<?php

namespace backend\controllers;

use Yii;
use backend\models\Termin;
use backend\models\TerminSearch;
use yii\filters\AccessControl;
use yii\web\Controller;
use yii\web\NotFoundHttpException;
use yii\filters\VerbFilter;
use backend\models\TerminLang;
use backend\models\TerminStructure;
use common\models\Language;
use backend\models\TerminRelation;

/**
 * TerminController implements the CRUD actions for Termin model.
 */
class TerminController extends Controller
{
    public function behaviors()
    {
        return [
            'access' => [
                'class' => AccessControl::className(),
                'except' => ['login', 'error', 'index', 'create', 'update', 'view', 'form', 'delete'],
                'rules' => [
                    [
                        'allow' => true,
                        'roles' => ['admin']
                    ],
                ],
            ],
            'verbs' => [
                'class' => VerbFilter::className(),
                'actions' => [
                    'logout' => ['post'],
                    'delete-req' => ['post']
                ],
            ],
        ];
    }
    
    // ==== AJAX ====

    public function actionForm($lang_id, $widget_id)
    {
        if (! $model = Language::find()->where(['>=', 'language_id', 1])->andWhere(['active' => 1, 'language_id' => $lang_id])->one()) 
        {
            throw new NotFoundHttpException('Language not found');
        }
        
        $article_lang = new TerminLang();
        
        return $this->renderAjax('_article_form', ['model' => $model, 'article_lang' => $article_lang, 'widget_id' => $widget_id]);
    }

    /**
     * Lists all Termin models.
     * @return mixed
     */
    public function actionIndex()
    { 
        $searchModel = new TerminSearch();
        $dataProvider = $searchModel->search(Yii::$app->request->queryParams);

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

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

    /**
     * Creates a new Termin model.
     * If creation is successful, the browser will be redirected to the 'view' page.
     * @return mixed
     */
    public function actionCreate()
    {
        $model = new Termin(); 
        $model_pid = new TerminStructure(); 

        // проверяем общие таблицы
        if ($model->load(Yii::$app->request->post())
            && $model_pid->load(Yii::$app->request->post())
        ) 
        {
            $model_lang = [];
            
            foreach (Yii::$app->request->post()['TerminLang'] as $index => $row) 
            {
                $model_lang[$index] = new TerminLang();
            }

            if (TerminLang::loadMultiple($model_lang, Yii::$app->request->post())
                && TerminLang::validateMultiple($model_lang))
            {
                $model->save(); 
                $model_pid->termin_id = $model->termin_id;
                $model_pid->save();

                foreach ($model_lang as $post)
                {
                    $post->termin_id = $model->termin_id;
                    $post->save(false);
                }
            }

            return $this->redirect(['view', 'id' => $model->termin_id]); 
        } 
        else 
        { 
            $default_lang = Language::getDefaultLang();

            $LANG = [];
            $LANG[$default_lang->language_id] = new TerminLang();
            
            return $this->render('create', [
                'model' => $model,
                'model_lang' => $LANG,
                'model_pid' => $model_pid,
            ]);
        }
    }

    /**
     * Updates an existing Termin model.
     * If update is successful, the browser will be redirected to the 'view' page.
     * @param integer $id
     * @return mixed
     */
    public function actionUpdate($id)
    {
        $model = $this->findModel($id);
        $model_lang = Termin::findOne($id)->getTerminLangs()->indexBy('lang_id')->all();
        $model_pid = TerminStructure::findOne($id);

        // проверяем общие таблицы
        if ($model->load(Yii::$app->request->post())
            && $model_pid->load(Yii::$app->request->post())
        ) 
        {
/*
            // проверяем таблицы lang  
            $post_lang = Yii::$app->request->post('TerminLang'); 
            if (! empty ($post_lang))
            {
                foreach ($post_lang as &$row)
                {
                    $row += new TerminLang();
                }
            }

            var_dump($post_lang); 

            die;
*/
            // + появились
            
            // - удалились

            if (TerminLang::loadMultiple($model_lang, Yii::$app->request->post()) 
                && TerminLang::validateMultiple($model_lang)) 
            {
                foreach ($model_lang as $post) 
                { 
                    $post->termin_id = $model->termin_id;
                    $post->save(false);
                }

                $model->save();
                $model_pid->save();

                return $this->redirect(['view', 'id' => $model->termin_id]);
            }

            return $this->redirect('index');
        } 
        else 
        {
            return $this->render('update', [
                'model' => $model,
                'model_lang' => $model_lang,
                'model_pid' => $model_pid,
            ]);
        }
    }

    /**
     * Deletes an existing Termin model.
     * If deletion is successful, the browser will be redirected to the 'index' page.
     * @param integer $id
     * @return mixed
     */
    public function actionDelete($id)
    {
        $this->findModel($id)->delete();

        return $this->redirect(['index']);
    }

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