dwd_markdown_card.yaml

type: entity-filter
entities:
  - sensor.dwd_weather_warnings_709162019_current_warning_level
  - sensor.dwd_weather_warnings_709162019_advance_warning_level
state_filter:
  - operator: ">"
    value: 0
card:
  type: markdown
  title: DWD Warnungen
  content: >-

    {% if config.entities | length < 1 %}  **<font color=#44739e>Keine Warnungen</font>** {% endif %}

    {# --- Loop through the entities with state 'on' --- #}
    {% for item in config.entities %}

    {# --- SETTINGS --- #}
    {% set show_recommend_action = true %}  
    {% set show_timeframe = true %} 
    {% set show_timestamp_sent = false %} 
    {% set minor_severity = "info" %} 
    {% set moderate_severity = "info" %} 
    {% set default_severity = "success" %} 

    {# --- Item attributes --- #}
    {% set warning_count = state_attr(item.entity, "warning_count") %} 
    {% set has_sent = (not not state_attr(item.entity, "last_update")|default(false, true)) %}
    {% if has_sent %} 
    {% set time_sent = as_timestamp(state_attr(item.entity, "last_update")) %} 
    {% else %} 
    {% set time_sent = as_timestamp("1970-01-01T00:00:00+00:00") %} 
    {% endif %}
    {% set num_weekday_sent = time_sent | timestamp_custom("%w", True) | int %}
    {% set weekday_sent = "" ~ ['Montag','Dienstag','Mittwoch','Donnerstag','Freitag','Samstag','Sonntag'][num_weekday_sent-1] %}

    {# --- Loop through the warnings --- #}
    {% for i in range(warning_count) %}

    {# --- Initialise attribute values --- #}
    {% set headline = state_attr(item.entity, "warning_" ~ loop.index ~ "_headline")|default('Meldung', true) %} 
    {% set description = state_attr(item.entity, "warning_" ~ loop.index ~ "_description")|default('', true)|trim %}
    {% set recommended_actions = state_attr(item.entity, "warning_" ~ loop.index ~ "_instruction")|default('', true)|trim %}
    {% set warn_timeframe = "" %}
    {% set level = state_attr(item.entity, "warning_" ~ loop.index ~ "_level")|default(default_severity, true) %} 

    {# --- Set severity --- #}
    {% if level == "4" %} {% set severity = "error" %} 
    {% elif level == "3" %}{% set severity = "warning" %} 
    {% elif level == "2" %}{% set severity = moderate_severity %} 
    {% elif level == "1" %}{% set severity = minor_severity %} 
    {% else %}{% set severity = default_severity %} {% endif %}

    {# --- Check attribute content --- #}
    {% set has_start = (not not state_attr(item.entity, "warning_" ~ loop.index ~ "_start")|default(false, true)) %}
    {% set has_end = (not not state_attr(item.entity, "warning_" ~ loop.index ~ "_end")|default(false, true)) %}
    {% set has_recommended_actions = (not not state_attr(item.entity, "warning_" ~ loop.index ~ "_instruction")|default(false, true)) %}

    {# --- Fill timestamp variables --- #}
    {% if has_start %} 
    {% set time_start = as_timestamp(state_attr(item.entity, "warning_" ~ loop.index ~ "_start")) %} 
    {% else %} 
    {% set time_start = as_timestamp("1970-01-01T00:00:00+00:00") %} 
    {% endif %}
    {% set num_weekday_start = time_start | timestamp_custom("%w", True) | int %}
    {% set weekday_start = "" ~ ['Montag','Dienstag','Mittwoch','Donnerstag','Freitag','Samstag','Sonntag'][num_weekday_start-1] %}

    {% if has_end %} 
    {% set time_end = as_timestamp(state_attr(item.entity, "warning_" ~ loop.index ~ "_end")) %} 
    {% else %} 
    {% set time_end = as_timestamp("1970-01-01T00:00:00+00:00") %} 
    {% endif %}
    {% set num_weekday_end = time_end | timestamp_custom("%w", True) | int %}
    {% set weekday_end = "" ~ ['Montag','Dienstag','Mittwoch','Donnerstag','Freitag','Samstag','Sonntag'][num_weekday_end-1] %}

    {# --- Format recommended_actions for warning --- #}
    {% if has_recommended_actions %} 
    {% set recommended_actions = "<br/>**Empfehlung:** " ~ recommended_actions ~ "<br/>" %}
    {% endif %}

    {# --- Format custom timeframe for warning --- #}
    {% if show_timeframe %} 
    {% set warn_timeframe = "<br/>**" ~ weekday_sent ~ ", " ~ time_sent | timestamp_custom("%H:%M Uhr") %}
    {% if has_start %} 
    {% set warn_timeframe = "<br/>**" ~ weekday_start ~ ", " ~ time_start | timestamp_custom("%H:%M Uhr") %}
    {% endif %}
    {% if has_end %} 
    {% set warn_timeframe = warn_timeframe ~ " - " ~ weekday_end ~ ", " ~ time_end | timestamp_custom("%H:%M Uhr") ~ "**<br/>"  %}
    {% else %}
    {% set warn_timeframe = "" %}
    {% set show_timestamp_sent = true %} 
    {% endif %}
    {% endif %}

    {# --- Construct ha-alert elements --- #}
    <ha-alert alert-type="{{ severity }}" title="{{ headline }}"> 
    {{ description }} <br/> 
    {{ recommended_actions }} 
    {{ warn_timeframe }}
    {% if show_timestamp_sent %} 
    <br/>`{{ time_sent | timestamp_custom("Meldung vom: %d.%m.%Y, %H:%M Uhr") }}`
    {% endif %}</ha-alert>

    {% endfor %}
    {% endfor %}