diff options
Diffstat (limited to 'src/features/surface-host/logic/message-queue.ts')
| -rw-r--r-- | src/features/surface-host/logic/message-queue.ts | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/features/surface-host/logic/message-queue.ts b/src/features/surface-host/logic/message-queue.ts index 7a3653e..a49d4d0 100644 --- a/src/features/surface-host/logic/message-queue.ts +++ b/src/features/surface-host/logic/message-queue.ts @@ -1,3 +1,4 @@ +import type { SurfaceSpec } from "@dispatch/ui-contract"; import type { QueuedMessage } from "@dispatch/wire"; /** @@ -41,6 +42,15 @@ export function parseMessageQueuePayload(payload: unknown): MessageQueueData | n return { messages }; } +/** Queue size from a validated snapshot; absent/malformed data stays unknown. */ +export function messageQueueCount(spec: SurfaceSpec | null): number | undefined { + const field = spec?.fields.find( + (field) => field.kind === "custom" && field.rendererId === MESSAGE_QUEUE_RENDERER_ID, + ); + if (field?.kind !== "custom") return undefined; + return parseMessageQueuePayload(field.payload)?.messages.length; +} + /** The `rendererId` the message-queue extension's `custom` surface field uses. */ export const MESSAGE_QUEUE_RENDERER_ID = "message-queue"; |
