// auth.js - Аутентификация и авторизация
let currentUser = null;

async function checkAuth() {
    try {
        const response = await fetch('/api/user');
        if (response.ok) {
            const data = await response.json();
            currentUser = data.user;
            showMainInterface();
        } else {
            showLoginInterface();
        }
    } catch (error) {
        showLoginInterface();
    }
}

function showLoginInterface() {
    document.getElementById('login-modal').style.display = 'block';
    document.querySelector('.container').style.display = 'none';
}

function showMainInterface() {
    document.getElementById('login-modal').style.display = 'none';
    document.querySelector('.container').style.display = 'block';
    
    let userInfo = `Вы вошли как: ${currentUser.name}`;
    if (currentUser.auth_type === 'ldap') {
        userInfo += ` (LDAP)`;
    }
    if (currentUser.groups && currentUser.groups.length > 0) {
        userInfo += ` | Группы: ${currentUser.groups.join(', ')}`;
    }
    
    document.getElementById('current-user').textContent = userInfo;
    
    document.getElementById('tasks-controls').style.display = 'block';
    
    const showDeletedLabel = document.querySelector('.show-deleted-label');
    if (showDeletedLabel) {
        if (currentUser.role === 'admin') {
            showDeletedLabel.style.display = 'flex';
        } else {
            showDeletedLabel.style.display = 'none';
        }
    }
    
    loadUsers();
    loadTasks();
    loadActivityLogs();
    showSection('tasks');
    loadKanbanTasks();
    
    showingTasksWithoutDate = false;
    const btn = document.getElementById('tasks-no-date-btn');
    if (btn) btn.classList.remove('active');
}

async function login(event) {
    event.preventDefault();
    
    const login = document.getElementById('login').value;
    const password = document.getElementById('password').value;

    try {
        const response = await fetch('/api/login', {
            method: 'POST',
            headers: {
                'Content-Type': 'application/json',
            },
            body: JSON.stringify({ login, password })
        });

        if (response.ok) {
            const data = await response.json();
            currentUser = data.user;
            showMainInterface();
        } else {
            const error = await response.json();
            alert(error.error || 'Ошибка входа');
        }
    } catch (error) {
        console.error('Ошибка:', error);
        alert('Ошибка подключения к серверу');
    }
}

async function logout() {
    try {
        await fetch('/api/logout', { method: 'POST' });
        currentUser = null;
        showLoginInterface();
    } catch (error) {
        console.error('Ошибка выхода:', error);
    }
}