feat: import Chinese-localized Buzz source snapshot

Signed-off-by: cls_宁波本机 <908705107@qq.com>
2026-08-13 18:34:25 +08:00
parent 61c3fa1df9
commit 9dfa06ffee
3785 changed files with 1085458 additions and 2 deletions
@@ -0,0 +1,71 @@
+import '../../shared/read_state/read_state_format.dart';
+import 'inbox_item.dart';
+
+/// Resolves the effective NIP-RS read marker for one inbox row, mirroring
+/// desktop's `resolveInboxItemReadAt`:
+/// - thread rows use `max(thread:<root>, msg:<id>)`
+/// - channel rows use the channel context marker
+/// - rows with no channel have no marker (caller falls back to local state)
+int? resolveInboxItemReadAt(
+  InboxItem item, {
+  required int? Function(String contextId) markerOf,
+}) {
+  final channelId = item.item.channelId;
+  final threadRootId = item.threadRootId;
+  if (threadRootId != null) {
+    return maxReadAt([
+      markerOf(threadContextKey(threadRootId)),
+      markerOf(msgContextKey(item.item.id)),
+    ]);
+  }
+  return channelId == null ? null : markerOf(channelId);
+}
+
+/// Whether the row is read ("done"), mirroring desktop's
+/// `useHomeInboxReadState` projection: a local unread override always wins;
+/// otherwise the row is done when no grouped activity is newer than the
+/// shared read marker; channel-less rows fall back to the local done set.
+bool isInboxItemDone(
+  InboxItem item, {
+  required int? Function(String contextId) markerOf,
+  required Set<String> localUnreadOverrides,
+  required Set<String> localDoneSet,
+}) {
+  final ids = groupedInboxItemIds(item);
+  if (ids.any(localUnreadOverrides.contains)) return false;
+
+  final readAt = resolveInboxItemReadAt(item, markerOf: markerOf);
+  if (readAt != null) return item.latestActivityAt <= readAt;
+
+  if (item.threadRootId != null || item.item.channelId != null) return false;
+  return localDoneSet.contains(item.id);
+}
+
+/// All event ids identified with the row — desktop's `getGroupedInboxItemIds`.
+List<String> groupedInboxItemIds(InboxItem item) {
+  return {item.id, item.item.id, ...item.groupItems.map((i) => i.id)}.toList();
+}
+
+/// The channel-level timestamp that marking a thread row read should also
+/// advance — desktop's `getGroupedChannelReadTimestamp`. Only top-level
+/// (non-thread-reply) grouped events count, so marking a thread read cannot
+/// swallow unrelated channel messages.
+({String channelId, int timestamp})? groupedChannelReadTimestamp(
+  InboxItem item,
+) {
+  final channelId = item.item.channelId;
+  if (channelId == null) return null;
+
+  int? timestamp;
+  for (final groupItem in item.groupItems) {
+    if (groupItem.channelId != channelId || isThreadReply(groupItem.tags)) {
+      continue;
+    }
+    if (timestamp == null || groupItem.createdAt > timestamp) {
+      timestamp = groupItem.createdAt;
+    }
+  }
+  return timestamp == null
+      ? null
+      : (channelId: channelId, timestamp: timestamp);
+}