624 lines
23 KiB
PHP
624 lines
23 KiB
PHP
<?php
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namespace app\common\service;
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use app\model\AiProvider as AiProviderModel;
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use think\facade\Db;
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use think\facade\Log;
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/**
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* 神仙 AI · 统一对话调用服务
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*
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* 能力：
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* 1. 自动按 sortWeight / id 升序挑选可用服务商
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* 2. 余额低于阈值的服务商自动降权沉底
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* 3. 故障自动切换（429/401/402/5xx/解析错误）
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* 4. 支持 OpenAI 兼容 / Anthropic 两类协议
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* 5. 全部失败返回降级兜底回答，**不抛给前端**
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*
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* 典型用法：
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* $r = AiCallService::chat([
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* ['role'=>'system','content'=>'你是…'],
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* ['role'=>'user','content'=>'我是 INFP，今天压力大'],
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* ]);
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* // => ['content'=>'...', 'providerId'=>'deepseek', 'isDegraded'=>false]
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*/
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class AiCallService
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{
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/**
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* 对话入口
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*
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* @param array $messages OpenAI messages 格式
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* @param array $options ['temperature'=>0.7, 'maxTokens'=>2048, 'stream'=>false]
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* @return array ['content'=>string, 'providerId'=>string, 'isDegraded'=>bool, 'tokensIn'=>int, 'tokensOut'=>int]
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*/
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public static function chat(array $messages, array $options = []): array
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{
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$maxTokens = (int) ($options['maxTokens'] ?? 2048);
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$temperature = isset($options['temperature']) ? (float) $options['temperature'] : 0.7;
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$providers = self::resolveProviders();
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if (empty($providers)) {
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return self::degrade('no-provider', '小神仙在喝茶呢，超管还没配置好法力，稍后再来找我呀～');
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}
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$lastError = '';
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foreach ($providers as $provider) {
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$providerId = strtolower((string) ($provider->providerId ?? ''));
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$apiKey = $provider->getRawApiKey();
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if ($apiKey === '') {
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continue;
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}
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$endpoint = self::resolveEndpoint($provider);
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$model = !empty($provider->model) ? $provider->model : self::defaultModel($providerId);
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try {
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if ($providerId === 'anthropic') {
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$content = self::callAnthropic($endpoint, $apiKey, $model, $messages, $maxTokens);
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} else {
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// openai / deepseek / moonshot / qwen / zhipu / zhizengzeng / groq 等
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$content = self::callOpenAICompatible($endpoint, $apiKey, $model, $messages, $maxTokens, $temperature);
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}
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if ($content === '') {
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$lastError = "provider={$providerId} empty-content";
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continue;
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}
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return [
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'content' => $content,
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'providerId' => $providerId,
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'model' => $model,
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'isDegraded' => false,
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'tokensIn' => 0, // 各家返回字段不一，留空（可二期补 usage）
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'tokensOut' => 0,
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];
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} catch (\Throwable $e) {
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$lastError = "provider={$providerId} error=" . $e->getMessage();
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Log::warning('AiCallService chat fallback: ' . $lastError);
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// 遇到明显欠费/鉴权类错误，给该服务商的余额打低权重沉底
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if (self::looksLikeBillingError($e->getMessage())) {
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try {
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$provider->sortWeight = 999;
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$provider->save();
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} catch (\Throwable $ignore) {}
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}
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continue;
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}
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}
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return self::degrade('all-failed', '小神仙暂时联系不上天界了（' . $lastError . '），工程师已收到告警，请稍后再试 🌿');
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}
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/**
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* 选出可用服务商列表（按 sortWeight 升序、余额不足的沉底）
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* @return AiProviderModel[]
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*/
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private static function resolveProviders(): array
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{
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$all = AiProviderModel::where('enabled', 1)
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->whereRaw('(visible IS NULL OR visible = 1)')
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->whereRaw('(apiKey IS NOT NULL AND LENGTH(TRIM(apiKey)) > 0)')
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->order('sortWeight', 'asc')
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->order('id', 'asc')
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->select()
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->toArray();
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if (empty($all)) {
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return [];
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}
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// 把「余额低于阈值」的服务商排到队尾
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$healthy = [];
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$depleted = [];
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foreach ($all as $row) {
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$provider = AiProviderModel::where('id', $row['id'])->find();
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if (!$provider) continue;
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$isLowBalance = $provider->balanceAlertEnabled == 1
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&& $provider->lastBalance !== null
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&& $provider->lastBalance <= (float) ($provider->balanceAlertThreshold ?? 0);
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if ($isLowBalance) {
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$depleted[] = $provider;
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} else {
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$healthy[] = $provider;
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}
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}
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return array_merge($healthy, $depleted);
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}
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private static function resolveEndpoint($provider): string
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{
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$endpoint = !empty($provider->apiEndpoint) ? rtrim($provider->apiEndpoint, '/') : '';
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if ($endpoint !== '') return $endpoint;
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return self::defaultEndpoint(strtolower((string) $provider->providerId));
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}
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private static function defaultEndpoint(string $providerId): string
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{
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switch ($providerId) {
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case 'openai': return 'https://api.openai.com/v1';
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case 'groq': return 'https://api.groq.com/openai/v1';
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case 'deepseek': return 'https://api.deepseek.com/v1';
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case 'moonshot': return 'https://api.moonshot.ai/v1';
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case 'qwen': return 'https://dashscope.aliyuncs.com/compatible-mode/v1';
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case 'anthropic': return 'https://api.anthropic.com/v1';
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case 'zhipu': return 'https://api.z.ai/api/paas/v4';
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case 'zhizengzeng': return 'https://api.zhizengzeng.com/v1';
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default: return 'https://api.openai.com/v1';
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}
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}
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private static function defaultModel(string $providerId): string
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{
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switch ($providerId) {
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case 'deepseek': return 'deepseek-chat';
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case 'moonshot': return 'moonshot-v1-8k';
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case 'qwen': return 'qwen-turbo';
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case 'zhipu': return 'glm-4-flash';
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case 'anthropic': return 'claude-3-5-haiku-latest';
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case 'groq': return 'llama-3.1-70b-versatile';
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default: return 'gpt-4o-mini';
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}
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}
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/**
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* OpenAI 兼容协议（deepseek / moonshot / qwen / zhipu / zhizengzeng / groq / openai…）
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*/
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private static function callOpenAICompatible(string $endpoint, string $apiKey, string $model, array $messages, int $maxTokens, float $temperature): string
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{
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$body = [
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'model' => $model,
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'messages' => $messages,
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'temperature' => $temperature,
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];
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if (strpos($endpoint, 'api.zhizengzeng.com') !== false) {
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$body['max_completion_tokens'] = $maxTokens;
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} else {
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$body['max_tokens'] = $maxTokens;
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}
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$url = rtrim($endpoint, '/') . '/chat/completions';
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$payload = json_encode($body, JSON_UNESCAPED_UNICODE);
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$ch = curl_init($url);
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curl_setopt_array($ch, [
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CURLOPT_RETURNTRANSFER => true,
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CURLOPT_TIMEOUT => 60,
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CURLOPT_POST => true,
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CURLOPT_POSTFIELDS => $payload,
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CURLOPT_SSL_VERIFYPEER => false,
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CURLOPT_SSL_VERIFYHOST => false,
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CURLOPT_HTTPHEADER => [
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'Content-Type: application/json',
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'Authorization: Bearer ' . $apiKey,
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],
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]);
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$response = curl_exec($ch);
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$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
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$curlErrNo = curl_errno($ch);
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$curlError = curl_error($ch);
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curl_close($ch);
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if ($response === false || $response === '') {
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throw new \RuntimeException("curl-failed code={$curlErrNo} msg={$curlError}");
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}
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if ($httpCode >= 400) {
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throw new \RuntimeException("http-{$httpCode}: " . substr((string) $response, 0, 400));
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}
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$data = json_decode($response, true);
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if (!is_array($data)) {
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throw new \RuntimeException('invalid-json');
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}
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if (!empty($data['error'])) {
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$errMsg = is_array($data['error']) ? ($data['error']['message'] ?? json_encode($data['error'])) : (string) $data['error'];
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throw new \RuntimeException('api-error: ' . $errMsg);
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}
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$text = $data['choices'][0]['message']['content'] ?? '';
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return trim((string) $text);
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}
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/**
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* Anthropic Messages 协议
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*/
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private static function callAnthropic(string $endpoint, string $apiKey, string $model, array $messages, int $maxTokens): string
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{
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// Anthropic 需要单独传 system，messages 只接受 user/assistant
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$system = '';
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$userMessages = [];
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foreach ($messages as $m) {
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if (($m['role'] ?? '') === 'system') {
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$system .= "\n" . ($m['content'] ?? '');
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} else {
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$userMessages[] = [
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'role' => $m['role'] ?? 'user',
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'content' => [['type' => 'text', 'text' => (string) ($m['content'] ?? '')]],
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];
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}
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}
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$body = [
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'model' => $model,
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'max_tokens' => $maxTokens,
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'messages' => $userMessages,
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];
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if (trim($system) !== '') {
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$body['system'] = trim($system);
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}
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$url = rtrim($endpoint, '/') . '/messages';
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$payload = json_encode($body, JSON_UNESCAPED_UNICODE);
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$ch = curl_init($url);
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curl_setopt_array($ch, [
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CURLOPT_RETURNTRANSFER => true,
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CURLOPT_TIMEOUT => 60,
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CURLOPT_POST => true,
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CURLOPT_POSTFIELDS => $payload,
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CURLOPT_SSL_VERIFYPEER => false,
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CURLOPT_SSL_VERIFYHOST => false,
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CURLOPT_HTTPHEADER => [
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'Content-Type: application/json',
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'x-api-key: ' . $apiKey,
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'anthropic-version: 2023-06-01',
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],
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]);
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$response = curl_exec($ch);
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$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
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curl_close($ch);
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if ($response === false || $response === '') {
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throw new \RuntimeException('anthropic-no-response');
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}
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if ($httpCode >= 400) {
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throw new \RuntimeException("http-{$httpCode}: " . substr((string) $response, 0, 400));
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}
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$data = json_decode($response, true);
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$text = '';
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if (!empty($data['content']) && is_array($data['content'])) {
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foreach ($data['content'] as $block) {
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if (($block['type'] ?? '') === 'text') {
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$text .= (string) ($block['text'] ?? '');
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}
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}
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}
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return trim($text);
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}
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/**
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* 常见欠费/鉴权类错误关键字 → 触发降权
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*/
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private static function looksLikeBillingError(string $msg): bool
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{
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$lower = strtolower($msg);
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foreach (['insufficient', 'balance', 'quota', 'rate_limit', '402', '429', 'unauthorized', '401'] as $kw) {
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if (strpos($lower, $kw) !== false) return true;
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}
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return false;
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}
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private static function degrade(string $reason, string $content): array
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{
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Log::warning('AiCallService degraded: ' . $reason);
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return [
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'content' => $content,
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'providerId' => 'degrade',
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'model' => '',
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'isDegraded' => true,
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'tokensIn' => 0,
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'tokensOut' => 0,
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];
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}
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/**
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* 构造针对某用户的 system prompt（结合 MBTI 类型 + 画像）
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*/
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public static function buildSystemPrompt(array $userContext): string
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{
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$mbtiType = trim((string) ($userContext['mbtiType'] ?? ''));
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$summary = trim((string) ($userContext['summary'] ?? ''));
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$nickname = trim((string) ($userContext['nickname'] ?? ''));
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$prompt = "你是「神仙 AI」，神仙团队 MBTI 性格小程序的专属人格伙伴。\n";
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$prompt .= "说话风格：像朋友一样亲切、简短（每次回答 150 字以内，必要时可延展），不堆砌术语；适度鼓励用户完成其他测评（DISC / PDP / SBTI / 面相）或去「一场 soul 创业实验」公众号阅读相关文章。\n";
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$prompt .= "禁止：做医疗诊断 / 政治议题 / 具体投资建议。\n";
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if ($nickname !== '') {
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$prompt .= "称呼：可以偶尔叫用户「{$nickname}」。\n";
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}
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if ($mbtiType !== '') {
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$prompt .= "用户 MBTI：{$mbtiType}。请结合此类型做个性化回答。\n";
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} else {
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$prompt .= "用户尚未完成 MBTI 测试。回答时可友好建议先去做一下测评。\n";
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}
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if ($summary !== '') {
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$prompt .= "用户性格画像摘要：{$summary}\n";
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}
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$appendix = trim((string) ($userContext['testAppendix'] ?? ''));
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if ($appendix !== '') {
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$prompt .= "\n【用户测评客观记录（含问卷选项，供你结合其当前提问做针对性回答；勿机械罗列题号套话）】\n";
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$prompt .= $appendix . "\n";
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}
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return $prompt;
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}
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/**
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* 拉取用户 MBTI 画像（最近一次 test_results 结果）
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*/
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public static function fetchUserContext(int $userId): array
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{
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if ($userId <= 0) {
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return ['mbtiType' => '', 'summary' => '', 'nickname' => '', 'testAppendix' => ''];
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}
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$nickname = (string) Db::name('wechat_users')->where('id', $userId)->value('nickname');
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$mbtiType = '';
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$summary = '';
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$row = Db::name('test_results')
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->where('userId', $userId)
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->where('testType', 'mbti')
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->order('id', 'desc')
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->find();
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if ($row && !empty($row['resultData'])) {
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$data = is_string($row['resultData']) ? json_decode($row['resultData'], true) : $row['resultData'];
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if (is_array($data)) {
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$mbtiType = (string) ($data['mbtiType'] ?? ($data['mbti']['type'] ?? ''));
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if (!empty($data['description']['summary'])) {
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$summary = (string) $data['description']['summary'];
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} elseif (!empty($data['description']['overview'])) {
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$summary = (string) $data['description']['overview'];
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}
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}
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}
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// 若无 MBTI，尝试回落到面相分析给出的 mbti
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if ($mbtiType === '') {
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$faceRow = Db::name('test_results')
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->where('userId', $userId)
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->where('testType', 'face')
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->order('id', 'desc')
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->find();
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if ($faceRow && !empty($faceRow['resultData'])) {
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$data = is_string($faceRow['resultData']) ? json_decode($faceRow['resultData'], true) : $faceRow['resultData'];
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if (is_array($data) && isset($data['mbti']['type'])) {
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$mbtiType = (string) $data['mbti']['type'];
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$summary = (string) ($data['personalitySummary'] ?? ($data['overview'] ?? ''));
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}
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}
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}
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$testAppendix = self::buildLatestTestsAppendix($userId);
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return [
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'mbtiType' => $mbtiType,
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'summary' => $summary,
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'nickname' => $nickname,
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'testAppendix' => $testAppendix,
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];
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}
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/**
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* 汇总用户最近一次各类型测评的答题与结果，供 system prompt 使用（有长度上限）
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*/
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private static function buildLatestTestsAppendix(int $userId): string
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{
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$types = ['mbti', 'sbti', 'disc', 'pdp'];
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$blocks = [];
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foreach ($types as $type) {
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$row = Db::name('test_results')
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->where('userId', $userId)
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->where('testType', $type)
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->order('id', 'desc')
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->find();
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if (!$row || empty($row['resultData'])) {
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continue;
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}
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$data = is_string($row['resultData']) ? json_decode($row['resultData'], true) : $row['resultData'];
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if (!is_array($data)) {
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continue;
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}
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$block = self::formatTestBlockForPrompt($type, $data);
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if ($block !== '') {
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$blocks[] = $block;
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}
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}
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$text = implode("\n——\n", $blocks);
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if ($text === '') {
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return '';
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}
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$maxLen = 3800;
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if (mb_strlen($text, 'UTF-8') > $maxLen) {
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$text = mb_substr($text, 0, $maxLen, 'UTF-8') . '…（档案已截断）';
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}
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return $text;
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}
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/**
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* @param array<string, mixed> $data
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*/
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private static function formatTestBlockForPrompt(string $testType, array $data): string
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{
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switch ($testType) {
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case 'mbti':
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return self::formatMbtiBlockForPrompt($data);
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case 'sbti':
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return self::formatSbtiBlockForPrompt($data);
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case 'disc':
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return self::formatDiscBlockForPrompt($data);
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case 'pdp':
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return self::formatPdpBlockForPrompt($data);
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default:
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return '';
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}
|
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}
|
||
|
||
/**
|
||
* @param array<string, mixed>|null $answers
|
||
*/
|
||
private static function formatAnswersCompact(?array $answers): string
|
||
{
|
||
if (!is_array($answers) || $answers === []) {
|
||
return '';
|
||
}
|
||
$keys = array_keys($answers);
|
||
sort($keys, SORT_NATURAL);
|
||
$parts = [];
|
||
foreach ($keys as $k) {
|
||
$v = $answers[$k];
|
||
if (is_array($v) || is_object($v)) {
|
||
$v = json_encode($v, JSON_UNESCAPED_UNICODE);
|
||
}
|
||
$parts[] = (string) $k . '→' . (string) $v;
|
||
if (count($parts) >= 100) {
|
||
$parts[] = '…共' . count($keys) . '题';
|
||
break;
|
||
}
|
||
}
|
||
return implode('，', $parts);
|
||
}
|
||
|
||
/**
|
||
* @param array<string, mixed> $data
|
||
*/
|
||
private static function formatMbtiBlockForPrompt(array $data): string
|
||
{
|
||
$lines = ['【MBTI·最近一次】'];
|
||
$type = (string) ($data['mbtiType'] ?? ($data['mbti']['type'] ?? ''));
|
||
if ($type !== '') {
|
||
$lines[] = '类型：' . $type;
|
||
}
|
||
if (isset($data['confidence'])) {
|
||
$lines[] = '置信度：' . (int) $data['confidence'] . '%';
|
||
}
|
||
if (!empty($data['dimensionScores']) && is_array($data['dimensionScores'])) {
|
||
$lines[] = '四轴：' . json_encode($data['dimensionScores'], JSON_UNESCAPED_UNICODE);
|
||
}
|
||
if (!empty($data['scores']) && is_array($data['scores'])) {
|
||
$lines[] = '字母计数：' . json_encode($data['scores'], JSON_UNESCAPED_UNICODE);
|
||
}
|
||
$ans = self::formatAnswersCompact(isset($data['answers']) && is_array($data['answers']) ? $data['answers'] : null);
|
||
if ($ans !== '') {
|
||
$lines[] = '逐题选项（题号/ID→所选）：' . $ans;
|
||
}
|
||
return implode("\n", $lines);
|
||
}
|
||
|
||
/**
|
||
* @param array<string, mixed> $data
|
||
*/
|
||
private static function formatSbtiBlockForPrompt(array $data): string
|
||
{
|
||
$lines = ['【SBTI·最近一次】'];
|
||
$final = $data['finalType'] ?? null;
|
||
$fcode = is_array($final) ? (string) ($final['code'] ?? '') : '';
|
||
$code = (string) ($data['sbtiType'] ?? $fcode);
|
||
if ($code !== '') {
|
||
$lines[] = '类型代码：' . $code;
|
||
}
|
||
if (!empty($data['special'])) {
|
||
$lines[] = '特殊标记：' . json_encode($data['special'], JSON_UNESCAPED_UNICODE);
|
||
}
|
||
$ans = self::formatAnswersCompact(isset($data['answers']) && is_array($data['answers']) ? $data['answers'] : null);
|
||
if ($ans !== '') {
|
||
$lines[] = '逐题选项：' . $ans;
|
||
}
|
||
return implode("\n", $lines);
|
||
}
|
||
|
||
/**
|
||
* @param array<string, mixed> $data
|
||
*/
|
||
private static function formatDiscBlockForPrompt(array $data): string
|
||
{
|
||
$lines = ['【DISC·最近一次】'];
|
||
if (!empty($data['dominantType'])) {
|
||
$lines[] = '主导：' . (string) $data['dominantType'] . '，次要：' . (string) ($data['secondaryType'] ?? '');
|
||
}
|
||
if (!empty($data['scores']) && is_array($data['scores'])) {
|
||
$lines[] = '得分：' . json_encode($data['scores'], JSON_UNESCAPED_UNICODE);
|
||
}
|
||
$ans = self::formatAnswersCompact(isset($data['answers']) && is_array($data['answers']) ? $data['answers'] : null);
|
||
if ($ans !== '') {
|
||
$lines[] = '逐题选项：' . $ans;
|
||
}
|
||
return implode("\n", $lines);
|
||
}
|
||
|
||
/**
|
||
* @param array<string, mixed> $data
|
||
*/
|
||
private static function formatPdpBlockForPrompt(array $data): string
|
||
{
|
||
$lines = ['【PDP·最近一次】'];
|
||
if (!empty($data['dominantType'])) {
|
||
$lines[] = '主导：' . (string) $data['dominantType'] . '，次要：' . (string) ($data['secondaryType'] ?? '');
|
||
}
|
||
if (!empty($data['scores']) && is_array($data['scores'])) {
|
||
$lines[] = '得分：' . json_encode($data['scores'], JSON_UNESCAPED_UNICODE);
|
||
}
|
||
$ans = self::formatAnswersCompact(isset($data['answers']) && is_array($data['answers']) ? $data['answers'] : null);
|
||
if ($ans !== '') {
|
||
$lines[] = '逐题选项：' . $ans;
|
||
}
|
||
return implode("\n", $lines);
|
||
}
|
||
|
||
/**
|
||
* 过滤不在小程序展示的快捷问句（与产品配置一致）
|
||
*
|
||
* @param string[] $questions
|
||
* @return string[]
|
||
*/
|
||
public static function filterQuickQuestions(array $questions): array
|
||
{
|
||
$out = [];
|
||
foreach ($questions as $q) {
|
||
$s = trim((string) $q);
|
||
if ($s === '') {
|
||
continue;
|
||
}
|
||
if (preg_match('/记\s*一下\s*我的\s*MBTI/ui', $s)) {
|
||
continue;
|
||
}
|
||
$out[] = $s;
|
||
}
|
||
return $out;
|
||
}
|
||
|
||
/**
|
||
* 基于 MBTI 类型返回 3 条快捷问句
|
||
*/
|
||
public static function quickQuestions(string $mbtiType): array
|
||
{
|
||
$mbtiType = strtoupper(trim($mbtiType));
|
||
$generic = [
|
||
'我应该找什么样的工作？',
|
||
'我适合什么样的伴侣？',
|
||
'我的职业发展方向是什么？',
|
||
'我最近有点迷茫，有什么建议？',
|
||
'帮我做一个简短的自我介绍',
|
||
'我有哪些需要警惕的盲点？',
|
||
];
|
||
if ($mbtiType === '') return $generic;
|
||
|
||
return [
|
||
"作为 {$mbtiType}，我最大的优势和盲点是什么？",
|
||
"{$mbtiType} 适合什么样的工作？",
|
||
"{$mbtiType} 适合找什么样的伴侣？",
|
||
"{$mbtiType} 的职业发展路径推荐？",
|
||
"{$mbtiType} 如何处理职场人际关系？",
|
||
"{$mbtiType} 最容易掉进什么心理陷阱？",
|
||
];
|
||
}
|
||
}
|