<?php

namespace backend\controllers;
use developeruz\db_rbac\behaviors\AccessBehavior;
use common\components\artboxtree\ArtboxTreeHelper;
use Yii;
use common\modules\product\models\Category;
use common\modules\product\models\CategorySearch;
use yii\helpers\ArrayHelper;
use yii\web\Controller;
use yii\web\NotFoundHttpException;
use yii\filters\VerbFilter;
use yii\filters\AccessControl;
use yii\web\UploadedFile;

/**
 * CategoryController implements the CRUD actions for Category model.
 */
class CategoryController extends Controller
{
    /**
     * @inheritdoc
     */
    public function behaviors()
    {
        return [
            'access'=>[
                'class' => AccessBehavior::className(),
                'rules' =>
                    ['site' =>
                        [
                            [
                                'actions' => ['login', 'error'],
                                'allow' => true,
                            ]
                        ]
                    ]
            ],
            'verbs' => [
                'class' => VerbFilter::className(),
                'actions' => [
                    'logout' => ['post'],
                ],
            ],
        ];
    }

    /**
     * Lists all Category models.
     * @return mixed
     */
    public function actionIndex()
    {
        $searchModel = new CategorySearch();
        $dataProvider = $searchModel->search(Yii::$app->request->queryParams);

        return $this->render('index', [
            'searchModel' => $searchModel,
            'dataProvider' => $dataProvider,
        ]);
    }

    /**
     * Displays a single Category model.
     * @param integer $id
     * @return mixed
     */
    public function actionView($id)
    {
        return $this->render('view', [
            'model' => $this->findModel($id),
        ]);
    }

    /**
     * Creates a new Category model.
     * If creation is successful, the browser will be redirected to the 'view' page.
     * @return mixed
     */
    public function actionCreate()
    {
        $model = new Category();

        if ($model->load(Yii::$app->request->post())) {
            if ( ($image = UploadedFile::getInstance($model, 'imageUpload')) ) {
                $model->image = $image->name;
            }

            if ($model->save() && $image) {
                $image->saveAs(Yii::getAlias('@imagesDir/categories/' . $image->name));
            }

            return is_null(Yii::$app->request->post('create_and_new')) ? $this->redirect(['view', 'id' => $model->category_id]) : $this->redirect(array_merge(['create'], Yii::$app->request->queryParams));
        } else {
            if (!empty(Yii::$app->request->queryParams['parent'])) {
                $model->parent_id = Yii::$app->request->queryParams['parent'];
            }
            return $this->render('create', [
                'model' => $model,
                'categories' => ArtboxTreeHelper::treeMap(Category::find()->getTree(), 'category_id', 'name', '.')
            ]);
        }
    }

    /**
     * Updates an existing Category 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);

        if ($model->load(Yii::$app->request->post())) {
            if ( ($image = UploadedFile::getInstance($model, 'imageUpload')) ) {
                $model->image = $image->name;
            }

            if ($model->save() && $image) {
                $image->saveAs(Yii::getAlias('@imagesDir/categories/' . $image->name));
            }

            return $this->redirect(['view', 'id' => $model->category_id]);
        } else {
            return $this->render('update', [
                'model' => $model,
                'categories' => ArtboxTreeHelper::treeMap(Category::find()->getTree(), 'category_id', 'name', '.')
            ]);
        }
    }

    /**
     * Deletes an existing Category 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 Category model based on its primary key value.
     * If the model is not found, a 404 HTTP exception will be thrown.
     * @param integer $id
     * @return Category the loaded model
     * @throws NotFoundHttpException if the model cannot be found
     */
    protected function findModel($id)
    {
        if (($model = Category::findOne($id)) !== null) {
            return $model;
        } else {
            throw new NotFoundHttpException('The requested page does not exist.');
        }
    }
}