<?php

namespace hd\models\homePageConfig;

use bizHd\homePageConfig\classes\HomePageConfigClass;
use hd\models\BaseForm;

/**
 * 保存首页模块顺序与开关
 */
class SaveModulesForm extends BaseForm
{
    /** @var array */
    public $items;

    public function rules()
    {
        return [
            ['items', 'required', 'message' => '请提交配置项'],
            ['items', 'validateItems'],
        ];
    }

    public function attributeLabels()
    {
        return [
            'items' => '配置项',
        ];
    }

    public function validateItems($attribute)
    {
        $items = $this->$attribute;
        if (is_string($items)) {
            $items = json_decode($items, true);
        }
        if (!is_array($items)) {
            $this->addError($attribute, '配置项格式错误');
            return;
        }
        $defaultKeys = HomePageConfigClass::DEFAULT_KEYS;
        if (count($items) !== count($defaultKeys)) {
            $this->addError($attribute, '配置项数量不正确');
            return;
        }

        $result = [];
        $used = [];
        foreach ($items as $item) {
            if (!is_array($item)) {
                $this->addError($attribute, '配置项格式错误');
                return;
            }
            $key = isset($item['key']) ? strval($item['key']) : '';
            if ($key === '' || !in_array($key, $defaultKeys, true)) {
                $this->addError($attribute, '存在无效配置项');
                return;
            }
            if (isset($used[$key])) {
                $this->addError($attribute, '配置项重复');
                return;
            }
            $result[] = [
                'key' => $key,
                'enabled' => !empty($item['enabled']) ? 1 : 0,
            ];
            $used[$key] = true;
        }
        if (count($used) !== count($defaultKeys)) {
            $this->addError($attribute, '配置项不完整');
            return;
        }
        $this->$attribute = $result;
    }

    /**
     * @return array
     */
    public function getItems()
    {
        return is_array($this->items) ? $this->items : [];
    }
}