fix(health): разворачивать CNAME до IP в статусе таблицы

Пробы CNAME больше не ключуются hostname: цель разворачивается до origin/пула, а уже сохранённый статус по CNAME копируется на IP сервиса.

Co-authored-by: Cursor <[email protected]>

apps/api/src/services/service-config-service.ts

@@ -18,6 +18,7 @@ import {
   SYNC_PENDING_PUSH,
   SYNC_SYNCED,
   dnsRecordNamesMatch,
+  isIpLiteral,
   normalizeDnsRecordName,
 } from "@cfdm/shared";
 import type { CloudflareClient } from "../lib/cf-client.js";
@@ -344,6 +345,64 @@ async function buildView(db: Db, serviceId: number): Promise<ServiceView> {
   };
 }
 
+const HEALTH_RANK: Record<string, number> = {
+  down: 3,
+  degraded: 2,
+  unknown: 1,
+  up: 0,
+};
+
+function cnameLookupKeys(value: string, zoneName?: string | null): string[] {
+  const trimmed = value.trim();
+  if (!trimmed) return [];
+  const noDot = trimmed.replace(/\.+$/, "");
+  const lower = noDot.toLowerCase();
+  const keys = new Set([trimmed, noDot, lower]);
+  if (zoneName && !lower.includes(".")) {
+    keys.add(`${lower}.${zoneName.trim().toLowerCase().replace(/\.+$/, "")}`);
+  }
+  return [...keys];
+}
+
+type ServiceHealthRow = {
+  ip: string;
+  status: IpHealthState;
+  latency_ms: number | null;
+  last_checked_at: string | null;
+  last_error: string | null;
+  provider: ServiceView["ip_health"][number]["provider"];
+  colo: string | null;
+};
+
+/** Health rows keyed by CNAME hostname (legacy probes) applied to service IPs. */
+function fallbackCnameHealth(
+  rows: ServiceHealthRow[],
+  view: ServiceView,
+): ServiceHealthRow | undefined {
+  const cnameKeys = new Set<string>();
+  for (const domain of view.domains ?? []) {
+    const cname = domain.target_cname?.trim();
+    if (!cname) continue;
+    for (const key of cnameLookupKeys(cname, domain.zone_name)) {
+      cnameKeys.add(key);
+    }
+  }
+  const hostnameRows = rows.filter((row) => !isIpLiteral(row.ip));
+  if (hostnameRows.length === 0) return undefined;
+  const matched =
+    cnameKeys.size === 0
+      ? hostnameRows
+      : hostnameRows.filter((row) =>
+          cnameLookupKeys(row.ip).some((key) => cnameKeys.has(key)),
+        );
+  const candidates = matched.length > 0 ? matched : hostnameRows;
+  return candidates.reduce((worst, row) =>
+    (HEALTH_RANK[row.status] ?? 0) > (HEALTH_RANK[worst.status] ?? 0)
+      ? row
+      : worst,
+  );
+}
+
 function attachServiceHealth(
   db: Db,
   views: ServiceView[],
@@ -353,11 +412,16 @@ function attachServiceHealth(
   const ipHealthByService = repos.listIpHealthByServiceIds(db, ids);
   return views.map((view) => {
     const health = healthByService.get(view.id);
-    const byIp = new Map(
-      (ipHealthByService.get(view.id) ?? []).map((row) => [row.ip, row]),
+    const rows = ipHealthByService.get(view.id) ?? [];
+    const byIp = new Map(rows.map((row) => [row.ip, row]));
+    const cnameFallback = fallbackCnameHealth(rows, view);
+    const aRecordIps = new Set(
+      (view.domains ?? []).flatMap((domain) =>
+        domain.target_cname?.trim() ? [] : (domain.target_ips ?? []),
+      ),
     );
     const ip_health = (view.ips ?? []).map((ip) => {
-      const row = byIp.get(ip);
+      const row = byIp.get(ip) ?? (aRecordIps.has(ip) ? undefined : cnameFallback);
       return {
         ip,
         status: row?.status ?? ("unknown" as const),