syntax = "proto3";

package chatto.realtime.v1;

// A public role was created. Read its current metadata with RoleService.
message RoleCreatedEvent {
  // Stable role name.
  string role_name = 1;
}

// Public role metadata changed. Read its current metadata with RoleService.
// This event does not change permission decisions.
message RoleUpdatedEvent {
  // Stable role name.
  string role_name = 1;
}

// A role was deleted. Remove it from role catalogues and member role lists.
// Clients retaining this role for their viewer must discard private cached
// data and load current authorized state before displaying it again.
message RoleDeletedEvent {
  // Stable name of the deleted role.
  string role_name = 1;
}

// Custom roles changed display order. Permission decisions are unchanged.
message RolesReorderedEvent {
  // Custom role names in ascending display position.
  repeated string role_names = 1;
}

// A user was assigned a role. The named user's clients must discard private
// cached data and load current authorized state. Other viewers update member
// role lists without a full reload.
message RoleAssignedEvent {
  // User whose assignment changed.
  string user_id = 1;
  // Stable role name.
  string role_name = 2;
}

// A user's role assignment was removed. The named user's clients must discard
// private cached data and load current authorized state.
message RoleRevokedEvent {
  // User whose assignment changed.
  string user_id = 1;
  // Stable role name.
  string role_name = 2;
}

// A role's permission decisions changed. Clients whose viewer has this role
// must discard private cached data and load current authorized state. The
// implicit everyone role applies to every viewer. Private scopes and permission
// decisions are not included. Read current decisions through authorized APIs.
message RolePermissionsChangedEvent {
  // Stable role name.
  string role_name = 1;
}

// The authenticated viewer's permission decisions may have changed. This also
// covers changes to a bot's owner permission ceiling. Delivered only to the
// affected viewer. Discard private cached data and load current authorized
// state before displaying it again. The connection itself remains open.
message ViewerPermissionsChangedEvent {}

import "chatto/api/v1/common.proto";
import "chatto/api/v1/presence.proto";
import "chatto/api/v1/rooms.proto";

// RoomCreatedEvent reports a new room that is visible to the caller.
message RoomCreatedEvent {
  string room_id = 1;
  string name = 2;
  string description = 3;
  chatto.api.v1.RoomKind kind = 4;
  bool universal = 5;
  chatto.api.v1.RoomThreadingMode threading_mode = 6;
}

// RoomUpdatedEvent reports changed room metadata.
message RoomUpdatedEvent {
  string room_id = 1;
  string name = 2;
  string description = 3;
}

// RoomDeletedEvent reports a deleted room.
message RoomDeletedEvent {
  string room_id = 1;
}

// RoomArchivedEvent reports a room that became archived.
message RoomArchivedEvent {
  string room_id = 1;
}

// RoomUnarchivedEvent reports a room that became active again.
message RoomUnarchivedEvent {
  string room_id = 1;
}

// RoomUniversalChangedEvent reports the current universal-membership setting.
message RoomUniversalChangedEvent {
  string room_id = 1;
  bool universal = 2;
}

// RoomSlowModeChangedEvent reports the current slow-mode interval.
message RoomSlowModeChangedEvent {
  string room_id = 1;
  uint32 slow_mode_seconds = 2;
}

// RoomThreadingModeChangedEvent reports the current room threading policy.
message RoomThreadingModeChangedEvent {
  string room_id = 1;
  chatto.api.v1.RoomThreadingMode threading_mode = 2;
}

// UserJoinedRoomEvent reports that the actor joined a room.
message UserJoinedRoomEvent {
  string room_id = 1;
}

// UserLeftRoomEvent reports that the actor left a room.
message UserLeftRoomEvent {
  string room_id = 1;
}

// VoiceCallParticipantJoinedEvent reports that the actor joined a call session.
message VoiceCallParticipantJoinedEvent {
  string room_id = 1;
  string call_id = 2;
}

// VoiceCallParticipantLeftEvent reports that the actor left a call session.
message VoiceCallParticipantLeftEvent {
  string room_id = 1;
  string call_id = 2;
}

// VoiceCallStartedEvent reports a new call session.
message VoiceCallStartedEvent {
  string room_id = 1;
  string call_id = 2;
}

// VoiceCallEndedEvent reports the end of a call session.
message VoiceCallEndedEvent {
  string room_id = 1;
  string call_id = 2;
}

// MessagePostedEvent reports a new room message.
message MessagePostedEvent {
  string room_id = 1;
  string in_reply_to = 2;
  // Root message ID for a thread reply. Empty for a room-level message.
  string thread_root_event_id = 3;
  reserved 4;
  reserved "mentioned_user_ids";
  string echo_of_event_id = 5;
  string echo_from_thread_root_event_id = 6;
  // Distinct mention targets, without expanded role or broadcast recipients.
  repeated MessageMention mentions = 7;
  // Plaintext message text. The field is absent after key shredding.
  optional string body_plaintext = 8;
  // Immutable room kind. Direct messages do not require a mention to address a bot.
  chatto.api.v1.RoomKind room_kind = 9;
}

// DirectUserMention identifies a direct user mention.
message DirectUserMention {
  string user_id = 1;
}

// RoleMessageMention identifies the role that caused a mention.
message RoleMessageMention {
  string role_name = 1;
}

// HereMessageMention identifies a presence-scoped mention.
message HereMessageMention {}

// AllMessageMention identifies a room-wide mention.
message AllMessageMention {}

// MessageMention identifies one distinct mention target. Role, here, and all
// targets occur once, regardless of the number of recipients. Targets with no
// resolved recipients are omitted. Recipient decisions are from message creation,
// including during replay; clients must not infer them from current membership.
message MessageMention {
  reserved 1;
  reserved "user_id";
  oneof cause {
    DirectUserMention direct = 2;
    RoleMessageMention role = 3;
    HereMessageMention here = 4;
    AllMessageMention all = 5;
  }
  // True if this target included the authenticated caller when the message was posted.
  bool includes_viewer = 6;
}

// MessageEditedEvent reports changed message content or metadata.
message MessageEditedEvent {
  string room_id = 1;
  string message_event_id = 2;
}

// MessageRetractedEvent reports a retracted message.
message MessageRetractedEvent {
  string room_id = 1;
  string message_event_id = 2;
}

// MessagePinnedEvent reports a newly pinned message.
message MessagePinnedEvent {
  string room_id = 1;
  string message_event_id = 2;
}

// MessageUnpinnedEvent reports a message that is no longer pinned.
message MessageUnpinnedEvent {
  string room_id = 1;
  string message_event_id = 2;
}

// ThreadCreatedEvent reports a new message thread.
message ThreadCreatedEvent {
  string room_id = 1;
  string thread_root_event_id = 2;
}

// AssetProcessingStartedEvent reports that message-asset processing started.
message AssetProcessingStartedEvent {
  string asset_id = 1;
  string message_event_id = 2;
  // Room containing the affected message.
  string room_id = 3;
}

// AssetProcessingSucceededEvent reports successful message-asset processing.
// Read the message resource for current attachments and processed video data.
message AssetProcessingSucceededEvent {
  string asset_id = 1;
  reserved 2;
  reserved "video";
  string message_event_id = 3;
  // Room containing the affected message.
  string room_id = 4;
}

// AssetProcessingFailureCode identifies a stable processing failure class.
enum AssetProcessingFailureCode {
  // The failure class is not known.
  ASSET_PROCESSING_FAILURE_CODE_UNSPECIFIED = 0;
  // Asset processing failed without a more specific public reason.
  ASSET_PROCESSING_FAILURE_CODE_PROCESSING_FAILED = 1;
  // The source asset was not available.
  ASSET_PROCESSING_FAILURE_CODE_SOURCE_MISSING = 2;
}

// AssetProcessingFailedEvent reports failed message-asset processing.
message AssetProcessingFailedEvent {
  string asset_id = 1;
  AssetProcessingFailureCode failure_code = 2;
  string message_event_id = 3;
  // Room containing the affected message.
  string room_id = 4;
}

// AssetDeletedEvent reports a deleted asset.
message AssetDeletedEvent {
  string asset_id = 1;
  // Room containing the affected message.
  string room_id = 2;
  // Message that owns the asset, including a deleted derivative asset.
  string message_event_id = 3;
}

// ServerMotdChangedEvent reports the current message of the day.
message ServerMotdChangedEvent {
  string motd = 1;
}

// UserAccountCreatedEvent reports a new public user account.
message UserAccountCreatedEvent {
  string user_id = 1;
  bool is_bot = 2;
}

// UserAccountDeletedEvent reports a deleted user account.
message UserAccountDeletedEvent {
  string user_id = 1;
}

// ReactionAddedEvent reports a new message reaction.
message ReactionAddedEvent {
  string room_id = 1;
  string message_event_id = 2;
  string emoji = 3;
}

// ReactionRemovedEvent reports a removed message reaction.
message ReactionRemovedEvent {
  string room_id = 1;
  string message_event_id = 2;
  string emoji = 3;
}

// RoomLayoutChangedEvent reports a change to room groups, their entries, or order.
// Refresh RoomDirectoryService.ListRoomGroups with this event's cursor as the
// minimum boundary. The event contains no room IDs or other hidden layout data.
message RoomLayoutChangedEvent {}

// UserProfileChangedEvent reports that the current public user resource changed.
// Read the user through UserService with this event's resume cursor as the
// minimum boundary.
message UserProfileChangedEvent {
  string user_id = 1;
}

// ViewerPreferencesChangedEvent reports that the caller's private user
// preferences changed. Read ViewerService with this event's resume cursor as
// the minimum boundary.
message ViewerPreferencesChangedEvent {}

// ThreadViewerStateChangedEvent reports the caller's current thread state.
message ThreadViewerStateChangedEvent {
  string room_id = 1;
  string thread_root_event_id = 2;
  bool is_following = 3;
}

// ServerProfileChangedEvent reports that the public server profile changed.
// Read ServerService with this event's resume cursor as the minimum boundary.
message ServerProfileChangedEvent {}

// UserTypingEvent reports current typing activity for the event actor.
// Track each actor separately for each room and thread. Clear the indicator
// 6 seconds after the last received typing event, or when that actor posts
// a message in the same room or thread. No stop-typing event is sent.
message UserTypingEvent {
  string room_id = 1;
  optional string thread_root_event_id = 2;
}

// PresenceChangedEvent reports the actor's current presence.
message PresenceChangedEvent {
  chatto.api.v1.PresenceStatus status = 1;
}

// Delivered only to the account whose private availability choice changed.
// Refetch MyAccountService.GetPresencePreference to obtain the current choice.
message ViewerPresencePreferenceChangedEvent {}

// NotificationOccurrencesChangedEvent reports that the caller's current
// notification occurrences changed and requests an authoritative resource read.
message NotificationOccurrencesChangedEvent {
  // ID of a newly created notification, including read notifications and
  // creations during Do Not Disturb. Absent for updates and removals.
  // This is a best-effort live hint, not a sound instruction or durable delivery.
  // Clients decide whether to alert after they read current notification state.
  optional string created_notification_id = 1;
}

// NotificationUnreadStateChangedEvent reports that the caller's notification
// unread state changed and requests authoritative notification and room reads.
message NotificationUnreadStateChangedEvent {
  string room_id = 1;
  // Event ID of the affected thread root, or empty for room state.
  string thread_root_event_id = 2;
}

// RoomReadStateChangedEvent reports the caller's current room read state.
message RoomReadStateChangedEvent {
  string room_id = 1;
}