{ config, pkgs, lib, ... }:

let
  short_threshold = 30; #seconds
  long_threshold = 30; #minutes
  sensor = "binary_sensor.buerotuer_contact";

  # get the list of all
  name = "tueraudio";
  prefix = "http://localhost:8123/local/${name}";
  audiodir = "${config.services.home-assistant.configDir}/www/${name}";
  recordrepo = pkgs.fetchFromGitHub {
    owner = "makefu";
    repo = "philosophische_tuer";
    rev = "17544c6";
    sha256 = "0bm0697fyf6s05c6yw6y25cyck04rlxj1dgazkq8mfqk6756v2bq";
  };
  samples = user: lib.mapAttrsToList
    (file: _: ''"${prefix}/${name}/${user}/${file}"'')
    (builtins.readDir (toString ( recordrepo+ "/recordings/${user}")));
  random_tuerspruch = ''{{'' + (lib.concatStringsSep "," ((samples "Felix") ++ (samples "Sofia") ++ (samples "Markus"))) + ''| random}}''; # TODO read from derivation
in
{
  systemd.tmpfiles.rules = [
    "d ${audiodir} - hass hass - -"
  ];

  systemd.services.copy-philosophische-tuersounds = {
    description = "copy philosophische tuer";
    wantedBy = [ "multi-user.target"  ];
    serviceConfig = {
      Type = "oneshot";
      User = "hass";
      WorkingDirectory = audiodir;
      ExecStart = pkgs.writeDash "update-samples" ''
        cp -vr ${recordrepo} ${audiodir}
      '';
    };
  };

  services.home-assistant.config.media_extractor = { };
  services.home-assistant.config.script."philosophische_tuer" = {
    alias = "Durchsage der philosophischen Tür";
    sequence = [
      { service = "media_player.play_media";
        data = {
          entity_id = "media_player.mpd";
          media_content_type = "playlist";
          media_content_id = "ansage";
        };
      }
      { delay.seconds = 5; }
      { service = "media_extractor.play_media";
        entity_id =  "media_player.mpd";
        data_template = {
          media_content_id = random_tuerspruch;
          media_content_type = "MUSIC";
        };
      }
    ];
  };
  services.home-assistant.config.automation =
  [
    {
      alias = "Tür offen seit ${toString short_threshold} sekunden";
      trigger =
      { platform = "state";
        entity_id = sensor;
        to = "on";
        for.seconds = 60;
      };
      condition = { };

      action = [
        { service = "homeassistant.turn_on";
          entity_id = [
            "script.philosophische_tuer"
          ];
        }
      ];
    }
    {
      alias = "Tür offen seit ${toString long_threshold} minuten";
      trigger =
      { platform = "state";
        entity_id = sensor;
        to = "on";
        for.minutes = long_threshold;
      };
      condition = { };

      action = [
        { service = "homeassistant.turn_on";
          entity_id = [
            "script.philosophische_tuer"
          ];
        }
        { service = "tts.google_say";
          entity_id =  "media_player.mpd";
          data_template = {
            message = "BEEP BOOP - Die Tür ist schon seit ${toString long_threshold} Minuten offen! Student Nummer {{ range(1,500) | random }}, bitte schliesse die Tür";
            language = "de";
          };
        }
      ];
    }
  ];
}