feat(devices): lan_devices repo (upsert/absent/prune/promote)

lib/db/repos/lan_devices.js

@@ -0,0 +1,73 @@
+import { pool } from '../pool.js';
+
+const COLS = 'mac, ip, vendor, name, grp, note, status, randomized, flagged, first_seen, last_seen, present';
+
+export async function listKnown() {
+  const { rows } = await pool.query(
+    `SELECT ${COLS} FROM lan_devices WHERE status='known' ORDER BY grp, name NULLS LAST, ip`);
+  return rows;
+}
+
+export async function listDiscovered() {
+  const { rows } = await pool.query(
+    `SELECT ${COLS} FROM lan_devices WHERE status='new' ORDER BY last_seen DESC`);
+  return rows;
+}
+
+export async function get(mac) {
+  const { rows: [r] } = await pool.query(`SELECT ${COLS} FROM lan_devices WHERE mac=$1`, [mac]);
+  return r || null;
+}
+
+// Insert unseen MACs as status='new'; for existing, refresh ip/vendor/last_seen/present
+// WITHOUT touching owner-curated name/grp/status/flagged.
+export async function upsertScan(rows) {
+  for (const r of rows) {
+    await pool.query(
+      `INSERT INTO lan_devices (mac, ip, vendor, randomized, status, present, first_seen, last_seen)
+       VALUES ($1,$2,$3,$4,'new',true,now(),now())
+       ON CONFLICT (mac) DO UPDATE SET
+         ip = EXCLUDED.ip,
+         vendor = COALESCE(NULLIF(EXCLUDED.vendor,''), lan_devices.vendor),
+         last_seen = now(), present = true`,
+      [r.mac, r.ip ?? null, r.vendor ?? null, !!r.randomized]);
+  }
+  return rows.length;
+}
+
+// Mark devices not in the latest scan as absent. Empty input is a no-op so a
+// failed/empty scan can never blanket-mark everything offline.
+export async function markAbsent(seenMacs) {
+  if (!seenMacs || !seenMacs.length) return 0;
+  const { rowCount } = await pool.query(
+    `UPDATE lan_devices SET present=false WHERE present=true AND NOT (mac = ANY($1::text[]))`,
+    [seenMacs]);
+  return rowCount;
+}
+
+// Reap unreviewed + absent rows past their TTL. Never touches known/ignored.
+export async function prune() {
+  const { rowCount } = await pool.query(
+    `DELETE FROM lan_devices WHERE status='new' AND present=false AND (
+        (randomized AND last_seen < now() - interval '24 hours') OR
+        (NOT randomized AND last_seen < now() - interval '14 days'))`);
+  return rowCount;
+}
+
+const PATCHABLE = ['name', 'grp', 'note', 'status', 'flagged'];
+export async function update(mac, patch) {
+  const sets = [], vals = [];
+  for (const k of PATCHABLE) {
+    if (patch[k] !== undefined) { vals.push(patch[k]); sets.push(`${k}=$${vals.length}`); }
+  }
+  if (!sets.length) return get(mac);
+  vals.push(mac);
+  const { rows: [r] } = await pool.query(
+    `UPDATE lan_devices SET ${sets.join(', ')} WHERE mac=$${vals.length} RETURNING ${COLS}`, vals);
+  return r || null;
+}
+
+export async function remove(mac) {
+  const { rowCount } = await pool.query(`DELETE FROM lan_devices WHERE mac=$1`, [mac]);
+  return rowCount > 0;
+}