# LinguaForge MVP 開發環境設置指南

## 快速開始檢查清單

- [ ] 安裝 Flutter SDK 3.16.0+
- [ ] 安裝 VS Code + Flutter 擴充套件
- [ ] 設置 iOS 開發環境 (Xcode)
- [ ] 設置 Android 開發環境 (Android Studio)
- [ ] 申請 Gemini API Key
- [ ] 註冊 Supabase 帳號
- [ ] 設置 Firebase 專案
- [ ] 初始化 Git repository

## 1. Flutter 環境設置

### 1.1 安裝 Flutter SDK

```bash
# macOS 安裝
brew install flutter

# 或手動下載
git clone https://github.com/flutter/flutter.git
export PATH="$PATH:`pwd`/flutter/bin"

# 檢查安裝
flutter doctor
```

### 1.2 解決 Flutter Doctor 問題

```bash
# 常見問題解決
flutter doctor --android-licenses  # 接受 Android 授權
sudo xcode-select --switch /Applications/Xcode.app/Contents/Developer  # Xcode 路徑
sudo xcodebuild -runFirstLaunch  # Xcode 初始化
```

### 1.3 VS Code 設置

```bash
# 安裝必要擴充套件
code --install-extension Dart-Code.flutter
code --install-extension Dart-Code.dart-code
code --install-extension usernamehw.errorlens
code --install-extension esbenp.prettier-vscode
```

## 2. 專案初始化

### 2.1 建立 Flutter 專案

```bash
# 建立專案
flutter create --org com.linguaforge --project-name linguaforge_app linguaforge

cd linguaforge

# 確認可運行
flutter run
```

### 2.2 專案結構設置

```bash
# 建立資料夾結構
mkdir -p lib/{config,core,data,domain,presentation,l10n}
mkdir -p lib/core/{errors,utils,extensions,algorithms}
mkdir -p lib/data/{models,repositories,services}
mkdir -p lib/domain/{entities,usecases}
mkdir -p lib/presentation/{providers,screens,widgets}
mkdir -p lib/presentation/screens/{auth,home,cards,review,profile}
mkdir -p lib/presentation/widgets/{common,cards}
mkdir -p assets/{images,animations,fonts}
mkdir -p test/{unit,widget,integration}
```

### 2.3 安裝核心套件

```yaml
# pubspec.yaml
name: linguaforge_app
description: AI-powered vocabulary learning app
version: 0.1.0+1

environment:
  sdk: ">=3.2.0 <4.0.0"

dependencies:
  flutter:
    sdk: flutter

  # 狀態管理
  provider: ^6.1.0

  # 網路請求
  dio: ^5.4.0
  dio_retry: ^4.1.0

  # 本地存儲
  hive: ^2.2.3
  hive_flutter: ^1.1.0
  shared_preferences: ^2.2.2

  # Firebase
  firebase_core: ^2.24.0
  firebase_auth: ^4.15.0
  firebase_crashlytics: ^3.4.0
  firebase_performance: ^0.9.3
  firebase_analytics: ^10.7.0

  # Supabase
  supabase_flutter: ^2.0.0

  # UI 組件
  flutter_screenutil: ^5.9.0
  shimmer: ^3.0.0
  lottie: ^2.7.0
  cached_network_image: ^3.3.0

  # 工具
  intl: ^0.18.0
  uuid: ^4.2.0
  connectivity_plus: ^5.0.0
  flutter_dotenv: ^5.1.0
  path_provider: ^2.1.0

dev_dependencies:
  flutter_test:
    sdk: flutter
  flutter_lints: ^3.0.0
  build_runner: ^2.4.0
  hive_generator: ^2.0.0
  mockito: ^5.4.0

flutter:
  uses-material-design: true

  assets:
    - assets/images/
    - assets/animations/
    - .env

  fonts:
    - family: NotoSansTC
      fonts:
        - asset: assets/fonts/NotoSansTC-Regular.ttf
        - asset: assets/fonts/NotoSansTC-Medium.ttf
          weight: 500
        - asset: assets/fonts/NotoSansTC-Bold.ttf
          weight: 700
```

安裝套件：
```bash
flutter pub get
```

## 3. 外部服務設置

### 3.1 Gemini API 設置

1. 前往 [Google AI Studio](https://makersuite.google.com/app/apikey)
2. 點擊「Get API Key」
3. 建立新專案或選擇現有專案
4. 複製 API Key

```bash
# .env 檔案
GEMINI_API_KEY=AIzaSy...your_key_here
```

測試 API：
```bash
curl -X POST "https://generativelanguage.googleapis.com/v1beta/models/gemini-pro:generateContent?key=${GEMINI_API_KEY}" \
  -H "Content-Type: application/json" \
  -d '{
    "contents": [{
      "parts": [{
        "text": "Hello, Gemini!"
      }]
    }]
  }'
```

### 3.2 Supabase 設置

1. 前往 [Supabase](https://supabase.com)
2. 建立新專案
3. 設定資料庫

```sql
-- 建立 users 表
CREATE TABLE users (
  id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
  email VARCHAR(255) UNIQUE NOT NULL,
  nickname VARCHAR(50),
  created_at TIMESTAMP DEFAULT NOW(),
  preferences JSONB DEFAULT '{}'
);

-- 建立 cards 表
CREATE TABLE cards (
  id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
  user_id UUID REFERENCES users(id) ON DELETE CASCADE,
  word VARCHAR(100) NOT NULL,
  pronunciation VARCHAR(100),
  definition TEXT NOT NULL,
  part_of_speech VARCHAR(20),
  examples JSONB DEFAULT '[]',
  source_sentence TEXT,
  difficulty VARCHAR(20),
  created_at TIMESTAMP DEFAULT NOW(),
  next_review_date TIMESTAMP DEFAULT NOW(),
  easiness_factor DECIMAL(3,2) DEFAULT 2.5,
  interval_days INTEGER DEFAULT 0,
  repetition_count INTEGER DEFAULT 0
);

-- 建立索引
CREATE INDEX idx_cards_user_review ON cards(user_id, next_review_date);

-- 建立 review_logs 表
CREATE TABLE review_logs (
  id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
  card_id UUID REFERENCES cards(id) ON DELETE CASCADE,
  user_id UUID REFERENCES users(id) ON DELETE CASCADE,
  quality INTEGER CHECK (quality BETWEEN 1 AND 5),
  reviewed_at TIMESTAMP DEFAULT NOW(),
  time_spent INTEGER
);

-- Row Level Security
ALTER TABLE cards ENABLE ROW LEVEL SECURITY;
ALTER TABLE review_logs ENABLE ROW LEVEL SECURITY;

-- Policies
CREATE POLICY "Users can only see their own cards"
  ON cards FOR ALL
  USING (auth.uid() = user_id);

CREATE POLICY "Users can only see their own reviews"
  ON review_logs FOR ALL
  USING (auth.uid() = user_id);
```

4. 取得連線資訊

```bash
# .env 檔案
SUPABASE_URL=https://xxxxx.supabase.co
SUPABASE_ANON_KEY=eyJhbGc...
```

### 3.3 Firebase 設置

1. 前往 [Firebase Console](https://console.firebase.google.com)
2. 建立新專案
3. 啟用 Authentication

```bash
# 安裝 Firebase CLI
npm install -g firebase-tools

# 登入
firebase login

# 初始化
firebase init

# 選擇:
# - Authentication
# - Crashlytics
# - Performance Monitoring
# - Analytics
```

4. 下載設定檔

iOS: `GoogleService-Info.plist` → `ios/Runner/`
Android: `google-services.json` → `android/app/`

5. 設定 iOS

```ruby
# ios/Podfile
platform :ios, '12.0'

# 在 target 'Runner' do 後加入
pod 'Firebase/Analytics'
pod 'Firebase/Auth'
pod 'Firebase/Crashlytics'
pod 'Firebase/Performance'
```

```bash
cd ios && pod install
```

6. 設定 Android

```gradle
// android/build.gradle
buildscript {
    dependencies {
        classpath 'com.google.gms:google-services:4.4.0'
        classpath 'com.google.firebase:firebase-crashlytics-gradle:2.9.9'
        classpath 'com.google.firebase:perf-plugin:1.4.2'
    }
}

// android/app/build.gradle
apply plugin: 'com.google.gms.google-services'
apply plugin: 'com.google.firebase.crashlytics'
apply plugin: 'com.google.firebase.firebase-perf'

android {
    defaultConfig {
        minSdkVersion 21
        multiDexEnabled true
    }
}

dependencies {
    implementation 'com.google.firebase:firebase-analytics'
    implementation 'androidx.multidex:multidex:2.0.1'
}
```

## 4. 開發環境配置

### 4.1 Git 設置

```bash
# 初始化 Git
git init

# 設定 .gitignore
cat > .gitignore << EOF
# Flutter
.dart_tool/
.packages
.pub/
build/
.flutter-plugins
.flutter-plugins-dependencies

# iOS
ios/Pods/
ios/.symlinks/
ios/Flutter/Flutter.framework
ios/Flutter/Flutter.podspec

# Android
android/.gradle/
android/captures/
android/local.properties
*.jks
*.keystore

# Environment
.env
.env.*

# IDE
.idea/
.vscode/
*.iml

# macOS
.DS_Store

# Test
coverage/
EOF

# 第一次提交
git add .
git commit -m "Initial commit: Flutter project setup"
```

### 4.2 VS Code 專案設定

```json
// .vscode/launch.json
{
  "version": "0.2.0",
  "configurations": [
    {
      "name": "linguaforge (debug)",
      "request": "launch",
      "type": "dart",
      "program": "lib/main.dart",
      "args": ["--dart-define=ENV=development"]
    },
    {
      "name": "linguaforge (profile)",
      "request": "launch",
      "type": "dart",
      "flutterMode": "profile",
      "program": "lib/main.dart"
    },
    {
      "name": "linguaforge (release)",
      "request": "launch",
      "type": "dart",
      "flutterMode": "release",
      "program": "lib/main.dart",
      "args": ["--dart-define=ENV=production"]
    }
  ]
}
```

```json
// .vscode/settings.json
{
  "dart.flutterSdkPath": "/opt/homebrew/bin/flutter",
  "editor.formatOnSave": true,
  "editor.codeActionsOnSave": {
    "source.fixAll": true,
    "source.organizeImports": true
  },
  "files.exclude": {
    "**/.dart_tool": true,
    "**/.idea": true,
    "**/android/.gradle": true,
    "**/ios/Pods": true
  }
}
```

### 4.3 環境變數設置

```bash
# 建立 .env 檔案
cat > .env << EOF
# API Keys
GEMINI_API_KEY=your_gemini_api_key_here

# Supabase
SUPABASE_URL=https://xxxxx.supabase.co
SUPABASE_ANON_KEY=your_anon_key_here

# Environment
ENV=development
EOF

# 建立範例檔案
cp .env .env.example
# 移除敏感資訊
sed -i '' 's/=.*/=your_value_here/g' .env.example
```

## 5. 開發工具設置

### 5.1 Postman 設置

建立以下集合測試 API：

```json
{
  "info": {
    "name": "LinguaForge API",
    "schema": "https://schema.getpostman.com/json/collection/v2.1.0/collection.json"
  },
  "item": [
    {
      "name": "Gemini API Test",
      "request": {
        "method": "POST",
        "header": [
          {
            "key": "Content-Type",
            "value": "application/json"
          }
        ],
        "body": {
          "mode": "raw",
          "raw": "{\n  \"contents\": [{\n    \"parts\": [{\n      \"text\": \"Generate a vocabulary card for the word 'abandon'\"\n    }]\n  }]\n}"
        },
        "url": {
          "raw": "https://generativelanguage.googleapis.com/v1beta/models/gemini-pro:generateContent?key={{GEMINI_API_KEY}}"
        }
      }
    }
  ]
}
```

### 5.2 測試資料準備

```dart
// test/fixtures/test_data.dart
class TestData {
  static const testSentences = [
    "I need to abandon this bad habit immediately.",
    "She managed to achieve her goals through hard work.",
    "The ancient ruins were discovered by archaeologists.",
    "He demonstrated excellent leadership skills.",
    "The experiment yielded unexpected results.",
  ];

  static const testWords = [
    "abandon",
    "achieve",
    "ancient",
    "demonstrate",
    "experiment",
  ];

  static final testCard = CardModel(
    id: 'test-id',
    word: 'abandon',
    pronunciation: '/əˈbændən/',
    definition: '放棄、遺棄',
    partOfSpeech: 'verb',
    examples: [
      Example(
        english: 'He abandoned his car in the snow.',
        chinese: '他把車遺棄在雪地裡。',
      ),
    ],
    sourceSentence: 'I need to abandon this bad habit.',
    difficulty: 'intermediate',
    createdAt: DateTime.now(),
    nextReviewDate: DateTime.now().add(Duration(days: 1)),
    easinessFactor: 2.5,
    intervalDays: 1,
    repetitionCount: 0,
  );
}
```

## 6. 第一個功能測試

### 6.1 建立簡單測試頁面

```dart
// lib/main.dart
import 'package:flutter/material.dart';
import 'package:flutter_dotenv/flutter_dotenv.dart';
import 'package:firebase_core/firebase_core.dart';
import 'package:supabase_flutter/supabase_flutter.dart';

Future<void> main() async {
  WidgetsFlutterBinding.ensureInitialized();

  // 載入環境變數
  await dotenv.load();

  // 初始化 Firebase
  await Firebase.initializeApp();

  // 初始化 Supabase
  await Supabase.initialize(
    url: dotenv.env['SUPABASE_URL']!,
    anonKey: dotenv.env['SUPABASE_ANON_KEY']!,
  );

  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'LinguaForge',
      theme: ThemeData(
        primarySwatch: Colors.indigo,
        useMaterial3: true,
      ),
      home: TestScreen(),
    );
  }
}

class TestScreen extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('LinguaForge MVP'),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            Text(
              '環境設置成功！',
              style: Theme.of(context).textTheme.headlineMedium,
            ),
            SizedBox(height: 20),
            ElevatedButton(
              onPressed: () {
                // 測試 Gemini API
                _testGeminiAPI();
              },
              child: Text('測試 Gemini API'),
            ),
          ],
        ),
      ),
    );
  }

  Future<void> _testGeminiAPI() async {
    // 實作 API 測試
    print('Testing Gemini API...');
  }
}
```

### 6.2 執行測試

```bash
# 執行 App
flutter run

# 執行測試
flutter test

# 檢查程式碼品質
flutter analyze

# 格式化程式碼
dart format .
```

## 7. 常見問題排除

### 7.1 iOS 建置問題

```bash
# CocoaPods 問題
cd ios
pod deintegrate
pod cache clean --all
pod install

# 證書問題
open ios/Runner.xcworkspace
# Xcode > Signing & Capabilities > 選擇 Team
```

### 7.2 Android 建置問題

```bash
# Gradle 問題
cd android
./gradlew clean
./gradlew build

# SDK 版本問題
# 修改 android/app/build.gradle
# minSdkVersion 21
# targetSdkVersion 33
```

### 7.3 套件衝突

```bash
# 清理快取
flutter clean
flutter pub cache clean
flutter pub get

# 更新套件
flutter pub upgrade --major-versions
```

## 8. 每日開發流程

### 8.1 開始工作

```bash
# 1. 更新程式碼
git pull origin main

# 2. 安裝相依套件
flutter pub get

# 3. 執行 App
flutter run

# 4. 開始開發
code .
```

### 8.2 提交程式碼

```bash
# 1. 檢查程式碼
flutter analyze
flutter test

# 2. 格式化
dart format .

# 3. 提交
git add .
git commit -m "feat: implement feature X"
git push origin feature/branch-name
```

## 9. 效能監控設置

### 9.1 開發階段監控

```dart
// 顯示效能覆蓋層
MaterialApp(
  showPerformanceOverlay: true, // 顯示 FPS
  checkerboardRasterCacheImages: true, // 檢查快取圖片
  checkerboardOffscreenLayers: true, // 檢查離屏圖層
)
```

### 9.2 Flutter Inspector

VS Code: `Cmd + Shift + P` > `Flutter: Open DevTools`

## 10. 準備就緒檢查清單

### 必要項目 ✅
- [ ] Flutter 環境運行正常 (`flutter doctor` 無錯誤)
- [ ] 可以在模擬器/實機運行基礎 App
- [ ] Gemini API Key 可正常使用
- [ ] Supabase 資料庫已建立
- [ ] Firebase 專案已設置
- [ ] Git repository 已初始化

### 可選項目 ⚠️
- [ ] Postman 已安裝並設置
- [ ] 實機測試環境就緒
- [ ] CI/CD 環境設置

## 下一步

環境設置完成後，參考以下文件開始開發：
1. `mvp-feature-spec.md` - 功能規格
2. `mvp-technical-spec.md` - 技術實作
3. `solo-mvp-master-plan.md` - 開發時程

**準備就緒？開始 Week 1 的開發吧！🚀**