nixos-config/configs/pepe/home-assistant/chaospott.nix

{ config, pkgs, ... }:
let

  name = "chaospott";
  folderPath = config.services.home-assistant.configDir;
  filePath = "${folderPath}/${name}.json";

in {
  services.homeAssistantConfig = {

    sensor = [
      {
        platform = "file";
        name = "${name}_aerie";
        file_path = filePath;
        value_template = "{{ value_json.aerie }}";
      }
      {
        platform = "file";
        name = "${name}_cellar";
        file_path = filePath;
        value_template = "{{ value_json.cellar }}";
      }
    ];

    homeassistant = {
      whitelist_external_dirs = [ folderPath ];
      customize = {
        "sensor.${name}_aerie" = {
          icon = "mdi:store";
          entity_picture = "https://chaospott.de/images/logo.png";
          friendly_name = "ChaosPott Oben";
        };
        "sensor.${name}_cellar" = {
          icon = "mdi:store";
          entity_picture = "https://chaospott.de/images/logo.png";
          friendly_name = "ChaosPott Unten";
        };
      };
    };

    group = {
      "${name}" = {
        name = "ChaosPott (Essen)";
        entities = [ "sensor.${name}_aerie" "sensor.${name}_cellar" ];
      };
    };

  };

  systemd.services."${name}" = {
    enable = true;
    before = [ "home-assistant.service" ];
    wantedBy = [ "home-assistant.service" ];
    serviceConfig = {
      User = "hass";
      Type = "oneshot";
    };
    description = "set ${name} for homeassistant";
    script = ''
      ${pkgs.curl}/bin/curl --location --silent https://status.chaospott.de/api \
          | ${pkgs.jq}/bin/jq --compact-output \
                       '.sensors.door_locked |
      [.[] | { "\(.location)" : (if .value then "closed" else "open" end) }] |
      reduce .[] as $item ({}; . + $item) ' \
                       >> ${filePath}
    '';
  };

  systemd.timers."${name}" = {
    enable = true;
    wantedBy = [ "multi-user.target" ];
    timerConfig = {
      OnCalendar = "hourly";
      Persistent = "true";
    };
  };

}