Close stale notifications once the item is dealt with

mac/Sources/Byre/Notifications.swift

@@ -59,6 +59,18 @@ private func itemText(_ item: InboxItem) -> String {
     }
 }
 
+@MainActor
+private var queue: Task<Void, Never>?
+
+@MainActor
+private func enqueue(_ op: @escaping @MainActor () async -> Void) {
+    let prev = queue
+    queue = Task {
+        await prev?.value
+        await op()
+    }
+}
+
 @MainActor
 private func show(_ store: Store, _ taskId: String, _ tag: String, _ text: String) {
     let line = trimmed(text).split(separator: "\n", omittingEmptySubsequences: false).first.map(String.init) ?? ""
@@ -68,7 +80,7 @@ private func show(_ store: Store, _ taskId: String, _ tag: String, _ text: Strin
     content.sound = .default
     content.userInfo = ["task_id": taskId]
     let request = UNNotificationRequest(identifier: tag, content: content, trigger: nil)
-    Task {
+    enqueue {
         let status = await UNUserNotificationCenter.current().notificationSettings().authorizationStatus
         if status != .authorized && status != .provisional {
             return
@@ -89,6 +101,29 @@ func notifyInbox(_ store: Store, _ item: InboxItem) {
     show(store, item.taskId, item.id, itemText(item))
 }
 
+@MainActor
+func clearInbox(_ item: InboxItem) {
+    if item.state == .open {
+        return
+    }
+    enqueue {
+        UNUserNotificationCenter.current().removeDeliveredNotifications(withIdentifiers: [item.id])
+    }
+}
+
+@MainActor
+func clearTurns(_ taskId: String, through seq: Int64) {
+    enqueue {
+        let ids = await UNUserNotificationCenter.current().deliveredNotifications().map(\.request).filter { r in
+            guard r.content.userInfo["task_id"] as? String == taskId, r.identifier.hasPrefix("turn-"), let s = Int64(r.identifier.dropFirst(5)) else {
+                return false
+            }
+            return s <= seq
+        }.map(\.identifier)
+        UNUserNotificationCenter.current().removeDeliveredNotifications(withIdentifiers: ids)
+    }
+}
+
 @MainActor
 func notifyTurn(_ store: Store, _ ev: ByreEvent) {
     guard let me = store.me, me.notificationPrefs.reports, ev.payload.value["summary"] as? Bool == true, let taskId = ev.taskId, !taskId.isEmpty else {