resolve missings chapter

src/routes/personalize.ts

@@ -1,5 +1,7 @@
 import { Hono } from 'hono';
 import { eq } from 'drizzle-orm';
+import { readFile } from 'fs/promises';
+import { join, resolve } from 'path';
 import { db } from '../db/client.js';
 import { userProfiles } from '../db/schema.js';
 import { requireAuth, getAuthContext } from '../middleware/auth.js';
@@ -90,40 +92,34 @@ function validateProfileCompleteness(profile: ProfileResponse | null): ProfileVa
 // =============================================================================
 
 /**
- * Get the base URL for fetching chapter content
- * Uses the deployed Docusaurus site's raw markdown from GitHub
+ * Get the path to chapter content directory
  */
-function getChapterContentBaseUrl(): string {
-  // Fetch raw markdown from GitHub repository
-  return process.env.CHAPTER_CONTENT_URL ||
-    'https://raw.githubusercontent.com/shuremali02/AI_Spec-Driven_Online_Hackathon_1/main/book-write/docs';
+function getChapterContentPath(): string {
+  // Use environment variable or default to relative path from auth service
+  return process.env.CHAPTER_CONTENT_PATH || resolve(process.cwd(), '..', 'book-write', 'docs');
 }
 
 /**
- * Fetch chapter content from GitHub raw URL
+ * Fetch chapter content from filesystem
  * Supports both `chapter-01.md` and `chapter-01/index.md` patterns
  */
 async function fetchChapterContent(chapterId: string): Promise<string | null> {
-  const baseUrl = getChapterContentBaseUrl();
+  const basePath = getChapterContentPath();
 
   // Sanitize chapter ID to prevent directory traversal
   const sanitizedId = chapterId.replace(/\.\./g, '').replace(/^\/+/, '');
 
   // Try different file patterns
   const patterns = [
-    `${baseUrl}/${sanitizedId}.md`,
-    `${baseUrl}/${sanitizedId}.mdx`,
-    `${baseUrl}/${sanitizedId}/index.md`,
-    `${baseUrl}/${sanitizedId}/index.mdx`,
+    join(basePath, `${sanitizedId}.md`),
+    join(basePath, `${sanitizedId}.mdx`),
+    join(basePath, sanitizedId, 'index.md'),
+    join(basePath, sanitizedId, 'index.mdx'),
   ];
 
-  for (const url of patterns) {
+  for (const filePath of patterns) {
     try {
-      const response = await fetch(url);
-      if (!response.ok) {
-        continue;
-      }
-      const content = await response.text();
+      const content = await readFile(filePath, 'utf-8');
       // Strip frontmatter
       const frontmatterMatch = content.match(/^---\n[\s\S]*?\n---\n/);
       if (frontmatterMatch) {
@@ -131,7 +127,7 @@ async function fetchChapterContent(chapterId: string): Promise<string | null> {
       }
       return content;
     } catch {
-      // URL doesn't work, try next pattern
+      // File doesn't exist, try next pattern
       continue;
     }
   }
@@ -378,13 +374,18 @@ personalize.post('/personalize', async (c) => {
     }
 
     // Fetch chapter content (TASK-005)
-    const chapterContent = await fetchChapterContent(body.chapter_id);
+    // For deployment compatibility, allow frontend to provide content directly
+    let chapterContent = body.chapter_content;
     if (!chapterContent) {
-      return c.json({
-        success: false,
-        error: 'CHAPTER_NOT_FOUND',
-        message: 'Chapter not found',
-      }, 404);
+      // Fallback to filesystem fetch if content not provided
+      chapterContent = await fetchChapterContent(body.chapter_id);
+      if (!chapterContent) {
+        return c.json({
+          success: false,
+          error: 'CHAPTER_NOT_FOUND',
+          message: 'Chapter not found and no content provided',
+        }, 404);
+      }
     }
 
     // Log personalization request