tap') == 'toggle' and domain not in {'light','switch','input_boolean','fan','media_player','climate'}:
raise ValueError('Deze entiteit ondersteunt geen aan/uit-actie.')
if options.get('inline') == 'slider' and domain not in {'light','fan','cover','number','input_number','media_player'}:
raise ValueError('Deze entiteit ondersteunt geen mini-schuif.')
if 'history_hours' in options and (type(options['history_hours']) is not int or options['history_hours'] not in (1,6,24)):
raise ValueError('Geschiedenis: kies 1, 6 of 24 uur.')
if options.get('display') == 'watch' and options.get('inline') == 'slider':
raise ValueError('Kies grote waarde of mini-schuif.')
if 'controls' in options:
allowed = ('none',) + tuple(key for key, _ in CONTROLS.get(domain, ()))
if not isinstance(options['controls'], str) or options['controls'] not in allowed:
raise ValueError('Deze entiteit ondersteunt die directe bediening niet.')
item['options'] = dict(options)
clean.append(item)
# Positions: every tile or none (an older editor sends none and keeps its order).
given = [tile.get('slot') for tile in tiles]
if any(slot is not None for slot in given):
occupied = set()
for item, slot in zip(clean, given):
if type(slot) is not int or not 0 <= slot < MAX_SLOTS:
raise ValueError('Ongeldige tegelpositie; vernieuw de beheerpagina.')
if is_wide(item) and slot % 2:
raise ValueError('Een dubbelbrede tegel begint in de linkerkolom.')
for cell in footprint(slot, is_wide(item)):
if cell in occupied:
raise ValueError('Twee tegels staan op dezelfde plek.')
occupied.add(cell)
item['slot'] = slot
clean.sort(key=lambda item: item['slot'])
else:
for item, slot in zip(clean, pack_slots(clean)):
item['slot'] = slot
result = {'title': title.strip(), 'tiles': clean}
# Pages kept on purpose, empty ones included; the screen shows at least what the tiles need.
if 'pages' in data:
if type(data['pages']) is not int or not 1 <= data['pages'] <= MAX_PAGES:
raise ValueError(f'Een scherm heeft 1 tot {MAX_PAGES} pagina\'s.')
result['pages'] = data['pages']
if 'settings' in data:
result['settings'] = validate_settings(data['settings'])
if 'header' in data:
result['header'] = validate_header(data['header'])
return result
def local_clock(value, tz):
"""HH:MM in the home's time zone for an ISO timestamp; '' when unusable."""
try:
moment = datetime.fromisoformat(str(value).replace('Z', '+00:00'))
except (ValueError, TypeError):
return ''
if moment.tzinfo is None:
moment = moment.replace(tzinfo=timezone.utc)
return moment.astimezone(tz or timezone.utc).strftime('%H:%M')
def forecast_number(entry, name):
value = entry.get(name)
return round(value, 1) if isinstance(value, (int, float)) and not isinstance(value, bool) and math.isfinite(value) else None
def forecast_time(entry, tz):
try:
return datetime.fromisoformat(str(entry.get('datetime')).replace('Z', '+00:00')).astimezone(tz or timezone.utc)
except (ValueError, TypeError):
return None
def epoch(value):
"""Unix time of an ISO timestamp (a scene's state, a script's last_triggered); None when unusable."""
try:
moment = datetime.fromisoformat(str(value).replace('Z', '+00:00'))
except (ValueError, TypeError):
return None
if moment.tzinfo is None:
moment = moment.replace(tzinfo=timezone.utc)
return int(moment.timestamp())
def extras(tile, states, forecast=None, tz=None, hourly=None, now=None):
"""Small, pre-computed values the firmware cannot derive itself (time zones, forecasts)."""
domain = tile['entity'].split('.')[0]
attrs = states.get(tile['entity'], {}).get('attributes', {})
if domain == 'weather' and (forecast or hourly):
result = {}
days = []
for entry in forecast or []:
if not isinstance(entry, dict) or len(days) == 5:
continue
day = forecast_time(entry, tz)
if day is None:
continue
item = {'d': WEEKDAYS[day.weekday()], 'c': short(entry.get('condition') or '', 20)}
# h/l: high and low; p: chance of rain in %; r: rain in the entity's unit (mm).
for key, name in (('h', 'temperature'), ('l', 'templow'), ('p', 'precipitation_probability'), ('r', 'precipitation')):
value = forecast_number(entry, name)
if value is not None:
item[key] = value
days.append(item)
if days:
result['days'] = days
# The next eight hours from now, for the weather card's hourly strip.
hours = []
# The running hour still counts: an entry stays until its hour has passed.
start = (now or datetime.now(timezone.utc)) - timedelta(minutes=59)
for entry in hourly or []:
if not isinstance(entry, dict) or len(hours) == 8:
continue
moment = forecast_time(entry, tz)
if moment is None or moment < start:
continue
item = {'t': moment.strftime('%H:%M'), 'c': short(entry.get('condition') or '', 20)}
for key, name in (('h', 'temperature'), ('p', 'precipitation_probability'), ('r', 'precipitation')):
value = forecast_number(entry, name)
if value is not None:
item[key] = value
hours.append(item)
if hours:
result['hours'] = hours
return result or None
if domain in ('scene', 'script', 'button', 'input_button'):
# When it last ran: scripts report last_triggered; scenes and buttons carry the time as their state.
last = epoch(attrs.get('last_triggered') if domain == 'script' else states.get(tile['entity'], {}).get('state'))
return {'last': last} if last else None
if domain == 'sun':
rise, down = local_clock(attrs.get('next_rising'), tz), local_clock(attrs.get('next_setting'), tz)
return {'rise': rise, 'set': down} if rise or down else None
if domain == 'timer':
result = {}
try:
end = datetime.fromisoformat(str(attrs.get('finishes_at')).replace('Z', '+00:00'))
result['end'] = int(end.timestamp())
except (ValueError, TypeError):
pass
for key, name in (('dur', 'duration'), ('rem', 'remaining')):
if isinstance(attrs.get(name), str):
result[key] = short(attrs[name], 16)
return result or None
return None
def tile_icon(tile, attrs):
"""Codepoint the screen shows: the chosen icon, else HA's own mdi icon; None keeps the firmware default."""
choice = tile.get('options', {}).get('icon', 'auto')
return tile_icons.ICONS[choice][0] if choice in tile_icons.ICONS else tile_icons.ha_icon(attrs)
def screen_options(tile, attrs):
"""Stored options on the wire; `icon` travels as the resolved codepoint (firmware 0.2.18+, ignored before)
and `controls` only as the set the card really shows (firmware 0.2.19+, ignored before)."""
options = {k: v for k, v in tile.get('options', {}).items() if k not in ('icon', 'controls')}
icon = tile_icon(tile, attrs)
if icon:
options['icon'] = icon
controls = resolve_controls(tile)
if controls:
options['controls'] = controls
return options if options or 'options' in tile else None
def state_message(index, tile, states, extra=None):
if tile['entity'] in BUILTIN:
message = {'v': 1, 'op': 'state', 'i': index, 'entity': tile['entity'],
'name': short(tile['name'] or BUILTIN[tile['entity']], 80), 'state': 'ok', 'a': {}}
if 'options' in tile:
message['o'] = tile['options']
return message
state = states.get(tile['entity'], {})
attrs = state.get('attributes', {})
bounded = {}
for key in ATTRS:
value = attrs.get(key)
if isinstance(value, bool):
if key in BOOL_ATTRS:
bounded[key] = value
continue
if value is None:
continue
if isinstance(value, (int, float)):
# supported_features is a bit field (media players exceed 8 million); other numbers are display values.
if math.isfinite(value) and abs(value) <= (2**31 if key == 'supported_features' else 1000000):
bounded[key] = value
elif isinstance(value, str):
bounded[key] = short(value, 48)
elif isinstance(value, list):
# Attribute lists have bounded lengths, strings and numeric ranges.
limit = 2 if key == 'hs_color' else 4 if key == 'fan_speed_list' else 8
bounded[key] = [short(v, 48) if isinstance(v, str) else v for v in value[:limit]
if isinstance(v, str) or isinstance(v, (float, int)) and math.isfinite(v) and abs(v) <= 1000000]
options = screen_options(tile, attrs)
return {'v': 1, 'op': 'state', 'i': index, 'entity': tile['entity'],
'name': short(tile['name'] or attrs.get('friendly_name') or tile['entity'], 80),
'state': short(state.get('state', 'unavailable'), 160), 'a': bounded,
**({'o': options} if options is not None else {}), **({'x': extra} if extra else {})}
def encode(message):
"""The message as the firmware parses it: compact JSON, at most 4096 bytes."""
raw = json.dumps(message, ensure_ascii=False, separators=(',', ':'), allow_nan=False)
if len(raw.encode()) > 4096:
raise ValueError('Het schermbericht is te groot.')
return raw
def revision(message):
"""Short fingerprint of a layout message; the screen echoes it back on every ping."""
return hashlib.sha256(json.dumps(message, sort_keys=True, separators=(',', ':')).encode()).hexdigest()[:12]
def packets(message, token=None):
"""The message as base64 chunks for the 255-character text inbox (firmware before 0.2.33)."""
encoded = base64.b64encode(encode(message).encode()).decode('ascii')
token = token or secrets.token_hex(8)
chunks = [encoded[i:i+200] for i in range(0, len(encoded), 200)]
return [f'{token}|{i}|{int(i == len(chunks)-1)}|{part}' for i, part in enumerate(chunks)]
def message_action(node):
"""Home Assistant action that hands a screen one whole message, or None without a node name."""
return alert_service(node, MESSAGE_ACTION)
# ----- Alerts (firmware 0.2.31+): the reference the cheatsheet shows. tests/test_alerts_reference.py
# keeps every value here equal to what the board profiles compile. -----
ALERT_MIN_FIRMWARE = '0.2.31'
ALERT_EVENT = 'esphome.screen_alert'
ALERT_ENDINGS = (('ok', 'De knop is ingedrukt'), ('timeout', 'De timeout is verstreken'),
('replaced', 'Een nieuwe alert kwam eroverheen'), ('remote', 'dismiss_alert vanuit Home Assistant'))
ALERT_FALLBACK_ICON = 'alert-outline'
# (field, ESPHome type, label, explanation, example) in the order Home Assistant shows them.
ALERT_FIELDS = (
('title', 'string', 'Titel', 'Eén regel bovenaan de kaart; wat niet past krijgt puntjes. Leeg wordt "Melding".', 'Iemand belt aan'),
('subtitle', 'string', 'Subtitle', 'Toelichting onder de titel, over meerdere regels; een regeleinde mag. Leeg mag.', 'Deur 3, achterkant'),
('icon', 'string', 'Icoon', 'Een naam uit de lijst, ook als mdi:naam of als hex-codepoint (F12E6). Onbekend of leeg geeft de waarschuwingsdriehoek.', 'doorbell'),
('color', 'string', 'Kleur', 'Een van de negen pastelkleuren van de tegels. Leeg geeft de witte kaart.', 'orange'),
('button_text', 'string', 'Knoptekst', 'De tekst op de knop. Leeg is "Oké".', 'Ik kom'),
('timeout', 'int', 'Timeout', 'Seconden waarna de kaart vanzelf verdwijnt. 0 wacht op de knop, hoe lang dat ook duurt. De knop sluit altijd direct, ook met een timeout.', 0),
('flash', 'bool', 'Knipperen', 'Aan laat de backlight vier keer knipperen als de alert binnenkomt; daarna blijft het scherm gewoon aan.', True),
)
# Bytes per field the firmware keeps (the profiles' ALERT_*_MAX); a Dutch letter with accent takes two.
ALERT_LIMITS = {'cyd': {'title': 48, 'subtitle': 160, 'button_text': 12}, 'guition': {'title': 64, 'subtitle': 240, 'button_text': 16}}
ALERT_SUGGESTED_ICONS = ('doorbell', 'bell', 'bell-ring', 'alert-outline', 'alarm-light', 'lock', 'lock-open-variant', 'door-open',
'window-closed-variant', 'motion-sensor', 'cctv', 'smoke-detector', 'water-alert', 'fire', 'mailbox', 'car',
'account', 'account-group', 'washing-machine', 'robot-vacuum', 'timer-outline', 'check')
def alert_service(node, action='show_alert'):
"""Home Assistant registers a device's actions as esphome.<node>_<action>, dashes as underscores."""
return f"esphome.{node.replace('-', '_')}_{action}" if isinstance(node, str) and node else None
def alert_reference():
"""Everything the Alerts cheatsheet shows besides the screens themselves."""
return {'min_firmware': ALERT_MIN_FIRMWARE, 'event': ALERT_EVENT,
'endings': [{'action': action, 'label': label} for action, label in ALERT_ENDINGS],
'fallback_icon': ALERT_FALLBACK_ICON, 'fallback_cp': tile_icons.GLYPHS[ALERT_FALLBACK_ICON],
'fields': [{'name': name, 'type': kind, 'label': label, 'help': help_, 'example': example} for name, kind, label, help_, example in ALERT_FIELDS],
'limits': ALERT_LIMITS,
'colors': [{'name': name, 'label': item['label'], 'color': item['color']} for name, item in TILE_BACKGROUNDS.items() if item['color']],
'suggested_icons': [{'name': name, 'cp': tile_icons.GLYPHS[name]} for name in ALERT_SUGGESTED_ICONS],
'extra_icons': [{'name': name, 'cp': cp} for name, cp in tile_icons.FIXED]}
def screen_items(registry):
"""The ESPHome entities that describe a screen; the subset `discover_screens` needs."""
return [item for item in registry if item.get('platform') == 'esphome' and item.get('original_name') in SCREEN_ENTITY_NAMES]
def discover_screens(registry, states, devices, areas):
"""Paired screens: every enabled ESPHome inbox with the diagnostics of its device."""
device_map = {d['id']: d for d in devices}
area_map = {a['area_id']: a['name'] for a in areas}
versions = {item.get('device_id'): states.get(item['entity_id'], {}).get('state', 'onbekend') for item in registry
if item.get('platform') == 'esphome' and item.get('original_name') == 'Schermfirmware'}
boards = {item.get("device_id"): "guition" for item in registry
if item.get("platform") == "esphome" and item.get("original_name") == "Guition schermtype"}
def diagnostic(name, pattern):
found = {}
for item in registry:
if item.get('platform') == 'esphome' and item.get('original_name') == name:
value = states.get(item['entity_id'], {}).get('state', '')
if isinstance(value, str) and re.fullmatch(pattern, value):
found[item.get('device_id')] = value
return found
nodes = diagnostic('Apparaatnaam', r'[a-z0-9][a-z0-9-]{0,30}')
addresses = diagnostic('IP-adres', r'\d{1,3}(\.\d{1,3}){3}')
screens = []
for item in registry:
eid = item['entity_id']
if not (item.get('platform') == 'esphome' and eid.startswith('text.') and item.get('original_name') == 'Tegelinstellingen' and not item.get('disabled_by')):
continue
device = device_map.get(item.get('device_id'), {})
state = states.get(eid, {})
area = area_map.get(item.get('area_id') or device.get('area_id'), '')
screens.append({'id': eid, 'name': device.get('name_by_user') or device.get('name') or eid,
'firmware': versions.get(item.get('device_id'), 'onbekend'),
'board': boards.get(item.get('device_id'), 'unknown'),
'node': nodes.get(item.get('device_id')), 'ip': addresses.get(item.get('device_id')),
'device': device.get('name') or '',
'area': area, 'online': state.get('state') not in (None, 'unknown', 'unavailable'),
'status': state.get('state', 'Niet verbonden')})
return screens
def discover(registry, states, devices, areas):
"""(screens, entities): the paired screens and every entity a tile or the top bar can show."""
device_map = {d['id']: d for d in devices}
area_map = {a['area_id']: a['name'] for a in areas}
screens = discover_screens(registry, states, devices, areas)
entities = []
for item in registry:
eid = item['entity_id']
tile = entity_id(eid)
if not (tile or header_entity(eid)) or item.get('disabled_by'):
continue
device = device_map.get(item.get('device_id'), {})
state = states.get(eid, {})
area = area_map.get(item.get('area_id') or device.get('area_id'), '')
entities.append({'id': eid, 'name': state.get('attributes', {}).get('friendly_name') or item.get('name') or item.get('original_name') or eid,
'device': device.get('name_by_user') or device.get('name') or '', 'area': area,
'state': state.get('state', 'unavailable'), 'icon': tile_icons.ha_icon(state.get('attributes')),
# Top-bar-only domains (a phone's tracker, a lock) stay out of the tile picker.
**({} if tile else {'tile': False})})
# YAML entities may not have an entity-registry entry.
registered = {e['id'] for e in entities}
in_registry = {r['entity_id'] for r in registry}
for eid, state in states.items():
tile = entity_id(eid)
if (tile or header_entity(eid)) and eid not in registered and eid not in in_registry:
entities.append({'id': eid, 'name': state.get('attributes', {}).get('friendly_name', eid), 'device': '', 'area': '', 'state': state['state'],
'icon': tile_icons.ha_icon(state.get('attributes')), **({} if tile else {'tile': False})})
return screens, sorted(entities, key=lambda e: e['name'].casefold())
def installation_yaml(data):
board, name, friendly = data.get('board'), data.get('name'), data.get('friendly_name')
if board not in REFS or not isinstance(name, str) or not re.fullmatch(r'[a-z][a-z0-9-]{0,29}', name):
raise ValueError('Kies een bord en een unieke naam (kleine letters, cijfers, streepjes; maximaal 30 tekens).')
if not isinstance(friendly, str) or not friendly.strip() or len(friendly) > 60:
raise ValueError('Geef het scherm een herkenbare naam (maximaal 60 tekens).')
quote = lambda s: json.dumps(s, ensure_ascii=False)
key, ota, ap = base64.b64encode(secrets.token_bytes(32)).decode(), secrets.token_urlsafe(24), secrets.token_urlsafe(12)
return f'''# Bewaar dit bestand: het bevat de unieke sleutels voor dit scherm.
# Wifi komt uit de secrets.yaml van ESPHome Device Builder.
substitutions:
DEVICE_NAME: {quote(name)}
DEVICE_FRIENDLY_NAME: {quote(friendly.strip())}
esphome:
name: {quote(name)}
friendly_name: {quote(friendly.strip())}
packages:
display:
url: {REPO}
ref: {REFS[board]}
files: [packages/{board}.yaml]
refresh: 0s
api:
encryption:
key: {quote(key)}
ota:
- platform: esphome
password: {quote(ota)}
wifi:
ssid: !secret wifi_ssid
password: !secret wifi_password
power_save_mode: none
ap:
ssid: {quote(name + ' Setup')}
password: {quote(ap)}
captive_portal:
'''