<?php

namespace App\Backend;

use App\Models\CategoryModel;
use App\Models\ProductModel;

class ProductBackend extends BaseBackend
{
    private $_categoryModel = null;
    private $_category_uids = null;
    public function __construct()
    {
        parent::__construct('Product');
        $this->_model = new ProductModel();
    }

    //Category모델
    final protected function getCategoryModel(): CategoryModel
    {
        return is_null($this->_categoryModel) ? new CategoryModel() : $this->_categoryModel;
    }

    //Field별 Form Option용
    public function getFieldFormOption(string $field): array
    {
        switch ($field) {
            case 'category_uid':
                $options = $this->_category_uids = $this->_category_uids ?: $this->getCategoryModel()->getFieldFormOptions(['status' => 'use']);
                break;
            default:
                return parent::getFieldFormOption($field);
                break;
        }
        if (!is_array($options)) {
            throw new \Exception(__FUNCTION__ . "에서 {$this->getClassName()}의 Field:{$field}의 FormOptionData가 array가 아닙니다.\n" . var_export($options, true));
        }
        return $options;
    }
}