import type { AgentAttachment, RealtimeEvent } from '../types';
import type { CodexEngineConfig } from 'chrome-mcp-shared';
export interface EngineInitOptions {
    sessionId: string;
    instruction: string;
    model?: string;
    projectRoot?: string;
    requestId: string;
    /**
     * AbortSignal for cancellation support.
     */
    signal?: AbortSignal;
    /**
     * Optional attachments (images/files) to include with the instruction.
     * Note: When using persisted attachments, use resolvedImagePaths instead.
     */
    attachments?: AgentAttachment[];
    /**
     * Resolved absolute paths to persisted image files.
     * These are used by engines instead of writing temp files from base64.
     * Set by chat-service after saving attachments to persistent storage.
     */
    resolvedImagePaths?: string[];
    /**
     * Optional project ID for session persistence.
     * When provided, engines can use this to save/load session state.
     */
    projectId?: string;
    /**
     * Optional database session ID (sessions.id) for session-scoped configuration and persistence.
     */
    dbSessionId?: string;
    /**
     * Optional session-scoped permission mode override (Claude SDK option).
     */
    permissionMode?: string;
    /**
     * Optional session-scoped permission bypass override (Claude SDK option).
     */
    allowDangerouslySkipPermissions?: boolean;
    /**
     * Optional session-scoped system prompt configuration.
     */
    systemPromptConfig?: unknown;
    /**
     * Optional session-scoped engine option overrides.
     */
    optionsConfig?: unknown;
    /**
     * Optional Claude session ID (UUID) for resuming a previous session.
     * Only applicable to ClaudeEngine; retrieved from sessions.engineSessionId (preferred)
     * or project's activeClaudeSessionId (legacy fallback).
     */
    resumeClaudeSessionId?: string;
    /**
     * Whether to use Claude Code Router (CCR) for this request.
     * Only applicable to ClaudeEngine; when true, CCR will be auto-detected.
     */
    useCcr?: boolean;
    /**
     * Optional Codex-specific configuration overrides.
     * Only applicable to CodexEngine; merged with DEFAULT_CODEX_CONFIG.
     */
    codexConfig?: Partial<CodexEngineConfig>;
}
/**
 * Callback to persist Claude session ID after initialization.
 */
export type ClaudeSessionPersistCallback = (sessionId: string) => Promise<void>;
/**
 * Management information extracted from Claude SDK system:init message.
 */
export interface ClaudeManagementInfo {
    tools?: string[];
    agents?: string[];
    /** Plugins with name and path (SDK returns { name, path }[]) */
    plugins?: Array<{
        name: string;
        path?: string;
    }>;
    skills?: string[];
    mcpServers?: Array<{
        name: string;
        status: string;
    }>;
    slashCommands?: string[];
    model?: string;
    permissionMode?: string;
    cwd?: string;
    outputStyle?: string;
    betas?: string[];
    claudeCodeVersion?: string;
    apiKeySource?: string;
}
/**
 * Callback to persist management information after SDK initialization.
 */
export type ManagementInfoPersistCallback = (info: ClaudeManagementInfo) => Promise<void>;
export type EngineName = 'claude' | 'codex' | 'cursor' | 'qwen' | 'glm';
export interface EngineExecutionContext {
    /**
     * Emit a realtime event to all connected clients for the current session.
     */
    emit(event: RealtimeEvent): void;
    /**
     * Optional callback to persist Claude session ID after SDK initialization.
     * Only called by ClaudeEngine when projectId is provided.
     */
    persistClaudeSessionId?: ClaudeSessionPersistCallback;
    /**
     * Optional callback to persist management information after SDK initialization.
     * Only called by ClaudeEngine when dbSessionId is provided.
     */
    persistManagementInfo?: ManagementInfoPersistCallback;
}
export interface AgentEngine {
    name: EngineName;
    /**
     * Whether this engine can act as an MCP client natively.
     */
    supportsMcp?: boolean;
    initializeAndRun(options: EngineInitOptions, ctx: EngineExecutionContext): Promise<void>;
}
/**
 * Represents a running engine execution that can be cancelled.
 */
export interface RunningExecution {
    requestId: string;
    sessionId: string;
    engineName: EngineName;
    abortController: AbortController;
    startedAt: Date;
}