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/* Auth. */
function switchTab(tab)
{
const loginForm = document.getElementById('login-form');
const registerForm = document.getElementById('register-form');
const loginTab = document.getElementById('login-tab');
const registerTab = document.getElementById('register-tab');
if (tab === 'login')
{
loginForm.style.display = 'flex';
registerForm.style.display = 'none';
loginTab.classList.add('active');
registerTab.classList.remove('active');
}
else
{
loginForm.style.display = 'none';
registerForm.style.display = 'flex';
loginTab.classList.remove('active');
registerTab.classList.add('active');
}
document.getElementById('auth-error').textContent = '';
}
async function register(e)
{
e.preventDefault();
const username = document.getElementById('reg-username').value;
const password = document.getElementById('reg-password').value;
const res = await fetch('/auth/register',
{
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({ username, password })
});
if (res.ok)
{
document.getElementById('auth-error').textContent = '';
showTasks();
}
else
{
const data = await res.json();
document.getElementById('auth-error').textContent = data.error || 'Registration failed';
}
}
async function login(e)
{
e.preventDefault();
const username = document.getElementById('login-username').value;
const password = document.getElementById('login-password').value;
const res = await fetch('/auth/login',
{
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({ username, password })
});
if (res.ok)
{
document.getElementById('auth-error').textContent = '';
showTasks();
}
else
{
const data = await res.json();
document.getElementById('auth-error').textContent = data.error || 'Login failed';
}
}
async function logout()
{
await fetch('/auth/logout', { method: 'POST' });
document.getElementById('tasks-section').style.display = 'none';
document.getElementById('auth-section').style.display = 'block';
}
/* Tasks. */
async function showTasks()
{
document.getElementById('auth-section').style.display = 'none';
document.getElementById('tasks-section').style.display = 'block';
await loadTasks();
}
async function loadTasks()
{
const res = await fetch('/tasks');
const tasks = await res.json();
const list = document.getElementById('task-list');
if (tasks.length === 0)
{
list.innerHTML = '<p class="empty-msg">No tasks yet. Add one above!</p>';
return;
}
list.innerHTML = tasks.map(task => `
<li class="task-item">
<input type="checkbox" ${task.done ? 'checked' : ''} onchange="toggleDone(${task.id}, this.checked)">
<div class="task-info">
<div class="task-title ${task.done ? 'done' : ''}">${escapeHtml(task.title)}</div>
${task.description ? `<div class="task-desc">${escapeHtml(task.description)}</div>` : ''}
</div>
<button class="delete-btn" onclick="deleteTask(${task.id})" title="Delete">×</button>
</li>
`).join('');
}
async function createTask(e)
{
e.preventDefault();
const title = document.getElementById('task-title').value;
const description = document.getElementById('task-desc').value;
const res = await fetch('/tasks',
{
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({ title, description })
});
if (res.ok)
{
document.getElementById('task-title').value = '';
document.getElementById('task-desc').value = '';
await loadTasks();
}
}
async function toggleDone(id, done)
{
const res = await fetch(`/tasks/${id}`,
{
method: 'PUT',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({ done: done ? 1 : 0 })
});
if (res.ok)
{
await loadTasks();
}
}
async function deleteTask(id)
{
const res = await fetch(`/tasks/${id}`, { method: 'DELETE' });
if (res.ok)
{
await loadTasks();
}
}
/* Helpers. */
function escapeHtml(str)
{
const div = document.createElement('div');
div.textContent = str;
return div.innerHTML;
}
/* Init. */
/* Check if already logged in on page load. */
(async function init()
{
const res = await fetch('/auth/check');
if (res.ok)
{
showTasks();
}
})();
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