<?php
if(!interface_exists('ReportBuilderInterface')){
	include_once APP_BASE_PATH.'admin/reports/reportClasses/ReportBuilderInterface.php';
}
abstract class ReportBuilder{

	protected function execute($report, $query, $parameters){
		$report->DB()->SetFetchMode(ADODB_FETCH_ASSOC);
		LogManager::getInstance()->debug("Query: ".$query);
		LogManager::getInstance()->debug("Parameters: ".json_encode($parameters));
		$rs = $report->DB()->Execute($query,$parameters);
		if(!$rs){
			LogManager::getInstance()->info($report->DB()->ErrorMsg());
			return array("ERROR","Error generating report");
		}
		
		$reportNamesFilled = false;
		$columnNames = array();
		$reportData = array();
		foreach ($rs as $rowId => $row) {
			$reportData[] = array();
			if(!$reportNamesFilled){
				$countIt = 0;
				foreach ($row as $name=> $value){
					$countIt++;
					$columnNames[$countIt] = $name;
					$reportData[count($reportData)-1][] = $value;
				}
				$reportNamesFilled = true;
			}else{
				foreach ($row as $name=> $value){
					$reportData[count($reportData)-1][] = $this->transformData($name, $value);
				}
			}
		}
		
		
		array_unshift($reportData,$columnNames);
		
		return $reportData;
	}

	
	public function transformData($name, $value){
		return $value;	
	}

	public function createReportFile($report, $data){
		$fileFirstPart = "Report_".str_replace(" ", "_", $report->name)."-".date("Y-m-d_H-i-s");
		$fileName = $fileFirstPart.".csv";

		$fileFullName = CLIENT_BASE_PATH.'data/'.$fileName;
		$fp = fopen($fileFullName, 'w');

		foreach ($data as $fields) {
			fputcsv($fp, $fields);
		}

		fclose($fp);
		return array($fileFirstPart, $fileName, $fileFullName);
	}

	public function saveFile($fileFirstPart, $file, $fileFullName){
		$uploadedToS3 = false;

		$uploadFilesToS3 = SettingsManager::getInstance()->getSetting("Files: Upload Files to S3");
		$uploadFilesToS3Key = SettingsManager::getInstance()->getSetting("Files: Amazon S3 Key for File Upload");
		$uploadFilesToS3Secret = SettingsManager::getInstance()->getSetting("Files: Amazone S3 Secret for File Upload");
		$s3Bucket = SettingsManager::getInstance()->getSetting("Files: S3 Bucket");
		$s3WebUrl = SettingsManager::getInstance()->getSetting("Files: S3 Web Url");

		if($uploadFilesToS3.'' == '1' && !empty($uploadFilesToS3Key)
			&& !empty($uploadFilesToS3Secret) && !empty($s3Bucket) && !empty($s3WebUrl)){

			$uploadname = CLIENT_NAME."/".$file;
			$s3FileSys = new S3FileSystem($uploadFilesToS3Key, $uploadFilesToS3Secret);
			$res = $s3FileSys->putObject($s3Bucket, $uploadname, $fileFullName, 'authenticated-read');

			if(empty($res)){
				return array("ERROR",$file);
			}

			unlink($fileFullName);
			$file_url = $s3WebUrl.$uploadname;
			$file_url = $s3FileSys->generateExpiringURL($file_url);
			$uploadedToS3 = true;
		}


		$fileObj = new File();
		$fileObj->name = $fileFirstPart;
		$fileObj->filename = $file;
		$fileObj->file_group = "Report";
		$ok = $fileObj->Save();

		if(!$ok){
			LogManager::getInstance()->info($fileObj->ErrorMsg());
			return array("ERROR","Error generating report");
		}
		
		$reportFile = new ReportFile();
		$reportFile->name = $fileObj->filename;
		$reportFile->attachment = $fileObj->name;
		$reportFile->created = date("Y-m-d H:i:s");
		$reportFile->employee = BaseService::getInstance()->getCurrentProfileId();
		$ok = $reportFile->Save();

		if(!$ok){
			LogManager::getInstance()->info($reportFile->ErrorMsg());
			return array("ERROR","Error generating report");
		}


		if($uploadedToS3){
			return array("SUCCESS",$file_url);
		}else{
			return array("SUCCESS",$file);
		}
	}
}


class CSVReportBuilder extends ReportBuilder{
	public function getData($report,$request){
		$query = $this->getMainQuery();
		$where = $this->getWhereQuery($request);
		if($query == null || $where == null){
			return null;
		}
		$query.=" ".$where[0];
		return $this->execute($report, $query, $where[1]);
	}	
}


class ClassBasedReportBuilder extends ReportBuilder{
		
}

class PDFReportBuilder extends ReportBuilder{
	
	var $twig;

	protected function getDefaultData(){
		$defaultData = array();
		$defaultData['BASE_URL'] = BASE_URL;
		$defaultData['LOGO'] = UIManager::getInstance()->getCompanyLogoUrl();
		$defaultData['LOGO'] = str_replace("https:","http:",$defaultData['LOGO']);
		$defaultData['companyName'] = SettingsManager::getInstance()->getSetting("Company: Name");
		LogManager::getInstance()->debug("Logo Url:".$defaultData['LOGO']);
		return $defaultData;
	}
	
	protected function initTemplateEngine($report){
		if($report->_table = "UserReports"){
			$path = APP_BASE_PATH."modules/reports/customTemplates/";
		}else{
			$path = APP_BASE_PATH."admin/reports/customTemplates/";
		}
		$loader = new Twig_Loader_Filesystem($path);
		$twigOptions = array();
		//false
		if(defined('CACHE_THEME') && CACHE_THEME){
			$twigOptions = array(
			);
		}else{
			$twigOptions = array(
				"cache"=>false
			);
		}
		$this->twig = new Twig_Environment($loader, $twigOptions);
	}

	public function createReportFile($report, $data){
		$fileFirstPart = "Report_".str_replace(" ", "_", $report->name)."-".date("Y-m-d_H-i-s");
		$fileName = $fileFirstPart.".html";

		$fileFullName = CLIENT_BASE_PATH.'data/'.$fileName;

		$this->initTemplateEngine($report);

		$template = $this->twig->loadTemplate($this->getTemplate());
		$result = $template->render($data);
		
		
		$fp = fopen($fileFullName, 'w');
		fwrite($fp,$result);
		fclose($fp);

		try{
			$fileFullNamePdf = CLIENT_BASE_PATH.'data/'.$fileFirstPart.".pdf";
			//Try generating the pdf
			exec(WK_HTML_PATH." ".$fileFullName." ".$fileFullNamePdf, $output, $ret);

			LogManager::getInstance()->debug("wkhtmltopdf:".print_r($output,true));
			LogManager::getInstance()->debug("wkhtmltopdf:".print_r($ret,true));

			if(file_exists($fileFullNamePdf)){
				$fileName = $fileFirstPart.".pdf";
				$fileFullName = $fileFullNamePdf;
			}
		}catch(Exception $exp){

		}
		return array($fileFirstPart, $fileName, $fileFullName);
	}
}