<?php

namespace app\common\service;

use app\common\validate\UsedCarValidate;
use app\common\traits\crud\CrudServiceTrait;
use app\common\model\UsedCar;
use GuzzleHttp\Client;
use support\exception\BusinessException;
use support\Log;
use support\Request;

class UsedCarService
{

    use CrudServiceTrait;

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

    /**
     * 验证器
     */
    protected $validator = UsedCarValidate::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':
                $config['where']['status'] = 1;

                if (isset($p['scene']) && $p['scene'] == 'self') {
                    $config['where']['user_id'] = $request->user['id'];
                }

                // 关键字
                if (isset($p['keyword']) && $p['keyword']) {
                    $k = '%' . $p['keyword'] . '%';
                    foreach (['product_name'] as $col) {
                        $config['orWhere'][] = [$col, 'like', $k];
                    }
                }
                $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;
    }


    public function beforeServiceStore($data, Request $request): array
    {
        if(empty($data['product_name'])){
            throw new BusinessException('产品名称不能为空');
        }
        if(empty($data['images'])){
            throw new BusinessException('产品图片不能为空');
        }
        if(empty($data['price'])){
            $data['price'] = 0;
        }
        if(!empty($data['attachment'])){
            $data['attachment'] = json_encode($data['attachment']);
        }
        $data['user_id'] = $request->user['id'];
        return $data;
    }


    /**
     * 抓取车型数据（通过接口）
     * @param Request $request
     * @return array
     * @throws \Exception
     */
    public function crawlKeyword(Request $request): array
    {
        $keyword = $request->get('keyword');

        // 执行抓取
        $crawlService = new CrawlService();

        //懂车帝模糊搜索返回车系地址|单个车系id抓取
        $href = $crawlService->modelSearch($keyword);
        $seriesId = $this->extractSeriesId($href); //懂车帝车系id

//        if (empty($seriesId)) { //没有抓取到懂车帝系列id时，按关键词为品牌名抓取所有的系列名
//            $crawlSeries = $crawlService->brandSeries($keyword);
//        }
        //按关键词为品牌名抓取所有的系列名
        $crawlSeries = $crawlService->brandSeries($keyword);

        if (empty($seriesId) && empty($crawlSeries)) {
            throw new \Exception('抓取失败，未找到该系列车型');
        }

//        $brandSerieses = [];
//        if(empty($seriesId) && !empty($crawlSeries) || count($crawlSeries)>1){ //关键词为品牌名时抓取所有车系的懂车帝id
//            $href = $crawlService->modelSearch($crawlSeries[0]);
//            $seriesId = $this->extractSeriesId($href); //懂车帝车系id
//            //抓取品牌与系列
//            $brandSeries = $crawlService->crawlBrandSeries($seriesId);
//            foreach ($crawlSeries as $item) {
////                $brandSerieses[] = $crawlService->brandSeries($keyword);
//                $brandSerieses[] = ['brand' => $brandSeries['brand'], 'series' => $item];
//            }
//        }elseif (!empty($seriesId) && empty($crawlSeries)){
//            //抓取品牌与系列
//            $brandSerieses[] = $crawlService->crawlBrandSeries($seriesId);
//        }
        //抓取品牌与系列
        $brandSerieses[] = $crawlService->crawlBrandSeries($seriesId);

        $result = [];
        try {
            foreach ($brandSerieses as $brandSeries) {
                $item = [];
                $item['brand'] = ['brand_name' => $brandSeries['brand']];
                $item['series'] = ['series_name' => $brandSeries['series']];

                //获取车型数据
                $item['model'] = [];
                if (count($brandSerieses)<2) {
                    $item['model'] = $this->crawlSeriesModel($seriesId);
                }
                $result[] = $item;
            }

            return $result[0];
        } catch (\Exception $e) {
            throw new \Exception($e->getMessage());
        }
    }

    /**
     * 获取车系下车型数据
     * @return array
     * @throws \GuzzleHttp\Exception\GuzzleException
     */
    public function crawlSeriesModel($seriesId)
    {
        $client = new Client([
            'verify' => false, // 禁用 SSL 验证
            'timeout' => 10
        ]);
        try {
            $response = $client->get('https://www.dongchedi.com/motor/pc/car/series/car_list', [
                'query' => ['series_id' => $seriesId],
                'headers' => [
                    'User-Agent' => 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36'
                ]
            ]);
            $data = json_decode($response->getBody()->getContents(), true);
            if($data['status'] != 0 || (!isset($data['data']) && !isset($data['data']['tab_list']))){
                Log::error('抓取车型数据失败' . $data['message'], $data);
                throw new \Exception('抓取车型数据失败' . $data['message']);
            }
            $models = [];
            foreach ($data['data']['tab_list'] as $item) {
                if($item['tab_text'] == '在售' || $item['tab_text'] == '停售'){
                    unset($item['data'][0]);
                    $models = array_merge($models, $item['data']);
                }
            }
            foreach ($models as $key => $model) {
                if(!isset($model["info"]['car_name']) || $model['type'] != "1115"){
                    unset($models[$key]);
                    continue;
                }
                $official_price = 0;
                if(!isset($model["info"]['official_price'])){
                    $official_price = (int)(str_replace("万", "", $model["info"]['official_price_str']) * 10000) ?? 0;
                }else{
                    $official_price = $model["info"]['official_price'] * 10000;
                }
                $models[$key] = [
                    'title' => $model["info"]['year'] . '款 ' .$model["info"]['car_name'],
                    'brand_id' => $model["info"]['brand_id'],
                    'brand_name' => $model["info"]['brand_name'],
                    'series_id' => $model["info"]['series_id'],
                    'series_name' => $model["info"]['series_name'],
                    'year' => $model["info"]['year'],
                    'msrp' => $official_price,
                    'car_id' => $model["info"]['id'],
                ];
            }

            return array_values($models);

        } catch (\Exception $e) {
            throw new \Exception($e->getMessage());
        }
    }

    /**
     * 从懂车帝URL中提取series ID
     * @param string $url 完整的URL
     * @return string|null series ID或null
     */
    function extractSeriesId($url) {
        // 解析URL获取路径部分
        $path = parse_url($url, PHP_URL_PATH);

        if (!$path) {
            return null;
        }

        // 按斜杠分割路径
        $pathParts = explode('/', trim($path, '/'));

        // 查找 'series' 的位置，下一个元素就是series ID
        $seriesIndex = array_search('series', $pathParts);

        if ($seriesIndex !== false && isset($pathParts[$seriesIndex + 1])) {
            return $pathParts[$seriesIndex + 1];
        }

        return null;
    }

    function downloadImage(string $url): string
    {
        $dir = runtime_path('pdf/images/');
        if (!is_dir($dir)) {
            mkdir($dir, 0755, true);
        }

        $filename = md5($url) . '.jpg';
        $path = $dir . $filename;

        if (!file_exists($path)) {
            $img = file_get_contents($url);
            file_put_contents($path, $img);
        }

        return $path;
    }

    function downloadAttachment(string $url): string
    {
        $dir = runtime_path('pdf/attachment/');
        if (!is_dir($dir)) {
            mkdir($dir, 0755, true);
        }

        $filename = md5($url) . '.pdf';
        $path = $dir . $filename;

        if (!file_exists($path)) {
            $img = file_get_contents($url);
            file_put_contents($path, $img);
        }

        return $path;
    }
}