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path: root/modules/nixos/rss-bridge.nix
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{
  config,
  lib,
  pkgs,
  ...
}: let
  cfg = config.services.rss-bridge;
in {
  options.services.rss-bridge = {
    debug = lib.mkEnableOption "debug mode";
    extraBridges = lib.mkOption {
      type = lib.types.listOf (lib.types.submodule {
        options = {
          name = lib.mkOption {
            type = lib.types.strMatching "[a-zA-Z0-9]*";
            description = ''
              The name of the bridge.
              It need not include 'Bridge' at the end, unlike required in RSS-Bridge.
            '';
            example = "SomeAppWithANewsletter";
          };
          source = lib.mkOption {
            type = lib.types.path;
            description = ''
              The path to a file whose contents is the PHP sourcecode of the bridge.
              See also the RSS-Bridge documentation: https://rss-bridge.github.io/rss-bridge/Bridge_API/index.html.
            '';
          };
        };
      });
      default = [];
      description = ''
        A list of additional bridges that aren't already included in RSS-Bridge.
        These bridges are automatically whitelisted'';
    };
  };

  config.services.rss-bridge.config.system.enabled_bridges =
    lib.mkIf cfg.enable
    (map (bridge: bridge.name) cfg.extraBridges);
  config.services.nginx = lib.mkIf (cfg.virtualHost != null) {
    virtualHosts.${cfg.virtualHost}.root =
      lib.mkIf (cfg.extraBridges != [])
      (lib.mkForce (pkgs.runCommand "rss-bridge" {} (''
          mkdir -p $out/bridges
          cp -r ${cfg.package}/* $out/
          pushd $out/bridges
        ''
        + lib.concatStrings (map (bridge: ''
            ln -sf ${bridge.source} "${bridge.name}Bridge.php"
          '')
          cfg.extraBridges)
        + ''
          popd
        ''
        + lib.optionalString cfg.debug ''
          touch $out/DEBUG
        '')));
  };
}