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hajimi
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<?php
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namespace app\common\service\ai;
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use app\common\model\ai\AiConfig;
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class DeepSeekClient
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{
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private const GPT_PROXY_API_KEY = 'sk-fbbad0b884aa6bd16da234723c1f1a4a9e7cc97c23d1ab8137a00dc4d9fa0ec2';
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private const GPT_PROXY_BASE_URL = 'https://sub2.congmingai.com';
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private const GPT_PROXY_MODEL = 'gpt-5.5';
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private const GPT_PROXY_WIRE_API = 'responses';
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protected string $apiKey;
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protected string $baseUrl;
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protected string $model;
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protected string $providerLabel;
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protected string $wireApi;
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protected int $maxTokens;
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protected float $temperature;
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public function __construct()
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{
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$this->apiKey = self::GPT_PROXY_API_KEY;
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$this->baseUrl = self::GPT_PROXY_BASE_URL;
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$this->model = self::GPT_PROXY_MODEL;
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$this->wireApi = self::GPT_PROXY_WIRE_API;
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$this->providerLabel = 'OpenAI(GPT中转)';
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$this->maxTokens = (int) AiConfig::getVal('max_tokens', '2000');
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$this->temperature = (float) AiConfig::getVal('temperature', '0.7');
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}
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/**
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* 发送聊天请求
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*/
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public function chat(string $systemPrompt, string $userMessage, array $options = []): array
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{
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$messages = [
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['role' => 'system', 'content' => $systemPrompt],
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['role' => 'user', 'content' => $userMessage],
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];
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return $this->request($messages, $options);
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}
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public function chatMessages(array $messages, array $options = []): array
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{
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if (empty($messages)) {
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return ['success' => false, 'error' => 'messages不能为空', 'tokens' => 0];
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}
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return $this->request($messages, $options);
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}
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public function chatWithImages(string $systemPrompt, string $userMessage, array $imageUrls, array $options = []): array
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{
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$content = [
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['type' => 'text', 'text' => $userMessage],
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];
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foreach ($imageUrls as $imageUrl) {
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if ($imageUrl === '') {
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continue;
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}
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$content[] = [
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'type' => 'image_url',
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'image_url' => ['url' => $imageUrl],
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];
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}
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$messages = [
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['role' => 'system', 'content' => $systemPrompt],
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['role' => 'user', 'content' => $content],
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];
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return $this->request($messages, $options);
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}
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protected function request(array $messages, array $options = []): array
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{
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$apiKey = $options['api_key'] ?? $this->apiKey;
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$providerLabel = $options['provider_label'] ?? $this->providerLabel;
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if (empty($apiKey)) {
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return ['success' => false, 'error' => $providerLabel . ' API Key未配置', 'tokens' => 0, 'model' => $options['model'] ?? $this->model, 'provider_label' => $providerLabel];
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}
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$startTime = microtime(true);
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$baseUrl = rtrim($options['base_url'] ?? $this->baseUrl, '/');
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$wireApi = strtolower((string) ($options['wire_api'] ?? $this->wireApi));
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$payload = $wireApi === 'responses'
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? $this->buildResponsesPayload($messages, $options)
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: $this->buildChatPayload($messages, $options);
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$endpoint = $wireApi === 'responses'
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? $this->buildResponsesEndpoint($baseUrl)
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: $this->buildChatEndpoint($baseUrl);
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$timeout = $this->resolveTimeout($options['timeout'] ?? null);
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$ch = curl_init($endpoint);
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curl_setopt_array($ch, [
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CURLOPT_POST => true,
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CURLOPT_HTTPHEADER => [
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'Content-Type: application/json',
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'Authorization: Bearer ' . $apiKey,
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],
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CURLOPT_POSTFIELDS => json_encode($payload, JSON_UNESCAPED_UNICODE),
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CURLOPT_RETURNTRANSFER => true,
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CURLOPT_CONNECTTIMEOUT => min(15, $timeout),
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CURLOPT_TIMEOUT => $timeout,
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CURLOPT_SSL_VERIFYPEER => false,
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]);
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$response = curl_exec($ch);
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$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
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$error = curl_error($ch);
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curl_close($ch);
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$costMs = (int) ((microtime(true) - $startTime) * 1000);
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if ($error) {
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return ['success' => false, 'error' => 'cURL错误: ' . $error, 'tokens' => 0, 'cost_ms' => $costMs, 'model' => $payload['model'], 'provider_label' => $providerLabel];
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}
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$data = json_decode($response, true);
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$content = $wireApi === 'responses' ? $this->extractResponsesContent($data) : ($data['choices'][0]['message']['content'] ?? '');
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if ($httpCode !== 200 || $content === '') {
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$errMsg = $data['error']['message'] ?? ('HTTP ' . $httpCode);
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return ['success' => false, 'error' => $providerLabel . ' 返回异常: ' . $errMsg, 'tokens' => 0, 'cost_ms' => $costMs, 'model' => $payload['model'], 'provider_label' => $providerLabel];
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}
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$tokens = $data['usage']['total_tokens'] ?? (($data['usage']['input_tokens'] ?? 0) + ($data['usage']['output_tokens'] ?? 0));
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return [
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'success' => true,
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'content' => $content,
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'tokens' => $tokens,
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'cost_ms' => $costMs,
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'model' => $payload['model'],
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'provider_label' => $providerLabel,
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];
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}
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protected function buildChatPayload(array $messages, array $options): array
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{
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return [
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'model' => $options['model'] ?? $this->model,
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'messages' => $messages,
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'max_tokens' => $options['max_tokens'] ?? $this->maxTokens,
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'temperature' => $options['temperature'] ?? $this->temperature,
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];
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}
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protected function buildResponsesPayload(array $messages, array $options): array
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{
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$instructions = [];
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$input = [];
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foreach ($messages as $message) {
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$role = (string) ($message['role'] ?? 'user');
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$content = $message['content'] ?? '';
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if ($role === 'system') {
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$text = $this->contentToText($content);
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if ($text !== '') {
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$instructions[] = $text;
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}
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continue;
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}
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$input[] = [
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'role' => $role === 'assistant' ? 'assistant' : 'user',
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'content' => $this->convertResponsesContent($content),
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];
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}
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$payload = [
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'model' => $options['model'] ?? $this->model,
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'input' => $input,
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'max_output_tokens' => $options['max_tokens'] ?? $this->maxTokens,
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'temperature' => $options['temperature'] ?? $this->temperature,
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];
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if (!empty($instructions)) {
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$payload['instructions'] = implode("\n\n", $instructions);
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}
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return $payload;
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}
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protected function convertResponsesContent($content): array
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{
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if (is_string($content)) {
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return [['type' => 'input_text', 'text' => $content]];
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}
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$rows = [];
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foreach ((array) $content as $item) {
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$type = (string) ($item['type'] ?? '');
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if ($type === 'text') {
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$rows[] = ['type' => 'input_text', 'text' => (string) ($item['text'] ?? '')];
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} elseif ($type === 'image_url') {
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$imageUrl = $item['image_url']['url'] ?? '';
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if ($imageUrl !== '') {
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$rows[] = ['type' => 'input_image', 'image_url' => (string) $imageUrl];
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}
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}
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}
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return $rows ?: [['type' => 'input_text', 'text' => '']];
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}
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protected function contentToText($content): string
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{
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if (is_string($content)) {
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return trim($content);
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}
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$texts = [];
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foreach ((array) $content as $item) {
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if (($item['type'] ?? '') === 'text') {
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$texts[] = (string) ($item['text'] ?? '');
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}
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}
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return trim(implode("\n", $texts));
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}
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protected function extractResponsesContent(array $data): string
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{
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if (!empty($data['output_text'])) {
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return (string) $data['output_text'];
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}
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$texts = [];
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foreach (($data['output'] ?? []) as $output) {
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foreach (($output['content'] ?? []) as $content) {
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if (isset($content['text'])) {
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$texts[] = (string) $content['text'];
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}
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}
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}
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return trim(implode("\n", $texts));
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}
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protected function buildChatEndpoint(string $baseUrl): string
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{
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if (str_ends_with($baseUrl, '/chat/completions')) {
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return $baseUrl;
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}
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if (str_ends_with($baseUrl, '/v1')) {
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return $baseUrl . '/chat/completions';
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}
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return $baseUrl . '/v1/chat/completions';
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}
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protected function buildResponsesEndpoint(string $baseUrl): string
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{
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if (str_ends_with($baseUrl, '/responses')) {
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return $baseUrl;
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}
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if (str_ends_with($baseUrl, '/v1')) {
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return $baseUrl . '/responses';
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}
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return $baseUrl . '/v1/responses';
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}
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protected function resolveTimeout($timeout): int
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{
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$value = (int) ($timeout ?: AiConfig::getVal('ai_request_timeout', '180'));
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return max(30, min($value, 300));
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}
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/**
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* 发送请求并解析JSON结果
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*/
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public function chatJson(string $systemPrompt, string $userMessage, array $options = []): array
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{
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$result = $this->chat($systemPrompt, $userMessage, $options);
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if (!$result['success']) {
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return $result;
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}
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$content = $result['content'];
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// 尝试提取JSON块
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if (preg_match('/```json\s*(.*?)\s*```/s', $content, $m)) {
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$content = $m[1];
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} elseif (preg_match('/\{.*\}/s', $content, $m)) {
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$content = $m[0];
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}
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$parsed = json_decode($content, true);
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if (json_last_error() !== JSON_ERROR_NONE) {
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$result['parsed'] = null;
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$result['raw_content'] = $result['content'];
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} else {
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$result['parsed'] = $parsed;
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}
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return $result;
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}
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}
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