---
import Layout from '@layouts/Layout.astro';
import { SITE_URL } from '@constants';
---

<Layout
	title="Вход в аккаунт"
	description="Войдите в свой аккаунт для доступа к личному кабинету"
	canonicalLink={`${SITE_URL}/auth/sign-in`}
>
    <div class="auth-page">
        <div class="auth-container">
            <div class="auth-card">
                <div class="auth-header">
                    <h1>Вход в аккаунт</h1>
                    <p>Введите свои данные для входа</p>
                </div>

                <form class="auth-form" id="sign-in-form">
                    <div class="form-group honeypot-field">
                        <input
                            type="text"
                            name="website_url"
                            id="website_url"
                            tabindex="-1"
                            autocomplete="off"
                            class="honeypot"
                        />
                    </div>

                    <div class="form-group">
                        <label for="email">Email</label>
                        <input 
                            type="email" 
                            id="email" 
                            name="email" 
                            placeholder="example@mail.ru"
                            required 
                            autocomplete="email"
                            inputmode="email"
                        />
                        <span class="error-message" id="email-error"></span>
                    </div>

                    <div class="form-group">
                        <label for="password">
                            Пароль
                            <span class="hint">От 8 до 12 символов</span>
                        </label>
                        <div class="password-wrapper">
                            <input 
                                type="password" 
                                id="password" 
                                name="password" 
                                placeholder="••••••••"
                                required 
                                autocomplete="current-password"
                                minlength="8"
                                maxlength="12"
                            />
                            <button type="button" class="toggle-password" data-target="password">
                                <svg class="eye-open" xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
                                    <path d="M1 12s4-8 11-8 11 8 11 8-4 8-11 8-11-8-11-8z"></path>
                                    <circle cx="12" cy="12" r="3"></circle>
                                </svg>
                                <svg class="eye-closed" xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
                                    <path d="M17.94 17.94A10.07 10.07 0 0 1 12 20c-7 0-11-8-11-8a18.45 18.45 0 0 1 5.06-5.94M9.9 4.24A9.12 9.12 0 0 1 12 4c7 0 11 8 11 8a18.5 18.5 0 0 1-2.16 3.19m-6.72-1.07a3 3 0 1 1-4.24-4.24"></path>
                                    <line x1="1" y1="1" x2="23" y2="23"></line>
                                </svg>
                            </button>
                        </div>
                        <span class="error-message" id="password-error"></span>
                    </div>

                    <div class="form-options">
                        <label class="checkbox-label">
                            <input type="checkbox" name="remember" />
                            <span>Запомнить меня</span>
                        </label>
                        <a href="/auth/forgot-password" class="forgot-link">Забыли пароль?</a>
                    </div>

                    <button type="submit" class="btn-submit">
                        Войти
                    </button>
                </form>

                <div class="auth-footer">
                    <p>Нет аккаунта? <a href="/auth/sign-up">Зарегистрироваться</a></p>
                </div>
            </div>
        </div>
    </div>
</Layout>

<style>
    /* Основная страница */
    .auth-page {
        min-height: calc(100vh - 160px);
        background: linear-gradient(135deg, #f5f7fa 0%, #e8ecf1 100%);
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 2rem;
    }

    .auth-container {
        width: 100%;
        max-width: 440px;
    }

    /* Карточка авторизации */
    .auth-card {
        background: #ffffff;
        border-radius: 16px;
        padding: 1.5rem 1.5rem;
        box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    }

    /* Заголовок */
    .auth-header {
        text-align: center;
        margin-bottom: 1rem;
    }

    .auth-header h1 {
        color: #1e3050;
        font-size: 1.5rem;
        font-weight: 800;
        margin: 0 0 0.5rem 0;
        letter-spacing: -0.02em;
    }

    .auth-header p {
        color: #64748b;
        font-size: 0.9rem;
        margin: 0;
    }

    /* Форма */
    .auth-form {
        display: flex;
        flex-direction: column;
        gap: 0.5rem;
    }

    .form-group {
        display: flex;
        flex-direction: column;
        gap: 0.2rem;
    }

    .form-group label {
        color: #1e3050;
        font-size: 0.8rem;
        font-weight: 600;
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .form-group label .hint {
        color: #94a3b8;
        font-size: 0.75rem;
        font-weight: 400;
    }

    .form-group input {
        padding: 0.6rem 0.75rem;
        border: 1px solid #e2e8f0;
        border-radius: 8px;
        font-size: 0.9rem;
        transition: all 0.2s ease;
        background: #f8fafc;
    }

    .form-group input:focus {
        outline: none;
        border-color: #d4af37;
        box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1);
        background: #ffffff;
    }

    .password-wrapper {
        position: relative;
        display: flex;
        align-items: center;
    }

    .password-wrapper input {
        width: 100%;
        padding-right: 2.5rem;
    }

    .toggle-password {
        position: absolute;
        right: 0.75rem;
        background: none;
        border: none;
        cursor: pointer;
        color: #94a3b8;
        padding: 0;
        display: flex;
        align-items: center;
        justify-content: center;
        transition: color 0.2s ease;
    }

    .toggle-password:hover {
        color: #d4af37;
    }

    .toggle-password .eye-closed {
        display: none;
    }

    .toggle-password.active .eye-open {
        display: none;
    }

    .toggle-password.active .eye-closed {
        display: block;
    }

    .form-group input::placeholder {
        color: #94a3b8;
    }

    /* Honeypot поле */
    .honeypot-field {
        position: absolute;
        left: -9999px;
        opacity: 0;
        pointer-events: none;
    }

    /* Сообщения об ошибках */
    .error-message {
        color: #ef4444;
        font-size: 0.75rem;
        min-height: 1rem;
        margin-top: 0.25rem;
    }

    .form-group input.error {
        border-color: #ef4444;
    }

    .form-group input.error:focus {
        box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
    }

    /* Опции формы */
    .form-options {
        display: flex;
        justify-content: space-between;
        align-items: center;
        font-size: 0.875rem;
    }

    .checkbox-label {
        display: flex;
        align-items: center;
        gap: 0.5rem;
        color: #64748b;
        cursor: pointer;
    }

    .checkbox-label input[type="checkbox"] {
        width: 16px;
        height: 16px;
        accent-color: #d4af37;
        cursor: pointer;
    }

    .forgot-link {
        color: #d4af37;
        text-decoration: none;
        font-weight: 500;
        transition: color 0.2s ease;
    }

    .forgot-link:hover {
        color: #b8941f;
    }

    /* Кнопка отправки */
    .btn-submit {
        background: linear-gradient(135deg, #eac26e 0%, #ce9f40 100%);
        color: #ffffff;
        border: none;
        border-radius: 8px;
        padding: 0.75rem;
        font-size: 0.95rem;
        font-weight: 700;
        cursor: pointer;
        transition: all 0.3s ease;
        margin-top: 0.25rem;
    }

    .btn-submit:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 20px rgba(206, 159, 64, 0.4);
    }

    .btn-submit:active {
        transform: translateY(0);
    }

    /* Подвал формы */
    .auth-footer {
        text-align: center;
        margin-top: 1.25rem;
        padding-top: 1.25rem;
        border-top: 1px solid #e2e8f0;
    }

    .auth-footer p {
        color: #64748b;
        font-size: 0.9rem;
        margin: 0;
    }

    .auth-footer a {
        color: #d4af37;
        text-decoration: none;
        font-weight: 600;
        transition: color 0.2s ease;
    }

    .auth-footer a:hover {
        color: #b8941f;
    }

    /* Адаптивность */
    @media (max-width: 480px) {
        .auth-page {
            padding: 5rem 1rem 1.5rem;
        }
        
        .auth-card {
            padding: 1.5rem 1rem;
        }

        .auth-header h1 {
            font-size: 1.35rem;
        }

        .auth-header p {
            font-size: 0.85rem;
        }

        .form-group {
            gap: 0.15rem;
        }

        .form-group label {
            font-size: 0.8rem;
        }

        .form-group input {
            padding: 0.5rem 0.65rem;
            font-size: 0.85rem;
        }

        .form-group input::placeholder {
            font-size: 0.8rem;
        }

        .error-message {
            font-size: 0.7rem;
        }

        .form-options {
            flex-direction: column;
            align-items: flex-start;
            gap: 0.75rem;
            font-size: 0.85rem;
        }

        .checkbox-label {
            gap: 0.4rem;
        }

        .checkbox-label input[type="checkbox"] {
            width: 14px;
            height: 14px;
        }

        .forgot-link {
            font-size: 0.85rem;
        }

        .btn-submit {
            padding: 0.65rem;
            font-size: 0.9rem;
            margin-top: 0.2rem;
        }
    }

    @media (max-width: 375px) {
        .auth-page {
            padding: 4.5rem 0.75rem 1rem;
        }

        .auth-card {
            padding: 1.25rem 0.75rem;
            border-radius: 12px;
        }

        .auth-header h1 {
            font-size: 1.25rem;
        }

        .form-group input {
            padding: 0.45rem 0.55rem;
            font-size: 0.8rem;
            border-radius: 6px;
        }

        .form-group label {
            font-size: 0.75rem;
        }

        .btn-submit {
            padding: 0.55rem;
            font-size: 0.85rem;
            border-radius: 6px;
        }
    }

    @media (max-width: 320px) {
        .auth-page {
            padding: 4rem 0.5rem 0.75rem;
        }

        .auth-card {
            padding: 1rem 0.5rem;
        }

        .auth-header h1 {
            font-size: 1.15rem;
        }

        .form-group input {
            padding: 0.4rem 0.5rem;
            font-size: 0.75rem;
        }

        .btn-submit {
            padding: 0.5rem;
            font-size: 0.8rem;
        }
    }
</style>

<script>
    const emailInput = document.getElementById('email') as HTMLInputElement;
    const passwordInput = document.getElementById('password') as HTMLInputElement;

    function showError(input: HTMLInputElement, message: string) {
        const errorSpan = document.getElementById(`${input.id}-error`);
        if (errorSpan) {
            errorSpan.textContent = message;
        }
        input.classList.add('error');
    }

    function clearError(input: HTMLInputElement) {
        const errorSpan = document.getElementById(`${input.id}-error`);
        if (errorSpan) {
            errorSpan.textContent = '';
        }
        input.classList.remove('error');
    }

    function validateEmail(value: string): boolean {
        const regex = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;
        return regex.test(value);
    }

    function validatePassword(value: string): boolean {
        return value.length >= 8 && value.length <= 12;
    }

    document.querySelectorAll('.toggle-password').forEach(button => {
        button.addEventListener('click', () => {
            const targetId = button.getAttribute('data-target');
            const input = document.getElementById(targetId) as HTMLInputElement;
            if (input) {
                const isPassword = input.type === 'password';
                input.type = isPassword ? 'text' : 'password';
                button.classList.toggle('active', isPassword);
            }
        });
    });

    emailInput?.addEventListener('input', () => {
        const value = emailInput.value.replace(/[^\w@\.\-]/g, '');
        emailInput.value = value;
        if (emailInput.value && !validateEmail(emailInput.value)) {
            showError(emailInput, 'Введите корректный email');
        } else {
            clearError(emailInput);
        }
    });

    passwordInput?.addEventListener('input', () => {
        if (passwordInput.value.length > 12) {
            passwordInput.value = passwordInput.value.slice(0, 12);
        }
        if (passwordInput.value && !validatePassword(passwordInput.value)) {
            showError(passwordInput, 'Пароль должен быть 8-12 символов');
        } else {
            clearError(passwordInput);
        }
    });

    document.getElementById('sign-in-form')?.addEventListener('submit', async (e) => {
        e.preventDefault();
        
        const form = e.target as HTMLFormElement;
        const formData = new FormData(form);

        const honeypot = formData.get('website_url') as string;
        if (honeypot && honeypot.trim() !== '') {
            alert('Доступ запрещён');
            return;
        }

        const email = formData.get('email') as string;
        const password = formData.get('password') as string;

        let hasErrors = false;

        if (!validateEmail(email)) {
            showError(emailInput, 'Введите корректный email');
            hasErrors = true;
        }

        if (!password || password.trim() === '') {
            showError(passwordInput, 'Введите пароль');
            hasErrors = true;
        } else if (!validatePassword(password)) {
            showError(passwordInput, 'Пароль должен быть от 8 до 12 символов');
            hasErrors = true;
        }

        if (hasErrors) {
            return;
        }

        console.log('Вход:', { email, password });

        const submitBtn = document.querySelector('.btn-submit') as HTMLButtonElement;
        submitBtn.disabled = true;
        submitBtn.textContent = 'Вход...';

        try {
            const response = await fetch('/api/auth/sign-in', {
                method: 'POST',
                headers: { 'Content-Type': 'application/json' },
                body: JSON.stringify({ 
                    email, 
                    password,
                    redirect: new URLSearchParams(window.location.search).get('redirect')
                }),
            });

            const data = await response.json();

            if (response.ok && data.token) {
                // Сохраняем токен в localStorage
                localStorage.setItem('auth_token', data.token);
                localStorage.setItem('user', JSON.stringify(data.user));
                
                // Сохраняем токен в куку для API
                document.cookie = `pb_auth=${data.token}; path=/; max-age=${7 * 24 * 60 * 60}; SameSite=Lax`;
                
                // Перенаправляем на указанный URL или в личный кабинет
                const redirectUrl = data.redirect || '/cabinet';
                
                // Если есть хэш с ID комментариев - добавляем его к URL
                const hash = new URLSearchParams(window.location.search).get('hash');
                const finalUrl = hash ? `${redirectUrl}#comments` : redirectUrl;
                
                window.location.href = finalUrl;
            } else if (data.error?.includes('подтверждён')) {
                showError(emailInput, data.error);
            } else if (data.error?.includes('пароль')) {
                showError(passwordInput, data.error);
            } else {
                showError(passwordInput, data.error || 'Неверный email или пароль');
            }
        } catch (err) {
            showError(passwordInput, 'Ошибка соединения');
        } finally {
            submitBtn.disabled = false;
            submitBtn.textContent = 'Войти';
        }
    });
</script>