/**
 * StatusPilot Ultra v6 — Fusion Engine
 * Best of all 3 dashboards combined
 */

let appData = { status: [], config: null };
let charts = {};
let currentLocationFilter = 'All';
let searchQuery = '';
let isAuthPromptShowing = false;

// --- Axios 401 Interceptor ---
axios.interceptors.response.use(r => r, error => {
    if (error.response && error.response.status === 401 && !isAuthPromptShowing) {
        isAuthPromptShowing = true;
        document.getElementById('master-auth-overlay').style.display = 'flex';
    }
    return Promise.reject(error);
});

// --- Init ---
async function init() {
    updateClock();
    setInterval(updateClock, 1000);

    const auth = await checkAuth();
    if (auth.required && !auth.authenticated) {
        document.getElementById('master-auth-overlay').style.display = 'flex';
        return;
    }
    unlock();

    const lic = await checkLicense();
    if (!lic.licensed) {
        document.getElementById('license-overlay').style.display = 'flex';
        return;
    }

    await loadData();
    setInterval(loadData, 30000);
}

async function loadData() {
    try { await Promise.all([loadConfig(), loadSummary(), loadStatus()]); }
    catch (e) { console.error("Sync:", e); }
}

async function checkAuth() {
    try { return (await axios.get('/api/auth/status')).data; }
    catch { return { required: true, authenticated: false }; }
}

function unlock() {
    isAuthPromptShowing = false;
    document.getElementById('master-auth-overlay').style.display = 'none';
    const app = document.getElementById('main-app');
    app.style.filter = 'none'; app.style.opacity = '1'; app.style.pointerEvents = 'auto';
}

document.getElementById('master-login-btn').onclick = async () => {
    const key = document.getElementById('master-key-input').value.trim();
    if (!key) return;
    try {
        const res = await axios.post('/api/auth/login', { key });
        if (res.data.success) {
            setTimeout(async () => {
                const s = await checkAuth();
                if (s.authenticated) { unlock(); await init(); }
            }, 500);
        } else { alert("Invalid Master Key"); }
    } catch { alert("Auth Node Offline"); }
};

async function checkLicense() {
    try { return (await axios.get('/api/license/status')).data; }
    catch { return { licensed: false }; }
}

// --- Config ---
async function loadConfig() {
    const res = await axios.get('/api/config');
    appData.config = res.data;

    const locFilter = document.getElementById('location-filter');
    const toolSelect = document.getElementById('test-tool-select');
    const locs = new Set(['All', 'Global']);
    appData.config.services_to_monitor.forEach(s => { if(s.location) locs.add(s.location); });

    const prev = locFilter.value;
    locFilter.innerHTML = '';
    locs.forEach(l => {
        const o = document.createElement('option');
        o.value = l; o.textContent = l === 'All' ? 'All Regions' : l;
        locFilter.appendChild(o);
    });
    if (prev) locFilter.value = prev;

    toolSelect.innerHTML = '';
    appData.config.services_to_monitor.forEach(s => {
        const o = document.createElement('option');
        o.value = s.name; o.textContent = s.name;
        toolSelect.appendChild(o);
    });

    renderManageList();
    document.getElementById('check-interval').value = appData.config.check_interval;
    document.getElementById('alert-mode').value = appData.config.alert_mode || 'SMTP';
    document.getElementById('smtp-user').value = appData.config.smtp_sender || '';
}

function renderManageList() {
    const list = document.getElementById('manage-svc-list');
    if (!list) return;
    list.innerHTML = '';
    appData.config.services_to_monitor.forEach(s => {
        const item = document.createElement('div');
        item.className = 'manage-item';
        item.innerHTML = `
            <div><b>${s.name}</b><br><span>${s.url}</span></div>
            <button class="btn-remove" data-name="${s.name}"><i class="fas fa-trash-alt"></i> Remove</button>
        `;
        list.appendChild(item);
    });
    list.querySelectorAll('.btn-remove').forEach(btn => {
        btn.onclick = (e) => {
            const t = e.target.closest('.btn-remove');
            if (t) deleteService(t.getAttribute('data-name'));
        };
    });
}

async function deleteService(name) {
    try {
        const res = await axios.post('/api/config/delete', { name });
        if (res.data.status === 'success') { await loadConfig(); await loadStatus(); }
        else alert("Error: " + res.data.message);
    } catch (e) { alert("Delete failed."); }
}

// --- Summary ---
async function loadSummary() {
    const s = (await axios.get('/api/summary')).data;
    document.getElementById('stat-monitors').textContent = s.total_monitors;
    document.getElementById('stat-uptime').textContent = s.uptime_pct + '%';
    document.getElementById('stat-incidents').textContent = s.incidents;
    document.getElementById('stat-latency').textContent = s.avg_latency + 'ms';
}

// --- Status ---
async function loadStatus() {
    appData.status = (await axios.get('/api/status')).data;
    renderStatusGrid();
    renderLatencyMatrix();
}

function renderLatencyMatrix() {
    const container = document.getElementById('latency-matrix-bars');
    if (!container) return;
    container.innerHTML = '';
    const sorted = [...appData.status].sort((a, b) => b.latency - a.latency).slice(0, 8);
    const max = Math.max(...sorted.map(s => s.latency), 100);

    sorted.forEach(s => {
        const pct = Math.min((s.latency / max) * 100, 100);
        const row = document.createElement('div');
        row.className = 'latency-row';
        row.innerHTML = `
            <span class="name">${s.name}</span>
            <div class="bar-track"><div class="bar-fill" style="width:${pct}%"></div></div>
            <span class="ms">${s.latency}ms</span>
        `;
        container.appendChild(row);
    });
}

function renderStatusGrid() {
    const grid = document.getElementById('status-grid');
    grid.innerHTML = '';
    const filtered = appData.status.filter(s => {
        const locOk = currentLocationFilter === 'All' || s.location === currentLocationFilter;
        const searchOk = !searchQuery || s.name.toLowerCase().includes(searchQuery.toLowerCase());
        return locOk && searchOk;
    });

    filtered.forEach(s => {
        const row = document.createElement('div');
        row.className = 'svc-row';
        row.onclick = () => openDetails(s.name);

        let barsHTML = '<div class="uptime-bars">';
        const history = [...Array(Math.max(0, 30 - s.timeline.length)).fill(null), ...s.timeline];
        history.forEach(state => {
            const cls = state === null ? 'none' : (state ? 'up' : 'down');
            barsHTML += `<div class="bar ${cls}"></div>`;
        });
        barsHTML += '</div>';

        const scopeClass = s.location === 'Security Node' ? 'security' : (s.location === 'Primary Web' ? 'web' : 'global');

        row.innerHTML = `
            <div><div class="svc-name">${s.name}</div><div class="svc-url">${s.url}</div></div>
            <div><span class="scope-badge ${scopeClass}">${s.location}</span></div>
            ${barsHTML}
            <div class="status-label ${s.is_up ? 'up' : 'down'}">${s.is_up ? 'ONLINE' : 'DOWN'}</div>
            <div class="latency-chip">${s.latency}ms</div>
        `;
        grid.appendChild(row);
    });
}

// --- Modal ---
async function openDetails(name) {
    document.getElementById('modal-title').textContent = name;
    document.getElementById('modal-subtitle').textContent = `Historical performance data for ${name}`;
    document.getElementById('matrix-modal').classList.add('open');
    try {
        const res = await axios.get(`/api/history/${encodeURIComponent(name)}`);
        renderModalCharts(res.data);
    } catch (e) { console.error(e); }
}

function renderModalCharts(data) {
    const labels = data.map(d => new Date(d.timestamp).toLocaleTimeString());
    const latencies = data.map(d => d.latency);
    const uptimes = data.map(d => d.is_up ? 100 : 0);

    if (charts.detLat) charts.detLat.destroy();
    if (charts.detUp) charts.detUp.destroy();
    if (charts.detErr) charts.detErr.destroy();

    const base = {
        responsive: true, maintainAspectRatio: false,
        plugins: { legend: { display: false } },
        scales: {
            x: { display: false },
            y: { grid: { color: 'rgba(255,255,255,0.04)' }, ticks: { color: '#64748b', font: { size: 9 } } }
        }
    };

    charts.detUp = new Chart(document.getElementById('uptimeChart'), {
        type: 'line',
        data: { labels, datasets: [{ data: uptimes, borderColor: '#10b981', backgroundColor: 'rgba(16,185,129,0.08)', fill: true, stepped: true, pointRadius: 0, borderWidth: 1.5 }] },
        options: { ...base, scales: { ...base.scales, y: { ...base.scales.y, max: 105, min: -5 } } }
    });

    charts.detLat = new Chart(document.getElementById('latencyChart'), {
        type: 'line',
        data: { labels, datasets: [{ data: latencies, borderColor: '#0ea5e9', backgroundColor: 'rgba(14,165,233,0.08)', fill: true, tension: 0.4, pointRadius: 0, borderWidth: 1.5 }] },
        options: base
    });

    const upCount = data.filter(d => d.is_up).length;
    const downCount = data.filter(d => !d.is_up).length;
    charts.detErr = new Chart(document.getElementById('errorChart'), {
        type: 'doughnut',
        data: { labels: ['Operational', 'Issues'], datasets: [{ data: [upCount, downCount], backgroundColor: ['#10b981', '#1e293b'], borderWidth: 0 }] },
        options: { cutout: '75%', plugins: { legend: { position: 'bottom', labels: { color: '#64748b', padding: 12, font: { size: 10 } } } } }
    });

    renderIncidents(data);
}

function renderIncidents(data) {
    const log = document.getElementById('incident-log');
    if (!log) return;
    log.innerHTML = '';
    const fails = data.filter(d => !d.is_up).reverse().slice(0, 10);
    if (fails.length === 0) {
        log.innerHTML = '<div style="text-align:center; padding:1.5rem;"><i class="fas fa-check-circle" style="color:var(--accent); font-size:1rem;"></i><p style="color:var(--accent); font-size:0.72rem; font-weight:700; margin-top:6px;">✓ SYSTEM IS NOMINAL</p></div>';
        return;
    }
    fails.forEach(f => {
        const el = document.createElement('div');
        el.style.cssText = 'display:flex; justify-content:space-between; align-items:center; padding:6px 10px; margin-bottom:4px; background:rgba(244,63,94,0.06); border-left:3px solid var(--danger); border-radius:4px;';
        const msg = f.message || "Connection Error";
        el.innerHTML = `<div><span style="color:var(--danger); font-size:0.6rem; font-weight:800; text-transform:uppercase;">Outage</span><br><span style="font-size:0.7rem; color:#fff;">${msg}</span></div><span style="font-size:0.65rem; color:var(--text-dim); font-weight:600;">${new Date(f.timestamp).toLocaleTimeString()}</span>`;
        log.appendChild(el);
    });
}

function updateClock() {
    document.getElementById('live-clock').textContent = new Date().toLocaleTimeString();
}

// --- Event Handlers ---

// Modal close
document.getElementById('modal-close-btn').onclick = () => document.getElementById('matrix-modal').classList.remove('open');
document.getElementById('matrix-modal').onclick = (e) => { if (e.target === document.getElementById('matrix-modal')) document.getElementById('matrix-modal').classList.remove('open'); };

// Navigation
document.querySelectorAll('.sidebar-nav a').forEach(item => {
    item.onclick = (e) => {
        e.preventDefault();
        document.querySelectorAll('.sidebar-nav a').forEach(n => n.classList.remove('active'));
        item.classList.add('active');
        const target = item.id.replace('nav-', 'section-');
        document.querySelectorAll('.content-section').forEach(s => s.style.display = 'none');
        document.getElementById(target).style.display = 'block';
    };
});

// Location filter
document.getElementById('location-filter').onchange = (e) => { currentLocationFilter = e.target.value; renderStatusGrid(); };

// Search
document.getElementById('search-services').oninput = (e) => { searchQuery = e.target.value; renderStatusGrid(); };

// M365
document.getElementById('activate-m365-btn').onclick = async () => {
    const sender = document.getElementById('m365-sender').value.trim();
    const pass = document.getElementById('m365-pass').value.trim();
    const recipient = document.getElementById('m365-recipient').value.trim();
    if (!sender || !pass || !recipient) return alert("All M365 fields required.");
    const config = { ...appData.config };
    config.services_to_monitor.push({ name: "M365 Mail Flow", url: "https://outlook.office365.com", location: "Global", type: "m365_mail", m365_sender: sender, m365_password: pass, m365_recipient: recipient });
    try { await axios.post('/api/config', config); alert("M365 Monitor Activated!"); loadConfig(); }
    catch { alert("Failed to activate."); }
};

// Add service
document.getElementById('add-svc-btn').onclick = async () => {
    const name = document.getElementById('new-svc-name').value.trim();
    const url = document.getElementById('new-svc-url').value.trim();
    const loc = document.getElementById('new-svc-loc').value.trim() || 'Global';
    const type = document.getElementById('new-svc-type').value;
    if (!name || !url) return alert("Name and URL required.");
    const config = { ...appData.config };
    config.services_to_monitor.push({ name, url, location: loc, type });
    try { await axios.post('/api/config', config); alert("Node Provisioned!"); document.getElementById('new-svc-name').value = ''; document.getElementById('new-svc-url').value = ''; loadConfig(); loadStatus(); }
    catch { alert("Error."); }
};

// Save settings
document.getElementById('save-settings-btn').onclick = async () => {
    const config = { ...appData.config };
    config.check_interval = parseInt(document.getElementById('check-interval').value);
    config.alert_mode = document.getElementById('alert-mode').value;
    config.smtp_sender = document.getElementById('smtp-user').value;
    config.smtp_password = document.getElementById('smtp-pass').value;
    try { await axios.post('/api/config', config); alert("Config Saved!"); loadConfig(); }
    catch { alert("Save failed."); }
};

// Purge
const purgeBtn = document.getElementById('purge-stale-btn');
if (purgeBtn) purgeBtn.onclick = async () => { try { const r = await axios.post('/api/admin/purge_stale'); alert(`Purged ${r.data.purged_records} records.`); loadData(); } catch { alert("Purge failed."); } };

// Export
const exportBtn = document.getElementById('download-excel-btn');
if (exportBtn) exportBtn.onclick = () => window.location.href = '/api/report/excel';

init();