<?php

class StorageException extends Exception {

	public function __construct($message = null, $code = 0, Exception $previous = null) {
		if (is_array($message)) {
			if (count($message) > 0) {
				$dsErrors = array();
				foreach ($message as $vMsg) {
					$dsErrors[] = self::parseMessage($vMsg);
				}
				$message = implode("\n", $dsErrors);
			} else {
				$message = 'XXX' . json_encode($message);
			}
		} else {
			$message = self::parseMessage($message);
		}
		return parent::__construct($message, $code, $previous);
	}

	public static function parseMessage($message) {
		$parsedMsg = $message;
		//echo "\nMSG: ({$message})\n";
		//echo "\nMSG substr(0, 7): (" . substr($message, 0, 7) . ") substr(-15): (" . substr($message, -15) . ")\n";
		if ("Table '" == substr($message, 0, 7) && "' doesn't exist" == substr($message, -15)) {
			//  #1146 - Table '{DATABASE_NAME}.WARNING: Update all paths' doesn't exist
			//  #1146 - Table '{DATABASE_NAME}.ERROR: Loop detected ID=P_ID' doesn't exist
			//  #1146 - Table '{DATABASE_NAME}.ERROR: Parent item not exists' doesn't exist
			//  #1146 - Table '{DATABASE_NAME}.ERROR: Loop detected in path' doesn't exist
			$tmpMsg = $message;
			$tmpMsg = substr($tmpMsg, 7);
			$tmpMsg = substr($tmpMsg, 0, -15);
			if (false !== ($pos = strpos($tmpMsg, 'WARNING:'))) {
				$tmpMsg = substr($tmpMsg, $pos + 9);
			}
			if (false !== ($pos = strpos($tmpMsg, 'ERROR:'))) {
				$tmpMsg = substr($tmpMsg, $pos + 7);
			}
			//echo "\ntmpMsg: ({$tmpMsg})\n";
			switch ($tmpMsg) {
				case 'Update all paths': {
					$parsedMsg = "Zaktualizuj ścieżki projektów!";
					break;
				}
				case 'Loop detected ID=P_ID': {
					$parsedMsg = "Nr rekordu nadrzędnego musi różnić się od nr rekordu";
					break;
				}
				case 'Parent item not exists': {
					$parsedMsg = "Nie istnieje rekord o numerze podanym jako nr nadrzędny";
					break;
				}
				case 'Loop detected in path': {
					$parsedMsg = "Nieprawidłowy nr nadrzędny";
					break;
				}
			}
		}
		return $parsedMsg;
	}

}