{ config, lib, ... }:

with lib;
let
  cfg = config.modules.services.postgresql;
in
{
  options.modules.services.postgresql = {
    enable = mkEnableOption "postgresql with laxed limits";
  };

  config = mkIf cfg.enable {
    services.postgresql = {
      enable = true;
      settings = {
        max_connections = "300";
        shared_buffers = "80MB";
      };
      authentication = lib.mkForce ''
        # Generated file; do not edit!
        # TYPE  DATABASE        USER            ADDRESS                 METHOD
        local   all             all                                     trust
        host    all             all             127.0.0.1/32            trust
        host    all             all             ::1/128                 trust
      '';
    };
    services.postgresqlBackup.enable = true;

    modules.persistence.directories = [
      "/var/lib/postgresql"
      "/var/backup/postgresql"
    ];
  };
}