<?php
    
    namespace common\models;
    
    use common\behaviors\SaveImgBehavior;
    use Yii;
    use yii\db\ActiveQuery;
    use yii\db\ActiveRecord;
    use common\models\BlogCategory;
    
    /**
     * This is the model class for table "blog".
     * @property integer $id
     * @property integer $date
     * @property string  $title
     * @property string  $body
     * @property string  $image
     * @property string  $translit
     * @property string  $meta_title
     * @property string  $meta_keywords
     * @property string  $meta_description
     * @property string  $seo_text
     * @property string  $h1
     * @property string  $body_preview
     * @property integer $date_end
     * @property array   $categories
     * @property array $categoryItems
     */
    class Blog extends ActiveRecord
    {
        private $_categoryItems;
        
        public $imageUpload;
        
        /**
         * @inheritdoc
         */
        public static function tableName()
        {
            return 'blog';
        }
        
        /**
         * @inheritdoc
         */
        public function behaviors()
        {
            return [
                'slug' => [
                    'class'         => 'common\behaviors\Slug',
                    'in_attribute'  => 'title',
                    'out_attribute' => 'translit',
                    'translit'      => true,
                ],
                [
                    'class' => SaveImgBehavior::className(),
                ],
            ];
        }
        
        /**
         * @inheritdoc
         */
        public function rules()
        {
            return [
                [
                    [ 'date' ],
                    'default',
                    'value' => function() {
                        return time();
                    },
                ],
                [
                    [
                        'date',
                        'date_end',
                    ],
                    'safe',
                ],
                [
                    [
                        'title',
                        'body',
                    ],
                    'required',
                ],
                [
                    [
                        'body',
                        'body_preview',
                        'seo_text',
                    ],
                    'string',
                ],
                [
                    [
                        'title',
                        'image',
                        'translit',
                        'meta_title',
                        'meta_keywords',
                        'meta_description',
                        'h1',
                    ],
                    'string',
                    'max' => 255,
                ],
                [
                    [ 'imageUpload' ],
                    'safe',
                ],
                [
                    [ 'imageUpload' ],
                    'file',
                    'extensions' => 'jpg, gif, png',
                ],
                [
                    [
                        'date',
                        'date_end',
                    ],
                    'filter',
                    'filter' => function($value) {
                        return strtotime($value) ? : time();
                    },
                ],
                [
                    [
                        'categoryItems',
                    ],
                    'safe',
                ],
            ];
        }
        
        /**
         * @inheritdoc
         */
        public function attributeLabels()
        {
            return [
                'id'               => 'ID',
                'date'             => 'Дата публикации',
                'date_end'         => 'Date end',
                'title'            => 'Название',
                'body'             => 'Текст',
                'body_preview'     => 'Текс (предпросмотр)',
                'image'            => 'Image',
                'imageUrl'         => Yii::t('app', 'Image'),
                'translit'         => 'Translit',
                'meta_title'       => 'Meta Title',
                'meta_keywords'    => 'Meta Keywords',
                'meta_description' => 'Meta Description',
                'seo_text'         => 'Seo Text',
                'h1'               => 'H1',
                'imageUpload'      => 'Картинка',
                'categoryItems'    => 'Категории',
            ];
        }
        
        public function getImageFile()
        {
            return empty( $this->image ) ? NULL : Yii::getAlias('@imagesDir/blog/' . $this->image);
        }
        
        public function getImageUrl()
        {
            return empty( $this->image ) ? NULL : Yii::getAlias('@imagesUrl/blog/' . $this->image);
        }
    
        /**
         * @return ActiveQuery
         */
        public function getCategories()
        {
            return $this->hasMany(BlogCategory::className(), [ 'id' => 'category_id' ])
                        ->viaTable('blog_to_category', [ 'blog_id' => 'id' ]);
        }
        
        public function getCategoryItemsAsArray()
        {
            return BlogCategory::find()
                ->select('name')
                ->indexBy('id')
                ->asArray()
                ->column();
        }
    
        public function getCategoryItems()
        {
            return $this->_categoryItems;
        }
        
        public function setCategoryItems($items)
        {
            $this->_categoryItems = $items;
        }
    }