import { RestMediaArtifact, RestBashOutputArtifact, GitPatch, ParsedChangeSet, ParsedFile } from './types.js';
import { Platform } from './platform/types.js';
/**
 * Parses a unified diff string and extracts file information.
 * @internal
 */
export declare function parseUnidiff(patch?: string | null): ParsedFile[];
/**
 * Represents a media artifact (e.g. image) produced by an activity.
 * Provides helper methods for saving and viewing the media.
 */
export declare class MediaArtifact {
    readonly type = "media";
    readonly data: string;
    readonly format: string;
    private platform;
    private activityId?;
    constructor(artifact: RestMediaArtifact['media'], platform: Platform, activityId?: string);
    /**
     * Saves the media artifact to a file.
     *
     * **Side Effects:**
     * - Node.js: Writes the file to disk (overwrites if exists).
     * - Browser: Saves the file to the 'artifacts' object store in IndexedDB.
     *
     * @param filepath The path where the file should be saved.
     */
    save(filepath: string): Promise<void>;
    /**
     * Converts the media artifact to a data URL.
     * Useful for displaying images in a browser.
     *
     * **Data Transformation:**
     * - Prefixes the base64 data with `data:<mimeType>;base64,`.
     *
     * @returns A valid Data URI string.
     */
    toUrl(): string;
}
/**
 * Represents the output of a bash command executed by the agent.
 */
export declare class BashArtifact {
    readonly type = "bashOutput";
    readonly command: string;
    readonly stdout: string;
    readonly stderr: string;
    readonly exitCode: number | null;
    constructor(artifact: RestBashOutputArtifact['bashOutput']);
    /**
     * Formats the bash output as a string, mimicking a terminal session.
     *
     * **Data Transformation:**
     * - Combines `stdout` and `stderr`.
     * - Formats the command with a `$` prompt.
     * - Appends the exit code.
     */
    toString(): string;
}
/**
 * Represents a set of code changes (unified diff) produced by an activity.
 * Provides a helper method to parse the diff into structured data.
 */
export declare class ChangeSetArtifact {
    readonly type: "changeSet";
    readonly source: string;
    readonly gitPatch: GitPatch;
    constructor(source: string, gitPatch: GitPatch);
    /**
     * Parses the unified diff and returns structured file change information.
     *
     * **Data Transformation:**
     * - Extracts file paths from diff headers.
     * - Determines change type (created/modified/deleted) from /dev/null markers.
     * - Counts additions (+) and deletions (-) in hunks.
     *
     * @returns Parsed diff with file paths, change types, and line counts.
     */
    parsed(): ParsedChangeSet;
}