/home/awneajlw/public_html/codestechvista.com/signin.php
<?php
/**
 * Sign In Page - User Authentication
 * This page handles user login with email and password
 * Features: Form validation, database authentication, session management
 * Redirects to home page on successful login
 */

// Start output buffering to prevent headers already sent error
ob_start();

// Start session if not already started
if (session_status() == PHP_SESSION_NONE) {
    session_start();
}

// Include required files
require_once 'config/database.php';  // Database connection configuration
require_once 'includes/auth.php';    // Authentication functions

/**
 * Login Form Submission Handler
 * Process POST request when login form is submitted
 * Validates user credentials and creates session
 */
if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['email']) && isset($_POST['password'])) {
    $email = trim($_POST['email']);
    $password = $_POST['password'];
    
    if (!empty($email) && !empty($password)) {
        try {
            $database = new Database();
            $db = $database->getConnection();
            
            // Allow login with email or username
            $query = "SELECT * FROM users WHERE email = ? OR name = ?";
            $stmt = $db->prepare($query);
            $stmt->execute([$email, $email]);
            $user = $stmt->fetch(PDO::FETCH_ASSOC);
            
            if ($user && password_verify($password, $user['password'])) {
                $_SESSION['user_id'] = $user['id'];
                $_SESSION['user_name'] = $user['name'];
                $_SESSION['user_email'] = $user['email'];
                $_SESSION['name'] = $user['name'];
                $_SESSION['email'] = $user['email'];
                $_SESSION['role'] = $user['role'];
                $_SESSION['logged_in'] = true;
                $_SESSION['last_activity'] = time();
                
                // Login successful - redirect to home.php
                header('Location: home.php');
                exit();
            } else {
                $login_error = 'Invalid email or password';
            }
        } catch (Exception $e) {
            $login_error = 'Login failed. Please try again.';
        }
    } else {
        $login_error = 'Please fill in all fields';
    }
}

// If already logged in, redirect to home
if (isLoggedIn()) {
    header('Location: home.php');
    exit();
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>SIGN IN - OPTI SLIP</title>
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css" rel="stylesheet">
    <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/css/all.min.css" rel="stylesheet">
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Inter', sans-serif;
            min-height: 100vh;
            background: #f8fafc;
            margin: 0;
            padding: 0;
        }
        
        .header {
            background: #374151;
            padding: 15px 30px;
            color: white;
            font-size: 18px;
            font-weight: 600;
            text-transform: uppercase;
        }
        
        .main-container {
            background: white;
            overflow: hidden;
            width: 100%;
            min-height: 100vh;
            display: flex;
            position: relative;
        }
        
        .left-section {
            flex: 1;
            background: #169D53;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 60px 40px;
            position: relative;
            clip-path: polygon(0 0, 100% 0, 65% 100%, 0% 100%);
            color: white;
        }
        
        .logo-container {
            text-align: center;
            margin-bottom: 40px;
        }
        
        .logo-icon {
            width: 120px;
            height: 120px;
            background: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            position: relative;
        }
        
        .glasses-container {
            display: flex;
            align-items: center;
            gap: 5px;
        }
        
        .glasses-lens {
            width: 35px;
            height: 35px;
            border: 3px solid #169D53;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 10px;
            color: #169D53;
            font-weight: bold;
        }
        
        .glasses-bridge {
            width: 8px;
            height: 3px;
            background: #169D53;
            border-radius: 2px;
        }
        
        .logo-image {
            /* width: 100%; */
            /* height: 100%; */
            width: 220px;
            height: auto;
            object-fit: contain;
            border-radius: 50%;
            display: block;
            /* background: red; Debugging - remove if working */
        }
        
        
        
        .description-text {
            color: white;
            font-size: 196x;
            /* line-height: 1.6; */
            text-align: center;
            max-width: 320px;
            opacity: 0.95;

        }
        
        .right-section {
            flex: 1;
            background: white;
            display: flex;
            flex-direction: column;
            justify-content: center;
            padding: 60px 50px;
            position: relative;
        }
        
        .welcome-text {
            font-size: 56px;
            font-weight: 700;
            color: #1f2937;
            margin-bottom: 50px;
            text-align: left;
        }
        
        .form-container {
            width: 100%;
            max-width: 400px;
        }
        
        .form-group {
            margin-bottom: 25px;
        }
        
        .form-label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: #374151;
            margin-bottom: 8px;
        }
        
        .form-input {
            width: 100%;
            padding: 18px 20px;
            border: 2px solid #e5e7eb;
            border-radius: 12px;
            font-size: 16px;
            transition: all 0.3s ease;
            background: white;
        }
        
        .form-input:focus {
            outline: none;
            border-color: #169D53;
            box-shadow: 0 0 0 3px rgba(22, 157, 83, 0.1);
        }
        
        .remember-section {
            display: flex;
            align-items: center;
            margin-bottom: 25px;
        }
        
        .remember-checkbox {
            width: 20px;
            height: 20px;
            margin-right: 12px;
            accent-color: #169D53;
        }
        
        .remember-label {
            font-size: 14px;
            color: #6b7280;
        }
        
        .signin-btn {
            width: 100%;
            padding: 18px 20px;
            background: #169D53;
            color: white;
            border: none;
            border-radius: 12px;
            font-size: 16px;
            font-weight: 600;
            text-transform: uppercase;
            cursor: pointer;
            transition: all 0.3s ease;
            margin-bottom: 30px;
            box-shadow: 0 4px 12px rgba(22, 157, 83, 0.3);
        }
        
        .signin-btn:hover {
            background: #138043;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(22, 157, 83, 0.4);
        }
        
        .divider {
            display: flex;
            align-items: center;
            margin: 25px 0;
            text-align: center;
        }
        
        .divider::before,
        .divider::after {
            content: '';
            flex: 1;
            height: 1px;
            background: #d1d5db;
        }
        
        .divider-text {
            padding: 0 20px;
            color: #6b7280;
            font-size: 14px;
            font-weight: 500;
        }
        
        .social-buttons {
            display: grid;
            /* grid-template-columns: 1fr 1fr; */
            /* gap: 15px; */
            margin-bottom: 25px;
        }
        
        .social-btn {
            padding: 15px 20px;
            border: 2px solid #e5e7eb;
            border-radius: 12px;
            background: white;
            cursor: pointer;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 19px;
            font-weight: 500;
            color: #374151;
            gap: 5px;
            white-space: nowrap;
        }
        
        .social-btn:hover {
            border-color: #9ca3af;
            background: #f9fafb;
        }
        
        .google-btn {
            background: #fff;
            border: 2px solid #dadce0;
            color: #3c4043;
        }
        
        .google-btn:hover {
            background: #f8f9fa;
            border-color: #dadce0;
            box-shadow: 0 1px 3px rgba(0,0,0,0.1);
        }
        
        .google-btn i {
            color: #ea4335;
            font-size: 18px;
        }
        
        .google-text {
            color: #ea4335;
            font-weight: 600;
        }
        
        .facebook-text {
            color: #1877f2;
            font-weight: 600;

        }
        
        .signup-link {
            text-align: center;
            color: #6b7280;
            font-size: 14px;
        }
        
        .signup-link a {
            color: #169D53;
            text-decoration: none;
            font-weight: 600;
        }
        
        .signup-link a:hover {
            text-decoration: underline;
        }
        
        .alert {
            padding: 12px 16px;
            border-radius: 8px;
            margin-bottom: 20px;
            text-align: center;
            background: #fef2f2;
            border: 1px solid #fecaca;
            color: #dc2626;
        }
        
        @media (max-width: 768px) {
            .main-container {
                flex-direction: column;
            }
            
            .left-section {
                clip-path: none;
                padding: 40px 20px;
            }
            
            .right-section {
                clip-path: none;
                padding: 40px 20px;
            }
            
            .welcome-text {
                font-size: 36px;
            }
            
            .logo-icon {
                width: 80px;
                height: 80px;
            }
            
            .logo-text {
                font-size: 20px;
            }
        }
        
        @media (max-width: 480px) {
            .social-buttons {
                grid-template-columns: 1fr;
            }
            
            .welcome-text {
                font-size: 28px;
            }
        }
        
        .remember-section {
    display: flex;
    justify-content: space-between; /* Left me checkbox, right me link */
    align-items: center;
    margin-bottom: 20px;
}

.remember-left {
    display: flex;
    align-items: center;
    gap: 8px; /* Checkbox aur label ke beech gap */
}

.remember-label {
    font-size: 14px;
    color: #6b7280;
    cursor: pointer;
}

.forgot-link a {
    font-size: 14px;
    color: #169D53;
    text-decoration: none;
    font-weight: 600;
}

.forgot-link a:hover {
    text-decoration: underline;
}

    </style>
</head>
<body>
    <!-- Header -->
    <!-- <div class="header">
        SIGN in
    </div> -->
    
    <!-- Main Container -->
    <div class="main-container">
            <!-- Left Section -->
            <div class="left-section">
                <div class="logo-container">
                <!-- <div class="logo-icon"> -->
                    <img src="assets/images/OptiSlip.png" alt="Opti Slip Logo" class="logo-image" onload="console.log('Image loaded!')" onerror="console.log('Image failed to load'); this.style.background='blue'; this.alt='IMAGE NOT FOUND';"">
                <!-- </div> -->
                <!-- <div class="logo-text">OPTI SLIP</div> -->

                
            </div>
            
            <div class="description-text">
                Lorem ipsum dolor sit amet consectetur. Hendrerit blandit justo tincidunt turpis vel donec. Nam ullamcorper neque volutpat tellus eget molestie in amet. Sodales eu ac aliquet erat risus. Quisque.
            </div>
            </div>
            
            <!-- Right Section -->
            <div class="right-section">
            <div class="welcome-text">welcome !</div>
            
            <div class="form-container">
                <?php if (isset($login_error)): ?>
                    <div class="alert">
                        <i class="fas fa-exclamation-triangle me-2"></i>
                        <?php echo htmlspecialchars($login_error); ?>
                    </div>
                <?php endif; ?>
                
                <form method="POST" action="signin.php">
                    <div class="form-group">
                        <label class="form-label">Email or Username</label>
                        <input type="text" name="email" class="form-input" placeholder="Enter your email or username" value="<?php echo isset($_POST['email']) ? htmlspecialchars($_POST['email']) : ''; ?>" required>
                    </div>
                    
                    <div class="form-group">
                        <label class="form-label">Password</label>
                        <input type="password" name="password" class="form-input" value="********" required>
                    </div>
                    
                    <div class="remember-section">
    <div class="remember-left">
        <input type="checkbox" class="remember-checkbox" id="remember">
        <label for="remember" class="remember-label">Remember me</label>
    </div>
    
    <div class="forgot-link">
        <a href="forgot_password.php">Forgot Password?</a>
    </div>
</div>

                    
                   
    
    

                    
                    <button type="submit" class="signin-btn">
                        SIGN IN
                    </button>
                </form>
                
                <div class="divider">
                    <span class="divider-text">OR</span>
                </div>
                
                <div class="social-buttons">
                    <button type="button" class="social-btn google-btn" onclick="signInWithGoogle()">
                        <i class="fab fa-google"></i>
                        <span>Continue with Google</span>
                    </button>
                    <!-- <button type="button" class="social-btn facebook-btn">
                        <span>Continue with</span>
                        <span class="facebook-text">Facebook</span>
                    </button> -->
                </div>
                
                <div class="signup-link">
                    Don't Have An Account ? <a href="register.php">Sign Up</a>
                </div>
            </div>
        </div>
    </div>
    
    <!-- Google API Script -->
    <script src="https://apis.google.com/js/api.js"></script>
    <script src="https://accounts.google.com/gsi/client" async defer></script>
    <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/js/bootstrap.bundle.min.js"></script>
    <script>
        // Google Sign-In Configuration
        const GOOGLE_CLIENT_ID = '73807454033-o7n4e623mhv335nonlm0r3n34mievdv7.apps.googleusercontent.com';
        
        // Initialize Google Sign-In
        function initializeGoogleSignIn() {
            gapi.load('auth2', function() {
                gapi.auth2.init({
                    client_id: GOOGLE_CLIENT_ID
                });
            });
        }
        
        // Google Sign-In Function
        function signInWithGoogle() {
            // Auto-detect environment for redirect URI
            const isLocal = window.location.hostname === 'localhost' || window.location.hostname === '127.0.0.1';
            const redirectUri = isLocal ? 
                'http://localhost/optical_slip/auth/google_callback.php' : 
                'https://optislip.com/auth/google_callback.php';
            
            const authUrl = 'https://accounts.google.com/o/oauth2/auth?' +
                'client_id=' + GOOGLE_CLIENT_ID +
                '&redirect_uri=' + encodeURIComponent(redirectUri) +
                '&scope=email profile' +
                '&response_type=code' +
                '&access_type=offline';
            
            // Redirect to Google OAuth
            window.location.href = authUrl;
        }
        
        // Initialize on page load
        window.onload = function() {
            initializeGoogleSignIn();
        };
        
        // Form validation
        document.querySelector('form').addEventListener('submit', function(e) {
            const email = document.querySelector('input[name="email"]').value;
            const password = document.querySelector('input[name="password"]').value;
            
            if (!email || !password) {
                e.preventDefault();
                alert('Please fill in all fields');
            }
        });
    </script>
</body>
</html>
<?php
// Clean up output buffer
ob_end_flush();
?>
Path: home/awneajlw/public_html/codestechvista.com