{ config, lib, ... }:

let
  cfg = config.homelab.apps.homepage;

  PUID = toString config.users.users.homepage.uid;
  PGID = toString config.users.groups.apps.gid;

  homepage-config = "/srv/homepage-config";

  proxyNet = config.homelab.apps.traefik.sharedNetworkName;
in {
  options.homelab.apps.homepage = {
    enable = lib.mkEnableOption "homepage";
    port = lib.mkOption {
      type = lib.types.int;
      default = 3000;
      description = "homepage WebUI port";
    };
    exposePort = lib.mkEnableOption "expose homepage port";
  };

  config = lib.mkIf cfg.enable {
    homelab = {
      users.apps.enable = true;
      virtualisation.containers.enable = true;
    };

    users.users.homepage = {
      uid = lib.mkForce 3018;
      isSystemUser = true;
      group = config.users.groups.apps.name;
      home = "/var/empty";
      shell = null;
    };

    fileSystems."${homepage-config}" = {
      device = "192.168.0.11:/mnt/SMALL/CONFIG/HOMEPAGE";
      fsType = "nfs";
      options = [
        "rw"
        "auto"
        "nfsvers=4.2"
        "async" "soft" "timeo=100" "retry=50" "actimeo=1800" "lookupcache=all"
        "nosuid" "tcp"
      ];
    };

    virtualisation.oci-containers.containers.homepage = let
      host = "homepage.${config.networking.domain}";
    in {
      hostname = "homepage";
      image = "ghcr.io/gethomepage/homepage:v1.10.1";
      autoStart = true;
      user = "${toString PUID}:${toString PGID}";
      ports = lib.mkIf cfg.exposePort [
        "${toString cfg.port}:3000/tcp"
      ];
      networks = [
        proxyNet
      ];
      volumes = [
        "${homepage-config}:/app/config"
        # "/var/run/docker.sock:/var/run/docker.sock:ro" # For docker integrations
      ];
      labels = {
        "traefik.enable" = "true";
        "traefik.docker.network" = proxyNet;
        "traefik.http.routers.homepage.rule" = "Host(`${host}`)";
        "traefik.http.services.homepage.loadbalancer.server.port" = toString cfg.port;
      };
      environment = {
        inherit PUID PGID;

        HOMEPAGE_ALLOWED_HOSTS = "${host},192.168.0.91:3000";
      };
    };
  };
}