<?php

class User extends PhpObject {
	
	//DB Tables
	const USER_TABLE = 'users';
	
	//Cookie
	const COOKIE_ID_USER = 'subscriber';
	
	/**
	 * Database Handle
	 * @var Db
	 */
	private $oDb;
	
	//User Info
	private $iUserId;
	private $asUserInfo;
	
	public function __construct(Db &$oDb) {
		parent::__construct(__CLASS__, Settings::DEBUG);
		$this->oDb = &$oDb;
		$this->iUserId = 0;
		$this->asUserInfo = array('name'=>'', 'email'=>'', 'language'=>'', 'active'=>0);
		$this->checkUserCookie();
	}
	
	public function getLang() {
		return $this->asUserInfo['language'];
	}
	
	public function addUser($sEmail, $sLang) {
		$bSuccess = false;
		$sDesc = '';
		$sEmail = trim($sEmail);
		
		//Check Email availability
		$iUserId = $this->oDb->selectValue(self::USER_TABLE, Db::getId(self::USER_TABLE), array('email'=>$sEmail, 'active'=>true));
		
		if($iUserId > 0) $sDesc = 'lang:nl_email_exists';
		else {
			//Add/Reactivate user
			$iUserId = $this->oDb->insertUpdateRow(self::USER_TABLE, array('email'=>$sEmail, 'language'=>$sLang, 'active'=>true), array('email'));
			if($iUserId==0) $sDesc = 'lang:error_commit_db';
			else $bSuccess = true;
		}

		//Set Cookie (valid 1 year)
		if($iUserId > 0) {
			$this->setUserId($iUserId);
			$this->updateCookie();
		}
		
		return Spot::getResult($bSuccess, $sDesc, $this->getUserInfo());
	}
	
	public function removeUser() {
		$bSuccess = false;
		$sDesc = '';
		
		if($this->iUserId > 0) {
			$iUserId = $this->oDb->updateRow(self::USER_TABLE, $this->iUserId, array('active'=>false));
			if($iUserId==0) $sDesc = 'lang:error_commit_db';
			else $bSuccess = true;
		}
		else $sDesc = 'lang:nl_unknown_email';
		
		return Spot::getResult($bSuccess, $sDesc);
	}
	
	public function updateNickname($sNickname) {
		if($this->iUserId > 0 && $sNickname!='') $this->oDb->updateRow(self::USER_TABLE, $this->iUserId, array('name'=>$sNickname));
	}
	
	private function checkUserCookie() {
		if(isset($_COOKIE[self::COOKIE_ID_USER])){
			$this->setUserId($_COOKIE[self::COOKIE_ID_USER]);
			
			//Extend cookie life
			if($this->iUserId > 0) $this->updateCookie();
		}
	}
	
	public function getUserId() {
		return $this->iUserId;
	}
	
	public function getUserInfo() {
		$asUserInfo = $this->asUserInfo;
		$asUserInfo[Db::getId(self::USER_TABLE)] = $this->iUserId;
		return $asUserInfo;
	}
	
	public function setUserId($iUserId) {
		$this->iUserId = 0;
		
		$asUser = $this->oDb->selectRow(self::USER_TABLE, array(Db::getId(self::USER_TABLE)=>$iUserId, 'active'=>true), array_keys($this->asUserInfo));
		if(!empty($asUser)) {
			$this->iUserId = $iUserId;
			$this->asUserInfo = $asUser;
		}
	}
	
	private function updateCookie() {
		setcookie(self::COOKIE_ID_USER, $this->iUserId, time() + 60 * 60 * 24 * 365);
	}
}