<?php

namespace App\Service\common\upload;

use App\BaseApp\BaseNotAuthService;
use App\Service\common\oss\OssStorageInterface;
use App\Service\common\UtilsService;
use Illuminate\Support\Facades\Http;

/**
 * 阿里云 OSS：REST PutObject（Authorization 签名）
 */
class AliyunStorageService extends BaseNotAuthService implements OssStorageInterface
{
    protected array $config = [];

    public function withConfig(array $config): static
    {
        $this->config = $config;
        return $this;
    }

    public function uploadImage($filePath, string $key): bool|array
    {
        return $this->uploadFile($filePath, $key);
    }

    public function uploadVideo($filePath, string $key): bool|array
    {
        return $this->uploadFile($filePath, $key);
    }

    /**
     * 使用 OSS V1 签名上传对象
     */
    private function uploadFile($filePath, string $key): bool|array
    {
        $accessKey = (string) ($this->config['access_key'] ?? '');
        $secretKey = (string) ($this->config['secret_key'] ?? '');
        $bucket = (string) ($this->config['bucket'] ?? '');
        $endpoint = (string) ($this->config['endpoint'] ?? '');
        $domain = rtrim((string) ($this->config['domain'] ?? ''), '/');
        if ($accessKey === '' || $secretKey === '' || $bucket === '' || $endpoint === '') {
            UtilsService::getInstance()->errorThrow('阿里云 OSS 配置不完整（需要 AccessKey/Secret/Bucket/Endpoint）');
        }
        $prefix = trim((string) ($this->config['path_prefix'] ?? ''), '/');
        if ($prefix !== '' && !str_starts_with($key, $prefix . '/')) {
            $key = $prefix . '/' . ltrim($key, '/');
        }
        $path = is_object($filePath) && method_exists($filePath, 'getRealPath')
            ? $filePath->getRealPath()
            : (string) $filePath;
        $content = file_get_contents($path);
        $contentType = 'application/octet-stream';
        $date = gmdate('D, d M Y H:i:s \G\M\T');
        $resource = '/' . $bucket . '/' . $key;
        $stringToSign = "PUT\n\n{$contentType}\n{$date}\n{$resource}";
        $signature = base64_encode(hash_hmac('sha1', $stringToSign, $secretKey, true));
        $host = preg_replace('#^https?://#', '', rtrim($endpoint, '/'));
        // 支持传入 oss-cn-xxx.aliyuncs.com 或带 bucket 的域名
        if (!str_starts_with($host, $bucket . '.')) {
            $host = $bucket . '.' . $host;
        }
        $url = 'https://' . $host . '/' . $key;
        $response = Http::withHeaders([
            'Date' => $date,
            'Content-Type' => $contentType,
            'Authorization' => 'OSS ' . $accessKey . ':' . $signature,
        ])->withBody($content, $contentType)->put($url);
        if (!$response->successful()) {
            UtilsService::getInstance()->errorThrow('阿里云上传失败：' . $response->body());
        }
        $publicUrl = $domain !== '' ? ($domain . '/' . $key) : $url;
        return ['key' => $key, 'url' => $publicUrl];
    }
}