<?php

namespace frontend\models;

use Yii;
use yii\base\Model;
use yii\data\ActiveDataProvider;
use common\models\Transfer;
use yii\base\Object;
use yii\db\Query;
use yii\db\Expression;
use common\models\Account;

use yii\helpers\ArrayHelper;
/**
 * TransferSearch represents the model behind the search form about `common\models\Transfer`.
 */
class TransferSearch extends Transfer
{
	
	public $start;
	public $end;
	
	public $timestampStart;
	public $timestampEnd;
	
	public $totalsCreatedAt = ['total' => 0, 'accounts' =>[] ];
	public $totalsCreatedAtNotPaid= ['total' => 0, 'accounts' =>[]];
	public $totalsCreatedAtPaid= ['total' => 0, 'accounts' =>[]];
	public $totalsPaidAt= ['total' => 0, 'accounts' =>[]];
	
	
	public $accounts;
	
	public $types;
	
    /**
     * @inheritdoc
     */
    public function rules()
    {
        return [
//         	[[ 'start',  ], 'date'  , 'timestampAttribute' => 'timestampStart' ,'timestampAttributeFormat' => 'yyyy-MM-dd'  ],
//         	[[ 'end' , ], 'date'    , 'timestampAttribute' => 'timestampEnd' ,'timestampAttributeFormat' => 'yyyy-MM-dd' ],
        		
        	[[ 'start',  ], 'date', 'format' =>Yii::$app->formatter->datetimeFormat  , 'timestampAttribute' => 'timestampStart' ,'timestampAttributeFormat' => 'yyyy-MM-dd HH:mm' ,'timeZone' => 'UTC' ],
        	[[ 'end' , ], 'date'  ,'format' =>Yii::$app->formatter->datetimeFormat  , 'timestampAttribute' => 'timestampEnd' ,'timestampAttributeFormat' => 'yyyy-MM-dd HH:mm' ,'timeZone' => 'UTC' ],
        		
			[ [ 'id_account'  ] , 'integer'],
        	['types', 'each', 'rule' => ['integer']],
// 			[ [ 'types'  ], function ($attribute, $params) {
// 					if (!is_array($this->$attribute)) {
// 						$this->addError($attribute, 'Invalid array');
// 					}
// 				}],
        ];
    }


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

        $dataProvider = new ActiveDataProvider([
            'query' => $query,
        ]);

        $this->load($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([
            'id_account' => $this->id_account,
            'type' => $this->type,
        ]);
        
        $query->andFilterWhere(['in' ,'type', $this->types]);

        $created_condition = ['and',[ '>=', 'transfer.created_at', $this->timestampStart ] ,[ '<', 'transfer.created_at', $this->timestampEnd ]  ];
        $paid_condition = ['and',[ '>=', 'transfer.paid_at', $this->timestampStart ] ,[ '<', 'transfer.paid_at', $this->timestampEnd ]  ];
        
        $query->andFilterWhere(['or' , $created_condition , $paid_condition]);
        
        return $dataProvider;
    }
    
    
    protected function mkTotalQuery($mode){
    	
    	$query = new Query();
    	
    	$query->addSelect( [
    			new Expression( 'transfer.id_account as account'),
    			new Expression( ' COALESCE(sum(  ( case when direction =  '.Transfer::DIRECTION_OUT.' then  -1 else  1 end )*  transfer.money ),0) as money' )
    	
    	]);
    	$query->from('transfer');
    	
    	$query->andFilterWhere([
    			'id_account' => $this->id_account,
    			'type' => $this->type,
    			]);

    	$query->andWhere(['id_user' => Yii::$app->user->id]);
    	
    	$query->andFilterWhere(['in' ,'type', $this->types]);
    	
    	
    	if ( $mode == 'created_at'){
	     	$query->andFilterWhere([ '>=', 'transfer.created_at' , $this->timestampStart ]   );
    	    $query->andFilterWhere([ '<' , 'transfer.created_at'  , $this->timestampEnd ]   );
    	}else if ( $mode == 'paid_at'){
	     	$query->andFilterWhere([ '>=', 'transfer.paid_at' , $this->timestampStart ]   );
    	    $query->andFilterWhere([ '<' , 'transfer.paid_at'  , $this->timestampEnd ]   );
    	}else if ( $mode == 'created_at_not_paid'){
	     	$query->andFilterWhere([ "transfer.status" => Transfer::STATUS_NOT_PAID  ]   );
    	    $query->andFilterWhere([ '>=', 'transfer.created_at' , $this->timestampStart ]   );
    	    $query->andFilterWhere([ '<' , 'transfer.created_at'  , $this->timestampEnd ]   );
    	}else if ( $mode == 'created_at_paid'){
	     	$query->andFilterWhere([ "transfer.status" => Transfer::STATUS_PAID  ]   );
    	   	$query->andFilterWhere([ '>=', 'transfer.created_at' , $this->timestampStart ]   );
    	    $query->andFilterWhere([ '<' , 'transfer.created_at'  , $this->timestampEnd ]   );
    	}
    	
    	$query->groupBy('transfer.id_account');
    	
    	return $query;
    	
    	
    }
    
    protected function mkTransferTotalsWithZeroValue( ){
    	$result = [];
    	
    	foreach (  $this->accounts as $a ){
    		$accountTotal = [
    				'id_account' => $a->id_account,
    				'label' => $a->name,
    				'money' => 0
    		];
    		
    		$result[] = $accountTotal;
    	}
    	return $result;
    }
    
   
    protected function mkTotalsResult($queryResult,$accountMap){
    	
    	$totals = [];
    	$totals['total'] = 0;
    	
    	$totals['accounts'] = [];
    	
    	foreach ($queryResult as $item){
    		$account = "";
    		if ( array_key_exists($item['account'], $accountMap)){
    			$account = $accountMap[$item['account']];
    		}
    		 
    		$accountTotal = [
    				'id_account' => $item['account'],
    				'label' => 	$account,
    				'money' => $item['money']
    		];
    		$totals['accounts'][] = $accountTotal;
    		$totals['total'] += $item['money'];
    	}
    	return $totals;
    }
    
    protected function findByAccountInQueryResult($queryResult, $account){
    	$result = null;
    	foreach ($queryResult as $item){
    		if( $item['account'] == $account->id_account ){
    			$result = $item;
    		}
    	}
    	return $result;
    }
    
    protected function mkTotalsResultWithAllAvailableAccount($queryResult,$accountMap){
    	
    	$totals = [];
    	$totals['total'] = 0;
    	
    	$totals['accounts'] = [];
    	
    	foreach ($this->accounts as $account){
//     		echo  'account="'. $this->id_account .'"<br>';
    		if ( isset($this->id_account) &&  is_numeric($this->id_account)  && $this->id_account != $account->id_account  ){
    			continue ;
    		}
    		$accountTotal = [
    				'id_account' => $account->id_account,
    				'label' => 	$account->name,
    				'money' => 0,
    		];
    		
    		$item = $this->findByAccountInQueryResult($queryResult, $account);
    		
    		if ( isset($item)){
    			$accountTotal['money'] = $item['money'];
    		}
    		 
    		$totals['accounts'][] = $accountTotal;
    		$totals['total'] += $accountTotal['money'];
    	}
    	return $totals;
    }
    
    
    public function mkPaidAtTotals($accountMap){
    	$query =  $this->mkTotalQuery('paid_at');
    	$command = $query->createCommand();
    	$result = $command->queryAll();
    	
//     	$paidAtTotals = $this->mkTotalsResult($result, $accountMap);
    	$paidAtTotals = $this->mkTotalsResultWithAllAvailableAccount($result, $accountMap);
    	
    	return $paidAtTotals;
    }
    
    public function mkCreatedAtTotals($accountMap){
    	$query =  $this->mkTotalQuery('created_at');
    	$command = $query->createCommand();
    	$result = $command->queryAll();
    	
    	$createdAtTotals = $this->mkTotalsResultWithAllAvailableAccount($result, $accountMap);
    	
    	return $createdAtTotals;
    }
    
    public function mkCreatedAtNotPaidTotals($accountMap){
    	$query =  $this->mkTotalQuery('created_at_not_paid');
    	$command = $query->createCommand();
    	$result = $command->queryAll();
    	
    	$createdAtTotals = $this->mkTotalsResultWithAllAvailableAccount($result, $accountMap);
    	
    	return $createdAtTotals;
    }
    
    public function mkCreatedAtPaidTotals($accountMap){
    	$query =  $this->mkTotalQuery('created_at_paid');
    	$command = $query->createCommand();
    	$result = $command->queryAll();
    	 
    	$createdAtTotals = $this->mkTotalsResultWithAllAvailableAccount($result, $accountMap);
    	 
    	return $createdAtTotals;
    }
    
    
    public function totalsTransfers($params){
    	$accountTotals = [];
    	$fullTotal = [
    			'label' => Yii::t('common/transfer', 'Total'),
    			'money' => 0
    	];
    	
    	if ( $this->hasErrors() ){
    		return;	
    	}
    	
    	$accounts =  Account::find()->orderBy("name asc")->all();
    	$accountMap = ArrayHelper::map( $accounts ,'id_account','name' );
    	
		$this->totalsCreatedAt = $this->mkCreatedAtTotals($accountMap);
		$this->totalsPaidAt = $this->mkPaidAtTotals($accountMap);
		$this->totalsCreatedAtPaid = $this->mkCreatedAtPaidTotals($accountMap);
		$this->totalsCreatedAtNotPaid = $this->mkCreatedAtNotPaidTotals($accountMap);
    
    }
    
}