<?php

final class Errors {
		
	// Errors from -32000 to -32099 => Server error	:Reserved for implementation-defined server-errors.
	const E_PARSE_ERROR 		= "-32700";	
	const E_INVALID_REQUEST 	= "-32600";
	const E_METHOD_NOT_FOUND 	= "-32601";
	const E_INVALID_PARAMS 		= "-32602";
	const E_INTERNAL_ERROR 		= "-32603";	

	const E_HTTP_NOT_FOUND		= "404";
	const E_UNKNOWN_ERROR		= "500";
	
	
	// Errors inherited from Expresso Application.	
	const LOGIN_SUCCESS_LOGOUT 			= "1";
	const LOGIN_SESSION_EXPIRED 		= "2";
	const LOGIN_NOT_LOGGED_IN 			= "3";
	const LOGIN_COOKIES_REQUIRED 		= "4";
	const LOGIN_BADLOGIN 				= "5";
	const LOGIN_PASSWORD_EXPIRED 		= "6";
	const LOGIN_AUTH_INVALID 			= "7";
	const LOGIN_SESSION_NOT_VERIFIED 	= "10";
	const LOGIN_ACCOUNT_EXPIRED 		= "98";
	const LOGIN_LOGIN_BLOCKED 			= "99";
	const LOGIN_INVALID_LOGIN 			= "200";
	

	const CATALOG_MIN_ARGUMENT_SEARCH	= "1001";	
	const MAIL_NOT_SENT					= "1002";
	const MAIL_TRASH_NOT_CLEANED		= "1003";
	
	static private $reservedErrors = array (			
		self::E_PARSE_ERROR 		=> "Parse error",
		self::E_INVALID_REQUEST 	=> "Invalid Request",
		self::E_METHOD_NOT_FOUND 	=> "Method not found",
		self::E_INVALID_PARAMS 		=> "Invalid params",
		self::E_INTERNAL_ERROR		=> "Internal error",
		self::E_HTTP_NOT_FOUND		=> 'A resource matching URI "%1" was not found',
		self::E_UNKNOWN_ERROR		=> "HTTP Unknown error"
	);
	
	
	// Errors inherited from Expresso Application.
	static private $applicationErrors = array(			

		self::LOGIN_SUCCESS_LOGOUT 			=> "You have been successfully logged out",
		self::LOGIN_SESSION_EXPIRED 		=> "Sorry, your login has expired",
		self::LOGIN_NOT_LOGGED_IN 			=> "You are not logged in",
		self::LOGIN_COOKIES_REQUIRED 		=> "Cookies are required to login to this site.",
		self::LOGIN_BADLOGIN 				=> "bad login or password",
		self::LOGIN_PASSWORD_EXPIRED 		=> "Your password has expired, and you do not have access to change it",
		self::LOGIN_AUTH_INVALID			=> "Your auth is invalid",
		self::LOGIN_SESSION_NOT_VERIFIED	=> "Your session could not be verified.",
		self::LOGIN_ACCOUNT_EXPIRED 		=> "Account is expired",
		self::LOGIN_LOGIN_BLOCKED			=> "Blocked, too many attempts!",
		self::LOGIN_INVALID_LOGIN			=> "Bad login or password",
		self::CATALOG_MIN_ARGUMENT_SEARCH	=> "Your search argument must be longer than %1 characters.",
		self::MAIL_NOT_SENT					=> "Your mail could not be sent.",
		self::MAIL_TRASH_NOT_CLEANED		=> "Your trash folder could not be cleaned."
	);
		
	static public function set($code, $message){
		return array ("code" => $code, "message" => $message);
	}

	static public function get($code, $argument = false){
		$errors = self::$reservedErrors + self::$applicationErrors;		
		$message = $errors[$code];
		if(!$message)
			$message = $errors[self::E_UNKNOWN_ERROR];
		if($argument)
			$message = str_replace("%1", $argument, $message);		
		
		return array ("code" => $code, "message" => $message); 
	}
	
	static public function getResponse($request, $responseException){			
			$response = new Response($request);
			$response->code = Response::OK;
			$response->addHeader('content-type', 'application/json');
			if($request->id)
				$body['id']	= $request->id;
			
			$code	 = $responseException->getCode();
			$error = Errors::get($code);			
			$message = ($responseException->getMessage() ? $responseException->getMessage() : $error['message']);			
			$body['error'] = array("code" => $code, "message" => $message);		
			$response->body = json_encode($body);
			return $response;
	}
		
}