<?php

namespace Config {

  require_once 'Settings.class.php';

  class Database {
    // database credentials
    private $host;
    private $db_name = "iimt_mathcloud";
    private $username = "newuser";
    private $password = "password";

    // 
    protected $cnx = null;

    /**
     * 
     */
    public function __construct($name) {
      $this->db_name = $name;
      $this->host = Settings::getDatabaseHostname();
    }
    
    /**
     * Get the database connection. 
     */
    public function getConnection() {
      if ($this->cnx == null) {
        try {
          $this->cnx = new \PDO("mysql:host=" . $this->host . ";dbname=" . $this->db_name, $this->username, $this->password, array(\PDO::MYSQL_ATTR_INIT_COMMAND => "SET NAMES 'utf8'"));
        }
        catch(PDOException $e){
          throw new Exception($e->getMessage());
        }
      }
      return $this->cnx;
    }

    /**
     * Get the database connection (admin). 
     */
    public function getAdminConnection() {
      if ($this->cnx == null) {
        try {
          $this->cnx = new \PDO("mysql:host=" . $this->host . ";dbname=" . $this->db_name."_admin", $this->username, $this->password, array(\PDO::MYSQL_ATTR_INIT_COMMAND => "SET NAMES 'utf8'"));
        }
        catch(PDOException $e){
          throw new Exception($e->getMessage());
        }
      }
      return $this->cnx;
    }

    /**
     * Get the database connection (audit). 
     */
    public function getAuditConnection() {
      if ($this->cnx == null) {
        try {
          $this->cnx = new \PDO("mysql:host=" . $this->host . ";dbname=" . $this->db_name."_audit", $this->username, $this->password, array(\PDO::MYSQL_ATTR_INIT_COMMAND => "SET NAMES 'utf8'"));
        }
        catch(PDOException $e){
          throw new Exception($e->getMessage());
        }
      }
      return $this->cnx;
    }
  }

}

?>