namespace Aging.ResourceContracts
{
    /// <summary>IPC 消息类型常量（MVP 仅四种）。</summary>
    public static class IpcMessageTypes
    {
        public const string Hello = "Hello";                 // 握手：回 epoch/configHash
        public const string SubmitTask = "SubmitTask";       // body=DeviceOperation
        public const string CancelTask = "CancelTask";
        public const string ProbeReadback = "ProbeReadback"; // 恢复回收前的读回探测
    }

    /// <summary>请求/响应共同封套。协议版本不匹配直接拒绝连接。</summary>
    public sealed class IpcEnvelope
    {
        public int ProtocolVersion { get; set; } = 1;
        public string MessageType { get; set; } = "";
        public string RequestId { get; set; } = "";
        public string CorrelationId { get; set; } = "";
        public string ClientInstanceId { get; set; } = "";
        public string AuthorityId { get; set; } = "";
        public string ConfigHash { get; set; } = "";
        public long DeadlineUtcMs { get; set; }
        public string BodyJson { get; set; } = "{}";
    }

    public sealed class HelloResult
    {
        public long ServerEpoch { get; set; }
        public string ConfigHash { get; set; } = "";
        public int ProtocolVersion { get; set; } = 1;
        public string BrokerId { get; set; } = "";
    }
}