<?php

namespace backend\controllers;

use yii\web\Controller;
use yii\filters\AccessControl;
use Yii;
use common\models\User;
use common\models\Commande;
use DateTime; 
use DateInterval; 
use DatePeriod; 

class StatsController extends BackendController {
    
    public function behaviors()
    {
        return [
            'access' => [
            	'class' => AccessControl::className(),
            	'rules' => [
            		[
                            'allow' => true,
                            'roles' => ['@'],
                            'matchCallback' => function ($rule, $action) {
                                    return Yii::$app->user->identity->status == USER::STATUS_ADMIN 
                                        || Yii::$app->user->identity->status == USER::STATUS_BOULANGER;
                            }
            		]
            	],
            ],
        ];
    }
    
    public function actionIndex() {
        
        /*
         *  Volume de commande de l'année passée (par mois)
         */
        
        $date_start = date('Y-m-d',time() - 60 * 60 * 24 * 365) ;
        $date_end = date('Y-m-d'); 
        
        $data_pain = [] ;
        
        // labels
        $data_labels = [] ;

        $start = new DateTime($date_start);
        $interval = new DateInterval('P1M');
        $end = new DateTime($date_end);
        
        $period = new DatePeriod($start, $interval, $end);
        
        foreach($period as $date) {
            $mois = date('m/Y',$date->getTimestamp()) ;
            $data_labels[] = $mois ; 
            $data_pain[$mois] = 0 ;
        }
        
        // commandes
        $commandes = Commande::find()
                ->with('commandeProduits')
                ->joinWith('production')
                ->where('production.date > '.$date_start)
                ->andWhere('production.id_etablissement = '.Yii::$app->user->identity->id_etablissement)
                ->all() ;
        
        foreach($commandes as $c) {
            $c->init(); 
            $mois = date('m/Y',strtotime($c->production->date)) ;
            if(isset($data_pain[$mois])) 
            {
                $data_pain[$mois] += $c->montant_pain ;
            }
        }
        
        // création d'un tableau sans index car chart.js n'accepte pas les index 
        $data_pain_noindex = [] ;
        foreach($data_pain as $key => $val)
        {
                $data_pain_noindex[] = $val ;
        }
        
        return $this->render('index', [
            'data_labels' => $data_labels,
            'data_pain' => $data_pain_noindex,
        ]); 
        
    }
    
}


?>