using System.Text.Json;
// Re-export shared types from ComInterop for CLI internal use
using SharedProtocol = Sbroenne.ExcelMcp.ComInterop.ServiceClient.ServiceProtocol;
using SharedRequest = Sbroenne.ExcelMcp.ComInterop.ServiceClient.ServiceRequest;
using SharedResponse = Sbroenne.ExcelMcp.ComInterop.ServiceClient.ServiceResponse;
namespace Sbroenne.ExcelMcp.Service;
/// <summary>
/// Protocol messages for CLI-to-service communication over named pipes.
/// Pattern: CLI sends JSON request → Service executes → Returns JSON response.
/// All messages are newline-delimited JSON.
///
/// NOTE: This is a thin wrapper over the shared ComInterop.ServiceClient types
/// for backward compatibility within CLI.
/// </summary>
public static class ServiceProtocol
{
public static readonly JsonSerializerOptions JsonOptions = SharedProtocol.JsonOptions;
public static string Serialize<T>(T message) => SharedProtocol.Serialize(message);
public static T? Deserialize<T>(string json) => SharedProtocol.Deserialize<T>(json);
}
/// <summary>
/// Request sent from CLI to service.
/// </summary>
public sealed class ServiceRequest
{
/// <summary>Command to execute (e.g., "session.open", "sheet.list", "range.get-values").</summary>
public required string Command { get; init; }
/// <summary>Session ID for commands that operate on a session.</summary>
public string? SessionId { get; init; }
/// <summary>JSON-serialized command arguments.</summary>
public string? Args { get; init; }
/// <summary>Source of the request.</summary>
public string? Source { get; init; }
/// <summary>
/// Converts to shared request type for serialization.
/// </summary>
public SharedRequest ToShared() => new()
{
Command = Command,
SessionId = SessionId,
Args = Args,
Source = Source ?? "cli"
};
}
/// <summary>
/// Response sent from service to CLI.
/// </summary>
public sealed class ServiceResponse
{
/// <summary>Whether the command succeeded.</summary>
public bool Success { get; init; }
/// <summary>Error message if Success is false.</summary>
public string? ErrorMessage { get; init; }
/// <summary>JSON-serialized result data.</summary>
public string? Result { get; init; }
/// <summary>
/// Creates from shared response type.
/// </summary>
public static ServiceResponse FromShared(SharedResponse shared) => new()
{
Success = shared.Success,
ErrorMessage = shared.ErrorMessage,
Result = shared.Result
};
}
/// <summary>
/// Service status information.
/// </summary>
public sealed class ServiceStatus
{
public bool Running { get; init; }
public int ProcessId { get; init; }
public int SessionCount { get; init; }
public DateTime StartTime { get; init; }
public TimeSpan Uptime => Running ? DateTime.UtcNow - StartTime : TimeSpan.Zero;
}
