@artinet/sdk/dist/services/a2a/factory/context.js

A TypeScript SDK for building collaborative AI agents.

/**
 * Copyright 2025 The Artinet Project
 * SPDX-License-Identifier: Apache-2.0
 */
/**
 * @fileoverview A2A Context Factory Functions
 *
 * This module provides factory functions for creating A2A execution contexts
 * and command channels. It handles the composition of various context components
 * including command proxies, event managers, and cancellation mechanisms.
 *
 * @module A2AContextFactory
 * @version 0.6.0-preview
 * @since 0.5.6
 * @author The Artinet Project
 */
import { createStateMachine } from "./state-machine.js";
import { v4 as uuidv4 } from "uuid";
export function createBaseContext({ contextId = uuidv4(), service, task, overrides, abortSignal = new AbortController().signal, }) {
    const isCancelled = async () => (await service.cancellations.has(task.id)) || abortSignal.aborted;
    const getState = async (args) => args ? await service.tasks.get(args) : task;
    const context = {
        contextId: contextId,
        service: service,
        publisher: createStateMachine({ contextId, service, task, overrides }),
        isCancelled,
        abortSignal: abortSignal,
        getState,
    };
    return context;
}
export function createContext({ baseContext, taskId, messenger, extensions, references, userId, }) {
    const getTask = async () => baseContext.publisher.currentTask;
    const context = {
        ...baseContext,
        taskId,
        userMessage: messenger.message,
        messages: messenger,
        getTask,
        extensions,
        references,
        userId,
    };
    return context;
}