<?php

namespace app\api\controller;

use app\common\controller\Api;
use app\common\exception\UploadException;
use app\common\library\Upload;
use app\common\model\Area;
use app\common\model\Version;
use fast\Random;
use OSS\OssClient;
use think\captcha\Captcha;
use think\Config;
use think\Hook;
use think\Log;

/**
 * 公共接口
 */
class Common extends Api
{
    protected $noNeedLogin = ['init', 'captcha'];
    protected $noNeedRight = '*';

    /**
     * 获取 OSS 配置
     */
    public static function getOssConfig(): array
    {
        $config = Config::get('oss');
        return is_array($config) ? $config : [];
    }

    /**
     * OSS 配置是否可用
     */
    public static function isOssEnabled(): bool
    {
        $config = self::getOssConfig();
        return !empty($config['accessKeyId'])
            && !empty($config['accessKeySecret'])
            && !empty($config['endpoint'])
            && !empty($config['bucket']);
    }

    /**
     * 归一化 OSS 对象键
     */
    public static function normalizeOssObjectKey(string $objectKey): string
    {
        return ltrim(str_replace('\\', '/', trim($objectKey)), '/');
    }

    /**
     * 上传本地文件到 OSS
     *
     * @param string $localFullPath 本地文件完整路径
     *   示例：D:/phpstudy_pro/WWW/mes-ai-server-api/public/uploads/material/2026-03-25/a.png
     * @param string $objectKey OSS 对象键（Bucket 内的相对路径，不要带域名）
     *   示例：uploads/material/2026-03-25/a.png
     * @return bool true=上传成功；false=未配置/本地文件不存在/上传失败
     */
    public static function uploadLocalFileToOss(string $localFullPath, string $objectKey): bool
    {
        if (!self::isOssEnabled() || !is_file($localFullPath)) {
            return false;
        }
        $config = self::getOssConfig();
        $objectKey = self::normalizeOssObjectKey($objectKey);
        if ($objectKey === '') {
            return false;
        }
        try {
            $ossClient = new OssClient(
                $config['accessKeyId'],
                $config['accessKeySecret'],
                $config['endpoint']
            );
            $ossClient->uploadFile($config['bucket'], $objectKey, $localFullPath);
            return true;
        } catch (\Throwable $e) {
            Log::write('[OSS uploadLocalFileToOss] ' . $e->getMessage() . ' | objectKey=' . $objectKey . ' | local=' . $localFullPath, 'error');
            return false;
        }
    }

    /**
     * 删除 OSS 对象
     */
    public static function deleteOssObject(string $objectKeyOrUrl): bool
    {
        if (!self::isOssEnabled()) {
            return false;
        }
        $config = self::getOssConfig();
        $objectKey = self::normalizeOssObjectKey($objectKeyOrUrl);
        if ($objectKey === '') {
            return false;
        }
        try {
            $ossClient = new OssClient(
                $config['accessKeyId'],
                $config['accessKeySecret'],
                $config['endpoint']
            );
            $ossClient->deleteObject($config['bucket'], $objectKey);
            return true;
        } catch (\Throwable $e) {
            return false;
        }
    }

    /**
     * 把相对路径拼接为完整 OSS URL；已是 http(s) 则原样返回
     * 路径$taskInfo['image_url'] = '/uploads/Product/img2img-20260317152818-69b902924548d.png'
     * Common::ossFullUrl((string)$taskInfo['image_url']);
     */
    public static function ossFullUrl(string $path): string
    {
        $path = trim($path);
        if ($path === '' || stripos($path, 'http://') === 0 || stripos($path, 'https://') === 0) {
            return $path;
        }
        $config = self::getOssConfig();
        $host = trim((string)($config['host'] ?? ''));
        if ($host === '') {
            return $path;
        }
        if (stripos($host, 'http://') !== 0 && stripos($host, 'https://') !== 0) {
            $host = 'https://' . $host;
        }
        return rtrim($host, '/') . '/' . ltrim($path, '/');
    }

    /**
     * product_template.chinese_description 入库：多页为 JSON 数组字符串，避免数组被写成 "Array"。
     *
     * @param mixed $raw 前端数组、合法 JSON 数组字符串、或历史单段纯文本
     */
    public static function encodeChineseDescriptionForDb($raw): string
    {
        if (is_array($raw)) {
            return json_encode($raw, JSON_UNESCAPED_UNICODE) ?: '[]';
        }
        if ($raw === null || $raw === '') {
            return '';
        }
        if (!is_string($raw)) {
            return '';
        }
        $trimmed = trim($raw);
        if ($trimmed === '') {
            return '';
        }
        $decoded = json_decode($trimmed, true);
        if (json_last_error() === JSON_ERROR_NONE && is_array($decoded)) {
            return json_encode($decoded, JSON_UNESCAPED_UNICODE) ?: $trimmed;
        }

        return $raw;
    }

    /**
     * 读出给前端：合法 JSON 数组则转 array，否则保持原字符串。
     *
     * @return array|string
     */
    public static function decodeChineseDescriptionForApi($stored)
    {
        if ($stored === null || $stored === '') {
            return [];
        }
        if (!is_string($stored)) {
            return $stored;
        }
        $decoded = json_decode($stored, true);
        if (json_last_error() === JSON_ERROR_NONE && is_array($decoded)) {
            return $decoded;
        }

        return $stored;
    }

    public function _initialize()
    {

        if (isset($_SERVER['HTTP_ORIGIN'])) {
            header('Access-Control-Expose-Headers: __token__');//跨域让客户端获取到
        }
        //跨域检测
        check_cors_request();

        if (!isset($_COOKIE['PHPSESSID'])) {
            Config::set('session.id', $this->request->server("HTTP_SID"));
        }
        parent::_initialize();
    }

    /**
     * 加载初始化
     *
     * @ApiParams (name="version", type="string", required=true, description="版本号")
     * @ApiParams (name="lng", type="string", required=true, description="经度")
     * @ApiParams (name="lat", type="string", required=true, description="纬度")
     */
    public function init()
    {
        if ($version = $this->request->request('version')) {
            $lng = $this->request->request('lng');
            $lat = $this->request->request('lat');

            //配置信息
            $upload = Config::get('upload');
            //如果非服务端中转模式需要修改为中转
            if ($upload['storage'] != 'local' && isset($upload['uploadmode']) && $upload['uploadmode'] != 'server') {
                //临时修改上传模式为服务端中转
                set_addon_config($upload['storage'], ["uploadmode" => "server"], false);

                $upload = \app\common\model\Config::upload();
                // 上传信息配置后
                Hook::listen("upload_config_init", $upload);

                $upload = Config::set('upload', array_merge(Config::get('upload'), $upload));
            }

            $upload['cdnurl'] = $upload['cdnurl'] ? $upload['cdnurl'] : cdnurl('', true);
            $upload['uploadurl'] = preg_match("/^((?:[a-z]+:)?\/\/)(.*)/i", $upload['uploadurl']) ? $upload['uploadurl'] : url($upload['storage'] == 'local' ? '/api/common/upload' : $upload['uploadurl'], '', false, true);

            $content = [
                'citydata'    => Area::getCityFromLngLat($lng, $lat),
                'versiondata' => Version::check($version),
                'uploaddata'  => $upload,
                'coverdata'   => Config::get("cover"),
            ];
            $this->success('', $content);
        } else {
            $this->error(__('Invalid parameters'));
        }
    }

    /**
     * 上传文件
     * @ApiMethod (POST)
     * @ApiParams (name="file", type="file", required=true, description="文件流")
     */
    public function upload()
    {
        Config::set('default_return_type', 'json');
        //必须设定cdnurl为空,否则cdnurl函数计算错误
        Config::set('upload.cdnurl', '');
        $chunkid = $this->request->post("chunkid");
        if ($chunkid) {
            if (!Config::get('upload.chunking')) {
                $this->error(__('Chunk file disabled'));
            }
            $action = $this->request->post("action");
            $chunkindex = $this->request->post("chunkindex/d");
            $chunkcount = $this->request->post("chunkcount/d");
            $filename = $this->request->post("filename");
            $method = $this->request->method(true);
            if ($action == 'merge') {
                $attachment = null;
                //合并分片文件
                try {
                    $upload = new Upload();
                    $attachment = $upload->merge($chunkid, $chunkcount, $filename);
                } catch (UploadException $e) {
                    $this->error($e->getMessage());
                }
                $this->success(__('Uploaded successful'), ['url' => $attachment->url, 'fullurl' => cdnurl($attachment->url, true)]);
            } elseif ($method == 'clean') {
                //删除冗余的分片文件
                try {
                    $upload = new Upload();
                    $upload->clean($chunkid);
                } catch (UploadException $e) {
                    $this->error($e->getMessage());
                }
                $this->success();
            } else {
                //上传分片文件
                //默认普通上传文件
                $file = $this->request->file('file');
                try {
                    $upload = new Upload($file);
                    $upload->chunk($chunkid, $chunkindex, $chunkcount);
                } catch (UploadException $e) {
                    $this->error($e->getMessage());
                }
                $this->success();
            }
        } else {
            $attachment = null;
            //默认普通上传文件
            $file = $this->request->file('file');
            try {
                $upload = new Upload($file);
                $attachment = $upload->upload();
            } catch (UploadException $e) {
                $this->error($e->getMessage());
            } catch (\Exception $e) {
                $this->error($e->getMessage());
            }

            $this->success(__('Uploaded successful'), ['url' => $attachment->url, 'fullurl' => cdnurl($attachment->url, true)]);
        }

    }

    /**
     * 验证码
     * @ApiParams (name="id", type="string", required=true, description="要生成验证码的标识")
     * @return \think\Response
     */
    public function captcha($id = "")
    {
        \think\Config::set([
            'captcha' => array_merge(config('captcha'), [
                'fontSize' => 44,
                'imageH'   => 150,
                'imageW'   => 350,
            ])
        ]);
        $captcha = new Captcha((array)Config::get('captcha'));
        return $captcha->entry($id);
    }
}