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

let
  inherit (lib) mkIf mkMerge mkThenElse;
  annuaire = config.r6d.machines;
  currentMachine = annuaire."${config.networking.hostName}";
  flags = currentMachine.configurationFlags;
in

# TODO: changer adresse mail
mkIf flags.munin {

  # Paquets
  environment.systemPackages = with pkgs; [
    bc
    mailutils
  ];

  # Services

  ## Noeud de supervision munin = pas de stockage des données locales
  services.munin-node = {
    enable = true;
  };
  systemd.services.munin-node = {
    path = with pkgs; [ munin lm_sensors ];
    serviceConfig.TimeoutStartSec = "3min";
  };
  users.extraUsers.munin = {
    #extraGroups = [ "postfix" "root" ];
    extraGroups = [ "postfix" ];
  };

  # chmod a+rX -Rv /var/lib/postfix/queue/

  ## Munin server -- generate /var/www/munin
  services.munin-cron = {
    enable = true;
    hosts = ''
      [${config.networking.hostName}]
        address 127.0.0.1
    '';
    extraGlobalConfig = ''
      contact.email.command ${pkgs.mutt}/bin/mutt -F /etc/nixos/base/services/munin-muttrc -s "Munin notification for ''${var:host}" root@prunetwork.fr
    '';
  };

  # Réseau
  networking.firewall = {
    allowedTCPPorts = [
      #8000
    ];
    allowedUDPPorts = [
    ];
  };
}