{ pkgs, config, lib, inputs, ... }:

let
  nixservice = "home-assistant";
  service = "hass";
  cfg = config.homelab.${service};
  sec = config.sops.secrets;
  homelab = config.homelab;
in
{
  options.homelab.${service} = {
    enable = lib.mkEnableOption "enables ${service}";

    # set port options
    port = lib.mkOption {
      type = lib.types.int;
      default = 7704;
      description = "set port for ${service} (default: ${toString cfg.port}";
    };
    url = lib.mkOption {
      type = lib.types.str;
      default = "${service}.${homelab.base_domain}";
      description = "set domain for ${service}";
    };
    data_dir = lib.mkOption {
      type = lib.types.str;
      default = "/var/lib/${service}";
      description = "set data directory for ${service}";
    };
    ids = lib.mkOption {
      type = lib.types.int;
      default = cfg.port;
      description = "set uid and pid of ${service} user (matches port by default)";
    };
    backup = lib.mkOption {
      type = lib.types.bool;
      default = true;
      description = "enable backups for ${service}";
    };
    motd = lib.mkOption {
      type = lib.types.nullOr lib.types.str;
      default = "podman-hass";
    };
  };

  config = lib.mkIf cfg.enable {
    
    # declare ${service} group
    users.groups.${service} = { gid = lib.mkForce cfg.ids; };

    # declare ${service} user
    users.users.${service} = {
      description = "${service} server user";
      uid = lib.mkForce cfg.ids;
      isSystemUser = true;
      home = cfg.data_dir;
      createHome = true;
      group = service;
      extraGroups = [];
    };

    # still suss as fuck bro man fuck
    virtualisation.oci-containers.containers = {
      hass = {
        image = "homeassistant/home-assistant:stable";
        autoStart = true;
        extraOptions = [
          "--pull=newer"
          "--network=host"
        ];
        volumes = [
          "${cfg.data_dir}:/config"
        ];
#        ports = [
#          "0.0.0.0:7704:8123"
#          "0.0.0.0:4141:4141"
#        ];
        environment = {
          TZ = homelab.tz;
          PUID = toString config.users.users.${service}.uid;
          PGID = toString config.users.groups.${service}.gid;
        };
      };
    };

    # override umask to make permissions work out
    systemd.services.${service}.serviceConfig = {
      UMask = lib.mkForce "0007";
    };

    # open firewall
    networking.firewall.allowedTCPPorts = [ cfg.port 8123 ];

    # add to caddy for reverse proxy
    services.caddy.virtualHosts."${cfg.url}" = {
      serverAliases = [ "${service}.${homelab.public_domain}" ];
      extraConfig = ''
        tls ${sec."ssl_blakedheld_crt".path} ${sec."ssl_blakedheld_key".path}
        reverse_proxy 127.0.0.1:${toString cfg.port}
      '';
    };

    # add to glance
    homelab.glance.links.services = [{
      title = "home assistant";
      url = "https://hass.${homelab.public_domain}";
      error-url = "http://${homelab.host_ip}:${toString cfg.port}";
      check-url = "http://${homelab.host_ip}:${toString cfg.port}";
      icon = "di:${nixservice}"; }];

    # add to backups
    homelab.backups.baks = {
      ${service} = { paths = [ cfg.data_dir ]; };
    };
  };
}



# here lies my tough, and I mean fucking tough, swing at
# getting this to work bare metal, ggs ill see you again
# - didnt take long
# --------------------------------------------------------------------------------
#    # enable the ${service} service
#    services.${nixservice} = {
#      enable = true;
#      package = inputs.nixpkgs-unstable.legacyPackages.${pkgs.system}.home-assistant;
#      extraComponents = [
#        # required for onboarding
#        "analytics"
#        "google_translate"
#        "met"
#        "radio_browser"
#        "shopping_list"
#        "isal"
#        "default_config"
#        "mqtt"
#      ];
#      extraPackages = python3Packages: with python3Packages; [
#        psycopg2
#        universal-silabs-flasher
#        getmac
#        zha
#        ha-silabs-firmware-client
#        paho-mqtt
#        aiomqtt
#        aiounifi
#        ibeacon-ble
#      ];
#      # imperative config
#      config = null;
#      lovelaceConfig = null;
#      configDir = cfg.data_dir;
#      # declartive poggers!
##      config = {
##        # Includes dependencies for a basic setup
##        default_config = {};
##      };
#    };