blueprint:
  name: OpenEPaperLink 1.54-inch Sensor Data Display
  description: 'Display sensor data and graphs on 1.54" ePaper display tags.
    
    
    This blueprint is meant for use with the 
    [OpenEPaperLink integration](https://github.com/jonasniesner/open_epaper_link_homeassistant)
    by Jonas Niesner. With this, you can set up automations to use the common 
    1.54" ST‐GR16000 price tags to display various sensor data.
    
    
    The display can show up to six values at the same time, in the following
    arrangement:
    
    
    * Two numerical sensor values at the top. By default these are shown in black.
    Each of them can be displayed in red if it is above and/or below a certain threshold.
    
    * Two line graphs in the middle and bottom. Each graph shows a black line 
    with the values of a sensor over a past time period (by default 24h). 
    In addition, the graph can display a thin red line with the values from a
    second sensor over the same time period.

    '
  domain: automation
  
  input:
    tag_entity:
      name: Target display
      description: >
        Data will be displayed on this ePaper tag. The blueprint assumes a
        1.54" tag with 152x152 pixels.
      selector:
        # Unfortunately we cannot use a `target` selector here, because
        # the OpenEPaperLink integration throws an error when calling `drawcustom`
        # with a `device_id`. 
        entity:
          multiple: false
    triggers:
      name: When to initiate update
      description: >
        This will send new data to the access point. Keep in mind that the tags 
        are refreshed only when they check in with the access point, so it may
        take some time until the display itself is updated. 
      selector:
        trigger:
    sensor1:
      name: Top left - Sensor
      description: Values from this sensor will be displayed at the top left.
      selector:
        entity:
    field1_icon:
      name: Top left - Icon
      description: This icon will be displayed next to the data at the top left.
      selector:
        icon:
    field1_warn_above:
      name: Top left - Upper warning threshold
      description: Values above this number will be displayed in red.
      default: 1000
      selector:
        number:
          min: -100000000000.0
          max:  100000000000.0
          mode: box
          step: any
    field1_warn_below:
      name: Top left - Lower warning threshold
      description: Values below this number will be displayed in red.
      default: -1000
      selector:
        number:
          min: -100000000000.0
          max:  100000000000.0
          mode: box
          step: any
    sensor2:
      name: Top right - Sensor
      description: Values from this sensor will be displayed at the top right.
      selector:
        entity:
    field2_icon:
      name: Top right - Icon
      description: This icon will be displayed next to the data at the top right.
      selector:
        icon:
    field2_warn_above:
      name: Top right - Upper warning threshold
      description: Values above this number will be displayed in red.
      default: 1000
      selector:
        number:
          min: -100000000000.0
          max:  100000000000.0
          mode: box
          step: any
    field2_warn_below:
      name: Top right - Lower warning threshold
      description: Values below this number will be displayed in red.
      default: -1000
      selector:
        number:
          min: -100000000000.0
          max:  100000000000.0
          mode: box
          step: any
    sensor3:
      name: Middle graph - Sensor
      description: Values from this sensor will be displayed as a black line in the middle graph.
      selector:
        entity:
    field3_icon:
      name: Middle graph - Icon
      description: This icon will be displayed next to the middle graph.
      selector:
        icon:
    field3_duration:
      name: Middle graph - Duration
      description: >
        Total duration (in seconds) of the data shown on the middle graph.
        The default is 86400 seconds (24 hours).
      default: 86400
      selector:
        number:
          min: 60
          max: 31622400 # 1 year (366 days)
          mode: box
          step: 1
          unit_of_measurement: seconds
    sensor4:
      name: Middle graph - Second sensor
      description: If a sensor is selected here, values will be displayed as a thin red line in the middle graph.
      default: ""
      selector:
        entity:
    sensor5:
      name: Bottom graph - Sensor
      description: Values from this sensor will be displayed as a black line in the bottom graph.
      selector:
        entity:
    field4_icon:
      name: Bottom graph - Icon
      description: This icon will be displayed next to the bottom graph.
      selector:
        icon:
    field4_duration:
      name: Bottom graph - Duration
      description: >
        Total duration (in seconds) of the data shown on the bottom graph.
        The default is 86400 seconds (24 hours).
      default: 86400
      selector:
        number:
          min: 60
          max: 31622400 # 1 year (366 days)
          mode: box
          step: 1
          unit_of_measurement: seconds
    sensor6:
      name: Bottom graph - Second sensor
      description: If a sensor is selected here, values will be displayed as a thin red line in the bottom graph.
      default: ""
      selector:
        entity:
    font_data:
      name: Font - Data values
      description: > 
        This font will be used to display the numerical data values. 
        OpenEPaperLink has `ppb.ttf` and `rbm.ttf` built in.
        If you want custom fonts, upload them to `/media` on HA, then specify
        e.g. `/media/Bahnschrift.ttf`. 
      default: ppb.ttf
    font_unit:
      name: Font - Units
      description: > 
        This font will be used to display the units.
      default: ppb.ttf
    font_legend:
      name: Font - Graph legend
      description: >
        This font will be used to display the small legend next to the graphs.
      default: ppb.ttf
    frame_color:
      name: Frame color
      description: Optionally draw a red or black frame around each display.
      default: white
      selector:
        select:
          options:
            - white
            - red
            - black
          mode: dropdown
    
trigger:
  !input triggers
condition: []

variables:
  tag: !input tag_entity
  field1_icon: !input field1_icon
  sensor1: !input sensor1
  field1_warn_above: !input field1_warn_above
  field1_warn_below: !input field1_warn_below
  field2_icon: !input field2_icon
  sensor2: !input sensor2
  field2_warn_above: !input field2_warn_above
  field2_warn_below: !input field2_warn_below
  field3_icon: !input field3_icon
  sensor3: !input sensor3
  field3_duration: !input field3_duration
  sensor4: !input sensor4
  field4_icon: !input field4_icon
  sensor5: !input sensor5
  field4_duration: !input field4_duration
  sensor6: !input sensor6
  font_data: !input font_data
  font_unit: !input font_unit
  font_legend: !input font_legend
  frame_color: !input frame_color
  # Some processing to get sensor data and coloring 
  field1_value: "{{states(''''~sensor1)}}"
  field1_unit: "{{state_attr(''''~sensor1,'unit_of_measurement')}}"
  field2_value: "{{states(''''~sensor2)}}"
  field2_unit: "{{state_attr(''''~sensor2,'unit_of_measurement')}}"
  field1_color: >
    {% if is_number(float(field1_value,"")) and ((is_number(float(field1_warn_above,"")) and (float(field1_value) > float(field1_warn_above))) 
                                              or (is_number(float(field1_warn_below,"")) and (float(field1_value) < float(field1_warn_below)))) -%}
    red
    {%- else -%} 
    black
    {%- endif %}  
  field2_color: >
    {% if is_number(float(field2_value,"")) and ((is_number(float(field2_warn_above,"")) and (float(field2_value) > float(field2_warn_above))) 
                                              or (is_number(float(field2_warn_below,"")) and (float(field2_value) < float(field2_warn_below)))) -%}
    red
    {%- else -%} 
    black
    {%- endif %}
  # Building blocks for the various UI components of the display
  building_blocks:
    - &frame
      type: rectangle
      outline: !input frame_color
      fill: white
      width: 1
    - &icon
      type: icon
      size: 32
      color: black
    - &value
      type: text
      font: !input font_data
      size: 24
      color: black
      anchor: mm
    - &unit
      type: text
      font: !input font_unit
      y_padding: 14
      size: 18
      color: black
      anchor: mm
    - &plot
      type: plot
      font: !input font_legend
      size: 12
      ylegend:
        position: right
        color: red
      yaxis: null
    # Top left value
    - &frame1
      <<: *frame
      x_start: 0
      y_start: 0
      x_end: 75
      y_end: 49
    - &icon1
      <<: *icon
      color: "{{ field1_color }}"
      value: !input field1_icon
      x: 1
      "y": 8
    - &value1
      <<: *value
      color: "{{ field1_color }}"
      value: "{{ field1_value }}"
      x: 52
      "y": 14
    - &unit1
      <<: *unit
      color: "{{ field1_color }}"
      value: "{{ field1_unit }}"
      x: 52
    # Top right value
    - &frame2
      <<: *frame
      x_start: 77
      y_start: 0
      x_end: 151
      y_end: 49
    - &icon2
      <<: *icon
      color: "{{ field2_color }}"
      value: !input field2_icon
      x: 77
      "y": 8
    - &value2
      <<: *value
      color: "{{ field2_color }}"
      value: "{{ field2_value }}"
      x: 128
      "y": 14
    - &unit2
      <<: *unit
      color: "{{ field2_color }}"
      value: "{{ field2_unit }}"
      x: 128
    # Middle graph
    - &frame3
      <<: *frame
      x_start: 0
      y_start: 51
      x_end: 151
      y_end: 100
    - &icon3
      <<: *icon
      x: 1
      "y": 59
      value: !input field3_icon
    # Version with one line
    - &plot3
      <<: *plot
      x_start: 34
      y_start: 52
      x_end: 149
      y_end: 99
      duration: !input field3_duration
      data:
        - entity: !input sensor3
          width: 3
          joint: curve
    # Version with two lines
    - &plot3_2
      <<: *plot3
      data:
        - entity: !input sensor3
          width: 3
          joint: curve
          color: black
        - entity: !input sensor4
          width: 1
          joint: curve
          color: red
    # Bottom graph
    - &frame4
      <<: *frame
      x_start: 0
      y_start: 102
      x_end: 151
      y_end: 151
    - &icon4
      <<: *icon
      x: 1
      "y": 110
      value: !input field4_icon
    # Version with one line
    - &plot4
      <<: *plot
      x_start: 34
      y_start: 103
      x_end: 149
      y_end: 150
      duration: !input field4_duration
      data:
        - entity: !input sensor5
          width: 3
          joint: curve
    # Version with two lines
    - &plot4_2
      <<: *plot4
      data:
        - entity: !input sensor5
          width: 3
          joint: curve
          color: black
        - entity: !input sensor6
          width: 1
          joint: curve
          color: red

mode: single

action:
  # Check whether the two graphs have 1 or 2 data sources each
  # Unfortunately we currently need 4 different code paths for this
  #
  # Todo: check if the OpenEPaperLink integration's `Plot` payload of the
  # `drawcustom` service can be made to ignore entities with invalid
  # sensors, then we can pass just "None" or pass the same entity twice.
  - choose:     
      - conditions:
          - condition: and
            conditions:
              - "{{ states(sensor4) not in ['unavailable', 'unknown', 'none'] }}"
              - "{{ states(sensor6)     in ['unavailable', 'unknown', 'none'] }}"
        alias: Draw tag, top graph with 2 sensors, bottom with 1 sensor
        sequence:
          - service: open_epaper_link.drawcustom
            target: 
              entity_id: !input tag_entity
            data:
              background: white
              rotate: 0
              ttl: 300
              payload:
                - <<: *frame1
                - <<: *icon1
                - <<: *value1
                - <<: *unit1
                - <<: *frame2
                - <<: *icon2
                - <<: *value2
                - <<: *unit2
                - <<: *frame3
                - <<: *icon3
                - <<: *plot3_2
                - <<: *frame4
                - <<: *icon4
                - <<: *plot4
      - conditions:
          - condition: and
            conditions:
              - "{{ states(sensor4)     in ['unavailable', 'unknown', 'none'] }}"
              - "{{ states(sensor6) not in ['unavailable', 'unknown', 'none'] }}"
        alias: Draw tag, top graph with 1 sensor, bottom with 2 sensors
        sequence:
          - service: open_epaper_link.drawcustom
            target: 
              entity_id: !input tag_entity
            data:
              background: white
              rotate: 0
              ttl: 300
              payload:
                - <<: *frame1
                - <<: *icon1
                - <<: *value1
                - <<: *unit1
                - <<: *frame2
                - <<: *icon2
                - <<: *value2
                - <<: *unit2
                - <<: *frame3
                - <<: *icon3
                - <<: *plot3
                - <<: *frame4
                - <<: *icon4
                - <<: *plot4_2
      - conditions:
          - condition: and
            conditions:
              - "{{ states(sensor4) not in ['unavailable', 'unknown', 'none'] }}"
              - "{{ states(sensor6) not in ['unavailable', 'unknown', 'none'] }}"
        alias: Top and bottom graphs with 2 sensors each
        sequence:
          - service: open_epaper_link.drawcustom
            target: 
              entity_id: !input tag_entity
            data:
              background: white
              rotate: 0
              ttl: 300
              payload:
                - <<: *frame1
                - <<: *icon1
                - <<: *value1
                - <<: *unit1
                - <<: *frame2
                - <<: *icon2
                - <<: *value2
                - <<: *unit2
                - <<: *frame3
                - <<: *icon3
                - <<: *plot3_2
                - <<: *frame4
                - <<: *icon4
                - <<: *plot4_2
    default:
      - service: open_epaper_link.drawcustom
        target: 
          entity_id: !input tag_entity
        data:
          background: white
          rotate: 0
          ttl: 300
          payload:
                - <<: *frame1
                - <<: *icon1
                - <<: *value1
                - <<: *unit1
                - <<: *frame2
                - <<: *icon2
                - <<: *value2
                - <<: *unit2
                - <<: *frame3
                - <<: *icon3
                - <<: *plot3
                - <<: *frame4
                - <<: *icon4
                - <<: *plot4