/**
 * Base Gateway abstract class
 *
 * Extracts common logic shared across Discord, Slack, and Telegram gateways.
 * Platform-specific behavior is implemented via abstract methods and properties.
 */
import type { Gateway, GatewayEvent, GatewayEventHandler, GatewayConfig, MessageSource } from './types.js';
import { MessageRouter } from './message-router.js';
export interface BaseGatewayOptions {
    messageRouter: MessageRouter;
    config?: Partial<GatewayConfig>;
}
export declare abstract class BaseGateway implements Gateway {
    abstract readonly source: MessageSource;
    protected messageRouter: MessageRouter;
    protected eventHandlers: GatewayEventHandler[];
    protected connected: boolean;
    constructor(options: BaseGatewayOptions);
    abstract start(): Promise<void>;
    abstract stop(): Promise<void>;
    abstract sendMessage(channelId: string, text: string): Promise<void>;
    abstract sendFile(channelId: string, filePath: string, caption?: string): Promise<void>;
    /** Regex to strip bot mentions from message text. null = no stripping. */
    protected abstract get mentionPattern(): RegExp | null;
    isConnected(): boolean;
    onEvent(handler: GatewayEventHandler): void;
    protected emitEvent(event: GatewayEvent): void;
    protected cleanMessageContent(content: string): string;
}
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