index.php - master - ft_otaku/web

index.php
1 084 строки39 KB
ft_otaku
Update: index.php
28 июл 2026, 17:20
28 июл 2026, 17:20a5c32a0
<?php
// ====== КОНФИГУРАЦИЯ БАЗЫ ДАННЫХ ======
$host = 'localhost';
$user = 'root';
$pass = '';
$dbname = 'habit_tracker';

$conn = new mysqli($host, $user, $pass, $dbname);

if ($conn->connect_error) {
    $conn = new mysqli($host, $user, $pass);
    $conn->query("CREATE DATABASE IF NOT EXISTS $dbname");
    $conn->select_db($dbname);
    
    $conn->query("CREATE TABLE IF NOT EXISTS users (
        id INT AUTO_INCREMENT PRIMARY KEY,
        username VARCHAR(50) UNIQUE NOT NULL,
        password VARCHAR(255) NOT NULL,
        habit VARCHAR(100) DEFAULT NULL,
        streak INT DEFAULT 0,
        last_date DATE DEFAULT NULL,
        created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
    )");
    
    $conn->query("CREATE TABLE IF NOT EXISTS habit_marks (
        id INT AUTO_INCREMENT PRIMARY KEY,
        user_id INT NOT NULL,
        mark_date DATE NOT NULL,
        FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE,
        UNIQUE KEY unique_user_date (user_id, mark_date)
    )");
}

session_start();

if (isset($_GET['action'])) {
    header('Content-Type: application/json');
    $action = $_GET['action'];
    $data = json_decode(file_get_contents('php://input'), true);
    
    switch ($action) {
        case 'login':
            $username = $data['username'] ?? '';
            $password = $data['password'] ?? '';
            $result = $conn->query("SELECT * FROM users WHERE username = '$username'");
            $user = $result->fetch_assoc();
            if ($user && $password == $user['password']) {
                $_SESSION['user_id'] = $user['id'];
                unset($user['password']);
                echo json_encode(['success' => true, 'user' => $user]);
            } else {
                echo json_encode(['success' => false, 'error' => 'Неверный логин или пароль']);
            }
            exit;
            
        case 'register':
            $username = $data['username'] ?? '';
            $password = $data['password'] ?? '';
            $check = $conn->query("SELECT * FROM users WHERE username = '$username'");
            if ($check->num_rows > 0) {
                echo json_encode(['success' => false, 'error' => 'Пользователь уже существует']);
                exit;
            }
            $conn->query("INSERT INTO users (username, password) VALUES ('$username', '$password')");
            $id = $conn->insert_id;
            $_SESSION['user_id'] = $id;
            $user = $conn->query("SELECT * FROM users WHERE id = $id")->fetch_assoc();
            unset($user['password']);
            echo json_encode(['success' => true, 'user' => $user]);
            exit;
            
        case 'getUser':
            if (!isset($_SESSION['user_id'])) {
                echo json_encode(['success' => false]);
                exit;
            }
            $user = $conn->query("SELECT * FROM users WHERE id = " . $_SESSION['user_id'])->fetch_assoc();
            unset($user['password']);
            echo json_encode(['success' => true, 'user' => $user]);
            exit;
            
        case 'updateUser':
            $habit = $data['habit'] ?? '';
            $id = $_SESSION['user_id'];
            $conn->query("UPDATE users SET habit = '$habit', streak = 0, last_date = NULL WHERE id = $id");
            $conn->query("DELETE FROM habit_marks WHERE user_id = $id");
            $user = $conn->query("SELECT * FROM users WHERE id = $id")->fetch_assoc();
            unset($user['password']);
            echo json_encode(['success' => true, 'user' => $user]);
            exit;
            
        case 'markDay':
            $id = $_SESSION['user_id'];
            $today = date('Y-m-d');
            $user = $conn->query("SELECT * FROM users WHERE id = $id")->fetch_assoc();
            if ($user['streak'] >= 14) {
                echo json_encode(['success' => false, 'error' => 'Привычка уже завершена!']);
                exit;
            }
            $check = $conn->query("SELECT * FROM habit_marks WHERE user_id = $id AND mark_date = '$today'");
            if ($check->num_rows > 0) {
                echo json_encode(['success' => false, 'error' => 'Уже отмечено сегодня']);
                exit;
            }
            $conn->query("INSERT INTO habit_marks (user_id, mark_date) VALUES ($id, '$today')");
            $lastDate = $user['last_date'];
            $newStreak = 1;
            if ($lastDate) {
                $diff = (strtotime($today) - strtotime($lastDate)) / (60 * 60 * 24);
                if ($diff == 1) $newStreak = $user['streak'] + 1;
                elseif ($diff > 1) $newStreak = 1;
            }
            $conn->query("UPDATE users SET streak = $newStreak, last_date = '$today' WHERE id = $id");
            $user = $conn->query("SELECT * FROM users WHERE id = $id")->fetch_assoc();
            unset($user['password']);
            echo json_encode(['success' => true, 'user' => $user]);
            exit;
            
        case 'checkToday':
            $id = $_SESSION['user_id'];
            $today = date('Y-m-d');
            $check = $conn->query("SELECT * FROM habit_marks WHERE user_id = $id AND mark_date = '$today'");
            echo json_encode(['success' => true, 'marked' => $check->num_rows > 0]);
            exit;
            
        case 'logout':
            session_destroy();
            echo json_encode(['success' => true]);
            exit;
    }
}
?>
<!DOCTYPE html>
<html lang="ru">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Habit Killer — избавься от привычки за 14 дней</title>
    <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap" rel="stylesheet">
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Inter', -apple-system, sans-serif;
            min-height: 100vh;
            background: #0a0a0f;
            background-image: 
                radial-gradient(ellipse at 20% 50%, rgba(99, 102, 241, 0.08) 0%, transparent 60%),
                radial-gradient(ellipse at 80% 50%, rgba(168, 85, 247, 0.08) 0%, transparent 60%);
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 20px;
        }

        .page {
            display: none;
            width: 100%;
            max-width: 440px;
            animation: fadeIn 0.4s cubic-bezier(0.16, 1, 0.3, 1);
        }

        .page.active {
            display: block;
        }

        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px) scale(0.96); }
            to { opacity: 1; transform: translateY(0) scale(1); }
        }

        @keyframes slideUp {
            from { opacity: 0; transform: translateY(30px); }
            to { opacity: 1; transform: translateY(0); }
        }

        @keyframes pulse {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.05); }
        }

        @keyframes glow {
            0%, 100% { box-shadow: 0 0 20px rgba(99, 102, 241, 0.2); }
            50% { box-shadow: 0 0 40px rgba(99, 102, 241, 0.4); }
        }

        .glass {
            background: rgba(255, 255, 255, 0.04);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: 24px;
            padding: 2rem;
            box-shadow: 0 25px 60px rgba(0, 0, 0, 0.5);
        }

        h2 {
            font-size: 1.75rem;
            font-weight: 800;
            text-align: center;
            background: linear-gradient(135deg, #818cf8 0%, #a78bfa 50%, #c084fc 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 1.5rem;
            letter-spacing: -0.5px;
        }

        .subtitle {
            text-align: center;
            color: rgba(255, 255, 255, 0.4);
            font-size: 0.85rem;
            margin-top: -0.5rem;
            margin-bottom: 1.5rem;
            font-weight: 500;
            letter-spacing: 0.3px;
        }

        input {
            width: 100%;
            padding: 14px 18px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 14px;
            color: #fff;
            font-size: 1rem;
            font-family: 'Inter', sans-serif;
            transition: all 0.3s ease;
            margin: 6px 0;
        }

        input::placeholder {
            color: rgba(255, 255, 255, 0.25);
            font-weight: 400;
        }

        input:focus {
            outline: none;
            border-color: rgba(99, 102, 241, 0.5);
            background: rgba(255, 255, 255, 0.08);
            box-shadow: 0 0 30px rgba(99, 102, 241, 0.1);
        }

        select {
            width: 100%;
            padding: 14px 18px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 14px;
            color: #fff;
            font-size: 1rem;
            font-family: 'Inter', sans-serif;
            transition: all 0.3s ease;
            margin: 6px 0;
            appearance: none;
            cursor: pointer;
        }

        select option {
            background: #1a1a2e;
            color: #fff;
        }

        select:focus {
            outline: none;
            border-color: rgba(99, 102, 241, 0.5);
        }

        .btn {
            width: 100%;
            padding: 14px;
            border: none;
            border-radius: 14px;
            font-size: 1rem;
            font-weight: 700;
            font-family: 'Inter', sans-serif;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
            letter-spacing: 0.3px;
            position: relative;
            overflow: hidden;
        }

        .btn::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(255,255,255,0.1), transparent);
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .btn:hover::after {
            opacity: 1;
        }

        .btn:hover:not(:disabled) {
            transform: translateY(-2px);
        }

        .btn:active:not(:disabled) {
            transform: translateY(0) scale(0.98);
        }

        .btn-primary {
            background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
            color: #fff;
            box-shadow: 0 4px 20px rgba(99, 102, 241, 0.3);
        }

        .btn-primary:hover:not(:disabled) {
            box-shadow: 0 6px 30px rgba(99, 102, 241, 0.5);
            transform: translateY(-2px);
        }

        .btn-primary:disabled {
            opacity: 0.5;
            cursor: not-allowed;
            transform: none !important;
        }

        .btn-success {
            background: linear-gradient(135deg, #10b981 0%, #34d399 100%);
            color: #fff;
            box-shadow: 0 4px 20px rgba(16, 185, 129, 0.3);
        }

        .btn-success:hover:not(:disabled) {
            box-shadow: 0 6px 30px rgba(16, 185, 129, 0.5);
            transform: translateY(-2px);
        }

        .btn-warning {
            background: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%);
            color: #1a1a2e;
            box-shadow: 0 4px 20px rgba(245, 158, 11, 0.2);
        }

        .btn-warning:hover:not(:disabled) {
            box-shadow: 0 6px 30px rgba(245, 158, 11, 0.4);
            transform: translateY(-2px);
        }

        .btn-outline {
            background: transparent;
            color: rgba(255, 255, 255, 0.6);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.05);
            border-color: rgba(255, 255, 255, 0.2);
            color: #fff;
        }

        .btn-danger {
            background: rgba(239, 68, 68, 0.15);
            color: #f87171;
            border: 1px solid rgba(239, 68, 68, 0.2);
            width: auto;
            padding: 8px 18px;
            font-size: 0.85rem;
        }

        .btn-danger:hover {
            background: rgba(239, 68, 68, 0.25);
        }

        .btn-sm {
            width: auto;
            padding: 10px 20px;
            font-size: 0.85rem;
        }

        .btn-profile {
            background: rgba(139, 92, 246, 0.15);
            color: #a78bfa;
            border: 1px solid rgba(139, 92, 246, 0.2);
            width: auto;
            padding: 8px 18px;
            font-size: 0.85rem;
        }

        .btn-profile:hover {
            background: rgba(139, 92, 246, 0.25);
        }

        .link {
            text-align: center;
            margin-top: 1.2rem;
            color: rgba(255, 255, 255, 0.35);
            cursor: pointer;
            font-weight: 500;
            font-size: 0.9rem;
            transition: color 0.3s ease;
        }

        .link:hover {
            color: rgba(167, 139, 250, 0.8);
        }

        .error {
            color: #f87171;
            font-size: 0.85rem;
            text-align: center;
            min-height: 1.4rem;
            margin-top: 4px;
        }

        .message {
            text-align: center;
            margin-top: 1rem;
            padding: 12px 16px;
            border-radius: 12px;
            font-weight: 600;
            font-size: 0.9rem;
            animation: slideUp 0.3s ease;
        }

        .message.success {
            background: rgba(16, 185, 129, 0.15);
            color: #34d399;
            border: 1px solid rgba(16, 185, 129, 0.2);
        }

        .message.error {
            background: rgba(239, 68, 68, 0.15);
            color: #f87171;
            border: 1px solid rgba(239, 68, 68, 0.2);
        }

        .message.completed {
            background: rgba(245, 158, 11, 0.15);
            color: #fbbf24;
            border: 1px solid rgba(245, 158, 11, 0.2);
            animation: pulse 2s ease-in-out infinite;
        }

        .header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 10px;
            margin-bottom: 1.5rem;
            flex-wrap: wrap;
        }

        .header h2 {
            margin-bottom: 0;
            flex: 1;
            font-size: 1.5rem;
        }

        .header .btn {
            width: auto;
        }

        .habit-info {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: 16px;
            padding: 1.5rem;
            margin-bottom: 1.5rem;
            text-align: center;
        }

        .habit-info .label {
            color: rgba(255, 255, 255, 0.3);
            font-size: 0.75rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            font-weight: 600;
        }

        .habit-info .habit-name {
            color: #fff;
            font-size: 1.2rem;
            font-weight: 700;
            margin: 6px 0 12px 0;
        }

        .habit-info .streak-number {
            font-size: 3.5rem;
            font-weight: 900;
            background: linear-gradient(135deg, #818cf8 0%, #c084fc 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1;
        }

        .habit-info .streak-label {
            color: rgba(255, 255, 255, 0.3);
            font-size: 0.85rem;
            margin-top: 4px;
        }

        .habit-info .progress-bar {
            width: 100%;
            height: 4px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 2px;
            margin-top: 16px;
            overflow: hidden;
        }

        .habit-info .progress-fill {
            height: 100%;
            background: linear-gradient(90deg, #6366f1, #a78bfa);
            border-radius: 2px;
            transition: width 0.6s cubic-bezier(0.16, 1, 0.3, 1);
        }

        .profile-info {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: 16px;
            padding: 1.5rem;
            margin-bottom: 1.5rem;
        }

        .profile-info p {
            color: rgba(255, 255, 255, 0.7);
            margin: 10px 0;
            font-size: 0.95rem;
            display: flex;
            justify-content: space-between;
            padding: 4px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.03);
        }

        .profile-info p:last-child {
            border-bottom: none;
        }

        .profile-info p strong {
            color: rgba(255, 255, 255, 0.4);
            font-weight: 500;
        }

        .profile-info p span {
            color: #fff;
            font-weight: 600;
        }

        .modal {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.8);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            display: flex;
            justify-content: center;
            align-items: center;
            z-index: 1000;
            padding: 20px;
        }

        .modal.hidden {
            display: none;
        }

        .modal-content {
            background: rgba(26, 26, 46, 0.95);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: 24px;
            padding: 2rem;
            max-width: 480px;
            width: 100%;
            max-height: 90vh;
            overflow-y: auto;
            animation: slideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
        }

        .modal-content h3 {
            color: #fff;
            font-size: 1.4rem;
            font-weight: 700;
            text-align: center;
            margin-bottom: 4px;
        }

        .modal-content .modal-sub {
            color: rgba(255, 255, 255, 0.3);
            font-size: 0.85rem;
            text-align: center;
            margin-bottom: 1.2rem;
        }

        .category-tabs {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
            margin: 12px 0;
            justify-content: center;
        }

        .category-tabs .cat-btn {
            padding: 6px 16px;
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: 20px;
            background: rgba(255, 255, 255, 0.03);
            color: rgba(255, 255, 255, 0.4);
            font-size: 0.8rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            font-family: 'Inter', sans-serif;
        }

        .category-tabs .cat-btn:hover {
            background: rgba(255, 255, 255, 0.06);
            color: rgba(255, 255, 255, 0.7);
        }

        .category-tabs .cat-btn.active {
            background: rgba(99, 102, 241, 0.2);
            border-color: rgba(99, 102, 241, 0.3);
            color: #a78bfa;
        }

        .habit-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 8px;
            margin: 12px 0;
        }

        .habit-item {
            padding: 10px 12px;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: 12px;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.85rem;
            cursor: pointer;
            transition: all 0.3s ease;
            text-align: center;
            font-weight: 500;
        }

        .habit-item:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
            transform: scale(1.02);
        }

        .habit-item.selected {
            background: rgba(99, 102, 241, 0.15);
            border-color: rgba(99, 102, 241, 0.3);
            color: #a78bfa;
            box-shadow: 0 0 20px rgba(99, 102, 241, 0.05);
        }

        .modal-content .btn {
            margin-top: 8px;
        }

        .custom-input {
            margin-top: 10px;
        }

        .footer-text {
            text-align: center;
            margin-top: 1rem;
            color: rgba(255, 255, 255, 0.12);
            font-size: 0.7rem;
            letter-spacing: 0.5px;
            font-weight: 500;
        }

        /* Scrollbar */
        ::-webkit-scrollbar {
            width: 4px;
        }

        ::-webkit-scrollbar-track {
            background: transparent;
        }

        ::-webkit-scrollbar-thumb {
            background: rgba(99, 102, 241, 0.3);
            border-radius: 2px;
        }

        @media (max-width: 480px) {
            .glass { padding: 1.5rem; }
            .habit-grid { grid-template-columns: 1fr 1fr; }
            .header { flex-direction: column; align-items: stretch; }
            .header .btn { width: 100%; }
            .habit-info .streak-number { font-size: 2.8rem; }
        }
    </style>
</head>
<body>
    <div id="app">
        <!-- Вход -->
        <div id="loginPage" class="page active">
            <div class="glass">
                <h2>✦ Habit Killer</h2>
                <div class="subtitle">Избавься от привычки за 14 дней</div>
                <input type="text" id="loginUsername" placeholder="Имя пользователя">
                <input type="password" id="loginPassword" placeholder="Пароль">
                <div id="loginError" class="error"></div>
                <button class="btn btn-primary" onclick="login()">Войти</button>
                <div class="link" onclick="showPage('registerPage')">Нет аккаунта? Создать</div>
            </div>
        </div>

        <!-- Регистрация -->
        <div id="registerPage" class="page">
            <div class="glass">
                <h2>✦ Создать аккаунт</h2>
                <div class="subtitle">Начни свой путь к свободе</div>
                <input type="text" id="regUsername" placeholder="Имя пользователя">
                <input type="password" id="regPassword" placeholder="Пароль (мин. 3 символа)">
                <div id="regError" class="error"></div>
                <button class="btn btn-primary" onclick="register()">Зарегистрироваться</button>
                <div class="link" onclick="showPage('loginPage')">Уже есть аккаунт? Войти</div>
            </div>
        </div>

        <!-- Главная -->
        <div id="mainPage" class="page">
            <div class="glass">
                <div class="header">
                    <h2>✦</h2>
                    <button class="btn btn-profile btn-sm" onclick="showProfile()">👤 Профиль</button>
                    <button class="btn btn-danger btn-sm" onclick="logout()">Выйти</button>
                </div>
                <div class="habit-info">
                    <div class="label">Привычка</div>
                    <div class="habit-name" id="habitDisplay">не выбрана</div>
                    <div class="streak-number" id="streakDisplay">0</div>
                    <div class="streak-label">дней подряд</div>
                    <div class="progress-bar">
                        <div class="progress-fill" id="progressFill" style="width: 0%;"></div>
                    </div>
                </div>
                <button class="btn btn-success" id="markDayBtn" onclick="markDay()">✅ Отметить сегодня</button>
                <button class="btn btn-warning" onclick="showHabitModal()" style="margin-top:8px;">🔄 Сменить привычку</button>
                <div id="mainMessage" class="message"></div>
                <div class="footer-text">14 дней — и привычка побеждена</div>
            </div>
        </div>

        <!-- Профиль -->
        <div id="profilePage" class="page">
            <div class="glass">
                <h2>✦ Профиль</h2>
                <div class="profile-info">
                    <p><strong>Имя</strong> <span id="profileUsername"></span></p>
                    <p><strong>Привычка</strong> <span id="profileHabit"></span></p>
                    <p><strong>Дней подряд</strong> <span id="profileStreak"></span></p>
                    <p><strong>Регистрация</strong> <span id="profileCreated"></span></p>
                    <p><strong>Статус</strong> <span id="profileStatus"></span></p>
                </div>
                <button class="btn btn-outline" onclick="showPage('mainPage')">← На главную</button>
            </div>
        </div>
    </div>

    <!-- Модалка -->
    <div id="habitModal" class="modal hidden">
        <div class="modal-content">
            <h3>🎯 Выбери привычку</h3>
            <div class="modal-sub">Или напиши свою</div>
            
            <div class="category-tabs" id="categoryTabs"></div>
            
            <div class="habit-grid" id="habitList"></div>
            
            <input type="text" id="customHabit" placeholder="✏️ Своя привычка..." class="custom-input">
            
            <button class="btn btn-primary" onclick="saveHabit()">💾 Сохранить</button>
            <button class="btn btn-outline" onclick="hideModal()">Отмена</button>
        </div>
    </div>

    <script>
        const habitsByCategory = {
            '🚬 Вредные': [
                'Курение', 'Вейпинг', 'Алкоголь', 'Энергетики', 'Кофеин (более 3 чашек)',
                'Сладкое', 'Фастфуд', 'Солёные снеки', 'Переедание', 'Еда ночью'
            ],
            '📱 Цифровые': [
                'Соцсети (зависание)', 'TikTok (более часа)', 'Instagram (более часа)',
                'YouTube (более 2ч)', 'Телефон перед сном', 'Мобильные игры',
                'Сериалы (запоем)', 'Интернет-шопинг', 'Бесполезный серфинг'
            ],
            '🧠 Психологические': [
                'Прокрастинация', 'Оправдания', 'Самокритика', 
                'Сравнение с другими', 'Сплетни', 'Грызть ногти',
                'Ковырять кожу', 'Откладывание дел', 'Страх нового'
            ],
            '💤 Здоровье': [
                'Поздний отбой (после 1ч)', 'Недосып (менее 6ч)',
                'Пропуск завтрака', 'Малоподвижность', 'Сутулость',
                'Долгое сидение', 'Отказ от воды', 'Плохая осанка'
            ],
            '💰 Финансовые': [
                'Импульсивные покупки', 'Траты на ерунду', 'Азартные игры',
                'Доставка еды', 'Спонтанные траты', 'Игнорирование бюджета'
            ]
        };

        const categoryNames = Object.keys(habitsByCategory);
        let selectedHabit = '';
        let currentCategory = categoryNames[0];
        let currentUser = null;
        let isTodayMarked = false;

        function renderCategories() {
            const container = document.getElementById('categoryTabs');
            container.innerHTML = categoryNames.map(cat => 
                `<button class="cat-btn ${cat === currentCategory ? 'active' : ''}" onclick="selectCategory('${cat}')">${cat}</button>`
            ).join('');
        }

        function selectCategory(cat) {
            currentCategory = cat;
            renderCategories();
            renderHabits();
        }

        function renderHabits() {
            const container = document.getElementById('habitList');
            const habits = habitsByCategory[currentCategory] || [];
            container.innerHTML = habits.map(h => 
                `<div class="habit-item ${selectedHabit === h ? 'selected' : ''}" onclick="selectHabit('${h}')">${h}</div>`
            ).join('');
        }

        function selectHabit(habit) {
            selectedHabit = habit;
            document.getElementById('customHabit').value = '';
            renderHabits();
        }

        document.addEventListener('DOMContentLoaded', function() {
            const customInput = document.getElementById('customHabit');
            if (customInput) {
                customInput.addEventListener('input', function() {
                    if (this.value.trim()) {
                        selectedHabit = this.value.trim();
                        renderHabits();
                        document.querySelectorAll('.habit-item').forEach(el => el.classList.remove('selected'));
                    }
                });
            }
        });

        function showPage(pageId) {
            document.querySelectorAll('.page').forEach(p => p.classList.remove('active'));
            document.getElementById(pageId).classList.add('active');
        }

        function showError(id, msg) {
            document.getElementById(id).textContent = msg;
        }

        function showMessage(msg, type = 'success') {
            const el = document.getElementById('mainMessage');
            el.textContent = msg;
            el.className = 'message ' + type;
            if (type === 'completed') {
                el.style.animation = 'pulse 2s ease-in-out infinite';
            }
        }

        async function api(action, data = null) {
            const options = {
                method: 'POST',
                headers: { 'Content-Type': 'application/json' }
            };
            if (data) options.body = JSON.stringify(data);
            const url = window.location.pathname + '?action=' + action;
            const response = await fetch(url, options);
            return await response.json();
        }

        async function login() {
            const username = document.getElementById('loginUsername').value.trim();
            const password = document.getElementById('loginPassword').value.trim();
            if (!username || !password) {
                showError('loginError', 'Заполните все поля');
                return;
            }
            const result = await api('login', { username, password });
            if (result.success) {
                currentUser = result.user;
                await checkToday();
                showPage('mainPage');
                updateUI();
                if (!currentUser.habit) showHabitModal();
            } else {
                showError('loginError', result.error);
            }
        }

        async function register() {
            const username = document.getElementById('regUsername').value.trim();
            const password = document.getElementById('regPassword').value.trim();
            if (!username || !password) {
                showError('regError', 'Заполните все поля');
                return;
            }
            if (password.length < 3) {
                showError('regError', 'Пароль минимум 3 символа');
                return;
            }
            const result = await api('register', { username, password });
            if (result.success) {
                currentUser = result.user;
                await checkToday();
                showPage('mainPage');
                updateUI();
                if (!currentUser.habit) showHabitModal();
            } else {
                showError('regError', result.error);
            }
        }

        async function logout() {
            await api('logout');
            currentUser = null;
            showPage('loginPage');
        }

        async function checkAuth() {
            const result = await api('getUser');
            if (result.success) {
                currentUser = result.user;
                await checkToday();
                showPage('mainPage');
                updateUI();
                if (!currentUser.habit) showHabitModal();
                if (currentUser.streak >= 14) {
                    showMessage('🏆 Поздравляем! Ты победил привычку! 🎉', 'completed');
                }
            }
        }

        async function checkToday() {
            const result = await api('checkToday');
            if (result.success) {
                isTodayMarked = result.marked;
                updateMarkButton();
            }
        }

        async function markDay() {
            if (isTodayMarked) {
                showMessage('Сегодня уже отмечено!', 'error');
                return;
            }
            if (currentUser && currentUser.streak >= 14) {
                showMessage('Привычка уже побеждена!', 'error');
                return;
            }
            const result = await api('markDay');
            if (result.success) {
                currentUser = result.user;
                isTodayMarked = true;
                updateUI();
                updateMarkButton();
                if (currentUser.streak >= 14) {
                    showMessage('🎉🏆 Ты сделал это! Привычка побеждена!', 'completed');
                } else {
                    showMessage(`✅ Отлично! Осталось ${14 - currentUser.streak} дней до победы!`, 'success');
                }
            } else {
                showMessage(result.error || 'Ошибка', 'error');
            }
        }

        async function saveHabit() {
            const customInput = document.getElementById('customHabit');
            let habit = selectedHabit;
            if (customInput && customInput.value.trim()) {
                habit = customInput.value.trim();
            }
            if (!habit) {
                showMessage('Выбери или введи привычку!', 'error');
                return;
            }
            const result = await api('updateUser', { habit });
            if (result.success) {
                currentUser = result.user;
                isTodayMarked = false;
                updateUI();
                hideModal();
                showMessage(`✅ Привычка "${habit}" сохранена! Начинай заново.`, 'success');
            }
        }

        function showHabitModal() {
            selectedHabit = currentUser?.habit || '';
            currentCategory = categoryNames[0];
            renderCategories();
            renderHabits();
            if (selectedHabit) {
                document.getElementById('customHabit').value = '';
            }
            document.getElementById('habitModal').classList.remove('hidden');
        }

        function hideModal() {
            document.getElementById('habitModal').classList.add('hidden');
        }

        function showProfile() {
            if (currentUser) {
                document.getElementById('profileUsername').textContent = currentUser.username;
                document.getElementById('profileHabit').textContent = currentUser.habit || 'не выбрана';
                document.getElementById('profileStreak').textContent = currentUser.streak || 0;
                document.getElementById('profileCreated').textContent = currentUser.created_at 
                    ? new Date(currentUser.created_at).toLocaleDateString('ru-RU') 
                    : 'неизвестно';
                const status = currentUser.streak >= 14 ? '✅ Победа!' : `⏳ ${currentUser.streak || 0}/14`;
                document.getElementById('profileStatus').textContent = status;
                showPage('profilePage');
            }
        }

        function updateUI() {
            if (!currentUser) return;
            document.getElementById('habitDisplay').textContent = currentUser.habit || 'не выбрана';
            document.getElementById('streakDisplay').textContent = currentUser.streak || 0;
            
            const progress = Math.min((currentUser.streak / 14) * 100, 100);
            document.getElementById('progressFill').style.width = progress + '%';
            
            const markBtn = document.getElementById('markDayBtn');
            if (currentUser.streak >= 14) {
                markBtn.disabled = true;
                markBtn.textContent = '🏆 Победа!';
                markBtn.style.opacity = '0.6';
            } else {
                updateMarkButton();
            }
        }

        function updateMarkButton() {
            const btn = document.getElementById('markDayBtn');
            if (currentUser && currentUser.streak >= 14) {
                btn.disabled = true;
                btn.textContent = '🏆 Победа!';
                btn.style.opacity = '0.6';
                return;
            }
            if (isTodayMarked) {
                btn.disabled = true;
                btn.textContent = '✅ Отмечено сегодня';
                btn.style.opacity = '0.6';
            } else {
                btn.disabled = false;
                btn.textContent = '✅ Отметить сегодня';
                btn.style.opacity = '1';
            }
        }

        // Закрытие модалки по клику вне
        document.getElementById('habitModal').addEventListener('click', function(e) {
            if (e.target === this) {
                // Не закрываем
            }
        });

        window.onload = function() {
            renderCategories();
            renderHabits();
            checkAuth();
        };
    </script>
</body>
</html>