import { Logger, Plugin } from 'vite';
export interface MkcertPluginOptions {
    /** Directory containing `localhost.pem` and `localhost-key.pem`. */
    certDir?: string;
}
export interface ResolveServerHttpsConfigResult {
    serverHttps: {
        cert: string | Buffer;
        key: string | Buffer;
    };
    message: string[];
    source: 'mkcert' | 'self-signed';
}
/**
 * Resolve the Vite `server.https` config for local dev, plus a user-facing
 * message describing which cert source was used. Exported so callers (and
 * tests) can exercise the underlying logic without a fake Vite plugin
 * context.
 */
export declare function resolveServerHttpsConfig(certDir: string): Promise<ResolveServerHttpsConfigResult>;
export declare function formatBanner(lines: string[]): string[];
/**
 * Print the certificate-source banner via the supplied logger, but only the
 * first time it is called in a Node process. Exported so tests can exercise
 * the banner pipeline without having to fake a full `ResolvedConfig`.
 */
export declare function emitBannerOnce(logger: Logger, message: string[]): void;
export declare function mkcertPlugin({ certDir, }?: MkcertPluginOptions): Plugin;