/**
 * Abstract event emitter interface for communication services.
 *
 * This interface decouples communication services from any specific
 * transport mechanism (WebSocket, EventSource, polling, etc.).
 * brightchain-api-lib provides a WebSocket-based implementation;
 * brightchain-react (or other clients) can supply browser-compatible ones.
 *
 * Requirements: 12.1, 12.2
 */
import { CommunicationEventType, PresenceStatus } from '../../enumerations/communication';
import { CommunicationContextType } from '../communicationEvents';
/**
 * Platform-agnostic event emitter for communication events.
 * Each method corresponds to a specific event type broadcast
 * by the communication services (conversation, group, channel).
 */
export interface ICommunicationEventEmitter {
    /** Emit when a new message is sent in a context. */
    emitMessageSent(contextType: CommunicationContextType, contextId: string, messageId: string, senderId: string): void;
    /** Emit when a message is deleted. */
    emitMessageDeleted(contextType: CommunicationContextType, contextId: string, messageId: string, deletedBy: string): void;
    /** Emit when a message is edited. */
    emitMessageEdited(contextType: CommunicationContextType, contextId: string, messageId: string, memberId: string): void;
    /** Emit a typing indicator event (start or stop). */
    emitTypingEvent(eventType: CommunicationEventType.TYPING_START | CommunicationEventType.TYPING_STOP, contextType: CommunicationContextType, contextId: string, memberId: string): void;
    /** Emit when a member's presence status changes. */
    emitPresenceChanged(contextType: CommunicationContextType, contextId: string, memberId: string, status: PresenceStatus): void;
    /** Emit when a reaction is added or removed on a message. */
    emitReactionEvent(eventType: CommunicationEventType.REACTION_ADDED | CommunicationEventType.REACTION_REMOVED, contextType: CommunicationContextType, contextId: string, messageId: string, memberId: string, emoji: string, reactionId: string): void;
    /** Emit when a message is pinned or unpinned. */
    emitMessagePinEvent(eventType: CommunicationEventType.MESSAGE_PINNED | CommunicationEventType.MESSAGE_UNPINNED, contextType: CommunicationContextType, contextId: string, messageId: string, memberId: string): void;
    /** Emit when a member joins a group or channel. */
    emitMemberJoined(contextType: CommunicationContextType, contextId: string, memberId: string): void;
    /** Emit when a member leaves a group or channel. */
    emitMemberLeft(contextType: CommunicationContextType, contextId: string, memberId: string): void;
    /** Emit when a member is kicked from a group or channel. */
    emitMemberKicked(contextType: CommunicationContextType, contextId: string, memberId: string, kickedBy: string): void;
    /** Emit when a member is muted in a group or channel. */
    emitMemberMuted(contextType: CommunicationContextType, contextId: string, memberId: string, mutedBy: string, durationMs: number): void;
    /** Emit when a new group is created. */
    emitGroupCreated(contextId: string, groupId: string, creatorId: string, memberIds: string[]): void;
    /** Emit when a channel is updated (visibility, topic, name). */
    emitChannelUpdated(contextId: string, channelId: string, updatedBy: string): void;
    /** Emit when a member is removed from a server. */
    emitServerMemberRemoved(serverId: string, memberId: string): void;
    /** Emit when a channel is created within a server. */
    emitServerChannelCreated(serverId: string, channelId: string, channelName: string, categoryId: string): void;
    /** Emit when a channel is deleted from a server. */
    emitServerChannelDeleted(serverId: string, channelId: string): void;
}
/**
 * No-op event emitter for contexts where real-time events are not needed
 * (e.g., unit tests, CLI tools, or browser clients without live transport).
 */
export declare class NullEventEmitter implements ICommunicationEventEmitter {
    emitMessageSent(): void;
    emitMessageDeleted(): void;
    emitMessageEdited(): void;
    emitTypingEvent(): void;
    emitPresenceChanged(): void;
    emitReactionEvent(): void;
    emitMessagePinEvent(): void;
    emitMemberJoined(): void;
    emitMemberLeft(): void;
    emitMemberKicked(): void;
    emitMemberMuted(): void;
    emitGroupCreated(): void;
    emitChannelUpdated(): void;
    emitServerMemberRemoved(): void;
    emitServerChannelCreated(): void;
    emitServerChannelDeleted(): void;
}
//# sourceMappingURL=communicationEventEmitter.d.ts.map