/**
 * VenueFlow — Simulator Control UI
 */

let simRefreshInterval = null;

document.addEventListener('DOMContentLoaded', () => {
    simRefreshInterval = setInterval(refreshSimStatus, 3000);
});

async function refreshSimStatus() {
    try {
        const status = await apiCall('/api/simulator/status');

        updateEl('sim-tick', status.tick_count || 0);
        updateEl('sim-speed', (status.speed || 1) + 'x');
        updateEl('sim-occ', (status.venue_occupancy || 0) + '%');

        const badge = document.getElementById('sim-status-badge');
        if (badge) {
            badge.textContent = status.running ? '🟢 Running' : '⏸️ Stopped';
            badge.className = status.running ? 'badge badge-low' : 'badge badge-info';
        }
    } catch (e) {}
}

async function startSim() {
    try {
        await apiCall('/api/simulator/start', { method: 'POST' });
        showToast('Simulation Started', 'Real-time data generation is active', 'success');
        refreshSimStatus();
    } catch (err) {
        showToast('Error', err.message, 'error');
    }
}

async function stopSim() {
    try {
        await apiCall('/api/simulator/stop', { method: 'POST' });
        showToast('Simulation Stopped', 'Data generation paused', 'info');
        refreshSimStatus();
    } catch (err) {
        showToast('Error', err.message, 'error');
    }
}

async function setPhase(phase) {
    try {
        await apiCall('/api/simulator/phase', {
            method: 'POST',
            body: JSON.stringify({ phase }),
        });
        showToast('Phase Changed', `Event phase set to: ${phase.replace('_', ' ')}`, 'success');
        refreshSimStatus();
    } catch (err) {
        showToast('Error', err.message, 'error');
    }
}

async function setSpeed(speed) {
    try {
        const label = document.getElementById('speed-label');
        if (label) label.textContent = speed + 'x';

        await apiCall('/api/simulator/speed', {
            method: 'POST',
            body: JSON.stringify({ speed: parseFloat(speed) }),
        });
    } catch (err) {
        showToast('Error', err.message, 'error');
    }
}

function updateEl(id, value) {
    const el = document.getElementById(id);
    if (el) el.textContent = value;
}

console.log('🎮 Simulator UI loaded');