<?php

namespace bizHd\goods\classes;

use bizHd\base\classes\BaseClass;
use common\components\util;

/**
 * 商品分类配置业务：商城花材分类名称、置顶、展示
 */
class CategorySettingClass extends BaseClass
{
    public static $baseFile = '\bizHd\goods\models\CategorySetting';

    /**
     * 校验操作权限
     * @param array|null $info
     * @param int $mainId
     */
    public static function valid($info, $mainId)
    {
        if (empty($info) || intval($info['mainId']) !== intval($mainId)) {
            util::fail('没有权限操作');
        }
    }

    /**
     * 读取当前门店配置，不存在则返回默认结构
     * @param int $mainId
     * @param int $shopId
     * @return array
     */
    public static function getOrInit($mainId, $shopId)
    {
        $info = self::getByCondition([
            'mainId' => intval($mainId),
            'shopId' => intval($shopId),
        ]);
        if (empty($info)) {
            return [
                'id' => 0,
                'mainId' => intval($mainId),
                'shopId' => intval($shopId),
                'itemCateName' => '',
                'isItemCateTop' => 0,
                'isItemCateShow' => 0,
                'advertisement' => '',
            ];
        }
        return self::formatInfo($info);
    }

    /**
     * 保存商城分类设置（按 mainId + shopId 唯一 upsert）
     * @param int $mainId
     * @param int $shopId
     * @param array $data
     * @return array
     */
    public static function saveSetting($mainId, $shopId, $data)
    {
        $itemCateName = trim($data['itemCateName'] ?? '');
        if ($itemCateName === '') {
            util::fail('请输入商城分类名称');
        }
        if (mb_strlen($itemCateName, 'UTF-8') > 20) {
            util::fail('商城分类名称最多20个字');
        }

        $saveData = [
            'itemCateName' => $itemCateName,
            'isItemCateTop' => intval($data['isItemCateTop'] ?? 0) ? 1 : 0,
            'isItemCateShow' => intval($data['isItemCateShow'] ?? 0) ? 1 : 0,
        ];

        $exists = self::getByCondition([
            'mainId' => intval($mainId),
            'shopId' => intval($shopId),
        ]);

        if (empty($exists)) {
            $saveData['mainId'] = intval($mainId);
            $saveData['shopId'] = intval($shopId);
            $saveData['advertisement'] = $data['advertisement'] ?? '';
            $row = self::add($saveData);
            return self::formatInfo($row);
        }

        // 未传 advertisement 时保留原值
        if (array_key_exists('advertisement', $data)) {
            $saveData['advertisement'] = is_string($data['advertisement'])
                ? $data['advertisement']
                : json_encode($data['advertisement'], JSON_UNESCAPED_UNICODE);
        }

        self::updateById($exists['id'], $saveData);
        $info = self::getById($exists['id']);
        return self::formatInfo($info);
    }

    /**
     * 仅保存分类广告 JSON（advertisement 字段）
     * @param int $mainId
     * @param int $shopId
     * @param string|array $advertisement
     * @return array
     */
    public static function saveAdvertisement($mainId, $shopId, $advertisement)
    {
        if (is_array($advertisement)) {
            $advertisement = json_encode($advertisement, JSON_UNESCAPED_UNICODE);
        }
        $advertisement = trim((string)$advertisement);
        if ($advertisement !== '') {
            $decoded = json_decode($advertisement, true);
            if (!is_array($decoded)) {
                util::fail('广告数据格式错误');
            }
            if (count($decoded) > 3) {
                util::fail('最多支持3张轮播图');
            }
        }

        $exists = self::getByCondition([
            'mainId' => intval($mainId),
            'shopId' => intval($shopId),
        ]);

        if (empty($exists)) {
            $row = self::add([
                'mainId' => intval($mainId),
                'shopId' => intval($shopId),
                'itemCateName' => '',
                'isItemCateTop' => 0,
                'isItemCateShow' => 0,
                'advertisement' => $advertisement,
            ]);
            return self::formatInfo($row);
        }

        self::updateById($exists['id'], ['advertisement' => $advertisement]);
        $info = self::getById($exists['id']);
        return self::formatInfo($info);
    }

    /**
     * 输出字段规范化
     * @param array $info
     * @return array
     */
    protected static function formatInfo($info)
    {
        return [
            'id' => intval($info['id'] ?? 0),
            'mainId' => intval($info['mainId'] ?? 0),
            'shopId' => intval($info['shopId'] ?? 0),
            'itemCateName' => $info['itemCateName'] ?? '',
            'isItemCateTop' => intval($info['isItemCateTop'] ?? 0),
            'isItemCateShow' => intval($info['isItemCateShow'] ?? 0),
            'advertisement' => $info['advertisement'] ?? '',
        ];
    }
}