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

let cfg = config.services.dragons;
in {
  options.services.dragons = {
    enable = lib.mkEnableOption "Enable the dragons service";
    port = lib.mkOption {
      type = lib.types.int;
      default = 3000;
      description = ''
        The port on which dragons will listen for
        incoming HTTP traffic.
      '';
    };
    keep = lib.mkOption {
      type = lib.types.path;
      default = "/var/dragons/keep";
      description = "Keep location";
    };
    depo = lib.mkOption {
      type = lib.types.path;
      default = "/var/dragons/depo";
      description = "depo location";
    };
    package = lib.mkOption {
      type = lib.types.package;
      description = "dragons package to use";
    };
  };
  config = lib.mkIf cfg.enable {
    systemd.services.dragons = {
      path = [ cfg.package pkgs.git ];
      wantedBy = [ "multi-user.target" ];
      preStart = ''
        mkdir -p ${cfg.keep}
        mkdir -p ${cfg.depo}
      '';
      script = ''
        ${cfg.package}/bin/dragons
      '';
      description = ''
        Dragons
      '';
      serviceConfig = {
        Environment = [
          "PORT=${toString cfg.port}"
          "AREA=Live"
          "DEPO=${cfg.depo}"
          "KEEP=${cfg.keep}"
        ];
        EnvironmentFile = "/run/dragons/env";
        KillSignal = "INT";
        Type = "simple";
        Restart = "on-abort";
        RestartSec = "1";
      };
    };
  };
}