{% extends "base.html" %}
{% block title %}Login{% endblock %}
{% block body_class %}auth-page{% endblock %}

{% block content %}
<div class="auth-container">
    <h1>Login</h1>
    <p>Enter your CyTube username to receive a one-time code via PM.</p>

    <div id="otp-request" class="auth-form">
        <input type="text" id="username" placeholder="CyTube username" autocomplete="username" maxlength="50">
        <button id="request-otp-btn" class="btn btn-primary">Send Code</button>
    </div>

    <div id="otp-verify" class="auth-form hidden">
        <p class="otp-sent-msg">Code sent! Check your PMs from Kryten.</p>
        <input type="text" id="otp-code" placeholder="6-digit code" maxlength="6" inputmode="numeric" autocomplete="one-time-code">
        <button id="verify-otp-btn" class="btn btn-primary">Verify</button>
    </div>

    <div id="auth-error" class="error-msg hidden"></div>
</div>
{% endblock %}

{% block scripts %}
<script>
document.getElementById('request-otp-btn').addEventListener('click', async () => {
    const username = document.getElementById('username').value.trim();
    if (!username) return;
    const errEl = document.getElementById('auth-error');
    errEl.classList.add('hidden');

    const resp = await fetch('/auth/otp/request', {
        method: 'POST',
        headers: {'Content-Type': 'application/json'},
        body: JSON.stringify({username})
    });
    if (resp.ok) {
        document.getElementById('otp-request').classList.add('hidden');
        document.getElementById('otp-verify').classList.remove('hidden');
    } else {
        const data = await resp.json();
        errEl.textContent = data.detail || 'Failed to send OTP';
        errEl.classList.remove('hidden');
    }
});

document.getElementById('verify-otp-btn').addEventListener('click', async () => {
    const username = document.getElementById('username').value.trim();
    const code = document.getElementById('otp-code').value.trim();
    if (!code) return;
    const errEl = document.getElementById('auth-error');
    errEl.classList.add('hidden');

    const resp = await fetch('/auth/otp/verify', {
        method: 'POST',
        headers: {'Content-Type': 'application/json'},
        body: JSON.stringify({username, code})
    });
    if (resp.ok) {
        window.location.href = '/catalog/browse';
    } else {
        const data = await resp.json();
        errEl.textContent = data.detail || 'Invalid code';
        errEl.classList.remove('hidden');
    }
});
</script>
{% endblock %}