<?php

namespace thread\actions;

use Yii;
use yii\base\Exception;
use yii\helpers\Url;
use yii\log\Logger;

/**
 * Class Create
 *
 * @package thread\actions
 * @author FilamentV <vortex.filament@gmail.com>
 * @copyright (c) 2016, VipDesign
 * @usage
 * public function actions()
 * {
 *      return [
 *          ...
 *          'create' => [
 *              'class' => Create::class,
 *              'modelClass' => Model::class,
 *          ],
 *          ...
 *      ];
 * }
 *
 */
class Create extends ActionCRUD
{
    /**
     * @var \Closure|null
     */
    public $afterSaveCallback = null;

    /**
     * @throws Exception
     */
    public function init()
    {
        if ($this->modelClass === null) {
            throw new Exception(__CLASS__ . '::$modelClass must be set.');
        }
        $this->model = new $this->modelClass;
        $this->model->loadDefaultValues();
        if ($this->model === null) {
            throw new Exception($this->modelClass . 'must be exists.');
        }
        if (!$this->model->isScenario($this->scenario)) {
            throw new Exception($this->modelClass . '::' . $this->scenario . " scenario doesn't exist");
        }
    }

    /**
     * Run action
     *
     * @return mixed
     */
    public function run()
    {
        if (Yii::$app->getRequest()->isAjax) {
            return $this->controller->renderPartial($this->view, [
                'model' => $this->model,
            ]);
        } else {
            if ($this->saveModel()) {
                return $this->controller->redirect($this->getRedirect());
            } else {
                $this->controller->layout = $this->layout;
                return $this->controller->render($this->view, [
                    'model' => $this->model,
                ]);
            }
        }
    }

    /**
     * Save data to model
     * Model Scenario 'backend' should be set
     *
     * @return bool
     */
    public function saveModel()
    {
        $save = false;
        $this->model->setScenario($this->scenario);
        if ($this->model->load(Yii::$app->getRequest()->post())) {
            $model = $this->model;
            $transaction = $model::getDb()->beginTransaction();
            try {
                $save = $this->model->save();

                ($save) ? $transaction->commit() : $transaction->rollBack();
                if ($save) {
                    //LOG
                    if ($this->useLog && $save) {
                        $this->model = $model;
                        $this->sendToLog();
                    }
                    $this->afterSaveModel();
                }
            } catch (Exception $e) {
                Yii::getLogger()->log($e->getMessage(), Logger::LEVEL_ERROR);
                $transaction->rollBack();
            }
        }
        return $save;
    }

    /**
     * @return string
     */
    public function getLogInfo()
    {
        $m = $this->logMessage;
        if ($m instanceof \Closure) {
            $mess = $m();
        } elseif (!empty($m['message'])) {
            $mess = $m;
        } else {
            //
            $module = (Yii::$app->controller->module->module->id == "app-backend") ?
                Yii::$app->controller->module->id : Yii::$app->controller->module->module->id . '/' . Yii::$app->controller->module->id;
            $controller = Yii::$app->controller->id;
            //
            $model = $this->getModel();
            $title = (isset($model['lang']['title'])) ? $model['lang']['title'] : ((isset($model['title'])) ? $model['title'] : $model->id);
            $mess['message'] = Yii::t('app', 'Create') . ":" . $title;
            $mess['url'] = Url::toRoute(['/' . $module . '/' . $controller . '/update', 'id' => $this->getModel()->id]);
        }
        return $mess;
    }

    /**
     * Run Callback function if model saved correctly
     */
    protected function afterSaveModel()
    {
        if ($this->afterSaveCallback instanceof \Closure) {
            $f = $this->afterSaveCallback;
            $f($this);
        }
    }
}