# values to store within HA
variable:
  test_timer_countdown:
    value: 0
    attributes:
      icon: mdi:timer
# dummy device value to turn on and off
  test_timer_device:
    value: 'OFF'
    attributes:
      icon: mdi:flash

input_number:
  test_timer_duration:
    name: "Duration"
    unit_of_measurement: seconds
    initial: 3
    min: 1
    max: 15
    step: 1
    icon: mdi:camera-timer

script:
  start_test_timer:
    sequence:
      - service: variable.set_variable
        data:
          variable: test_timer_countdown
          value_template: '{{ states.input_number.test_timer_duration.state | int  }}'
      - service: variable.set_variable
        data:
         variable: test_timer_device
         value: 'ON'
      - service: automation.turn_on
        data:
          entity_id: automation.test_timer_countdown
      - service: automation.turn_on
        data:
          entity_id: automation.test_timer_zero_trigger


  abort_test_timer:
    sequence:
      - service: automation.turn_off
        data:
          entity_id: automation.test_timer_countdown
      - service: automation.turn_off
        data:
          entity_id: automation.test_timer_zero_trigger
      - service: variable.set_variable
        data:
         variable: test_timer_device
         value: 'OFF'
      - service: persistent_notification.create
        data:
          message: "Timer was Aborted"
          title: "ALERT"

#
automation:
  - alias: test_timer_zero_trigger
    initial_state: false
    trigger:
      platform: numeric_state
      entity_id: variable.test_timer_countdown
      below: 1
    action:
      - service: automation.turn_off
        entity_id: automation.test_timer_countdown
      - service: variable.set_variable
        data:
         variable: test_timer_device
         value: 'OFF'
#
  - alias: test_timer_countdown
    initial_state: false
    trigger:
      platform: time_pattern
      seconds: '/1'
    action:
      - service: variable.set_variable
        data:
         variable: test_timer_countdown
         value_template: '{{ [((variable.state | int) - 1), 0] | max }}'

# lovelace ui view for timer, copy into ui-lovelace.yaml as a view  (lovelace in yaml mode)
  # - title: Timer
  #   cards:
  #     - type: vertical-stack
  #       cards:
  #         - type: horizontal-stack
  #           cards:
  #             - type: entity-button
  #               name: start timer countdown
  #               icon: mdi:timer
  #               tap_action:
  #                 action: call-service
  #                 service: script.turn_on
  #                 service_data:
  #                   entity_id: script.start_test_timer
  #               entity: script.start_test_timer
  #             - type: entity-button
  #               name: abort timer
  #               icon: mdi:timer-off
  #               tap_action:
  #                 action: call-service
  #                 service: script.turn_on
  #                 service_data:
  #                   entity_id: script.abort_test_timer
  #               entity: script.abort_test_timer
  #         - type: entities
  #           entities:
  #             - entity: variable.test_timer_countdown
  #             - entity: variable.test_timer_device
  #               name: dummy device
  #             - entity: input_number.test_timer_duration