import type { JobStateName, JobStatus, WaitingFor } from "./protocol.js";
import { type ProfileTerm } from "./profiles.js";
export interface TermSignals {
    /** OSC 0 / OSC 2: the window title the agent set. */
    title?: string;
    /** OSC 9 or OSC 777 notify: the last notification and when it came. */
    notify?: {
        text: string;
        at: number;
    };
    /** The last BEL. */
    bellAt?: number;
    /** OSC 133: A/B (a prompt is shown) idle, C (a command runs) busy, D done → idle. */
    prompt?: "idle" | "busy";
    promptAt?: number;
    /** On the alternate screen (a full-screen TUI): its last line is not a result. */
    alt: boolean;
    /** The screen's text last changed then. */
    changedAt: number;
    at: number;
}
/** The part of xterm's Terminal the collector uses (headless or a fake in tests). */
export interface TermLike {
    parser: {
        registerOscHandler(ident: number, cb: (data: string) => boolean): unknown;
    };
    onBell(cb: () => void): unknown;
    buffer: {
        active: {
            type: string;
        };
    };
}
/**
 * Collects the signals. `changed` is called when something a reader cares about moved;
 * the host then writes the file (screen changes come in through `screen`).
 */
export declare class TermSignalCollector {
    private s;
    private hash;
    private readonly term;
    private readonly changed;
    constructor(term: TermLike, changed: () => void, now?: number);
    private note;
    /** The screen's text now: a change moves changedAt. True when it changed. */
    screen(text: string, now?: number): boolean;
    signals(now?: number): TermSignals;
}
export declare function readTermSignals(file: string): TermSignals | undefined;
export interface TermVerdict {
    state: Extract<JobStateName, "working" | "blocked" | "done">;
    status: JobStatus;
    waitingFor: WaitingFor;
    summary: string | null;
    question: string | null;
    /** Quiet enough for typing a task in. */
    quiet: boolean;
}
/** The last non-empty line of a screen. */
export declare function lastLine(screen: string): string | undefined;
/**
 * The row of a level 0 agent, from the strongest signal down (the process's exit is the
 * daemon's, before this): the profile's regexes, OSC 133 marks, a notification or bell
 * since the last input, then the screen settling. `inputAt` is when roost last typed into
 * it (a reply or the task); `typed` whether anything was ever given to it.
 */
export declare function inferTermState(sig: TermSignals | undefined, screen: string, term: ProfileTerm, o: {
    now: number;
    inputAt: number;
    typed: boolean;
}): TermVerdict;