import type { CellBuffer } from "../buffer/cell-buffer.js";
import type { CapabilityProfile, KeyEvent } from "../types.js";
export interface SessionRenderContext {
    width: number;
    height: number;
    capabilities: CapabilityProfile;
    frame: number;
    now: number;
}
export interface SessionAnimationContext extends SessionRenderContext {
    stateChangedAt: number;
}
export interface SessionOptions<T> {
    title?: string;
    alternateScreen?: boolean;
    mouse?: boolean;
    initialState: T;
    animationIntervalMs?: number;
    escapeTimeoutMs?: number;
    render: (state: T, ctx: SessionRenderContext) => CellBuffer;
    handle: (state: T, event: KeyEvent, controls: SessionControls<T>) => void;
    shouldAnimate?: (state: T, ctx: SessionAnimationContext) => boolean;
}
export interface SessionControls<T> {
    setState: (updater: (state: T) => T) => void;
    resolve: (value: unknown) => void;
    reject: (err: Error) => void;
    render: () => void;
}
export declare class TuiCancelled extends Error {
    constructor(message?: string);
}
export declare function getCapabilities(): CapabilityProfile;
export declare function runSession<T, R>(options: SessionOptions<T>): Promise<R>;
export declare function onceFrame(): Promise<void>;
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