<?php

namespace backend\models;

use Yii;
use yii\base\Model;
use yii\data\ActiveDataProvider;
use common\models\Waste;
use yii\db\Query;
use common\components\Helper;

/**
 * WasteSearch represents the model behind the search form about `common\models\Waste`.
 */
class WasteSearch extends Waste
{
    
	public $date_start;
	public $date_end;
	
	public $timestampStart;
	public $timestampEnd;
	
    
    /**
     * @inheritdoc
     */
    public function rules()
    {
        return [
            [['id_waste', 'count', 'id_product', 'stock_before', 'stock_after', 'id_user'], 'integer'],
            [['comment', 'created_at', 'updated_at'], 'safe'],
        		[[ 'date_start',  ], 'date'  , 'timestampAttribute' => 'timestampStart' ,'timestampAttributeFormat' => 'yyyy-MM-dd'  ],
        		[[ 'date_end' , ], 'date'    , 'timestampAttribute' => 'timestampEnd' ,'timestampAttributeFormat' => 'yyyy-MM-dd' ],
        ];
    }

    /**
     * @inheritdoc
     */
    public function scenarios()
    {
        // bypass scenarios() implementation in the parent class
        return Model::scenarios();
    }

    /**
     * Creates data provider instance with search query applied
     *
     * @param array $params
     *
     * @return ActiveDataProvider
     */
    public function search($params)
    {
//         $query = Waste::find();

    	$query = new Query();
    	$query->select([
    		"p.name as product_name",
    		'w.count as waste_count',
    		'w.created_at as waste_created_at',
    		'w.comment as waste_comment',
    		'w.stock_before as waste_stock_before',
    		'w.stock_after as waste_stock_after',
    		'u.username as user_username',
    	]);
		$query->from("waste as w");
		$query->innerJoin("product as p","p.id_product = w.id_product");
		$query->innerJoin("user as u","u.id = w.id_user");
    	
        $dataProvider = new ActiveDataProvider([
            'query' => $query,
        	'sort' =>[
        		'defaultOrder' => [
        			  'waste_created_at' => SORT_DESC  
        		],
        		'attributes' => Helper::mkYiiSortItems([
        		['product_name'],
        		['waste_count'],
        		['waste_created_at'],
        		['waste_comment'],
        		['waste_stock_before'],
        		['waste_stock_after'],
        		['user_username'],
        	 
        	])
        ]]);

        $this->load($params);

        if (!$this->validate()) {
            // uncomment the following line if you do not want to return any records when validation fails
            // $query->where('0=1');
            return $dataProvider;
        }

        $query->andFilterWhere([
        		'w.id_user' => $this->id_user,
        		'w.id_product' => $this->id_product,
        ]);
        
        if ( empty($this->date_start) ){
        	$this->timestampStart = '';
        }
        if ( empty($this->date_end) ){
        	$this->timestampEnd = '';
        }
        
        $query->andFilterWhere([ '>=', 'w.created_at', $this->timestampStart ]   );
        $query->andFilterWhere([ '<', 'w.created_at', $this->timestampEnd ]   );

        $query->andFilterWhere(['like', 'w.comment', $this->comment]);

        return $dataProvider;
    }
}