using System.Net;
using System.Net.Http;
using YY.Admin.Helper;

namespace YY.Admin.Infrastructure.Network;

/// <summary>
/// 全局断开保护：用户勾选"断开连接"时，直接短路所有后端 HTTP 请求，
/// 返回 499 而不发起真实网络调用，各服务的 catch/IsSuccessStatusCode 分支自行降级。
/// </summary>
internal sealed class DisconnectGuardHandler : DelegatingHandler
{
    protected override Task<HttpResponseMessage> SendAsync(
        HttpRequestMessage request,
        CancellationToken cancellationToken)
    {
        if (ServerSettingsStore.Load().DisconnectConnection)
        {
            return Task.FromResult(new HttpResponseMessage((HttpStatusCode)499)
            {
                ReasonPhrase = "User Disconnected"
            });
        }
        return base.SendAsync(request, cancellationToken);
    }
}