# vim:fileencoding=utf-8:foldmethod=marker
{
  config,
  lib,
  pkgs,
  ...
}:
let
  inherit (lib) mkIf mkOption mkEnableOption;
  inherit (lib.types) port bool;
  cfg = config.modules.container.paperless-ngx;
in
{
  options.modules.container.paperless-ngx = {
    enable = mkEnableOption "paperless-ngx container";
    port = mkOption {
      default = 8000;
      description = "The port on which the paperless service will be reachable.";
      type = port;
    };
    openPort = mkOption {
      default = false;
      description = "Wether the port should be publicly accessible.";
      type = bool;
    };
  };

  config = mkIf cfg.enable {
    modules.container.enable = true;

    networking.firewall.allowedTCPPorts = mkIf cfg.openPort [ cfg.port ];

    #: {{{ Webserver
    virtualisation.oci-containers.containers."paperless-webserver" = {
      image = "ghcr.io/paperless-ngx/paperless-ngx:latest";
      environment = {
        "PAPERLESS_REDIS" = "redis://broker:6379";
        "PAPERLESS_ADMIN_USER" = "admin";
        "PAPERLESS_ADMIN_PASSWORD" = "password";
      };
      volumes = [
        "paperless_data:/usr/src/paperless/data:rw"
        "paperless_media:/usr/src/paperless/media:rw"
      ];
      ports = [
        "8000:8000/tcp"
      ];
      dependsOn = [
        "paperless-broker"
      ];
      log-driver = "journald";
      extraOptions = [
        "--network-alias=webserver"
        "--network=paperless_default"
      ];
    };
    systemd.services."podman-paperless-webserver" = {
      serviceConfig = {
        Restart = lib.mkOverride 500 "always";
      };
      after = [
        "podman-network-paperless_default.service"
        "podman-volume-paperless_data.service"
        "podman-volume-paperless_media.service"
      ];
      requires = [
        "podman-network-paperless_default.service"
        "podman-volume-paperless_data.service"
        "podman-volume-paperless_media.service"
      ];
      partOf = [
        "podman-compose-paperless-root.target"
      ];
      wantedBy = [
        "podman-compose-paperless-root.target"
      ];
    };
    #: }}}

    #: {{{ Redis Broker
    virtualisation.oci-containers.containers."paperless-broker" = {
      image = "docker.io/library/redis:7";
      volumes = [
        "paperless_redisdata:/data:rw"
      ];
      log-driver = "journald";
      extraOptions = [
        "--network-alias=broker"
        "--network=paperless_default"
      ];
    };
    systemd.services."podman-paperless-broker" = {
      serviceConfig = {
        Restart = lib.mkOverride 500 "always";
      };
      after = [
        "podman-network-paperless_default.service"
        "podman-volume-paperless_redisdata.service"
      ];
      requires = [
        "podman-network-paperless_default.service"
        "podman-volume-paperless_redisdata.service"
      ];
      partOf = [
        "podman-compose-paperless-root.target"
      ];
      wantedBy = [
        "podman-compose-paperless-root.target"
      ];
    };
    #: }}}

    #: {{{ Network
    systemd.services."podman-network-paperless_default" = {
      path = [ pkgs.podman ];
      serviceConfig = {
        Type = "oneshot";
        RemainAfterExit = true;
        ExecStop = "podman network rm -f paperless_default";
      };
      script = ''
        podman network inspect paperless_default || podman network create paperless_default
      '';
      partOf = [ "podman-compose-paperless-root.target" ];
      wantedBy = [ "podman-compose-paperless-root.target" ];
    };
    #: }}}

    #: {{{ Volumes
    systemd.services."podman-volume-paperless_data" = {
      path = [ pkgs.podman ];
      serviceConfig = {
        Type = "oneshot";
        RemainAfterExit = true;
      };
      script = ''
        podman volume inspect paperless_data || podman volume create paperless_data
      '';
      partOf = [ "podman-compose-paperless-root.target" ];
      wantedBy = [ "podman-compose-paperless-root.target" ];
    };
    systemd.services."podman-volume-paperless_media" = {
      path = [ pkgs.podman ];
      serviceConfig = {
        Type = "oneshot";
        RemainAfterExit = true;
      };
      script = ''
        podman volume inspect paperless_media || podman volume create paperless_media
      '';
      partOf = [ "podman-compose-paperless-root.target" ];
      wantedBy = [ "podman-compose-paperless-root.target" ];
    };
    systemd.services."podman-volume-paperless_redisdata" = {
      path = [ pkgs.podman ];
      serviceConfig = {
        Type = "oneshot";
        RemainAfterExit = true;
      };
      script = ''
        podman volume inspect paperless_redisdata || podman volume create paperless_redisdata
      '';
      partOf = [ "podman-compose-paperless-root.target" ];
      wantedBy = [ "podman-compose-paperless-root.target" ];
    };
    #: }}}

    # Root service
    # When started, this will automatically create all resources and start
    # the containers. When stopped, this will teardown all resources.
    systemd.targets."podman-compose-paperless-root" = {
      unitConfig = {
        Description = "Root target generated by compose2nix.";
      };
      wantedBy = [ "multi-user.target" ];
    };
  };
}