first commit

app/Http/Controllers/Auth/SocialAuthController.php

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+<?php
+
+namespace App\Http\Controllers\Auth;
+
+use App\Http\Controllers\Controller;
+use App\Models\User;
+use App\Models\SocialAccount;
+use Exception;
+use Illuminate\Support\Facades\Auth;
+use Laravel\Socialite\Facades\Socialite;
+use Illuminate\Support\Str;
+
+class SocialAuthController extends Controller
+{
+    /**
+     * Redirect to the provider's authentication page.
+     */
+    public function redirectToProvider($provider)
+    {
+        return Socialite::driver($provider)->redirect();
+    }
+
+    /**
+     * Obtain the user information from the provider.
+     */
+    public function handleProviderCallback($provider)
+    {
+        try {
+            $socialUser = Socialite::driver($provider)->user();
+        } catch (Exception $e) {
+            return redirect()->route('login')->with('error', 'Authentication failed.');
+        }
+
+        $user = $this->findOrCreateUser($socialUser, $provider);
+
+        Auth::login($user, true);
+
+        return redirect()->intended(route('dashboard'));
+    }
+
+    /**
+     * Find or create a user based on social account information.
+     */
+    protected function findOrCreateUser($socialUser, $provider)
+    {
+        $account = SocialAccount::where('provider', $provider)
+            ->where('provider_id', $socialUser->getId())
+            ->first();
+
+        if ($account) {
+            // Update tokens
+            $account->update([
+                'token' => $socialUser->token,
+                'refresh_token' => $socialUser->refreshToken,
+                'expires_at' => $socialUser->expiresIn ? now()->addSeconds($socialUser->expiresIn) : null,
+            ]);
+            
+            return $account->user;
+        }
+
+        // Check if user with same email exists
+        $user = User::where('email', $socialUser->getEmail())->first();
+
+        if (!$user) {
+            // Create a new user
+            $user = User::create([
+                'name' => $socialUser->getName() ?? $socialUser->getNickname() ?? 'User',
+                'email' => $socialUser->getEmail(),
+                'avatar_url' => $socialUser->getAvatar(),
+                'password' => null, // Social users don't need a local password initially
+            ]);
+            
+            // Assign default role
+            $user->assignRole('student');
+        }
+
+        // Link social account
+        SocialAccount::create([
+            'user_id' => $user->id,
+            'provider' => $provider,
+            'provider_id' => $socialUser->getId(),
+            'token' => $socialUser->token,
+            'refresh_token' => $socialUser->refreshToken,
+            'expires_at' => $socialUser->expiresIn ? now()->addSeconds($socialUser->expiresIn) : null,
+        ]);
+
+        return $user;
+    }
+}