server-config/services/recyclarr.nix

{
  pkgs,
  config,
  service_configs,
  lib,
  ...
}:
let
  configTemplate = (pkgs.formats.yaml {}).generate "recyclarr.yml" {
    radarr.movies = {
      base_url = "http://localhost:${builtins.toString service_configs.ports.radarr}";
      api_key = "RADARR_API_KEY_PLACEHOLDER";

      include = [
        { template = "radarr-quality-definition-movie"; }
        { template = "radarr-quality-profile-remux-web-2160p"; }
        { template = "radarr-custom-formats-remux-web-2160p"; }
      ];

      quality_profiles = [{
        name = "Remux + WEB 2160p";
        upgrade = {
          allowed = true;
          until_quality = "Remux-2160p";
        };
        qualities = [
          { name = "Remux-2160p"; }
          {
            name = "WEB 2160p";
            qualities = [ "WEBDL-2160p" "WEBRip-2160p" ];
          }
          { name = "Remux-1080p"; }
          { name = "Bluray-1080p"; }
          {
            name = "WEB 1080p";
            qualities = [ "WEBDL-1080p" "WEBRip-1080p" ];
          }
          { name = "HDTV-1080p"; }
        ];
      }];

      custom_formats = [
        # Upscaled
        {
          trash_ids = [ "bfd8eb01832d646a0a89c4deb46f8564" ];
          assign_scores_to = [{ name = "Remux + WEB 2160p"; score = -10000; }];
        }
        # x265 (HD) - override template -10000 penalty
        {
          trash_ids = [ "dc98083864ea246d05a42df0d05f81cc" ];
          assign_scores_to = [{ name = "Remux + WEB 2160p"; score = 0; }];
        }
        # x265 (no HDR/DV) - override template -10000 penalty
        {
          trash_ids = [ "839bea857ed2c0a8e084f3cbdbd65ecb" ];
          assign_scores_to = [{ name = "Remux + WEB 2160p"; score = 0; }];
        }
      ];
    };

    sonarr.series = {
      base_url = "http://localhost:${builtins.toString service_configs.ports.sonarr}";
      api_key = "SONARR_API_KEY_PLACEHOLDER";

      include = [
        { template = "sonarr-quality-definition-series"; }
        { template = "sonarr-v4-quality-profile-web-2160p"; }
        { template = "sonarr-v4-custom-formats-web-2160p"; }
      ];

      quality_profiles = [{
        name = "WEB-2160p";
        upgrade = {
          allowed = true;
          until_quality = "WEB 2160p";
        };
        qualities = [
          {
            name = "WEB 2160p";
            qualities = [ "WEBDL-2160p" "WEBRip-2160p" ];
          }
          { name = "Bluray-1080p Remux"; }
          { name = "Bluray-1080p"; }
          {
            name = "WEB 1080p";
            qualities = [ "WEBDL-1080p" "WEBRip-1080p" ];
          }
          { name = "HDTV-1080p"; }
        ];
      }];

      custom_formats = [
        # Upscaled
        {
          trash_ids = [ "23297a736ca77c0fc8e70f8edd7ee56c" ];
          assign_scores_to = [{ name = "WEB-2160p"; score = -10000; }];
        }
        # x265 (HD) - override template -10000 penalty
        {
          trash_ids = [ "47435ece6b99a0b477caf360e79ba0bb" ];
          assign_scores_to = [{ name = "WEB-2160p"; score = 0; }];
        }
        # x265 (no HDR/DV) - override template -10000 penalty
        {
          trash_ids = [ "9b64dff695c2115facf1b6ea59c9bd07" ];
          assign_scores_to = [{ name = "WEB-2160p"; score = 0; }];
        }
      ];
    };
  };

  dataDir = service_configs.recyclarr.dataDir;
  radarrConfig = "${service_configs.radarr.dataDir}/config.xml";
  sonarrConfig = "${service_configs.sonarr.dataDir}/config.xml";

  user = "recyclarr";
  group = "recyclarr";

  # Runs as root (via + prefix) to read API keys from config.xml, then chowns output
  generateConfig = pkgs.writeShellScript "recyclarr-generate-config" ''
    RADARR_KEY=$(${pkgs.gnugrep}/bin/grep -oP '(?<=<ApiKey>)[^<]+' ${radarrConfig})
    SONARR_KEY=$(${pkgs.gnugrep}/bin/grep -oP '(?<=<ApiKey>)[^<]+' ${sonarrConfig})
    ${pkgs.gnused}/bin/sed \
      -e "s/RADARR_API_KEY_PLACEHOLDER/$RADARR_KEY/" \
      -e "s/SONARR_API_KEY_PLACEHOLDER/$SONARR_KEY/" \
      ${configTemplate} > ${dataDir}/recyclarr.yml
    chown ${user}:${group} ${dataDir}/recyclarr.yml
  '';
in
{
  imports = [
    (lib.serviceMountWithZpool "recyclarr" service_configs.zpool_ssds [
      dataDir
    ])
  ];

  systemd.tmpfiles.rules = [
    "d ${dataDir} 0755 ${user} ${group} -"
    "d ${dataDir}/data 0755 ${user} ${group} -"
  ];

  systemd.services.recyclarr = {
    description = "Recyclarr TRaSH Guides Sync";
    after = [ "network-online.target" "radarr.service" "sonarr.service" ];
    wants = [ "network-online.target" ];
    serviceConfig = {
      Type = "oneshot";
      User = user;
      Group = group;
      ExecStartPre = "+${generateConfig}";
      ExecStart = "${lib.getExe pkgs.recyclarr} sync --config ${dataDir}/recyclarr.yml --app-data ${dataDir}/data";
    };
  };

  users.users.${user} = {
    isSystemUser = true;
    group = group;
    home = dataDir;
  };

  users.groups.${group} = {};

  systemd.timers.recyclarr = {
    description = "Run Recyclarr daily";
    wantedBy = [ "timers.target" ];
    timerConfig = {
      OnCalendar = "daily";
      Persistent = true;
      RandomizedDelaySec = "1h";
    };
  };
}