# ✅ Avatar Artık Tüm Endpoint'lerde Dönüyor!

## 🎯 Sorun Çözüldü

Avatar field'ı login, register ve me endpoint'lerinde dönmüyordu. Şimdi **tüm authentication endpoint'lerinde** avatar döndürülüyor.

---

## 📋 Güncellenen Endpoint'ler

### 1. POST /v1/auth/register ✅

**Response (201):**
```json
{
  "message": "User created. Please verify your email.",
  "user_id": "uuid",
  "username": "john_doe",
  "email": "john@example.com",
  "avatar": "",
  "roles": [],
  "email_verified": false,
  "verification_token": "token123"
}
```

**Not:** Register'da OAuth olmadığı için avatar başlangıçta boş olacak. Daha sonra admin tarafından güncellenebilir.

---

### 2. POST /v1/auth/login ✅

**Response (200):**
```json
{
  "user_id": "uuid",
  "username": "john_doe",
  "email": "john@example.com",
  "avatar": "https://lh3.googleusercontent.com/a/...",
  "roles": [
    {
      "id": "role-uuid",
      "name": "user",
      "description": "Default user role"
    }
  ],
  "access_token": "eyJhbGci...",
  "refresh_token": "eyJhbGci..."
}
```

**Not:** Eğer kullanıcı daha önce OAuth ile giriş yaptıysa, avatar URL'si döner.

---

### 3. GET /v1/auth/me ✅

**Response (200):**
```json
{
  "id": "uuid",
  "username": "john_doe",
  "email": "john@example.com",
  "avatar": "https://lh3.googleusercontent.com/a/...",
  "email_verified": true,
  "created_at": "2026-02-04T00:00:00Z",
  "updated_at": "2026-02-04T00:00:00Z",
  "roles": [
    {
      "id": "role-uuid",
      "name": "user"
    }
  ],
  "social_accounts": [
    {
      "provider": "google",
      "name": "John Doe",
      "avatar_url": "https://lh3.googleusercontent.com/a/..."
    }
  ]
}
```

**Not:** Me endpoint'i zaten user objesini döndürüyordu, bu yüzden avatar otomatik olarak eklendi.

---

### 4. GET /v1/auth/:provider/callback ✅ YENİ!

**Response (200):**
```json
{
  "access_token": "eyJhbGci...",
  "refresh_token": "eyJhbGci...",
  "user": {
    "id": "uuid",
    "username": "John Doe",
    "email": "john@gmail.com",
    "avatar": "https://lh3.googleusercontent.com/a/...",
    "email_verified": true,
    "roles": [
      {
        "id": "role-uuid",
        "name": "user"
      }
    ],
    "social_accounts": [
      {
        "id": "social-uuid",
        "provider": "google",
        "provider_id": "1234567890",
        "email": "john@gmail.com",
        "name": "John Doe",
        "avatar_url": "https://lh3.googleusercontent.com/a/...",
        "created_at": "2026-02-04T00:00:00Z"
      }
    ]
  }
}
```

**Not:** OAuth callback artık user bilgilerini de döndürüyor, avatar dahil!

---

## 🔄 Değişiklikler

### 1. Auth Handler - Register
```go
c.JSON(http.StatusCreated, gin.H{
    "message":            "User created. Please verify your email.",
    "user_id":            user.ID,
    "username":           user.UserName,
    "email":              user.Email,
    "avatar":             user.Avatar, // ✅ Eklendi
    "roles":              roles,
    "email_verified":     false,
    "verification_token": verifyToken,
})
```

### 2. Auth Handler - Login
```go
c.JSON(http.StatusOK, gin.H{
    "user_id":       user.ID,
    "username":      user.UserName,
    "email":         user.Email,
    "avatar":        user.Avatar, // ✅ Eklendi
    "roles":         roles,
    "access_token":  accessToken,
    "refresh_token": refreshToken,
})
```

### 3. Auth Service - FindOrCreateSocialUser
```go
// Return type değişti
func FindOrCreateSocialUser(gothUser goth.User, provider string) (*models.User, string, string, error)

// User objesini de döndürüyor
return &user, accessToken, refreshToken, nil
```

### 4. Auth Handler - OAuth Callback
```go
c.JSON(http.StatusOK, gin.H{
    "access_token":  accessToken,
    "refresh_token": refreshToken,
    "user": gin.H{ // ✅ User bilgileri eklendi
        "id":              user.ID,
        "username":        user.UserName,
        "email":           user.Email,
        "avatar":          user.Avatar, // ✅ Avatar dahil
        "email_verified":  user.EmailVerified,
        "roles":           roles,
        "social_accounts": user.SocialAccounts,
    },
})
```

---

## 🧪 Test Senaryoları

### Test 1: Email/Password ile Register
```bash
curl -X POST http://localhost:8080/v1/auth/register \
  -H "Content-Type: application/json" \
  -d '{
    "username": "testuser",
    "email": "test@example.com",
    "password": "Test123!"
  }'
```

**Response:**
```json
{
  "message": "User created. Please verify your email.",
  "username": "testuser",
  "email": "test@example.com",
  "avatar": "",  // ✅ Boş string
  "email_verified": false
}
```

### Test 2: Email/Password ile Login
```bash
curl -X POST http://localhost:8080/v1/auth/login \
  -H "Content-Type: application/json" \
  -d '{
    "email": "test@example.com",
    "password": "Test123!"
  }'
```

**Response:**
```json
{
  "username": "testuser",
  "email": "test@example.com",
  "avatar": "",  // ✅ Eğer OAuth kullanmadıysa boş
  "access_token": "...",
  "refresh_token": "..."
}
```

### Test 3: Google OAuth ile Giriş
```bash
# 1. OAuth başlat
open http://localhost:8080/v1/auth/google

# 2. Google'da izin ver

# 3. Callback response
```

**Response:**
```json
{
  "access_token": "...",
  "refresh_token": "...",
  "user": {
    "username": "John Doe",
    "email": "john@gmail.com",
    "avatar": "https://lh3.googleusercontent.com/a/...",  // ✅ Google avatar
    "email_verified": true,
    "social_accounts": [
      {
        "provider": "google",
        "name": "John Doe",
        "avatar_url": "https://lh3.googleusercontent.com/a/..."
      }
    ]
  }
}
```

### Test 4: /me Endpoint
```bash
curl -X GET http://localhost:8080/v1/auth/me \
  -H "Authorization: Bearer YOUR_TOKEN"
```

**Response:**
```json
{
  "id": "uuid",
  "username": "John Doe",
  "email": "john@gmail.com",
  "avatar": "https://lh3.googleusercontent.com/a/...",  // ✅ Avatar var
  "email_verified": true
}
```

---

## 💻 Frontend Kullanımı

### Login Sonrası
```javascript
async function login(email, password) {
  const response = await fetch('http://localhost:8080/v1/auth/login', {
    method: 'POST',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ email, password })
  });
  
  const data = await response.json();
  
  // Avatar artık login response'unda!
  console.log('Avatar:', data.avatar);
  
  // Token'ları sakla
  localStorage.setItem('access_token', data.access_token);
  localStorage.setItem('refresh_token', data.refresh_token);
  
  // User bilgilerini sakla
  localStorage.setItem('user', JSON.stringify({
    id: data.user_id,
    username: data.username,
    email: data.email,
    avatar: data.avatar  // ✅ Avatar
  }));
  
  return data;
}
```

### OAuth Callback Sonrası
```javascript
// OAuth callback sayfasında
async function handleOAuthCallback() {
  // URL'den token ve user bilgilerini al
  const urlParams = new URLSearchParams(window.location.search);
  
  // veya callback API'sinden direkt response gelir
  const response = await fetch(callbackUrl);
  const data = await response.json();
  
  // Avatar ve tüm user bilgileri var!
  console.log('User:', data.user);
  console.log('Avatar:', data.user.avatar);
  console.log('Social Accounts:', data.user.social_accounts);
  
  // Token'ları sakla
  localStorage.setItem('access_token', data.access_token);
  localStorage.setItem('user', JSON.stringify(data.user));
  
  // Ana sayfaya yönlendir
  window.location.href = '/dashboard';
}
```

### Me Endpoint ile Avatar Göster
```javascript
async function getCurrentUser() {
  const token = localStorage.getItem('access_token');
  
  const response = await fetch('http://localhost:8080/v1/auth/me', {
    headers: { 'Authorization': `Bearer ${token}` }
  });
  
  const user = await response.json();
  
  // Avatar göster
  const avatarEl = document.querySelector('#user-avatar');
  avatarEl.src = user.avatar || `https://ui-avatars.com/api/?name=${user.username}`;
  
  return user;
}
```

### React Component
```jsx
function UserProfile() {
  const [user, setUser] = useState(null);
  
  useEffect(() => {
    // Login sonrası user bilgileri localStorage'dan
    const userData = JSON.parse(localStorage.getItem('user'));
    setUser(userData);
  }, []);
  
  if (!user) return null;
  
  return (
    <div className="flex items-center gap-2">
      <img 
        src={user.avatar || `https://ui-avatars.com/api/?name=${user.username}`}
        alt={user.username}
        className="w-10 h-10 rounded-full"
      />
      <span>{user.username}</span>
    </div>
  );
}
```

---

## 📊 Avatar Field Durumları

| Senaryo | Avatar Değeri |
|---------|---------------|
| Email/Password Register | `""` (boş string) |
| Email/Password Login (OAuth yok) | `""` (boş string) |
| Google OAuth ile giriş | `https://lh3.googleusercontent.com/a/...` |
| GitHub OAuth ile giriş | `https://avatars.githubusercontent.com/u/...` |
| Admin tarafından manuel set | Custom URL |
| Avatar hiç set edilmemişse | `null` veya `""` |

---

## ✅ Özet

### Güncellenen Endpoint'ler
1. ✅ **POST /v1/auth/register** - Avatar field eklendi
2. ✅ **POST /v1/auth/login** - Avatar field eklendi
3. ✅ **GET /v1/auth/me** - Avatar zaten vardı (model değişikliği ile)
4. ✅ **GET /v1/auth/:provider/callback** - User bilgileri ve avatar eklendi

### Değişiklikler
- ✅ `auth_handler.go` - Register response'a avatar eklendi
- ✅ `auth_handler.go` - Login response'a avatar eklendi
- ✅ `auth_handler.go` - OAuth callback'e user bilgileri eklendi
- ✅ `auth_service.go` - FindOrCreateSocialUser user döndürüyor

### Avatar Kaynakları
- ✅ Google OAuth → Google profil fotoğrafı
- ✅ GitHub OAuth → GitHub profil fotoğrafı
- ✅ Manuel upload → Custom URL (gelecekte)
- ✅ Fallback → UI Avatars API

### Build
```bash
✅ go build -o main .
✅ No errors
```

---

## 🚀 Hemen Test Edin

```bash
# 1. Uygulamayı başlat
./main

# 2. Register test
curl -X POST http://localhost:8080/v1/auth/register \
  -H "Content-Type: application/json" \
  -d '{"username":"test","email":"test@test.com","password":"Test123!"}'

# Response'da "avatar": "" göreceksiniz ✅

# 3. Login test
curl -X POST http://localhost:8080/v1/auth/login \
  -H "Content-Type: application/json" \
  -d '{"email":"test@test.com","password":"Test123!"}'

# Response'da "avatar": "" göreceksiniz ✅

# 4. Google OAuth test
open http://localhost:8080/v1/auth/google

# Callback'te avatar ve tüm user bilgileri olacak ✅
```

**Avatar artık tüm endpoint'lerde dönüyor! 🎉**
