import { h, PageHeader, apiFetch, definePage, renderGuard, refactorLoad, ServiceStatus, StatCard } from '/static/hoover/index.js?v=6';

export default definePage({
    init() {
        return { data: null };
    },
    subscribe: ['firewall', 'dnsmasq', 'wireguard', 'acme', 'networkd'],
    async load(state, abortController, entry) {
        await refactorLoad(state,
            s => s.data,
            async (s, sig, isAborted) => {
                const res = await apiFetch('/api/status/all', { signal: sig });
                if (isAborted()) return;
                if (res.ok) s.data = res.data;
                else s.error = res.error;
            },
            { entry, abortController },
        );
    },
    render(state) {
        const guard = renderGuard(state, 'Dashboard', 'System overview', state.data);
        if (guard) return guard;

        const d = state.data;
        const fwZones = (d.firewall?.zones) || {};
        const net = d.net || {};
        const nCount = Object.keys(net).length;
        const upI = Object.values(net).filter(i => i.state === 'up');
        const upC = upI.length;
        const certs = d.certs || [];
        const certW = certs.filter(c => c.expired || c.days_remaining <= 30);
        const dmsk = d.dnsmasq?.status || {};
        const wP = (d.wg || {}).peers || [];

        return [
            PageHeader({ title: 'Dashboard', subtitle: 'System overview' }),
            h('div', { class: 'grid grid-4' },
                StatCard({
                    label: 'Active Zones',
                    value: Object.keys(fwZones).length,
                    meta: Object.keys(fwZones).join(', ') || 'None',
                }),
                StatCard({
                    label: 'Interfaces Up',
                    value: upC + '/' + nCount,
                    meta: upI.map(i => i.name).join(', ') || 'None up',
                }),
                StatCard({
                    label: 'WireGuard',
                    value: String(d.wg?.state || 'unknown'),
                    meta: wP.length + ' peers',
                }),
                StatCard({
                    label: 'Certificates',
                    value: certs.length,
                    meta: certW.length + ' expiring/expired',
                }),
            ),
            h('div', { class: 'grid grid-2' },
                h('div', { class: 'card' },
                    h('div', { class: 'card-header' }, 'Services'),
                    h('div', { class: 'card-body' },
                        h('ul', { class: 'service-list' },
                            h('li', null, ServiceStatus({ state: dmsk.state || 'down', label: 'Dnsmasq' })),
                            h('li', null, ServiceStatus({ state: d.wg?.state || 'down', label: 'WireGuard' })),
                        ),
                    ),
                ),
            ),
        ];
    },
});