<?php

namespace App\Http\Controllers\Auth;

use App\Http\Controllers\Controller;
use App\Models\User;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Log;
use Illuminate\Support\Str;
use Laravel\Socialite\Facades\Socialite;

class GoogleAuthController extends Controller
{
    /**
     * Redirect to Google OAuth
     */
    public function redirect()
    {
        return Socialite::driver('google')->redirect();
    }

    /**
     * Handle Google OAuth callback
     */
    public function callback()
    {
        try {
            $googleUser = Socialite::driver('google')->user();

            // Find or create user
            $user = User::firstOrCreate(
                ['email' => $googleUser->getEmail()],
                [
                    'name' => $googleUser->getName(),
                    'google_id' => $googleUser->getId(),
                    'email_verified_at' => now(),
                    // Set a random password so the row passes DB constraints; not used for login
                    'password' => Str::random(32),
                ]
            );

            // Update Google ID if not already set
            if (!$user->google_id) {
                $user->update(['google_id' => $googleUser->getId()]);
            }

            Auth::login($user, remember: true);

            return redirect()->intended('/');
        } catch (\Exception $e) {
            Log::error('Google OAuth callback failed', [
                'error' => $e->getMessage(),
                'exception' => $e,
            ]);
            return redirect('/login')->with('error', 'Failed to authenticate with Google. Please try again.');
        }
    }

    /**
     * Logout user
     */
    public function logout()
    {
        Log::info('User logging out', [
            'user_id' => optional(Auth::user())->id,
            'email' => optional(Auth::user())->email,
        ]);
        Auth::logout();
        request()->session()->invalidate();
        request()->session()->regenerateToken();
        
        return redirect('/');
    }
}