{
  pkgs,
  config,
  service_configs,
  lib,
  ...
}:
let
  radarrConfig = "${service_configs.radarr.dataDir}/config.xml";
  sonarrConfig = "${service_configs.sonarr.dataDir}/config.xml";
  configPath = "/var/lib/recyclarr/config.json";

  # Runs as root (via + prefix) after the NixOS module writes config.json.
  # Extracts API keys from radarr/sonarr config.xml and injects them via jq.
  injectApiKeys = pkgs.writeShellScript "recyclarr-inject-api-keys" ''
    RADARR_KEY=$(${lib.extractArrApiKey radarrConfig})
    SONARR_KEY=$(${lib.extractArrApiKey sonarrConfig})
    ${pkgs.jq}/bin/jq \
      --arg rk "$RADARR_KEY" \
      --arg sk "$SONARR_KEY" \
      '.radarr.movies.api_key = $rk | .sonarr.series.api_key = $sk' \
      ${configPath} > ${configPath}.tmp
    mv ${configPath}.tmp ${configPath}
    chown recyclarr:recyclarr ${configPath}
  '';
in
{
  imports = [
    (lib.serviceMountWithZpool "recyclarr" service_configs.zpool_ssds [
      service_configs.recyclarr.dataDir
    ])
  ];

  systemd.tmpfiles.rules = [
    "d ${service_configs.recyclarr.dataDir} 0755 recyclarr recyclarr -"
  ];

  services.recyclarr = {
    enable = true;
    command = "sync";
    schedule = "daily";
    user = "recyclarr";
    group = "recyclarr";

    configuration = {
      radarr.movies = {
        base_url = "http://localhost:${builtins.toString service_configs.ports.private.radarr.port}";

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

        # Extend the template's quality profile with lower-resolution fallbacks
        quality_profiles = [
          {
            name = "Remux + WEB 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"; }
              { name = "Bluray-720p"; }
              {
                name = "WEB 720p";
                qualities = [
                  "WEBDL-720p"
                  "WEBRip-720p"
                ];
              }
              { name = "HDTV-720p"; }
            ];
          }
        ];

        custom_formats = [
          # DV (w/o HDR fallback) - block releases with DV that lack HDR10 fallback
          {
            trash_ids = [ "923b6abef9b17f937fab56cfcf89e1f1" ];
            assign_scores_to = [
              { name = "Remux + WEB 2160p"; }
            ];
          }
        ];
      };

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

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

        # Extend the template's quality profile with lower-resolution fallbacks
        quality_profiles = [
          {
            name = "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"; }
              { name = "Bluray-720p"; }
              {
                name = "WEB 720p";
                qualities = [
                  "WEBDL-720p"
                  "WEBRip-720p"
                ];
              }
              { name = "HDTV-720p"; }
            ];
          }
        ];

        custom_formats = [
          # DV (w/o HDR fallback) - block releases with DV that lack HDR10 fallback
          {
            trash_ids = [ "9b27ab6498ec0f31a3353992e19434ca" ];
            assign_scores_to = [
              { name = "WEB-2160p"; }
            ];
          }
        ];
      };
    };
  };

  # Re-sync immediately on deploy when the recyclarr config changes
  systemd.services.recyclarr = {
    restartTriggers = [ (builtins.toJSON config.services.recyclarr.configuration) ];
    after = [
      "network-online.target"
      "radarr.service"
      "sonarr.service"
    ];
    wants = [ "network-online.target" ];
    serviceConfig.ExecStartPre = [ "+${injectApiKeys}" ];
  };
}