<?php

namespace frontend\controllers;

use Yii;
use common\models\InventoryItem;
use frontend\models\InventoryItemSearch;
use yii\web\Controller;
use yii\web\NotFoundHttpException;
use yii\filters\VerbFilter;
use backend\models\InventoryItemForm;
use common\models\Inventory;
use yii\helpers\Url;
use common\models\Product;

/**
 * InventoryItemController implements the CRUD actions for InventoryItem model.
 */
class InventoryItemController extends Controller
{
    public function behaviors()
    {
        return [
            'verbs' => [
                'class' => VerbFilter::className(),
                'actions' => [
                    'delete' => ['post'],
                ],
            ],
        ];
    }

    /**
     * Lists all InventoryItem models.
     * @param $id
     * @return mixed
     * @throws NotFoundHttpException
     * @throws \PHPExcel_Exception
     * @throws \PHPExcel_Reader_Exception
     * @throws \PHPExcel_Writer_Exception
     */
    public function actionIndex($id)
    {
    	$inventory = Inventory::findOne($id);
    	
    	if ( !isset($inventory)){
    		throw new NotFoundHttpException("Leltár nem található");
    	}
    	
        $searchModel = new InventoryItemSearch(['inventory' => $inventory]);
        $dataProvider = $searchModel->search(Yii::$app->request->queryParams);
        
        $productOptions = Product::buildProductAndInventoryGroupList();
        
        if ($searchModel->output == 'xls') {
        	$this->downloadIndexXls($dataProvider);
        }else{
        	Url::remember(Url::current(),"inventory-item-index");
        }

        
        return $this->render('index', [
        	'model' => $inventory,
            'searchModel' => $searchModel,
            'dataProvider' => $dataProvider,
        	'productOptions' =>$productOptions
        ]);
    }


    /**
     * @param $dataProvider
     * @throws \PHPExcel_Exception
     * @throws \PHPExcel_Reader_Exception
     * @throws \PHPExcel_Writer_Exception
     */
    protected function downloadIndexXls($dataProvider){
    	
    	
    		$defs = [['item_created_at', 'Létrehozva'],	
    		 			['item_name', 'Termék/Termék csoport'],	
    		 			['user_username', 'Felhasználó'],	
    		 			['item_count_prev', 'Előző leltár (db)'],	
    		 			['item_count_sold', 'Eladott mennyiség (db)'],	
    		 			['item_count_in', 'Beszerzett mennyiség (db)'],	
    		 			['item_count', 'Leltározott mennyiség (db)'],	
    		 			['item_difference', 'Különbség (db)'],	
    		 			['item_count_system', 'Rendszer szerinti mennyiség (db)'],	
	];    		
    		$cols = ['A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P'];
    	
    		$models = $dataProvider->getModels ();
			$objPHPExcel = new \PHPExcel ();
			
			$sheet = $objPHPExcel->setActiveSheetIndex ( 0 );
			/**
			 * Termék azonosító Termék neve Termék szám Termék vonalkód Termék raktáron Termék eladva
			 */
			$row = 1;
			$col = 0;
			foreach ( $defs as $def ) {
				$sheet->setCellValue ( $cols [$col] . $row, $def [1] );
				$col ++;
			}
			
			foreach ( $models as $model ) {
				$row ++;
				$col = 0;
				foreach ( $defs as $def ) {
					$sheet->setCellValue ( $cols [$col] . $row, $model[$def [0]] );
					$col ++;
				}
			}
			
			$styleArray = array (
					'font' => array (
							'bold' => true 
					) 
			);
    		// 'color' => array('rgb' => 'FF0000'),
    		// 'size' => 15,
    		// 'name' => 'Verdana'
    			
    			
    		foreach ( range ( 'A', 'I' ) as $columnID ) {
    			$sheet->getColumnDimension ( $columnID )->setAutoSize ( true );
    			$sheet->getStyle ( $columnID . '1' )->applyFromArray ( $styleArray );
    		}
    			
    		// Redirect output to a client’s web browser (Excel5)
    		header ( 'Content-Type: application/vnd.ms-excel' );
    		header ( 'Content-Disposition: attachment;filename="leltar.xls"' );
    		header ( 'Cache-Control: max-age=0' );
    		// If you're serving to IE 9, then the following may be needed
    		header ( 'Cache-Control: max-age=1' );
    		// If you're serving to IE over SSL, then the following may be needed
    		header ( 'Expires: Mon, 26 Jul 1997 05:00:00 GMT' ); // Date in the past
    		header ( 'Last-Modified: ' . gmdate ( 'D, d M Y H:i:s' ) . ' GMT' ); // always modified
    		header ( 'Cache-Control: cache, must-revalidate' ); // HTTP/1.1
    		header ( 'Pragma: public' ); // HTTP/1.0
    		$objWriter = \PHPExcel_IOFactory::createWriter ( $objPHPExcel, 'Excel5' );
    		$objWriter->save ( 'php://output' );
    		exit ();
    }

    /**
     * Displays a single InventoryItem model.
     * @param integer $id
     * @return mixed
     * @throws NotFoundHttpException
     */
    public function actionView($id)
    {
        return $this->render('view', [
            'model' => $this->findModel($id),
        ]);
    }

    /**
     * Creates a new InventoryItem model.
     * If creation is successful, the browser will be redirected to the 'view' page.
     * @return mixed
     * @throws \Exception
     */
    public function actionCreate($id)
    {
        $model = new InventoryItemForm([
        		'id_inventory' => $id
        ]);

        $model->read();
        
        if ($model->load(Yii::$app->request->post()) && $model->save()) {
            return $this->redirect(['inventory-item/index', 'id' => $model->inventory->id_inventory]);
        } else {
            return $this->render('create', [
                'model' => $model,
            ]);
        }
    }

    /**
     * Updates an existing InventoryItem model.
     * If update is successful, the browser will be redirected to the 'view' page.
     * @param integer $id
     * @return mixed
     * @throws NotFoundHttpException
     */
    public function actionUpdate($id)
    {
        $model = $this->findModel($id);
        $inventory = Inventory::findOne($model->id_inventory);

        if ($model->load(Yii::$app->request->post()) && $model->save()) {
        	
        	$prev = Url::previous("inventory-item-index");
        	if ( isset($prev)){
        		return $this->redirect($prev);
        	}else{
            	return $this->redirect([ 'index', 'id' => $inventory->id_inventory ]);
        	}
        	
        } else {
            return $this->render('update', [
                'model' => $model,
            	'inventory' => $inventory,
            ]);
        }
    }

    /**
     * Deletes an existing InventoryItem model.
     * If deletion is successful, the browser will be redirected to the 'index' page.
     * @param integer $id
     * @return mixed
     * @throws NotFoundHttpException
     * @throws \yii\db\StaleObjectException
     */
    public function actionDelete($id)
    {
        $item = $this->findModel($id);
        $id_inventory = $item->id_inventory;
        $item->delete();

        return $this->redirect(['index', 'id' => $id_inventory]);
    }

    /**
     * Finds the InventoryItem model based on its primary key value.
     * If the model is not found, a 404 HTTP exception will be thrown.
     * @param integer $id
     * @return InventoryItem the loaded model
     * @throws NotFoundHttpException if the model cannot be found
     */
    protected function findModel($id)
    {
        if (($model = InventoryItem::findOne($id)) !== null) {
            return $model;
        } else {
            throw new NotFoundHttpException('The requested page does not exist.');
        }
    }
}