# Helper sensors for the EL512.256-H ESPHome display (esphome/el512-panel.yaml).
#
# Install: put this file in /config/packages/ and make sure configuration.yaml has
#
#   homeassistant:
#     packages: !include_dir_named packages
#
# then restart Home Assistant. All lists use the same compact text format so the
# ESP32 can split them cheaply: fields separated by "|", entries by ";".

template:
  # Forecast and agenda come from actions, so they refresh on a timer.
  - triggers:
      - trigger: time_pattern
        minutes: "/15"
      - trigger: homeassistant
        event: start
      - trigger: event
        event_type: event_template_reloaded
    actions:
      - action: weather.get_forecasts
        target:
          entity_id: weather.knmi_home
        data:
          type: daily
        response_variable: fc
      - action: calendar.get_events
        target:
          entity_id:
            - calendar.mangavalk_gmail_com
            - calendar.li_s_happy_home
            - calendar.feestdagen_in_nederland
        data:
          duration:
            days: 14
        response_variable: cal
    sensor:
      # days: "Sun|cloudy|12|11|0;Mon|partlycloudy|14|10|20;..."
      #        weekday|condition|high|low|rain chance %
      - name: EL512 forecast
        unique_id: el512_forecast
        icon: mdi:weather-partly-cloudy
        state: "{{ fc['weather.knmi_home'].forecast | count }}"
        attributes:
          days: >-
            {%- set ns = namespace(out=[]) -%}
            {%- for d in fc['weather.knmi_home'].forecast[:7] -%}
              {%- set ns.out = ns.out + [
                    (as_datetime(d.datetime) | as_local).strftime('%a') ~ '|' ~
                    d.condition ~ '|' ~
                    (d.temperature | round(0) | int) ~ '|' ~
                    (d.templow | default(d.temperature) | round(0) | int) ~ '|' ~
                    (d.precipitation_probability | default(0) | int)] -%}
            {%- endfor -%}
            {{ ns.out | join(';') }}

      # events: "Mon 19|11:00|Work;Tue 20||Holiday;..."
      #          day|start time (empty = all day)|title
      - name: EL512 agenda
        unique_id: el512_agenda
        icon: mdi:calendar
        state: >-
          {%- set ns = namespace(n=0) -%}
          {%- for c in cal.values() -%}{%- set ns.n = ns.n + c.events | count -%}{%- endfor -%}
          {{ ns.n }}
        attributes:
          events: >-
            {%- set ns = namespace(ev=[]) -%}
            {%- for c in cal.values() -%}
              {%- for e in c.events -%}{%- set ns.ev = ns.ev + [e] -%}{%- endfor -%}
            {%- endfor -%}
            {%- set out = namespace(items=[]) -%}
            {%- for e in (ns.ev | sort(attribute='start'))[:10] -%}
              {%- if e.start | length == 10 -%}
                {%- set day = strptime(e.start, '%Y-%m-%d').strftime('%a %d') -%}
                {%- set time = '' -%}
              {%- else -%}
                {%- set t = as_datetime(e.start) | as_local -%}
                {%- set day = t.strftime('%a %d') -%}
                {%- set time = t.strftime('%H:%M') -%}
              {%- endif -%}
              {%- set title = (e.summary | default('')) | replace('|', '/') | replace(';', ',') -%}
              {%- set out.items = out.items + [day ~ '|' ~ time ~ '|' ~ title[:40]] -%}
            {%- endfor -%}
            {{ out.items | join(';') }}

  # Whatever media player is playing right now; position advances every 5 s.
  - triggers:
      - trigger: time_pattern
        seconds: "/5"
    sensor:
      - name: EL512 now playing
        unique_id: el512_now_playing
        icon: mdi:play-circle
        state: >-
          {%- set p = states.media_player | selectattr('state', 'eq', 'playing') | list -%}
          {{ p[0].entity_id if p else 'idle' }}
        attributes:
          # "title|artist|album|player|position s|duration s"
          info: >-
            {%- set p = states.media_player | selectattr('state', 'eq', 'playing') | list -%}
            {%- if p -%}
              {%- set a = p[0].attributes -%}
              {%- set pos = a.media_position | default(0) -%}
              {%- if a.media_position_updated_at is defined and a.media_position_updated_at -%}
                {%- set pos = pos + (now() - as_datetime(a.media_position_updated_at)).total_seconds() -%}
              {%- endif -%}
              {%- set dur = a.media_duration | default(0) -%}
              {%- set pos = [pos, dur] | min if dur else pos -%}
              {{ [a.media_title | default(a.app_name | default('')), a.media_artist | default(a.media_series_title | default('')),
                  a.media_album_name | default(''), a.friendly_name | default(''), pos | int, dur | int]
                 | map('string') | map('replace', '|', '/') | join('|') }}
            {%- endif -%}

  # Plex streams with play/pause state and position, from the Plex integration's
  # media players (media_player.plex_*); position advances every 5 s. Without
  # any Plex players, falls back to the server sensor, which has one attribute
  # per stream ("user - client": "title") but no state or position.
  - triggers:
      - trigger: time_pattern
        seconds: "/5"
    sensor:
      - name: EL512 Plex streams
        unique_id: el512_plex_streams
        icon: mdi:plex
        state: "{{ states('sensor.mangavalkserver') }}"
        attributes:
          # "who|title|playing or paused|position s|duration s;..."
          # (fallback: "user - client|title;...")
          streams: >-
            {%- set ns = namespace(out=[]) -%}
            {%- for p in states.media_player
                  if p.entity_id.startswith('media_player.plex_') and p.state in ['playing', 'paused'] -%}
              {%- set a = p.attributes -%}
              {%- set pos = a.media_position | default(0) -%}
              {%- if p.state == 'playing' and a.media_position_updated_at is defined and a.media_position_updated_at -%}
                {%- set pos = pos + (now() - as_datetime(a.media_position_updated_at)).total_seconds() -%}
              {%- endif -%}
              {%- set dur = a.media_duration | default(0) -%}
              {%- set pos = [pos, dur] | min if dur else pos -%}
              {%- set title = a.media_title | default('') -%}
              {%- if a.media_series_title | default('') -%}
                {%- set title = a.media_series_title ~ ' - ' ~ title -%}
              {%- endif -%}
              {%- set who = a.username | default(a.friendly_name | default(p.entity_id)) -%}
              {%- set ns.out = ns.out + [[who, title, p.state, pos | int, dur | int]
                                         | map('string') | map('replace', '|', '/') | map('replace', ';', ',')
                                         | join('|')] -%}
            {%- endfor -%}
            {%- set s = states.sensor.mangavalkserver -%}
            {%- if not ns.out and s -%}
              {%- for k, v in s.attributes.items()
                    if k not in ['unit_of_measurement', 'friendly_name', 'icon', 'device_class', 'state_class'] -%}
                {%- set ns.out = ns.out + [(k | replace('|', '/') | replace(';', ',')) ~ '|' ~
                                           (v | string | replace('|', '/') | replace(';', ','))] -%}
              {%- endfor -%}
            {%- endif -%}
            {{ ns.out | join(';') }}