initial commit

app/api/topic/slug/[slug]/route.ts

@@ -0,0 +1,78 @@
+import { NextRequest, NextResponse } from 'next/server'
+import TopicModel, { transformToTopic } from '@/models/topic'
+import { authMiddleware } from '@/lib/auth-middleware'
+
+// GET /api/topic/slug/[slug] - Get topic by slug (for public viewing)
+export async function GET(
+  request: NextRequest,
+  { params }: { params: Promise<{ slug: string }> }
+) {
+  try {
+    const { slug } = await params
+    
+    if (!slug) {
+      return NextResponse.json(
+        {
+          success: false,
+          error: { message: 'Slug parameter is required', code: 'MISSING_SLUG' },
+        },
+        { status: 400 }
+      )
+    }
+    
+    const topic = await TopicModel.findOne({ slug }).lean()
+    
+    if (!topic) {
+      return NextResponse.json(
+        {
+          success: false,
+          error: { message: 'Topic not found', code: 'NOT_FOUND' },
+        },
+        { status: 404 }
+      )
+    }
+
+    // Check if topic is draft and user is not the owner
+    if (topic.isDraft) {
+      const user = await authMiddleware(request)
+      if (!user || user.id !== topic.authorId) {
+        return NextResponse.json(
+          {
+            success: false,
+            error: { message: 'Topic not found', code: 'NOT_FOUND' },
+          },
+          { status: 404 }
+        )
+      }
+    }
+
+    const transformedTopic = transformToTopic(topic)
+    
+    if (!transformedTopic) {
+      return NextResponse.json(
+        {
+          success: false,
+          error: { message: 'Failed to process topic data', code: 'PROCESSING_ERROR' },
+        },
+        { status: 500 }
+      )
+    }
+    
+    return NextResponse.json(
+      {
+        success: true,
+        data: transformedTopic,
+      },
+      { status: 200 }
+    )
+  } catch (error) {
+    console.error('Error fetching topic by slug:', error)
+    return NextResponse.json(
+      {
+        success: false,
+        error: { message: 'Failed to fetch topic', code: 'SERVER_ERROR' },
+      },
+      { status: 500 }
+    )
+  }
+}