Initial reader-api backend extracted from reader

app/api/mod/ai-tools/test-connection/route.ts

@@ -0,0 +1,59 @@
+import { NextResponse } from "next/server"
+import { getServerSession } from "next-auth/next"
+import { authOptions } from "@/lib/auth"
+
+export async function GET() {
+  const session = await getServerSession(authOptions)
+  if (!session || (session.user.role !== "MOD" && session.user.role !== "ADMIN")) {
+    return NextResponse.json({ error: "Không có quyền truy cập" }, { status: 401 })
+  }
+
+  const apiKey = process.env.DEEKSEEK_KEY?.trim() || process.env.DEEPSEEK_KEY?.trim()
+  const model = process.env.DEEPSEEK_MODEL?.trim() || "deepseek-chat"
+
+  if (!apiKey) {
+    return NextResponse.json({ error: "Chưa cấu hình API Key cho DeepSeek (DEEKSEEK_KEY / DEEPSEEK_KEY)" }, { status: 400 })
+  }
+
+  const startedAt = Date.now()
+  try {
+    const controller = new AbortController()
+    const timeout = setTimeout(() => controller.abort(), 15000)
+
+    const res = await fetch("https://api.deepseek.com/v1/chat/completions", {
+      method: "POST",
+      headers: {
+        "Content-Type": "application/json",
+        Authorization: `Bearer ${apiKey}`,
+      },
+      body: JSON.stringify({
+        model,
+        temperature: 0.1,
+        max_tokens: 10,
+        messages: [{ role: "user", content: "Ping! Please reply with 'pong'." }],
+      }),
+      signal: controller.signal,
+    })
+    
+    clearTimeout(timeout)
+
+    if (!res.ok) {
+      const text = await res.text().catch(() => "")
+      throw new Error(`HTTP ${res.status}: ${text.slice(0, 100)}`)
+    }
+
+    const data = await res.json()
+    const text = data.choices?.[0]?.message?.content?.trim() || ""
+    
+    return NextResponse.json({ 
+      success: true, 
+      message: `DeepSeek phản hồi thành công: "${text}"`,
+      latencyMs: Date.now() - startedAt,
+      model 
+    })
+  } catch (error: any) {
+    return NextResponse.json({ 
+      error: `Kết nối DeepSeek thất bại: ${error.message}` 
+    }, { status: 500 })
+  }
+}