/**
 * One agent conversation, shared by the Stream and the operator dashboard's drawer
 * (operator-console/AC-47..AC-50, operator-console/AC-52, operator-console/AC-53,
 * operator-console/AC-55).
 *
 * Moved out of `session.ts` so both consoles run one copy of the turn loop (design
 * D-4). What a console shows and how it asks are its own: the loop reaches the
 * screen only through `ConversationIO`.
 *
 * @module
 */
import { type Denial, type Harness, type PendingOutput } from './harness.js';
export interface TurnProcess {
    /** `missing`: the program could not start. `interrupted`: Ctrl-C stopped it. */
    done: Promise<{
        code: number | null;
        missing: boolean;
        interrupted: boolean;
    }>;
    /**
     * Stop the turn as Ctrl-C would. The dashboard needs it: in raw mode Ctrl-C is a
     * key, and no SIGINT reaches the turn's own listener (operator-console/AC-52).
     */
    stop(): void;
}
export interface ConversationIO {
    say(line: string): void;
    /** Whether the user allows a refused tool for the session (operator-console/AC-48). */
    ask(d: Denial): Promise<boolean>;
    spawn(argv: string[], stdin: string, onLine: (line: string) => void, onErr: (line: string) => void): TurnProcess;
}
export type SendResult = 'done' | 'missing' | 'stopped';
export declare class Conversation {
    harness: Harness;
    session: string | null;
    allowed: string[];
    /** Output of commands and shell lines run since the last message (operator-console/AC-49). */
    pending: PendingOutput[];
    costUsd: number;
    tokens: number;
    constructor(harness: Harness);
    /**
     * One message, and the turns that follow it while the user keeps allowing refused
     * tools. `missing` when the harness's program could not start, `stopped` when the
     * turn was interrupted.
     */
    send(text: string, io: ConversationIO): Promise<SendResult>;
    /** Forget the session and what was allowed in it; queued output is dropped too. */
    newSession(): void;
    /** A different harness always starts a new session (operator-console/AC-50). */
    switchTo(h: Harness): void;
}
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