1 files changed, 71 insertions, 0 deletions
diff --git a/Utilities/LibMatrix.Utilities.Bot/Interfaces/RoomInviteContext.cs b/Utilities/LibMatrix.Utilities.Bot/Interfaces/RoomInviteContext.cs
new file mode 100644
index 0000000..380c1c7
--- /dev/null
+++ b/Utilities/LibMatrix.Utilities.Bot/Interfaces/RoomInviteContext.cs
@@ -0,0 +1,71 @@
+using LibMatrix.EventTypes.Spec.State.RoomInfo;
+using LibMatrix.Homeservers;
+using LibMatrix.Responses;
+
+namespace LibMatrix.Utilities.Bot.Interfaces;
+
+public class RoomInviteContext {
+ public required string RoomId { get; init; }
+ public required AuthenticatedHomeserverGeneric Homeserver { get; init; }
+ public required StateEventResponse MemberEvent { get; init; }
+ public required SyncResponse.RoomsDataStructure.InvitedRoomDataStructure InviteData { get; init; }
+
+ public async Task<string> TryGetInviterNameAsync() {
+ var name = InviteData.InviteState?.Events?
+ .FirstOrDefault(evt => evt is { Type: RoomMemberEventContent.EventId } && evt.StateKey == MemberEvent.Sender)?
+ .ContentAs<RoomMemberEventContent>()?.DisplayName;
+
+ if (!string.IsNullOrWhiteSpace(name))
+ return name;
+
+ try {
+ await Homeserver.GetProfileAsync(MemberEvent.Sender!);
+ }
+ catch {
+ //ignored
+ }
+
+ return MemberEvent.Sender!;
+ }
+
+ public async Task<string> TryGetRoomNameAsync() {
+ // try to get room name from invite state
+ var name = InviteData.InviteState?.Events?
+ .FirstOrDefault(evt => evt is { Type: RoomNameEventContent.EventId, StateKey: "" })?
+ .ContentAs<RoomNameEventContent>()?.Name;
+
+ if (!string.IsNullOrWhiteSpace(name))
+ return name;
+
+ // try to get room alias
+ var alias = InviteData.InviteState?.Events?
+ .FirstOrDefault(evt => evt is { Type: RoomCanonicalAliasEventContent.EventId, StateKey: "" })?
+ .ContentAs<RoomCanonicalAliasEventContent>()?.Alias;
+
+ if (!string.IsNullOrWhiteSpace(alias))
+ return alias;
+
+ // try to get room name via public previews
+ try {
+ name = await Homeserver.GetRoom(RoomId).GetNameOrFallbackAsync();
+ if (name != RoomId && !string.IsNullOrWhiteSpace(name))
+ return name;
+ }
+ catch {
+ //ignored
+ }
+
+ // fallback to room alias via public previews
+ try {
+ alias = (await Homeserver.GetRoom(RoomId).GetCanonicalAliasAsync())?.Alias;
+ if (!string.IsNullOrWhiteSpace(alias))
+ return alias;
+ }
+ catch {
+ //ignored
+ }
+
+ // fall back to room ID
+ return RoomId;
+ }
+}
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