import type { IIoHost, IoMessage, IoMessageLevel, IoRequest } from '../api/io';
export interface NonInteractiveIoHostProps {
    /**
     * Determines the verbosity of the output.
     *
     * The IoHost will still receive all messages and requests,
     * but only the messages included in this level will be printed.
     *
     * @default 'info'
     */
    readonly logLevel?: IoMessageLevel;
    /**
     * Overrides the automatic TTY detection.
     *
     * When TTY is disabled, the CLI will have no interactions or color.
     *
     * @default - Determined from the current process
     */
    readonly isTTY?: boolean;
    /**
     * Whether the IoHost is running in CI mode.
     *
     * In CI mode, all non-error output goes to stdout instead of stderr.
     * Set to false in the IoHost constructor it will be overwritten if the CLI CI argument is passed
     *
     * @default - Determined from the environment, specifically based on `process.env.CI`
     */
    readonly isCI?: boolean;
}
/**
 * A simple IO host for a non interactive CLI that writes messages to the console and returns the default answer to all requests.
 */
export declare class NonInteractiveIoHost implements IIoHost {
    /**
     * Whether the IoHost is running in CI mode.
     *
     * In CI mode, all non-error output goes to stdout instead of stderr.
     */
    readonly isCI: boolean;
    /**
     * Whether the host can use interactions and message styling.
     */
    readonly isTTY: boolean;
    /**
     * The current threshold.
     *
     * Messages with a lower priority level will be ignored.
     */
    readonly logLevel: IoMessageLevel;
    private readonly activityPrinter;
    constructor(props?: NonInteractiveIoHostProps);
    /**
     * Notifies the host of a message.
     * The caller waits until the notification completes.
     */
    notify(msg: IoMessage<unknown>): Promise<void>;
    /**
     * Determines the output stream, based on message and configuration.
     */
    private selectStream;
    /**
     * Determines the output stream, based on message level and configuration.
     */
    private selectStreamFromLevel;
    /**
     * Notifies the host of a message that requires a response.
     *
     * If the host does not return a response the suggested
     * default response from the input message will be used.
     */
    requestResponse<DataType, ResponseType>(msg: IoRequest<DataType, ResponseType>): Promise<ResponseType>;
    /**
     * Formats a message for console output with optional color support
     */
    private formatMessage;
    /**
     * Formats date to HH:MM:SS
     */
    private formatTime;
}
//# sourceMappingURL=non-interactive-io-host.d.ts.map