/**
 * @license
 * Copyright 2025 Qwen
 * SPDX-License-Identifier: Apache-2.0
 */
import type { ToolCallConfirmationDetails, ToolConfirmationOutcome, ToolResultDisplay } from '../tools/tools.js';
import type { Part, GenerateContentResponseUsageMetadata } from '@google/genai';
export type SubAgentEvent = 'start' | 'round_start' | 'round_end' | 'stream_text' | 'tool_call' | 'tool_result' | 'tool_waiting_approval' | 'usage_metadata' | 'finish' | 'error';
export declare enum SubAgentEventType {
    START = "start",
    ROUND_START = "round_start",
    ROUND_END = "round_end",
    STREAM_TEXT = "stream_text",
    TOOL_CALL = "tool_call",
    TOOL_RESULT = "tool_result",
    TOOL_WAITING_APPROVAL = "tool_waiting_approval",
    USAGE_METADATA = "usage_metadata",
    FINISH = "finish",
    ERROR = "error"
}
export interface SubAgentStartEvent {
    subagentId: string;
    name: string;
    model?: string;
    tools: string[];
    timestamp: number;
}
export interface SubAgentRoundEvent {
    subagentId: string;
    round: number;
    promptId: string;
    timestamp: number;
}
export interface SubAgentStreamTextEvent {
    subagentId: string;
    round: number;
    text: string;
    timestamp: number;
}
export interface SubAgentUsageEvent {
    subagentId: string;
    round: number;
    usage: GenerateContentResponseUsageMetadata;
    durationMs?: number;
    timestamp: number;
}
export interface SubAgentToolCallEvent {
    subagentId: string;
    round: number;
    callId: string;
    name: string;
    args: Record<string, unknown>;
    description: string;
    timestamp: number;
}
export interface SubAgentToolResultEvent {
    subagentId: string;
    round: number;
    callId: string;
    name: string;
    success: boolean;
    error?: string;
    responseParts?: Part[];
    resultDisplay?: ToolResultDisplay;
    durationMs?: number;
    timestamp: number;
}
export interface SubAgentApprovalRequestEvent {
    subagentId: string;
    round: number;
    callId: string;
    name: string;
    description: string;
    confirmationDetails: Omit<ToolCallConfirmationDetails, 'onConfirm'> & {
        type: ToolCallConfirmationDetails['type'];
    };
    respond: (outcome: ToolConfirmationOutcome, payload?: Parameters<ToolCallConfirmationDetails['onConfirm']>[1]) => Promise<void>;
    timestamp: number;
}
export interface SubAgentFinishEvent {
    subagentId: string;
    terminateReason: string;
    timestamp: number;
    rounds?: number;
    totalDurationMs?: number;
    totalToolCalls?: number;
    successfulToolCalls?: number;
    failedToolCalls?: number;
    inputTokens?: number;
    outputTokens?: number;
    totalTokens?: number;
}
export interface SubAgentErrorEvent {
    subagentId: string;
    error: string;
    timestamp: number;
}
export declare class SubAgentEventEmitter {
    private ee;
    on(event: SubAgentEvent, listener: (...args: unknown[]) => void): void;
    off(event: SubAgentEvent, listener: (...args: unknown[]) => void): void;
    emit(event: SubAgentEvent, payload: unknown): void;
}