fix(traffic): сохранять историю и показывать достоверную свежесть

backend/src/db/schema.ts

@@ -341,6 +341,15 @@ export const uptimeSettings = pgTable("uptime_settings", {
   updatedAt:      ts("updated_at").notNull().defaultNow(),
 })
 
+export const trafficCollectionState = pgTable("traffic_collection_state", {
+  serverId: intPkRef().primaryKey().references(() => servers.id, { onDelete: "cascade" }),
+  serverUpdatedAt: ts("server_updated_at").notNull(),
+  lastAttemptAt: ts("last_attempt_at").notNull(),
+  lastSucceededAt: ts("last_succeeded_at"),
+  status: text("status").notNull(),
+  error: text("error"),
+})
+
 export const uptimeProbes = pgTable("uptime_probes", {
   id:          text("id").primaryKey(),
   srcServerId: bigint("src_server_id", { mode: "number" }).notNull()

backend/src/db/traffic-flags.test.ts

@@ -12,8 +12,10 @@ assert.equal(encodeTrafficFlags(true, true), 3)
 assert.equal(encodeTrafficFlags(false, false), 0)
 assert.equal(trafficFlagRunning(1), true)
 assert.equal(trafficFlagDisabled(1), false)
-assert.deepEqual(decodeTrafficSampleFlags(1), { running: true, disabled: false })
-assert.deepEqual(decodeTrafficSampleFlags(0), { running: false, disabled: false })
-assert.deepEqual(decodeTrafficSampleFlags(undefined), { running: false, disabled: false })
+assert.deepEqual(decodeTrafficSampleFlags(1), { running: true, disabled: false, countersKnown: false })
+assert.deepEqual(decodeTrafficSampleFlags(0), { running: false, disabled: false, countersKnown: false })
+assert.deepEqual(decodeTrafficSampleFlags(undefined), { running: false, disabled: false, countersKnown: false })
+assert.equal(encodeTrafficFlags(true,false,true),5)
+assert.deepEqual(decodeTrafficSampleFlags(5), {running:true,disabled:false,countersKnown:true})
 
 console.log("traffic-flags.test.ts: ok")

backend/src/db/traffic-flags.ts

@@ -1,8 +1,10 @@
 export const TRAFFIC_FLAG_RUNNING = 1
 export const TRAFFIC_FLAG_DISABLED = 2
+export const TRAFFIC_FLAG_COUNTERS_KNOWN = 4
 
-export function encodeTrafficFlags(running: boolean, disabled: boolean): number {
+export function encodeTrafficFlags(running: boolean, disabled: boolean, countersKnown = false): number {
   return (running ? TRAFFIC_FLAG_RUNNING : 0) | (disabled ? TRAFFIC_FLAG_DISABLED : 0)
+    | (countersKnown ? TRAFFIC_FLAG_COUNTERS_KNOWN : 0)
 }
 
 export function trafficFlagRunning(flags: number | null | undefined): boolean {
@@ -16,9 +18,11 @@ export function trafficFlagDisabled(flags: number | null | undefined): boolean {
 export function decodeTrafficSampleFlags(flags: number | null | undefined): {
   running: boolean
   disabled: boolean
+  countersKnown: boolean
 } {
   return {
     running: trafficFlagRunning(flags),
     disabled: trafficFlagDisabled(flags),
+    countersKnown: ((Number(flags) || 0) & TRAFFIC_FLAG_COUNTERS_KNOWN) !== 0,
   }
 }