Refactor code structure for improved readability and maintainability

.dockerignore

@@ -0,0 +1,10 @@
+__pycache__/
+*.pyc
+*.pyo
+*.pyd
+.venv/
+.git/
+.gitignore
+.DS_Store
+node_modules/
+.next/

.env.example

@@ -0,0 +1,15 @@
+# PostgreSQL + MongoDB
+DATABASE_URL=postgresql://reader:reader@localhost:5432/reader
+MONGODB_URI=mongodb://localhost:27017/reader
+
+# Auth / OAuth
+NEXTAUTH_SECRET=replace-with-strong-secret
+MOBILE_JWT_SECRET=replace-with-strong-secret
+# Comma-separated allowed Google OAuth client IDs (web + android if needed)
+GOOGLE_CLIENT_ID=web-client-id.apps.googleusercontent.com,android-client-id.apps.googleusercontent.com
+
+# CORS (comma-separated), * for all in local dev
+CORS_ORIGINS=http://localhost:3000,http://127.0.0.1:3000
+
+# Environment label
+APP_ENV=development

.github/workflows/docker-publish.yml

@@ -0,0 +1,43 @@
+name: Build and Push Docker Image
+
+on:
+  push:
+
+jobs:
+  docker:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log in to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: Log in to GitHub Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and push image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: ./Dockerfile
+          push: true
+          tags: |
+            fevirtus/reader-api:latest
+            ghcr.io/fevirtus/reader-api:latest
+          cache-from: type=gha
+          cache-to: type=gha,mode=max

.gitignore

@@ -1,12 +1,14 @@
-# v0 runtime files
-__v0_runtime_loader.js
-__v0_devtools.tsx
-__v0_jsx-dev-runtime.ts
+__pycache__/
+*.pyc
+*.pyo
+*.pyd
+.Python
+.venv/
+dist/
+build/
 
-# Common ignores
-node_modules/
-.next/
-.env*.local
 .DS_Store
 .env
-test-ebook/
+.env.local
+# Local debug/test scripts
+test_*.py

CHAPTER_SAVE_DEBUG.md

@@ -0,0 +1,256 @@
+# 🐛 Chapter Save Debugging Guide
+
+## Vấn Đề Đã Fix
+
+### ✅ Fix 1: Ownership Check (Line 932)
+- **Vấn đề:** MOD không thể tạo chapter cho truyện mặc định (uploaderId = NULL)
+- **Fix:** Thêm `OR uploaderId IS NULL` vào WHERE clause
+- **Dòng:** 932, 1002
+
+### ✅ Fix 2: Input Validation
+- **Vấn đề:** Content có thể trống, number có thể âm  
+- **Fix:** Thêm validation trước insert
+- **Dòng:** 920-927, 997-1004
+
+### ✅ Fix 3: Data Consistency Logging
+- **Vấn đề:** Nếu MongoDB insert succeed nhưng PostgreSQL fail → dữ liệu inconsistent
+- **Fix:** Thêm separate error handling và logging [CRITICAL]
+- **Dòng:** 956-974
+
+---
+
+## 🔍 Testing Checklist
+
+### A. Network Debugging (Browser DevTools)
+
+1. **Mở DevTools:** F12 → Network tab
+2. **Ấn "Lưu chương"**
+3. **Kiểm tra request `POST /api/mod/chuong`:**
+   - ✅ Status code: `201` = success, `4xx`/`5xx` = error
+   - ✅ Response body: Phần lấy `id`, `number`, `title`
+   - ❌ Status 403: Ownership issue
+   - ❌ Status 400: Duplicate or validation error
+   - ❌ Status 500: Server error (check [CRITICAL] logs)
+
+### B. MongoDB Verification
+
+```bash
+# Access MongoDB
+mongosh  # hoặc mongo
+
+# Switch to database
+use reader_db  # (thay bằng tên DB thực tế)
+
+# List recent chapters
+db.chapters.find({}, {novelId: 1, number: 1, title: 1, createdAt: 1})
+  .sort({_id: -1})
+  .limit(5)
+
+# Check specific novel
+db.chapters.countDocuments({novelId: "YOUR_NOVEL_ID"})
+
+# Check for duplicates (race condition)
+db.chapters.find({novelId: "YOUR_NOVEL_ID", number: 1})
+```
+
+### C. PostgreSQL Verification
+
+```bash
+# Access PostgreSQL
+psql  # hoặc your database client
+
+# Check novel total chapters count
+SELECT id, title, "totalChapters" FROM "Novel" WHERE id = 'YOUR_NOVEL_ID';
+
+# Verify it matches MongoDB count
+-- MongoDB should have same count as "totalChapters"
+```
+
+### D. Server Log Analysis
+
+Look for these patterns in backend logs:
+
+```
+✅ Success:
+[timestamp] POST /mod/chuong - Status 201
+[timestamp] Inserted chapter id: xxx
+
+❌ Issues:
+[CRITICAL] ⚠️ INCONSISTENT STATE: Chapter inserted in MongoDB...
+[timestamp] Lỗi MongoDB: [error message]
+[timestamp] Ownership check failed: 403
+```
+
+---
+
+## 🚀 Common Scenarios & Solutions
+
+### Scenario 1: Network Shows 201 But Chapter Not Visible
+
+**Cause:** Chapter saved but not refreshed in UI
+**Solution:** 
+- Press F5 to refresh page
+- Check MongoDB to confirm chapter exists
+- Check if `fetchChapters()` was called after save
+
+### Scenario 2: Network Shows 403 Forbidden
+
+**Cause:** Novel ownership check failed
+**Solution:**
+- Verify you are MOD or ADMIN user
+- Verify novel exists in PostgreSQL: 
+  ```sql
+  SELECT id, title, "uploaderId" FROM "Novel" WHERE id = 'YOUR_ID';
+  ```
+- If uploaderId is NULL (default), ensure you're MOD user
+
+### Scenario 3: Network Shows 400 Bad Request
+
+**Causes:**
+- Chapter number already exists
+- Title or content empty
+- Chapter number ≤ 0
+
+**Solution:** Check response detail message and fix input
+
+### Scenario 4: Network Shows 500 Server Error
+
+**Cause:** MongoDB or PostgreSQL failure
+**Solution:**
+- Check server logs for [CRITICAL] message
+- If MongoDB failed: Check MongoDB connection
+- If PostgreSQL failed: Check PostgreSQL connection
+- Contact admin with error message
+
+---
+
+## 🔧 Advanced Debug Commands
+
+### Check MongoDB Connection Status
+
+```bash
+# From backend terminal
+python3 -c "
+import asyncio
+from app.database import mongo_db
+
+async def check():
+    await mongo_db.command('ping')
+    print('✓ MongoDB Connected!')
+
+asyncio.run(check())
+"
+```
+
+### Check PostgreSQL Connection Status
+
+```bash
+# From backend terminal
+python3 -c "
+import asyncio
+from sqlalchemy.ext.asyncio import create_async_engine
+from app.database import SessionLocal
+
+async def check():
+    async with SessionLocal() as session:
+        result = await session.execute('SELECT 1')
+        print('✓ PostgreSQL Connected!')
+
+asyncio.run(check())
+"
+```
+
+### Manually Sync Total Chapters
+
+```bash
+# If totalChapters is out of sync
+mongosh
+use reader_db
+
+# Get count
+db.chapters.countDocuments({novelId: "YOUR_NOVEL_ID"})
+
+# Then update PostgreSQL manually:
+# psql
+UPDATE "Novel" SET "totalChapters" = 123 WHERE id = 'YOUR_NOVEL_ID';
+```
+
+---
+
+## 📋 Test Cases
+
+### Test 1: Basic Chapter Save
+```
+1. Create novel
+2. Save chapter #1
+3. ✅ Should appear in chapter list
+4. ✅ totalChapters should be 1
+```
+
+### Test 2: Sequential Chapters
+```
+1. Save chapters 1, 2, 3
+2. ✅ All should appear with correct numbers
+3. ✅ Next chapter field should suggest 4
+```
+
+### Test 3: Duplicate Prevention
+```
+1. Save chapter #5
+2. Try to save chapter #5 again
+3. ✅ Should show "Chương 5 đã tồn tại"
+```
+
+### Test 4: Default Novel (MOD Permission)
+```
+1. Verify a novel with uploaderId = NULL exists
+2. As MOD user, save chapter to that novel
+3. ✅ Should succeed (not 403 Forbidden)
+```
+
+### Test 5: No Empty Content
+```
+1. Try to save chapter with empty title
+2. ✅ Should show "Tiêu đề chương không được trống"
+3. Try to save chapter with empty content
+4. ✅ Should show "Nội dung chương không được trống"
+```
+
+---
+
+## 🆘 Still Having Issues?
+
+1. **Run checklist A, B, C above** and collect outputs
+2. **Screenshot of Network tab response**
+3. **MongoDB output from `find()`**
+4. **Server log output (especially [CRITICAL] lines)**
+5. Share these with: [your-dev-contact]
+
+---
+
+## 📊 Monitoring
+
+### Health Check Script
+
+```bash
+#!/bin/bash
+# save as monitor-save.sh
+
+echo "=== Chapter Save System Health Check ==="
+echo ""
+echo "1. MongoDB Connection:"
+# mongosh check here
+
+echo ""
+echo "2. PostgreSQL Connection:"
+# psql check here
+
+echo ""
+echo "3. Backend API:"
+curl -s http://localhost:8000/docs | head -20
+
+echo ""
+echo "=== Done ==="
+```
+
+Run: `bash monitor-save.sh`

Dockerfile

@@ -0,0 +1,18 @@
+FROM python:3.12-slim
+
+ENV PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1
+
+WORKDIR /app
+
+RUN pip install --no-cache-dir uv
+
+COPY pyproject.toml ./
+RUN uv sync --no-dev
+
+COPY app ./app
+COPY prisma ./prisma
+
+EXPOSE 8000
+
+CMD ["uv", "run", "uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000"]

FIXES_APPLIED.md

@@ -0,0 +1,186 @@
+# ✅ Chapter Save System - Fixed Issues Summary
+
+**Date:** 2026-03-24  
+**Status:** All HIGH priority issues fixed ✅  
+
+---
+
+## 🐛 Issues Identified & Fixed
+
+### 1️⃣ **Ownership Check Bypass (HIGH)**
+- **File:** `app/routers/mod.py`
+- **Lines:** 932-936 (POST), 1000-1007 (PUT)
+- **Issue:** MOD couldn't create chapters for default novels (uploaderId = NULL)
+- **Fix:** Changed query from:
+  ```python
+  WHERE id = :nid AND "uploaderId" = :uid
+  ```
+  To:
+  ```python
+  WHERE id = :nid AND ("uploaderId" = :uid OR "uploaderId" IS NULL)
+  ```
+- **Impact:** ✅ Fixed - MOD can now manage default novels
+
+### 2️⃣ **Missing Input Validation (HIGH)**
+- **File:** `app/routers/mod.py`
+- **Lines:** 920-927 (POST), 997-1004 (PUT)
+- **Issue:** Could save empty title/content, negative chapter numbers
+- **Fix:** Added validation:
+  ```python
+  if not body.title or not body.title.strip():
+      raise HTTPException(400, "Tiêu đề chương không được trống")
+  if body.number <= 0:
+      raise HTTPException(400, "Số chương phải > 0")
+  ```
+- **Impact:** ✅ Fixed - Invalid data rejected at API level
+
+### 3️⃣ **Data Inconsistency on PostgreSQL Failure (HIGH)**
+- **File:** `app/routers/mod.py`
+- **Lines:** 956-974 (POST)
+- **Issue:** If MongoDB insert succeeds but PostgreSQL sync fails → inconsistent state
+- **Fix:** Added separate error handling:
+  ```python
+  try:
+      result = await mongo_db.chapters.insert_one(doc)
+  except Exception as mongo_err:
+      raise HTTPException(500, f"Lỗi MongoDB: {str(mongo_err)}")
+  
+  try:
+      total = await _sync_total_chapters(db, body.novelId)
+  except Exception as pg_err:
+      # Log [CRITICAL] and alert user
+      raise HTTPException(500, "Dữ liệu has được lưu nhưng...")
+  ```
+- **Impact:** ✅ Fixed - Clear error messages identify MongoDB vs PostgreSQL failures
+
+### 4️⃣ **Frontend Error Display (MEDIUM)**
+- **File:** `reader/app/mod/chuong/chapter-client.tsx`
+- **Line:** 356
+- **Issue:** Only checked `error` field, not FastAPI's `detail` field
+- **Fix:** Changed:
+  ```javascript
+  if (!res.ok) throw new Error(resData.error || resData.detail || "...")
+  ```
+- **Impact:** ✅ Fixed - Users see actual backend error messages
+
+### 5️⃣ **Missing Novel Existence Check (MEDIUM)**
+- **File:** `app/routers/mod.py`
+- **Lines:** 948-951 (POST)
+- **Issue:** Could try to save chapter for non-existent novel
+- **Fix:** Added explicit check:
+  ```python
+  novel_check = await db.execute(
+      text('SELECT id FROM "Novel" WHERE id = :nid'),
+      {"nid": body.novelId},
+  )
+  if not novel_check.first():
+      raise HTTPException(404, "Truyện không tồn tại")
+  ```
+- **Impact:** ✅ Fixed - Better error message (404 instead of 500)
+
+---
+
+## 📊 Testing Results
+
+### Build Verification
+```
+✅ Python syntax: OK (py_compile passed)
+✅ Next.js build: OK (all 11 routes successfully compiled)
+✅ No type errors in modified files
+```
+
+### Modified Files
+| File | Changes | Status |
+|------|---------|--------|
+| `app/routers/mod.py` | POST/PUT endpoints refactored with validation | ✅ Fixed |
+| `reader/app/mod/chuong/chapter-client.tsx` | Error handling improved | ✅ Fixed |
+| `CHAPTER_SAVE_DEBUG.md` | Debug guide created | ✅ New |
+
+---
+
+## 🚀 Next Steps for User
+
+### ⚠️ IMPORTANT: Test the following scenarios
+
+1. **Basic Save:** Create new novel → save Chapter 1 → verify appears in list
+2. **Ownership:** Try saving to default novel as MOD user → should succeed now
+3. **Duplicate:** Try saving same chapter twice → should show "đã tồn tại"
+4. **Empty Content:** Try saving without title → should show validation error
+5. **Negative Number:** Try chapter #-1 → should reject
+
+### If Still Failing:
+
+1. Open **DevTools Network tab** → F12 → Network
+2. Try to save chapter
+3. Look for **POST /api/mod/chuong** request
+4. Check **Status code** and **Response body**
+5. Use guide in `CHAPTER_SAVE_DEBUG.md` to troubleshoot
+
+### Possible Remaining Issues
+
+⚠️ **Not yet fixed (MEDIUM/LOW priority):**
+- [ ] Race condition on duplicate chapter check (add MongoDB unique index)
+- [ ] No MongoDB/PostgreSQL timeout configuration
+- [ ] Generic exception handler logging (uses traceback.print_exc)
+- [ ] Missing structured logging system
+
+These are less critical but could cause issues under high load.
+
+---
+
+## 📝 Code Changes Summary
+
+**Total lines modified:** ~150  
+**Files affected:** 2  
+**Breaking changes:** None (backward compatible)  
+**Rollback difficulty:** Low (simple validation additions)
+
+---
+
+## ✨ What Changed
+
+```diff
+# POST /mod/chuong
+- Missing input validation
+- Missing novel existence check
+- Ownership query doesn't allow NULL uploaderId
+- No separation of MongoDB vs PostgreSQL error handling
+
++ Full input validation (title, content, number)
++ Novel existence check with clear 404 error
++ Ownership check allows both user-owned and default novels
++ Separate error handling for MongoDB and PostgreSQL
++ Better error messages for debugging
++ Data consistency logging ([CRITICAL] alerts)
+
+# PUT /mod/chuong
+- Same issues as POST
+
++ Same fixes applied
+
+# Frontend error handling
+- Ignored FastAPI's 'detail' field
+
++ Now checks both 'error' and 'detail' fields
+```
+
+---
+
+## 🔍 Monitoring Recommendations
+
+1. **Set up log monitoring** for `[CRITICAL]` messages
+2. **Verify MongoDB connection** on startup
+3. **Verify PostgreSQL connection** on startup
+4. **Add request logging** to track save operations
+5. **Monitor totalChapters sync** for discrepancies
+
+---
+
+## 📞 Support
+
+If issues persist after testing:
+1. Follow debugging guide in `CHAPTER_SAVE_DEBUG.md`
+2. Check Network tab for response codes
+3. Verify MongoDB and PostgreSQL connectivity
+4. Look for [CRITICAL] messages in server logs
+5. Check browser console for JavaScript errors

README.md

@@ -1,180 +1,101 @@
-# reader-api
+# reader-api (FastAPI + UV)
 
-Đây là backend API dùng chung cho cả web app `reader` và mobile app `reader-app`.
+Shared backend API for both:
+- Web app: reader
+- Mobile app: reader-app
 
-## 🚀 Tính năng nổi bật
+This project is Python-first (FastAPI), with production-focused Docker setup and healthcheck.
 
-- **Xác thực & Phân quyền**: Đăng nhập bằng Google Authentication (NextAuth). Hỗ trợ phân quyền người dùng (USER, MOD, ADMIN).
-- **Quản lý nội dung (Dành cho MOD/ADMIN)**: Dashboard quản lý truyện, tải lên chương mới, quản lý trạng thái truyện (Đang ra, Hoàn thành, Tạm ngưng).
-- **Trải nghiệm đọc**: Khám phá truyện theo thể loại, tìm kiếm truyện, đọc chương truyện với hiệu suất cao (nội dung lưu ở MongoDB).
-- **Tương tác người dùng**: Tính năng tủ sách (bookmark) giúp lưu lại tiến độ đọc, hỗ trợ bình luận ở truyện và từng chương.
+## Stack
 
-## 🛠 Tech Stack
+- Python 3.11+
+- FastAPI
+- UV (package manager / runner)
+- PostgreSQL (structured data)
+- MongoDB (chapter content + user recommendations)
 
-- **Framework**: [Next.js](https://nextjs.org/) (App Router), React 19
-- **Styling**: [TailwindCSS v4](https://tailwindcss.com/) & [Radix UI](https://www.radix-ui.com/) (shadcn/ui)
-- **Database Hybrid**:
-  - **PostgreSQL**: Lưu trữ dữ liệu cấu trúc (Tài khoản, Truyện, Thể loại, Bình luận, Tủ sách) thông qua **Prisma ORM**.
-  - **MongoDB**: Lưu trữ nội dung lớn (Chương truyện) thông qua **Mongoose**.
-- **Auth**: [NextAuth.js](https://next-auth.js.org/)
+## API Base URL
 
----
+- Local dev: http://localhost:8000
+- Healthcheck: GET /api/health
 
-## 💻 Hướng dẫn chạy Local (Phát triển)
+## Environment
 
-### 1. Yêu cầu cài đặt
-- [Node.js](https://nodejs.org/) (Khuyến nghị bản LTS)
-- [pnpm](https://pnpm.io/) (Tool quản lý package)
-- Database: PostgreSQL và MongoDB đang chạy cục bộ hoặc trên máy chủ.
+Create `.env` from `.env.example`.
 
-### 2. Cấu hình môi trường
-Tạo file `.env` ở thư mục gốc dựa trên `.env.example` (nếu có) hoặc điền các thông tin sau:
+Required keys:
 
 ```env
-# URL kết nối PostgreSQL
-DATABASE_URL="postgresql://user:password@localhost:5432/reader?schema=public"
-
-# URL kết nối MongoDB
-MONGODB_URI="mongodb://user:password@localhost:27017/reader?authSource=admin"
-
-# Cấu hình NextAuth
-NEXTAUTH_SECRET="your-super-secret-key"
-NEXTAUTH_URL="http://localhost:3000"
-
-# Cấu hình Google Login
-GOOGLE_CLIENT_ID="your_google_client_id"
-GOOGLE_CLIENT_SECRET="your_google_client_secret"
-
-# AI Tool cho MOD (LLM + web search)
-OPENAI_API_KEY="your_openai_api_key"
-# Tùy chọn, mặc định: gpt-4o-mini-search-preview
-OPENAI_WEB_MODEL="gpt-4o-mini-search-preview"
-
-# Cloudflare R2 (lưu ảnh bìa)
-R2_ACCOUNT_ID="your_cloudflare_account_id"
-R2_ACCESS_KEY_ID="your_r2_access_key_id"
-R2_SECRET_ACCESS_KEY="your_r2_secret_access_key"
-R2_BUCKET_NAME="your_r2_bucket_name"
-R2_PUBLIC_BASE_URL="https://your-public-r2-domain"
+DATABASE_URL=postgresql://reader:reader@localhost:5432/reader
+MONGODB_URI=mongodb://localhost:27017/reader
+NEXTAUTH_SECRET=replace-with-strong-secret
+MOBILE_JWT_SECRET=replace-with-strong-secret
+# Comma-separated allowed Google OAuth client IDs
+GOOGLE_CLIENT_ID=web-client-id.apps.googleusercontent.com,android-client-id.apps.googleusercontent.com
+CORS_ORIGINS=http://localhost:3000,http://127.0.0.1:3000
+APP_ENV=development
 ```
 
-### 3. Cài đặt dependencies và khởi tạo DB
+## Dev Setup (UV)
+
+1. Install UV
 
 ```bash
-# Cài đặt các gói thư viện
-pnpm install
-
-# Đồng bộ schema xuống PostgreSQL và generate Prisma client
-npx prisma db push
-# hoặc (nếu muốn dùng migrate)
-# npx prisma migrate dev
-
-# Generate thư viện Prisma
-npx prisma generate
+curl -LsSf https://astral.sh/uv/install.sh | sh
 ```
 
-### 4. Chạy môi trường phát triển
+2. Sync dependencies
 
 ```bash
-pnpm dev
+uv sync
 ```
-API chạy mặc định ở [http://localhost:3001](http://localhost:3001).
-Ví dụ endpoint: [http://localhost:3001/api/novels/browse](http://localhost:3001/api/novels/browse).
 
----
-
-## 🏗 Hướng dẫn Build
-
-Để build project cho môi trường production:
+3. Run API in dev mode
 
 ```bash
-# Đảm bảo Prisma Client đã được generate
-npx prisma generate
-
-# Chạy lệnh build của Next.js
-pnpm build
+uv run uvicorn app.main:app --reload --host 0.0.0.0 --port 8000
 ```
 
-Sau khi build xong, bạn có thể khởi chạy server production bằng:
-```bash
-pnpm start
-```
-
----
-
-## 🐳 Triển khai dưới dạng Docker
-
-Bạn có thể dễ dàng triển khai ứng dụng bằng nền tảng Docker. Dưới đây là cách đóng gói và chạy thông qua `docker-compose`.
-
-### 1. Tạo file `Dockerfile`
-Tạo file `Dockerfile` ở thư mục gốc của dự án với cấu hình multi-stage build để tối ưu dung lượng:
-
-```dockerfile
-# Stage 1: Dependencies
-FROM node:22-alpine AS deps
-WORKDIR /app
-COPY package.json pnpm-lock.yaml ./
-RUN corepack enable pnpm && pnpm install --frozen-lockfile
-
-# Stage 2: Builder
-FROM node:22-alpine AS builder
-WORKDIR /app
-COPY --from=deps /app/node_modules ./node_modules
-COPY . .
-# Tạo prisma client
-RUN npx prisma generate
-# Chạy build
-RUN corepack enable pnpm && pnpm build
-
-# Stage 3: Runner
-FROM node:22-alpine AS runner
-WORKDIR /app
-ENV NODE_ENV=production
-
-COPY --from=builder /app/public ./public
-COPY --from=builder /app/.next/standalone ./
-COPY --from=builder /app/.next/static ./.next/static
-
-EXPOSE 3000
-ENV PORT=3000
-
-CMD ["node", "server.js"]
-```
-*(Lưu ý: Để build mục `standalone` hoạt động, bạn cần bổ sung `output: 'standalone'` trong file `next.config.mjs`)*
-
-### 2. Tạo file `docker-compose.yml`
-Sử dụng Docker Compose để chạy ứng dụng (giả sử Database của bạn được host riêng hoặc bạn có thể thêm service DB vào file này):
-
-```yaml
-version: '3.8'
-
-services:
-  web:
-    build:
-      context: .
-      dockerfile: Dockerfile
-    image: reader-web:latest
-    container_name: reader-app
-    ports:
-      - "3000:3000"
-    env_file:
-      - .env
-    restart: unless-stopped
-```
-
-### 3. Khởi chạy bằng Docker
-Chạy lệnh sau để build image và start container:
+4. Verify health
 
 ```bash
-# Build và chạy ngầm (detached mode)
-docker-compose up -d --build
+curl http://localhost:8000/api/health
 ```
 
-Để xem log của container:
+## Docker Compose
+
+### Production-style API only (external DBs)
+
 ```bash
-docker-compose logs -f web
+docker compose up -d --build api
 ```
-Dừng và xóa container:
+
+### Full local stack (API + Postgres + Mongo)
+
 ```bash
-docker-compose down
+docker compose --profile localdb up -d --build
 ```
+
+## Implemented Endpoints
+
+- GET /api/health
+- POST /api/auth/mobile-login
+- GET /api/user/profile
+- GET/POST /api/user/bookmarks
+- DELETE /api/user/bookmarks/{novelId}
+- POST /api/user/reading-progress
+- GET/POST /api/user/settings
+- GET/POST/DELETE /api/user/recommendations
+- GET /api/genres
+- GET /api/novels/browse
+- GET /api/novels/{idOrSlug}
+- GET /api/truyen/{id}/chapters
+- GET/POST /api/truyen/{id}/comments
+- POST /api/truyen/{id}/rate
+- GET /api/truyen/suggest
+- GET /api/chapters/{chapterId}
+
+## Notes
+
+- Web session auth is supported via NextAuth session cookies (next-auth.session-token and secure variants).
+- Mobile auth is supported via Bearer JWT from /api/auth/mobile-login.

app/auth.py

@@ -0,0 +1,107 @@
+from __future__ import annotations
+
+import datetime as dt
+import os
+from typing import Any
+
+from fastapi import Depends, HTTPException, Request
+from jose import JWTError, jwt
+from sqlalchemy import text
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.config import settings
+from app.database import get_db_session
+
+SESSION_COOKIE_KEYS = [
+    "next-auth.session-token",
+    "__Secure-next-auth.session-token",
+    "authjs.session-token",
+    "__Secure-authjs.session-token",
+]
+
+
+def _jwt_secret() -> str:
+    return settings.mobile_jwt_secret or settings.nextauth_secret
+
+
+def create_access_token(user_id: str) -> str:
+    now = dt.datetime.now(dt.timezone.utc)
+    payload = {
+        "sub": user_id,
+        "iat": int(now.timestamp()),
+        "exp": int((now + dt.timedelta(days=7)).timestamp()),
+    }
+    secret = _jwt_secret()
+    if not secret:
+        raise RuntimeError("Missing MOBILE_JWT_SECRET or NEXTAUTH_SECRET")
+    return jwt.encode(payload, secret, algorithm="HS256")
+
+
+async def _get_user_by_id(db: AsyncSession, user_id: str) -> dict[str, Any] | None:
+    result = await db.execute(
+        text(
+            'SELECT id, email, name, image, role FROM "User" WHERE id = :user_id LIMIT 1'
+        ),
+        {"user_id": user_id},
+    )
+    row = result.mappings().first()
+    return dict(row) if row else None
+
+
+async def _get_user_from_session_cookie(db: AsyncSession, request: Request) -> dict[str, Any] | None:
+    token = None
+    for key in SESSION_COOKIE_KEYS:
+        value = request.cookies.get(key)
+        if value:
+            token = value
+            break
+
+    if not token:
+        return None
+
+    result = await db.execute(
+        text(
+            'SELECT u.id, u.email, u.name, u.image, u.role '
+            'FROM "Session" s '
+            'JOIN "User" u ON u.id = s."userId" '
+            'WHERE s."sessionToken" = :token AND s.expires > NOW() '
+            'LIMIT 1'
+        ),
+        {"token": token},
+    )
+    row = result.mappings().first()
+    return dict(row) if row else None
+
+
+async def resolve_current_user(db: AsyncSession, request: Request) -> dict[str, Any] | None:
+    auth = request.headers.get("authorization", "")
+    if auth.lower().startswith("bearer "):
+        token = auth.split(" ", 1)[1].strip()
+        secret = _jwt_secret()
+        if not secret:
+            return None
+        try:
+            payload = jwt.decode(token, secret, algorithms=["HS256"])
+            subject = payload.get("sub")
+            if isinstance(subject, str) and subject:
+                return await _get_user_by_id(db, subject)
+        except JWTError:
+            return None
+
+    return await _get_user_from_session_cookie(db, request)
+
+
+async def require_current_user(db: AsyncSession, request: Request) -> dict[str, Any]:
+    user = await resolve_current_user(db, request)
+    if not user:
+        raise HTTPException(status_code=401, detail="Unauthorized")
+    return user
+
+
+async def require_mod_user(request: Request, db: AsyncSession = Depends(get_db_session)) -> dict[str, Any]:
+    user = await resolve_current_user(db, request)
+    if not user:
+        raise HTTPException(status_code=401, detail="Unauthorized")
+    if user.get("role") not in ("MOD", "ADMIN"):
+        raise HTTPException(status_code=403, detail="Forbidden: MOD or ADMIN role required")
+    return user

app/config.py

@@ -0,0 +1,45 @@
+from pydantic_settings import BaseSettings, SettingsConfigDict
+
+
+class Settings(BaseSettings):
+    model_config = SettingsConfigDict(env_file=".env", env_file_encoding="utf-8", extra="ignore")
+
+    app_name: str = "reader-api"
+    app_env: str = "development"
+
+    database_url: str
+    mongodb_uri: str
+
+    google_client_id: str = ""
+    nextauth_secret: str = ""
+    mobile_jwt_secret: str = ""
+
+    cors_origins: str = "*"
+    r2_account_id: str = ""
+    r2_access_key_id: str = ""
+    r2_secret_access_key: str = ""
+    r2_bucket_name: str = ""
+    r2_public_base_url: str = ""
+
+    deepseek_key: str = ""
+    deepseek_model: str = "deepseek-chat"
+    openrouter_key: str = ""
+    openrouter_paused: str = "true"
+
+    @property
+    def google_client_id_list(self) -> list[str]:
+        raw = (self.google_client_id or "").strip()
+        if not raw:
+            return []
+        return [item.strip() for item in raw.split(",") if item.strip()]
+
+
+    @property
+    def cors_origin_list(self) -> list[str]:
+        raw = (self.cors_origins or "*").strip()
+        if raw == "*":
+            return ["*"]
+        return [item.strip() for item in raw.split(",") if item.strip()]
+
+
+settings = Settings()

app/database.py

@@ -0,0 +1,45 @@
+from motor.motor_asyncio import AsyncIOMotorClient
+from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker, create_async_engine
+
+from app.config import settings
+
+
+def _normalize_database_url(url: str) -> str:
+    # Strip Prisma-only query params (e.g. ?schema=public) that asyncpg doesn't accept
+    from urllib.parse import urlparse, urlencode, parse_qsl, urlunparse
+
+    _PRISMA_ONLY_PARAMS = {"schema", "connection_limit", "pool_timeout", "connect_timeout", "sslmode"}
+
+    if url.startswith("postgresql+asyncpg://"):
+        scheme = "postgresql+asyncpg"
+    elif url.startswith("postgresql://") or url.startswith("postgres://"):
+        scheme = "postgresql+asyncpg"
+    else:
+        return url
+
+    parsed = urlparse(url)
+    clean_params = [(k, v) for k, v in parse_qsl(parsed.query) if k not in _PRISMA_ONLY_PARAMS]
+    clean_url = urlunparse((
+        scheme,
+        parsed.netloc,
+        parsed.path,
+        parsed.params,
+        urlencode(clean_params),
+        parsed.fragment,
+    ))
+    return clean_url
+
+
+engine = create_async_engine(_normalize_database_url(settings.database_url), pool_pre_ping=True)
+SessionLocal = async_sessionmaker(engine, class_=AsyncSession, expire_on_commit=False)
+
+mongo_client = AsyncIOMotorClient(settings.mongodb_uri)
+mongo_db = mongo_client.get_default_database()
+
+
+async def get_db_session() -> AsyncSession:
+    session = SessionLocal()
+    try:
+        yield session
+    finally:
+        await session.close()

docker-compose.yml

@@ -0,0 +1,59 @@
+services:
+  api:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    image: reader-api:latest
+    container_name: reader-api
+    env_file:
+      - .env
+    ports:
+      - "8000:8000"
+    restart: unless-stopped
+    healthcheck:
+      test: ["CMD", "python", "-c", "import urllib.request; urllib.request.urlopen('http://127.0.0.1:8000/api/health').read()"]
+      interval: 30s
+      timeout: 5s
+      retries: 5
+      start_period: 20s
+    depends_on:
+      postgres:
+        condition: service_healthy
+      mongo:
+        condition: service_healthy
+
+  postgres:
+    image: postgres:16-alpine
+    container_name: reader-api-postgres
+    profiles: ["localdb"]
+    environment:
+      POSTGRES_DB: reader
+      POSTGRES_USER: reader
+      POSTGRES_PASSWORD: reader
+    ports:
+      - "5432:5432"
+    volumes:
+      - postgres_data:/var/lib/postgresql/data
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U reader -d reader"]
+      interval: 10s
+      timeout: 5s
+      retries: 10
+
+  mongo:
+    image: mongo:7
+    container_name: reader-api-mongo
+    profiles: ["localdb"]
+    ports:
+      - "27017:27017"
+    volumes:
+      - mongo_data:/data/db
+    healthcheck:
+      test: ["CMD", "mongosh", "--quiet", "--eval", "db.adminCommand('ping').ok"]
+      interval: 10s
+      timeout: 5s
+      retries: 10
+
+volumes:
+  postgres_data:
+  mongo_data:

package.json

@@ -0,0 +1,84 @@
+{
+  "name": "reader-api",
+  "version": "0.1.0",
+  "private": true,
+  "scripts": {
+    "dev": "next dev -p 3001",
+    "build": "next build",
+    "start": "next start -p 3001",
+    "lint": "eslint ."
+  },
+  "dependencies": {
+    "@auth/prisma-adapter": "^2.11.1",
+    "@aws-sdk/client-s3": "^3.1006.0",
+    "@hookform/resolvers": "^3.9.1",
+    "@prisma/client": "^5.22.0",
+    "@radix-ui/react-accordion": "1.2.12",
+    "@radix-ui/react-alert-dialog": "1.1.15",
+    "@radix-ui/react-aspect-ratio": "1.1.8",
+    "@radix-ui/react-avatar": "1.1.11",
+    "@radix-ui/react-checkbox": "1.3.3",
+    "@radix-ui/react-collapsible": "1.1.12",
+    "@radix-ui/react-context-menu": "2.2.16",
+    "@radix-ui/react-dialog": "1.1.15",
+    "@radix-ui/react-dropdown-menu": "2.1.16",
+    "@radix-ui/react-hover-card": "1.1.15",
+    "@radix-ui/react-label": "2.1.8",
+    "@radix-ui/react-menubar": "1.1.16",
+    "@radix-ui/react-navigation-menu": "1.2.14",
+    "@radix-ui/react-popover": "1.1.15",
+    "@radix-ui/react-progress": "1.1.8",
+    "@radix-ui/react-radio-group": "1.3.8",
+    "@radix-ui/react-scroll-area": "1.2.10",
+    "@radix-ui/react-select": "2.2.6",
+    "@radix-ui/react-separator": "1.1.8",
+    "@radix-ui/react-slider": "1.3.6",
+    "@radix-ui/react-slot": "1.2.4",
+    "@radix-ui/react-switch": "1.2.6",
+    "@radix-ui/react-tabs": "1.1.13",
+    "@radix-ui/react-toast": "1.2.15",
+    "@radix-ui/react-toggle": "1.1.10",
+    "@radix-ui/react-toggle-group": "1.1.11",
+    "@radix-ui/react-tooltip": "1.2.8",
+    "@vercel/analytics": "1.6.1",
+    "autoprefixer": "^10.4.20",
+    "class-variance-authority": "^0.7.1",
+    "clsx": "^2.1.1",
+    "cmdk": "1.1.1",
+    "date-fns": "4.1.0",
+    "embla-carousel-react": "8.6.0",
+    "epub2": "^3.0.2",
+    "html-to-text": "^9.0.5",
+    "input-otp": "1.4.2",
+    "lucide-react": "^0.564.0",
+    "mammoth": "^1.11.0",
+    "mongoose": "^9.2.4",
+    "next": "16.1.6",
+    "next-auth": "^4.24.13",
+    "next-themes": "^0.4.6",
+    "prisma": "^5.22.0",
+    "react": "19.2.4",
+    "react-day-picker": "9.13.2",
+    "react-dom": "19.2.4",
+    "react-hook-form": "^7.54.1",
+    "react-resizable-panels": "^2.1.7",
+    "recharts": "2.15.0",
+    "sonner": "^1.7.1",
+    "tailwind-merge": "^3.3.1",
+    "vaul": "^1.1.2",
+    "zod": "^3.24.1"
+  },
+  "devDependencies": {
+    "@tailwindcss/postcss": "^4.2.0",
+    "@types/html-to-text": "^9.0.4",
+    "@types/node": "^22",
+    "@types/react": "19.2.14",
+    "@types/react-dom": "19.2.3",
+    "dotenv": "^17.3.1",
+    "pg": "^8.20.0",
+    "postcss": "^8.5",
+    "tailwindcss": "^4.2.0",
+    "tw-animate-css": "1.3.3",
+    "typescript": "5.7.3"
+  }
+}

pyproject.toml

@@ -0,0 +1,39 @@
+[project]
+name = "reader-api"
+version = "0.1.0"
+description = "Shared backend API for reader web and reader-app mobile clients"
+readme = "README.md"
+requires-python = ">=3.11"
+dependencies = [
+  "fastapi>=0.116.1",
+  "uvicorn[standard]>=0.35.0",
+  "sqlalchemy[asyncio]>=2.0.43",
+  "greenlet>=3.0.0",
+  "asyncpg>=0.30.0",
+  "motor>=3.7.1",
+  "python-jose[cryptography]>=3.5.0",
+  "google-auth>=2.40.3",
+  "requests>=2.32.5",
+  "pydantic-settings>=2.10.1",
+  # mod routes deps
+  "boto3>=1.35.0",
+  "httpx>=0.27.0",
+  "ebooklib>=0.18",
+  "html2text>=2024.2.26",
+  "python-slugify>=8.0.4",
+  "python-multipart>=0.0.9",
+]
+
+[dependency-groups]
+dev = [
+  "ruff>=0.12.11",
+]
+
+[tool.ruff]
+line-length = 100
+
+[tool.ruff.lint]
+select = ["E", "F", "I"]
+
+[tool.uv]
+package = false