import type { EngineTerminalControl } from "./protocol.ts";
/**
 * Host-side terminal-mode arbiter for remote custom components.
 *
 * Remote components (running in the engine child) cannot touch the host TTY —
 * their stdout is the JSONL transport, not a terminal. Instead they send a
 * typed autowrap intent; this controller owns the concrete escape sequences
 * and applies them to the real host terminal associated with the mounted
 * component. Never a raw byte channel: only the allowlisted mode below can
 * reach the terminal.
 *
 * Guarantees:
 *  - Controls that arrive before the component mounts are buffered and flushed
 *    on mount.
 *  - In fullscreen, `TuiAltScreen` owns autowrap itself. Remote intents remain
 *    tracked but never write over that baseline; switching back to regular mode
 *    reapplies the active intent.
 *  - A component's autowrap state is restored when it unmounts, or when the
 *    whole controller resets (engine crash / restart / generation replacement /
 *    host shutdown).
 *  - State is component-scoped: a stale child cannot reset or alter a mode
 *    owned by the currently mounted component.
 */
export declare const HOST_TERMINAL_AUTOWRAP_ON = "\u001B[?7h";
export declare const HOST_TERMINAL_AUTOWRAP_OFF = "\u001B[?7l";
export interface HostTerminalWriter {
    write(data: string): void;
}
export declare class TerminalModeController {
    private readonly isFullscreen;
    private readonly components;
    constructor(isFullscreen: () => boolean);
    /** Apply (or buffer) a typed control for a component. */
    applyControl(componentId: string, control: EngineTerminalControl): void;
    /** Register the host terminal for a component and flush buffered controls. */
    onMount(componentId: string, terminal: HostTerminalWriter): void;
    /** Reset and forget a single component's terminal modes. */
    onUnmount(componentId: string): void;
    /** Reset every component (engine crash/restart/generation swap/shutdown). */
    resetAll(): void;
    /** Reapply active controls after the host renderer changes mode. */
    rebindTui(): void;
    private ensure;
    private write;
    private writeAutowrap;
    private hasAutowrapDisabledControl;
    private firstTerminal;
    private reset;
}
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