<?php
require_once __DIR__ . '/system-config.class.php';
require_once __DIR__ . '/database-manager.class.php';

class DB
{
	public $query = NULL;
	private $sqlResult = NULL;
	public $connection = null;
	private $dbManager = null;
	private $empresaId = null;
	private $isMaster = false;
	private $projectStatus = "test";
	
	public function setSqlHost($value)
	{
		// Mantener para compatibilidad, pero ya no se usa internamente
	}
	
	public function getSqlHost()
	{
		$config = $this->isMaster ? 
			SystemConfig::getMasterDatabaseConfig() : 
			SystemConfig::getEmpresaDatabaseConfig($this->empresaId);
		return $config['host'];
	}

	public function setSqlDatabase($value)
	{
		// Mantener para compatibilidad, pero ya no se usa internamente
	}
	
	public function getSqlDatabase()
	{
		$config = $this->isMaster ? 
			SystemConfig::getMasterDatabaseConfig() : 
			SystemConfig::getEmpresaDatabaseConfig($this->empresaId);
		return $config['database'];
	}

	public function setSqlUser($value)
	{
		// Mantener para compatibilidad, pero ya no se usa internamente
	}
	
	public function getSqlUser()
	{
		$config = $this->isMaster ? 
			SystemConfig::getMasterDatabaseConfig() : 
			SystemConfig::getEmpresaDatabaseConfig($this->empresaId);
		return $config['user'];
	}

	public function setSqlPassword($value)
	{
		// Mantener para compatibilidad, pero ya no se usa internamente
	}
	
	public function getSqlPassword()
	{
		$config = $this->isMaster ? 
			SystemConfig::getMasterDatabaseConfig() : 
			SystemConfig::getEmpresaDatabaseConfig($this->empresaId);
		return $config['password'];
	}

	public function setQuery($value)
	{
		$this->query = $value;
	}
	
	public function getQuery()
	{
		return $this->query;
	}

	public function setProjectStatus($value)
	{
		$this->projectStatus = $value;
	}
	
	public function getProjectStatus()
	{
		return $this->projectStatus;
	}

	function __construct($useMaster = false, $empresaId = null)
	{
		$this->dbManager = DatabaseManager::getInstance();
		$this->isMaster = $useMaster;
		
		if ($useMaster) {
			$this->connection = $this->dbManager->getMasterConnection();
		} else {
			if ($empresaId !== null) {
				$this->empresaId = $empresaId;
				$this->connection = $this->dbManager->getEmpresaConnection($empresaId);
			} elseif (isset($_SESSION['empresaId'])) {
				$this->empresaId = $_SESSION['empresaId'];
				try {
					$this->connection = $this->dbManager->getEmpresaConnection($_SESSION['empresaId']);
				} catch (Exception $e) {
					// Fallback a master si la BD de empresa no existe
					$this->isMaster = true;
					$this->connection = $this->dbManager->getMasterConnection();
				}
			} else {
				// Fallback directo a master
				$this->isMaster = true;
				$this->connection = $this->dbManager->getMasterConnection();
			}
		}
	}

public function DatabaseConnect() 
	{
		// Ya no se necesita, la conexión se maneja mediante DatabaseManager
		return true;
	}
	
	public function ExecuteQuery()
	{
		//TODO we might want to add some security in the queries here, but that can be done later, this is the place

		if($this->projectStatus == "test")
		{
				//echo "<br><br>".$this->query."<br><br>";
//				print_r(debug_backtrace());
	    	if ($this->connection instanceof MockDatabase) {
            $this->sqlResult = $this->connection->query($this->query);
        } else {
            $this->sqlResult = mysqli_query($this->connection, $this->query) or die (trigger_error($this->query . " " . mysqli_error($this->connection)));
        }
		}	
		else
		{
			$this->sqlResult = @mysqli_query($this->connection, $this->query);
		}	
	}
	
  function GetResult()
	{
  	$retArray = array();

		$this->ExecuteQuery();
		
	  while($rs = $this->connection instanceof MockDatabase ? $this->sqlResult->fetch_assoc() : mysqli_fetch_assoc($this->sqlResult))
		{
	    	$retArray[] = $rs;
		}	

    $this->CleanQuery();

    return $retArray;
  }

  function GetResultById($id = NULL)
	{
  	$retArray = array();

		$this->ExecuteQuery();
		
	  while($rs=mysqli_fetch_assoc($this->sqlResult))
		{
	    	$retArray[$rs[$id]] = $rs;
		}	

    $this->CleanQuery();

    return $retArray;
  }

  function GetTotalRows()
	{
		$this->ExecuteQuery();
		
		if ($this->connection instanceof MockDatabase) {
            return $this->sqlResult->num_rows;
        } else {
            return mysqli_num_rows($this->sqlResult);
        }
  }

  function GetRow()
	{
		$this->ExecuteQuery();

	  if ($this->connection instanceof MockDatabase) {
            $rs = $this->sqlResult->fetch_assoc();
        } else {
            $rs = mysqli_fetch_assoc($this->sqlResult);
        }

    $this->CleanQuery();

    return $rs;
  }

  function GetSingle()
	{
		$this->ExecuteQuery();

		if ($this->connection instanceof MockDatabase) {
            $row = $this->sqlResult->fetch_array();
        } else {
            $row = mysqli_fetch_array($this->sqlResult);
        }
		$rs = $row[0];

		if(!$rs)
			$rs = 0;
			
    $this->CleanQuery();

    return $rs;
  }

  function InsertData()
	{
		$this->ExecuteQuery();
		if ($this->connection instanceof MockDatabase) {
            $last_id = $this->connection->insert_id();
        } else {
            $last_id = mysqli_insert_id($this->connection);
        }

    $this->CleanQuery();

    return $last_id;
  }

  function UpdateData()
	{
		$this->ExecuteQuery();

		if ($this->connection instanceof MockDatabase) {
            $return = $this->connection->affected_rows();
        } else {
            $return = mysqli_affected_rows($this->connection);
        }

  	$this->CleanQuery();

    return $return;
  }

  function DeleteData()
	{
		return $this->UpdateData();
  }
	
  function CleanQuery()
	{
    if ($this->connection instanceof MockDatabase) {
            $this->sqlResult->free();
        } else {
            // Only free if it's actually a result object, not a boolean
            if ($this->sqlResult instanceof mysqli_result) {
                @mysqli_free_result($this->sqlResult);
            }
        }
    //$this->query = "";
  }
	
	function EnumSelect( $table , $field )
	{
		$this->query = "SHOW COLUMNS FROM `$table` LIKE '$field' ";
		$this->ExecuteQuery();

		$row = mysqli_fetch_array( $this->sqlResult , MYSQLI_NUM );
		$regex = "/'(.*?)'/";

		preg_match_all( $regex , $row[1], $enum_array );
		$enum_fields = $enum_array[1];

		return( $enum_fields );
	}	
}

?>