/*
 * Copyright 2008-2026 Async-IO.org
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package org.atmosphere.a2a.types;

import com.fasterxml.jackson.annotation.JsonInclude;

import java.util.Map;

/**
 * Event emitted when a task's {@link TaskStatus} changes. Rewritten in v1.0.0:
 * the redundant {@code final} flag was dropped (terminality is derivable from
 * {@link TaskState#isTerminal()}), {@code id} was split into {@code taskId} +
 * {@code contextId}, and a free-form {@code metadata} struct was added.
 */
@JsonInclude(JsonInclude.Include.NON_NULL)
public record TaskStatusUpdateEvent(
    String taskId,
    String contextId,
    TaskStatus status,
    Map<String, Object> metadata
) {
    public TaskStatusUpdateEvent {
        metadata = metadata != null ? Map.copyOf(metadata) : null;
    }

    public TaskStatusUpdateEvent(String taskId, String contextId, TaskStatus status) {
        this(taskId, contextId, status, null);
    }
}
