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

with lib;

let
  cfg = config.services.site-max;
in
{
  options.services.site-max = {
    enable = mkEnableOption "Site Max Spiegel";

    port = mkOption {
      type = types.int;
      example = 54321;
      description = "Local listening port";
    };

    domaine = mkOption {
      type = types.str;
      example = "example.com";
      description = "Domaine à utiliser";
    };
  };

  config = mkIf cfg.enable {

    services.haproxy-acme.services = {
      ${cfg.domaine} = { ip = "127.0.0.1"; port = cfg.port; auth = false; };
    };

    services.nginx = {
      virtualHosts = {
        "max" = {
          listen = [ { addr = "127.0.0.1"; port = cfg.port; } ];
          locations."/" = {
            root = "/run/site-max/result";
          };
        };
      };
    };

    systemd.services.build-site-max = {
      description = "Compilation du site de Max Spiegel";
      requires = ["network-online.target"];
      path = with pkgs;[ git nix ];
      environment = { HOME = "/var/lib/site-max"; NIX_PATH = "nixpkgs=/nix/var/nix/profiles/per-user/root/channels/nixos/nixpkgs"; };

      serviceConfig = {
        DynamicUser = true;
        RuntimeDirectory = "site-max";
        RuntimeDirectoryPreserve = "yes";
        CacheDirectory = "site-max";
        Type = "oneshot";
        ExecStart = "${pkgs.writeShellScriptBin "build.sh" ''
          set -x
          set -e
          GIT_CLONE_DIR=/var/cache/site-max

          if [ ! -d $GIT_CLONE_DIR/.git ]; then
            git clone --depth 1 https://github.com/nyanloutre/site-max.git $GIT_CLONE_DIR
          else
            git -C $GIT_CLONE_DIR pull
          fi

          nix-build -o /run/site-max/result $GIT_CLONE_DIR
        ''}/bin/build.sh";
      };
    };

    systemd.timers.build-site-max = {
      description = "Timer de compilation du site de Max";
      requires = ["network-online.target"];
      wantedBy = ["multi-user.target"];
      timerConfig = { OnCalendar = "*:0/5"; Unit = "build-site-max.service"; };
    };

  };
}