import * as Effect from "effect/Effect";
import * as Layer from "effect/Layer";
import * as ServiceMap from "effect/Context";
import * as Stream from "effect/Stream";
import type { TerminalSize } from "./scene.js";
declare const CredentialDeliveryFailed_base: new <A extends Record<string, any> = {}>(args: import("effect/Types").VoidIfEmpty<{ readonly [P in keyof A as P extends "_tag" ? never : P]: A[P]; }>) => import("effect/Cause").YieldableError & {
    readonly _tag: "CredentialDeliveryFailed";
} & Readonly<A>;
export declare class CredentialDeliveryFailed extends CredentialDeliveryFailed_base<{
    readonly cause: unknown;
}> {
}
export interface OutputStreamFacts extends TerminalSize {
    readonly stdoutIsTTY: boolean;
    readonly stderrIsTTY: boolean;
}
declare const OutputStreams_base: ServiceMap.ServiceClass<OutputStreams, "axm.sh/screen/OutputStreams", {
    readonly stdout: (content: string) => Effect.Effect<void>;
    readonly stderr: (content: string) => Effect.Effect<void>;
    /** Write a credential and acknowledge the stream callback before succeeding. */
    readonly credential: (content: string) => Effect.Effect<void, CredentialDeliveryFailed>;
    readonly facts: Effect.Effect<OutputStreamFacts>;
    readonly resize: Stream.Stream<number>;
}>;
export declare class OutputStreams extends OutputStreams_base {
}
export declare const OutputStreamsLive: Layer.Layer<OutputStreams>;
/** Pre-runtime TTY fact for startup policy without exposing Node streams. */
export declare const stderrIsTTY: () => boolean;
export interface TestOutputStreamsState {
    readonly stdout: Array<string>;
    readonly stderr: Array<string>;
    /** The terminal the streams report. A test narrows it, then offers a resize. */
    size: TerminalSize;
}
export declare const makeTestOutputStreams: (options?: {
    readonly stdoutIsTTY?: boolean;
    readonly stderrIsTTY?: boolean;
    readonly columns?: number;
    readonly rows?: number;
    readonly resize?: Stream.Stream<number>;
}) => {
    readonly layer: Layer.Layer<OutputStreams>;
    readonly state: TestOutputStreamsState;
};
export {};
//# sourceMappingURL=streams.d.ts.map