<?php

/**
 * Main Class
 * @author franzz
 * @version 2.3
 */
abstract class Main extends PhpObject
{
	//Constants
	const SUCCESS = 'success';
	const ERROR = 'error';
	const UNAUTHORIZED = 'unauthorized';
	const NOT_FOUND = 'unknown action';
	const NO_DATA = 'No Data';
	
	const ACTIVE = 1;
	const INACTIVE = 0;
	
	//Folders
	const MASKS_FOLDER = 'masks/';
	
	/**
	 * Class Management
	 * @var ClassManagement
	 */
	protected $oClassManagement;
	
	/**
	 * DB Handle
	 * @var Db
	 */
	protected $oDb;
	
	//Dates format
	const URL_DATE_FORMAT = 'Ymd';
	const LAYOUT_DATE_FORMAT = 'F \t\h\e jS, Y';
	const MYSQL_DATE_FORMAT = 'Y-m-d';
	const LAYOUT_TIME_FORMAT = 'G:i';
	
	//Variables
	protected $asMasks;
	protected $asContext;
	
	/**
	 * Language Translator
	 * @var Translator
	 */
	protected $oLang;

	/**
	 * Main constructor
	 * @param ClassManagement $oClassManagement
	 * @param string $sLang
	 */
	public function __construct($oClassManagement, $sProcessPage, $asMandatoryClasses=array(), $bDb=true, $sFile=__FILE__, $sTimeZone='')
	{
		parent::__construct($sFile, Settings::DEBUG);
		$this->oClassManagement = $oClassManagement;
		
		//Load classes
		$asMandatoryClasses[] = array('name'=>'mask', 'project'=>false);
		if($bDb) $asMandatoryClasses[] = array('name'=>'db', 'project'=>false);
		foreach($asMandatoryClasses as $asClass) $this->oClassManagement->incClass($asClass['name'], $asClass['project']);
		
		$this->setContext($sProcessPage, $sTimeZone);

		//Init objects
		if($bDb) {
			$this->oDb = new Db(Settings::DB_SERVER, Settings::DB_LOGIN, Settings::DB_PASS, Settings::DB_NAME, $this->getSqlOptions() , Settings::DB_ENC);
			if(in_array($this->oDb->sDbState, array(Db::DB_NO_DATA, Db::DB_NO_TABLE))) $this->install();
		}
	}
	
	protected abstract function install();
	
	public function getDbBuildScript() {
		return $this->oDb->getFullInstallQuery();
	}
	
	private function setContext($sProcessPage, $sTimeZone='')
	{
		die(print_r(($sTimeZone=='')?Settings::TIMEZONE:$sTimeZone, true));
		
		//Browser <> PHP <> MySql synchronization
		date_default_timezone_set(($sTimeZone=='')?Settings::TIMEZONE:$sTimeZone);
		ini_set('default_charset', Settings::TEXT_ENC);
		header('Content-Type: text/html; charset='.Settings::TEXT_ENC);
		mb_internal_encoding(Settings::TEXT_ENC);
		mb_http_output(Settings::TEXT_ENC);
		mb_http_input(Settings::TEXT_ENC);
		mb_language('uni');
		mb_regex_encoding(Settings::TEXT_ENC);
		
		$this->asContext['process_page'] = basename($sProcessPage);
	
		$sServerName = array_key_exists('SERVER_NAME', $_SERVER)?$_SERVER['SERVER_NAME']:$_SERVER['PWD'];
		$sScheme = array_key_exists('HTTP_X_FORWARDED_PROTO', $_SERVER)?$_SERVER['HTTP_X_FORWARDED_PROTO']:$_SERVER['REQUEST_SCHEME'];
		$sAppPath = $sScheme.'://'.str_replace(array('http://', 'https://'), '', $sServerName.dirname($_SERVER['SCRIPT_NAME']));
		$this->asContext['serv_name'] = $sAppPath.(mb_substr($sAppPath, -1)!='/'?'/':'');
	
		$this->setMasks();
	}
	
	public static function addTimestampToFilePath($sFilePath)
	{
		//Remove timestamp
		$sCleanedFilePath = preg_replace('/(.*)\?[\d]{14}$/', '$1', $sFilePath);
		
		//Add timestamp
		return file_exists($sCleanedFilePath)?$sCleanedFilePath.'?'.date("YmdHis", filemtime($sCleanedFilePath)):$sFilePath;
	}
	
	public function addUncaughtError($sError)
	{
		$this->addError('Uncaught errors:'."\n".$sError);
	}
	
	/* Building main pages */
	
	public function getMainPage($asGlobalVars=array(), $sMainPage='index', $asMainPageTags=array())
	{
		$asDefaultConsts = array('success'=>self::SUCCESS, 'error'=>self::ERROR, 'process_page'=>$this->asContext['process_page']);
		$asGlobalVars['consts'] = array_merge($asDefaultConsts, array_key_exists('consts', $asGlobalVars)?$asGlobalVars['consts']:array());
		
		//Masks
		$asPages = array_values($this->asMasks);
		foreach($asPages as $sPage)
		{
			//$sPageContent = $this->getPageContent($sPage);
			$oMask = new Mask($sPage, $this->oLang);
			$sPageContent = $oMask->getMask();
			if($sPage!=$sMainPage) $asGlobalVars['consts']['pages'][$sPage] = $sPageContent;
		}
		
		if(!is_null($this->oLang)) {
			$asGlobalVars['consts']['lang_prefix'] = Mask::LANG_PREFIX;
			$asGlobalVars['consts']['lang'] = $this->oLang->getTranslations();
		}
		
		$oMainMask = new Mask($sMainPage, $this->oLang);
		$oMainMask->setTag('GLOBAL_VARS', json_encode($asGlobalVars));
		$oMainMask->setTags($asMainPageTags);
		
		return $oMainMask->getMask();
	}
	
	protected function getPageContent($sPage)
	{
		return ToolBox::fixEOL(file_get_contents(self::MASKS_FOLDER.$sPage.'.html'));
	}
	
	/* DB structure. See Db::__construct */
	
	protected abstract function getSqlOptions();

	private function setMasks()
	{
		//List all available masks
		$asMaskPaths = glob(Mask::getMaskFile('*'));
		$this->asMasks =  array_map('basename', $asMaskPaths, array_fill(1, count($asMaskPaths), Mask::MASK_EXT));
	}
	
	public static function getJsonResult($bSuccess, $sDesc, $asVars=array())
	{
		header('Content-type: application/json');
		$asResult = self::getResult($bSuccess, $sDesc, $asVars);
		$asResult['result'] = $asResult['result']?self::SUCCESS:self::ERROR;
		return json_encode($asResult);
	}
	
	public static function getResult($bSuccess, $sDesc, $asVars=array()) {
		return array('result'=>$bSuccess, 'desc'=>$sDesc, 'data'=>$asVars);
	}
	
	public static function goTo403() {
		header('HTTP/1.1 403 Forbidden');
		exit;
	}
}