import { html, PageHeader, Table, renderGuardMulti, enc, $val, apiFetch, toast, definePage, getModel, StatusText, QuickModal, ZoneSelect } from '/static/hoover/index.js';

async function changeZone(name, zone, state) {
    const r = await apiFetch('/api/firewall/zones/' + enc(zone) + '/interfaces', {
        method: 'POST',
        body: { interfaces: [name] },
    });
    if (r.ok) {
        toast(name + ' \u2192 ' + zone, 'success');
        // No modelFetch — daemon broadcasts both subsystems via WS delta.
    } else {
        toast(r.error || 'Failed', 'error');
    }
}

const cfgModalFn = QuickModal({
    title: (d) => 'Config: ' + d.name,
    fields: (d) => {
        const cfg = d.config || {};
        return [
            { label: 'Addresses (comma-separated)', id: 'cfg-addrs', value: (cfg.addresses || []).join(', '), placeholder: '192.168.1.1/24' },
            { label: 'Gateway', id: 'cfg-gw', value: cfg.gateway || '' },
            { label: 'DNS (comma-separated)', id: 'cfg-dns', value: (cfg.dns || []).join(', '), placeholder: '1.1.1.1, 8.8.8.8' },
        ];
    },
    submit: {
        url: (d) => '/api/network/interfaces/' + enc(d.name),
        body: () => ({
            addresses: ($val('cfg-addrs') || '').split(',').map(s => s.trim()).filter(Boolean),
            gateway: ($val('cfg-gw') || '').trim() || undefined,
            dns: ($val('cfg-dns') || '').split(',').map(s => s.trim()).filter(Boolean),
        }),
        successMsg: 'Config saved',
    },
});

export default definePage({
    init() {
        return {
            firewall: getModel('firewall'),
            network: getModel('network'),
        };
    },
    render(state) {
        const guard = renderGuardMulti('Interfaces', 'Network interface management', state.firewall, state.network);
        if (guard) return guard;

        const fwZones = state.firewall.data?.zones || {};
        const netData = state.network.data?.interfaces || {};
        const zones = Object.keys(fwZones);
        const activeZones = state.firewall.data?.active_zones || {};
        // Per-interface config lives in the top-level config (flat runtime
        // entries carry no per-interface config).
        const netCfgIfaces = state.network.data?.config?.interfaces || {};

        // Loopback has no networkd config to manage — show real NICs only.
        const ifaces = Object.entries(netData).filter(([name]) => name !== 'lo').map(([name, entry]) => {
            let zone = null;
            for (const [zoneName, zIfaces] of Object.entries(activeZones)) {
                if ((zIfaces || []).includes(name)) {
                    zone = zoneName;
                    break;
                }
            }
            return {
                name,
                mac: entry?.mac || null,
                ips: [...(netCfgIfaces[name]?.addresses || []), ...(entry?.addresses || [])],
                state: (entry?.state || '').startsWith('routable') || (entry?.state || '').startsWith('carrier') ? 'up' : 'down',
                zone,
                config: netCfgIfaces[name] || {},
            };
        });

        const rows = ifaces.map(iface =>
            html`<tr key=${iface.name}>
                <td><strong>${iface.name}</strong></td>
                <td class="text-muted">${String(iface.mac || 'N/A')}</td>
                <td>${(iface.ips || []).join(', ') || 'N/A'}</td>
                <td><${StatusText} status=${iface.state} /></td>
                <td>
                    <${ZoneSelect} zones=${zones} value=${iface.zone}
                        onChange=${(z) => changeZone(iface.name, z, state)} />
                    <button class="btn btn-sm btn-outline" style="margin-left:8px"
                        onClick=${() => cfgModalFn(iface)}>Config</button>
                </td>
            </tr>`
        );

        return [
            PageHeader({ title: 'Interfaces', subtitle: 'Network interface management' }),
            Table({
                columns: ['Name', 'MAC', 'IPs', 'State', 'Zone / Actions'],
                rows,
                emptyText: 'No interfaces found',
            }),
        ];
    },
});