<?php

namespace common\modules\rbac\controllers;

use common\modules\rbac\components\MenuHelper;
use common\modules\rbac\models\Menu;
use Yii;
use yii\data\ActiveDataProvider;
use yii\filters\VerbFilter;
use yii\helpers\Url;
use yii\web\Controller;
use yii\web\NotFoundHttpException;

/**
 * MenuController implements the CRUD actions for Menu model.
 *
 * @author Misbahul D Munir <misbahuldmunir@gmail.com>
 *
 * @since 1.0
 */
class MenuController extends Controller
{
    /**
     * {@inheritdoc}
     */
    public function behaviors()
    {
        return [
            'verbs' => [
                'class' => VerbFilter::className(),
                'actions' => [
                    'delete' => ['post'],
                ],
            ],
        ];
    }
    public function actions()
    {
        return [
            'ajax-update-field' => [
                'class' => 'common\\actions\\AjaxUpdateFieldAction',
                'allowFields' => ['order'],
                'findModel' => [$this, 'findModel']
            ],
            'position' => [
                'class' => 'backend\\actions\\Position',
                'returnUrl' => Url::current()
            ]
        ];
    }
    /**
     * Lists all Menu models.
     *
     * @return mixed
     */
    public function actionIndex()
    {
        $query = Menu::find()->orderBy('order asc');
        $dataProvider = new ActiveDataProvider([
            'query' => $query,
            'pagination' => false
        ]);

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

    /**
     * Creates a new Menu model.
     * If creation is successful, the browser will be redirected to the 'view' page.
     *
     * @return mixed
     */
    public function actionCreate($id = null)
    {
        $model = new Menu();
        $model->parent = $id ? : null;
        if ($model->load(Yii::$app->request->post()) && $model->save()) {
            Yii::$app->session->setFlash('success', '操作成功');
            return $this->redirect(['index']);
        } else {
            return $this->render('create', [
                'model' => $model,
            ]);
        }
    }

    /**
     * Updates an existing Menu model.
     * If update is successful, the browser will be redirected to the 'view' page.
     *
     * @param int $id
     *
     * @return mixed
     */
    public function actionUpdate($id)
    {
        $model = $this->findModel($id);
        if ($model->load(Yii::$app->request->post()) && $model->save()) {
            Yii::$app->session->setFlash('success', '操作成功');
            return $this->redirect(['index']);
        } else {
            return $this->render('update', [
                'model' => $model,
            ]);
        }
    }

    /**
     * Deletes an existing Menu model.
     * If deletion is successful, the browser will be redirected to the 'index' page.
     *
     * @param int $id
     *
     * @return mixed
     */
    public function actionDelete($id)
    {
        if (Menu::find()->where(['parent' => $id])->count() > 0) {
            Yii::$app->session->setFlash('error', '请先删除该菜单下的所有子菜单');
            return $this->redirect(['index']);
        }
        $this->findModel($id)->delete();
        Yii::$app->session->setFlash('success', '操作成功');
        return $this->redirect(['index']);
    }

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