using Pilz.Extensions;
using Pilz.Extensions.Reflection;
using Pilz.Net.Api.Messages;
using System.Diagnostics;
using System.Reflection;

namespace Pilz.Net.Api.Server;

public class ServerStatusHandler(IApiServer server) : IApiHandlerInitializer
{
    public string Route { get; set; } = "/status";

    public virtual void Initialize()
    {
        server.RegisterHandler(GetType().GetMethod(nameof(GetStatus))!.CreateDelegate(this), new(Route, "GET"), Debugger.IsAttached);
    }

    public virtual ApiResult GetStatus(ApiRequestInfo req)
    {
        var msg = BuildMessage(req);

        if (server is ApiServer apiServer && msg is ServerStatusMessage message)
        {
            message.AppVersion ??= Assembly.GetEntryAssembly()?.GetAppVersion();
            message.ApiVersion = apiServer.ApiVersion;
            message.EndpointsCount = apiServer.HandlersCount;
            message.DataManagersCount = apiServer.ManagersCount;
            message.RestartAttempts = apiServer.RestartAttempts;
        }

        return ApiResult.Ok(msg);
    }

    protected virtual ApiMessage? BuildMessage(ApiRequestInfo req)
    {
        return new ServerStatusMessage();
    }
}