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

with lib;

let
  cfg = config.services.auto-pr;
in
{
  options.services.auto-pr = {
    enable = mkEnableOption "Cron job PR mise à jour automatique";
  };

  config = mkIf cfg.enable {

    systemd.services.auto-pr-bot = {
      description = "Création d'un PR si mise à jour";
      requires = ["network-online.target"];
      environment = { HOME = "/var/lib/auto-pr-bot"; };
      serviceConfig = {
        DynamicUser = true;
        CacheDirectory = "auto-pr-bot";
        StateDirectory = "auto-pr-bot";
        Type = "oneshot";
        ExecStart = with pkgs;
          let env = python3Packages.python.buildEnv.override {
            extraLibs = [ python3Packages.PyGithub python3Packages.pyjwt python3Packages.colorama ];
            ignoreCollisions = true;
          };
        in "${pkgs.writeShellScriptBin "run.sh" ''
          ${env}/bin/python ${pkgs.writeScript "pr-autobot.py" "${readFile ./pr-autobot.py}"} --private-key /var/lib/auto-pr-bot/private-key.pem --app-id 19565 --installation-id 407088 --repo nyanloutre/nixpkgs --cache-dir /var/cache/auto-pr-bot
        ''}/bin/run.sh";
      };
    };

    systemd.timers.auto-pr-bot = {
      description = "Timer auto PR bot";
      requires = ["network-online.target"];
      wantedBy = ["multi-user.target"];
      timerConfig = { OnCalendar = "daily"; Unit = "auto-pr-bot.service"; };
    };

  };

}