<?php

namespace app\common\service;

use app\common\model\SkuAttributeValue;
use app\common\validate\SkuValidate;
use app\common\traits\crud\CrudServiceTrait;
use app\common\model\Sku;
use support\exception\BusinessException;
use support\Redis;
use support\Request;

class SkuService
{

    use CrudServiceTrait;

    /**
     * 指定当前要操作的模型
     */
    protected string $modelClass = Sku::class;

    /**
     * 验证器
     */
    protected $validator = SkuValidate::class;

    /**
     * 获取验证器
     */
    public function getValidator()
    {
        return  new $this->validator;
    }

    /**
     * 构造 CrudUtil 查询配置
     */
    protected function buildQueryConfig(Request $request, string $scene = 'default'): array
    {
        $p = $request->all();

        $config = [];
        $config['model'] = $this->modelClass;
        switch ($scene) {
            case 'default':
                $config['where']['status'] = 1;
                $config['order']['sort'] = 'desc';
                $config['order']['id'] = 'desc';
                break;
            case 'index':
                if (isset($p['keyword']) && $p['keyword']) {
                    $k = '%' . $p['keyword'] . '%';
                    foreach (['product_name','model'] as $col) {
                        $config['orWhere'][] = [$col, 'like', $k];
                    }
                }
                $config['where']['status'] = 1;
                $config['order']['sort'] = 'desc';
                $config['order']['id'] = 'desc';
                break;
            case 'show':
                $config['where']['id'] = $p['id'];
                $config['where']['status'] = 1;
                break;
            case 'store':
                break;
            case 'update':
                $config['where']['id'] = $p['id'];
                break;
            case 'destroy':
                $config['where']['id'] = $p['id'];
                break;
        }

        return $config;
    }

    /**
     * 添加前置处理
     */
    public function beforeServiceStore($data, Request $request)
    {
        $protocol = $request->header('x-forwarded-proto',
            isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] === 'on' ? 'https' : 'http');
        $domain = $protocol . '://' . $request->host();

        if(!is_numeric($data['price'])){
            throw new BusinessException('价格不合法，需要是数字');
        }

        $spec = [];
        foreach ($data['spec'] as $key => $value) {
            $specItem = [];
            $specItem['category_id'] = $data['category_id'];
            $specItem['attr_id'] = $value['attr_id'];
            $specItem['attr_name'] = $value['attr_name'];
            $specItem['attr_value'] = $value['attr_value'];
            $spec[] = $specItem;
        }
        $spec_json = json_encode($spec,JSON_UNESCAPED_UNICODE);
        Redis::set('sku_attr_'.$request->user->uid, $spec_json,30);

        unset($data['spec']);
        $data['spec_json'] = $spec_json;
        $data['user_id'] = $request->user->uid;
        $data['code'] = $this->generateUniqueCode();
        $data['image'] = implode(',',$data['image']);

        // 将OSS直连地址替换为代理地址
//        $ossDomain = 'https://vehicle-album.oss-cn-beijing.aliyuncs.com/';
//        $proxyPath = '/proxy/ossurl?file=';
//
//        $data['desc'] = str_replace(
//            $ossDomain,
//            $proxyPath,
//            $data['desc']
//        );
        // 将OSS直连地址替换为代理地址
        $ossDomain = 'https://static.hnzhwlkj.cn/';
        $proxyPath = $domain.'/proxy/ossurl?file=';
        $data['desc'] = str_replace(
            $ossDomain,
            $proxyPath,
            $data['desc']
        );
        $data['desc'] = str_replace(
            '?Expires=',
            '&Expires=',
            $data['desc']
        );

        return $data;
    }


    /**
     * 添加后置处理
     */
    public function afterServiceStore($res)
    {
        $specs = Redis::get('sku_attr_'.$res['user_id']);
        $specs= json_decode($specs,true);
        $spec = [];
        foreach ($specs as $key => $value) {
            $spec['category_id'] = $res['category_id'];
            $spec['sku_id'] = $res['id'];
            $spec['attr_id'] = $value['attr_id'];
            $spec['attr_name'] = $value['attr_name'];
            $spec['attr_value'] = $value['attr_value'];
            SkuAttributeValue::create($spec);
        }
        return $res;
    }

    /**
     * 添加前置处理
     */
    public function beforeServiceUpdate($data, Request $request)
    {
        $protocol = $request->header('x-forwarded-proto',
            isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] === 'on' ? 'https' : 'http');
        $domain = $protocol . '://' . $request->host();

        $spec = [];
        SkuAttributeValue::where('sku_id', $data['id'])->delete();
        foreach ($data['spec'] as $key => $value) {
            $specItem = [];
            $specItem['category_id'] = $data['category_id'];
            $specItem['sku_id'] = $data['id'];
            $specItem['attr_id'] = $value['attr_id'];
            $specItem['attr_name'] = $value['attr_name'];
            $specItem['attr_value'] = $value['attr_value'];
            $spec[] = $specItem;
            SkuAttributeValue::create($specItem);
        }
        $spec_json = json_encode($spec,JSON_UNESCAPED_UNICODE);

        unset($data['spec']);
        $data['spec_json'] = $spec_json;
        $data['user_id'] = $request->user->uid;
        $data['image'] = implode(',',$data['image']);

        // 将OSS直连地址替换为代理地址
//        $ossDomain = 'https://vehicle-album.oss-cn-beijing.aliyuncs.com/';
//        $proxyPath = '/proxy/ossurl?file=';
//        $data['desc'] = str_replace(
//            $ossDomain,
//            $proxyPath,
//            $data['desc']
//        );
        // 将OSS直连地址替换为代理地址
        $ossDomain = 'https://static.hnzhwlkj.cn/';
        $proxyPath = $domain.'/proxy/ossurl?file=';
        $data['desc'] = str_replace(
            $ossDomain,
            $proxyPath,
            $data['desc']
        );

        $data['desc'] = str_replace(
            '?Expires=',
            '&Expires=',
            $data['desc']
        );

        return $data;
    }


    /**
     * 生成唯一的7位颜色编码
     * 格式：C + (O/I) + 5位字母数字组合
     *
     * @param int $type 类型：2=I，其他=O
     * @return string 7位唯一编码
     */
    public function generateUniqueCode()
    {
        $chars = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ';
        $maxAttempts = 10; // 防止无限循环

        for ($attempt = 0; $attempt < $maxAttempts; $attempt++) {
            // 生成后5位随机字符
            $suffix = '';
            for ($i = 0; $i < 5; $i++) {
                $suffix .= $chars[rand(0, strlen($chars) - 1)];
            }

            $colorCode = 'PN' . $suffix;

            // 检查是否已存在
            $existing = Sku::where('code', $colorCode)->first();
            if (!$existing) {
                return $colorCode;
            }
        }

        // 如果1000次尝试后仍然重复，使用时间戳确保唯一性
        $timestamp = substr(time(), -5);
        return 'PN' . $timestamp;
    }
}