feat(history): establish Telegram SaaS platform foundation

2026-07-27 23:03:00 +08:00
parent cf0eed46c3
commit cd06d049fe
92 changed files with 5608 additions and 3749 deletions
@@ -0,0 +1,48 @@
+function contentText(payload) {
+  return payload?.content?.map((part) => part.text || '').join('') || ''
+}
+
+function parseJson(text) {
+  const cleaned = text.replace(/^```(?:json)?/i, '').replace(/```$/, '').trim()
+  return JSON.parse(cleaned)
+}
+
+export async function deepseek(system, user, json = false) {
+  const apiKey = process.env.DEEPSEEK_API_KEY
+  if (!apiKey) throw Object.assign(new Error('DEEPSEEK_API_KEY 尚未配置'), { status: 503 })
+  const controller = new AbortController()
+  const timeout = setTimeout(() => controller.abort(), Number(process.env.AI_TIMEOUT_MS || 45000))
+  try {
+    const response = await fetch(`${(process.env.DEEPSEEK_BASE_URL || 'https://api.deepseek.com/anthropic').replace(/\/$/, '')}/v1/messages`, {
+      method: 'POST',
+      signal: controller.signal,
+      headers: {
+        'content-type': 'application/json',
+        'x-api-key': apiKey,
+        'anthropic-version': '2023-06-01',
+      },
+      body: JSON.stringify({
+        model: process.env.DEEPSEEK_MODEL || 'deepseek-v4-flash',
+        max_tokens: Number(process.env.AI_MAX_TOKENS || 4096),
+        temperature: json ? 0.1 : 0.3,
+        system,
+        messages: [{ role: 'user', content: [{ type: 'text', text: user }] }],
+      }),
+    })
+    const body = await response.json()
+    if (!response.ok) throw Object.assign(new Error(body?.error?.message || `AI 请求失败 (${response.status})`), { status: 502 })
+    const text = contentText(body)
+    return json ? parseJson(text) : text
+  } finally {
+    clearTimeout(timeout)
+  }
+}
+
+export function conversationContext(messages) {
+  return messages.slice(-80).map((m) => {
+    const role = m.sender === 'agent' ? '坐席' : m.sender === 'system' ? '系统' : '客户'
+    const content = m.originalText || m.attachmentName || `[${m.type || '消息'}]`
+    const translation = m.translatedText && m.translatedText !== content ? `（译文：${m.translatedText}）` : ''
+    return `${m.createdAt || ''} ${role}: ${content}${translation}`
+  }).join('\n')
+}