HA: timer on button

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### wymagania:
### 1. variable -> https://github.com/rogro82/hass-variables
### 2. button-card -> https://github.com/custom-cards/button-card
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### lowelas:
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- type: custom:button-card
  name: >
    [[[
      var temp_name = 'Testowy';
      if (states['timer.test_on'].state == 'active')
        var temp_name = states['sensor.test'].state;
      if (states['timer.test_delay'].state == 'active')
        var temp_name = states['sensor.test'].state;
      return temp_name;
    ]]]
  icon: >
    [[[
      var temp_delay = states['timer.test_delay'].state;
      var temp_icon = 'mdi:toggle-switch';
      if (temp_delay == 'active')
        var temp_icon = 'mdi:toggle-switch-off-outline';
      return temp_icon;
    ]]]
  entity: switch.test
  lock:
    enabled: '[[[ return states["timer.test_delay"].state === "active" ]]]'
    exemptions: []
  styles:
    lock:
      - align-items: center
      - opacity: 0.3
      - color: var(--label-badge-red)

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### konfig:
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variable:
  var_testowa:
    value: 'False'

sensor:
- platform: template
  sensors:
    test:
      entity_id:
      - timer.test_on
      - timer.test_delay
      value_template: >-
        {% if is_state('timer.test_on', 'idle') and is_state('timer.test_delay', 'idle') %}
          0
        {% elif is_state('timer.test_delay', 'active') %}
          {% set temp_delay = (state_attr('timer.test_delay', 'duration').split(':')[0]|int * 60 * 60)+(state_attr('timer.test_delay', 'duration').split(':')[1]|int * 60)+(state_attr('timer.test_delay', 'duration').split(':')[2]|int) %}
          {% set temp_now1 = (as_timestamp(now())|int - (states('variable.var_testowa')|int))|int|timestamp_custom('%M:%S') %}
          {% set temp_now2 = (temp_now1.split(':')[0]|int * 60)+(temp_now1.split(':')[1]|int) %}
          {{ (temp_delay - temp_now2)|int|timestamp_custom('%M:%S') }}
        {% else %}
          {% set temp_delay = (state_attr('timer.test_on', 'duration').split(':')[0]|int * 60 * 60)+(state_attr('timer.test_on', 'duration').split(':')[1]|int * 60)+(state_attr('timer.test_on', 'duration').split(':')[2]|int) %}
          {% set temp_now1 = (as_timestamp(now())|int - (states('variable.var_testowa')|int))|int|timestamp_custom('%M:%S') %}
          {% set temp_now2 = (temp_now1.split(':')[0]|int * 60)+(temp_now1.split(':')[1]|int) %}
          {{ (temp_delay - temp_now2)|int|timestamp_custom('%M:%S') }}
        {% endif %}

timer:
  test_on:
    name: test_on
    duration: '00:05:00'
  test_delay:
    name: test_delay
    duration: '00:45:00'

automation:
  #################### odśwież licznik na przyciku
  - id: test_refresh
    alias: test_refresh
    trigger:
    - platform: time_pattern
      seconds: "/2"
    action:
    - condition: template
      value_template: "{{ 'False' if (is_state('timer.test_on', 'idle') and is_state('timer.test_delay', 'idle')) else 'True' }}"
    - service: homeassistant.update_entity
      entity_id:
        - sensor.test
    - condition: template
      value_template: "{{ 'True' if (is_state('timer.test_on', 'idle') and is_state('timer.test_delay', 'idle')) else 'False' }}"
    - service: homeassistant.turn_off
      entity_id:
        - automation.test_refresh

  #################### włącz odświeżanie licznika na przycisku
  - id: test_refresh_on
    alias: test_refresh_on
    trigger:
    - platform: event
      event_type: timer.started
      event_data:
        entity_id: timer.test_on
    - platform: event
      event_type: timer.started
      event_data:
        entity_id: timer.test_delay
    - platform: event
      event_type: timer.restarted
      event_data:
        entity_id: timer.test_on
    - platform: event
      event_type: timer.restarted
      event_data:
        entity_id: timer.test_delay
    action:
    - condition: template
      value_template: "{{ 'False' if (is_state('timer.test_on', 'idle') and is_state('timer.test_delay', 'idle')) else 'True' }}"
    - service: homeassistant.turn_on
      entity_id:
        - automation.test_refresh

  #################### wyłącz odświeżanie licznika na przycisku
  - id: test_refresh_off
    alias: test_refresh_off
    trigger:
    - platform: event
      event_type: timer.finished
      event_data:
        entity_id: timer.test_on
    - platform: event
      event_type: timer.finished
      event_data:
        entity_id: timer.test_delay
    action:
    - condition: template
      value_template: "{{ 'True' if (is_state('timer.test_on', 'idle') and is_state('timer.test_delay', 'idle')) else 'False' }}"
    - service: homeassistant.turn_off
      entity_id:
        - automation.test_refresh

  #################### włącz
  - id: test_on
    alias: test_on
    trigger:
    ## jakiś trigger
    action:
    - condition: template
      value_template: "{{ 'True' if (is_state('timer.test_delay', 'idle') and trigger.to_state.state == 'on') else 'False' }}"
    - service: timer.start
      entity_id: timer.test_on
    - service: variable.set_variable
      data:
        variable: var_testowa
        value_template: "{{ as_timestamp(now())|int }}"
    - condition: state
      entity_id: switch.test
      state: 'off'
    - service: switch.turn_on
      entity_id: switch.test

  #################### wyłącz
  - id: test_off
    alias: test_off
    trigger:
    - platform: event
      event_type: timer.finished
      event_data:
        entity_id: timer.test_on
    - platform: event
      event_type: timer.cancelled
      event_data:
        entity_id: timer.test_on
    action:
    - condition: state
      entity_id: switch.test
      state: 'on'
    - service: switch.turn_off
      entity_id: switch.test
    - service: timer.start
      entity_id: timer.test_delay
    - service: variable.set_variable
      data:
        variable: var_testowa
        value_template: "{{ as_timestamp(now())|int }}"