nixos-config/nixos/configs/pepe/home-assistant/zigbee2mqtt/temperatur.nix

{ pkgs, lib, ... }:
let

  # https://www.zigbee2mqtt.io/devices/WSDCGQ11LM.html
  allDevices = {
    "temperature_sensor_1" = {
      id = "0x00158d0002d79220";
      groups = [ "living_room" ];
    };
    "temperature_sensor_2" = {
      id = "0x00158d0002d7913d";
      groups = [ "living_room" ];
    };
  };

in
{

  services.zigbee2mqttConfiguration = lib.mapAttrs'
    (name:
      { id, ... }: {
        name = id;
        value = {
          retain = false;
          friendly_name = name;
        };
      })
    allDevices;

  services.homeAssistantConfig = {

    # define meta information sensors
    sensor = lib.flatten (lib.mapAttrsToList
      (name:
        { ... }: [
          {
            platform = "mqtt";
            name = name;
            state_topic = "zigbee2mqtt/${name}";
            availability_topic = "zigbee2mqtt/bridge/state";
            unit_of_measurement = "°C";
            device_class = "temperature";
            value_template = "{{ value_json.temperature }}";
          }
          {
            platform = "mqtt";
            name = "humidity_${name}";
            state_topic = "zigbee2mqtt/${name}";
            availability_topic = "zigbee2mqtt/bridge/state";
            unit_of_measurement = "%";
            device_class = "humidity";
            value_template = "{{ value_json.humidity }}";
          }
          #{
          #  platform = "mqtt";
          #  name = "pressure_${name}";
          #  state_topic = "zigbee2mqtt/${name}";
          #  availability_topic = "zigbee2mqtt/bridge/state";
          #  unit_of_measurement = "hPa";
          #  device_class = "pressure";
          #  value_template = "{{ value_json.pressure }}";
          #}
          {
            name = "battery_${name}";
            platform = "mqtt";
            state_topic = "zigbee2mqtt/${name}";
            availability_topic = "zigbee2mqtt/bridge/state";
            unit_of_measurement = "%";
            icon = "mdi:battery-10";
            value_template = "{{ value_json.battery }}";
          }
          {
            name = "link_${name}";
            platform = "mqtt";
            state_topic = "zigbee2mqtt/${name}";
            availability_topic = "zigbee2mqtt/bridge/state";
            icon = "mdi:signal";
            unit_of_measurement = "lqi";
            value_template = "{{ value_json.linkquality }}";
          }
        ])
      allDevices);

    # create groups
    # -------------
    #group = let
    #  # to have nice panels for every device
    #  sensorGroups = lib.mapAttrs (name:
    #    { ... }: {
    #      entities = [
    #        "sensor.${name}"
    #        "sensor.humidity_${name}"
    #        #"sensor.pressure_${name}"
    #        "sensor.battery_${name}"
    #        "sensor.link_${name}"
    #      ];
    #    }) allDevices;
    #  # sort lights into given groups.
    #  sortedInGroups = let
    #    groupEntries = lib.zipAttrs (lib.flatten (lib.mapAttrsToList (name:
    #      { groups ? [ ], ... }:
    #      map (groupName: { "${groupName}" = "sensor.${name}"; }) groups)
    #      allDevices));
    #  in lib.mapAttrs (name: entities: { inherit entities; }) groupEntries;
    #in sortedInGroups // sensorGroups // {
    #  all_sensors.entities =
    #    lib.mapAttrsToList (name: { ... }: "sensor.${name}") allDevices;
    #};

  };

}