using System;
using System.IO;
using System.Text.Json;
using Paca.App;
using Paca.Server.Gateway;
using Paca.Tests.Infrastructure;
using Xunit;

namespace Paca.Tests.App;

/// <summary>
/// Gate 164 ~ 166: 데스크톱 트레이 알림 및 모바일 양방향 실시간 게이트웨이 푸시 스트림 기계적 검증
/// </summary>
public class DesktopTrayAndGatewayPushGateTests
{
    [Fact]
    public void Gate164_DesktopTrayNotification_Event_Payload()
    {
        var payload = new DesktopTrayNotificationPayload(
            Title: "모바일에서 다운로드 수신",
            Message: "Galaxy S24에서 '4K 여행 브이로그' 다운로드를 전송했습니다.",
            Type: TrayNotificationType.Info,
            Timestamp: DateTimeOffset.UtcNow
        );

        Assert.Equal("모바일에서 다운로드 수신", payload.Title);
        Assert.Equal(TrayNotificationType.Info, payload.Type);
        Assert.False(string.IsNullOrWhiteSpace(payload.Message));
    }

    [Fact]
    public void Gate165_GatewayPushEvent_Serialization_And_Types()
    {
        var pushEvent = new GatewayPushEvent(
            EventId: "evt-901",
            EventType: GatewayEventType.DownloadFinished,
            Title: "다운로드 완료",
            PayloadJson: "{\"id\":\"job-12\",\"fileName\":\"Nature_4K.mp4\"}",
            OccurredAt: DateTimeOffset.UtcNow
        );

        var json = JsonSerializer.Serialize(pushEvent);
        var deserialized = JsonSerializer.Deserialize<GatewayPushEvent>(json);

        Assert.NotNull(deserialized);
        Assert.Equal("evt-901", deserialized.EventId);
        Assert.Equal(GatewayEventType.DownloadFinished, deserialized.EventType);
        Assert.Contains("Nature_4K.mp4", deserialized.PayloadJson);
    }

    [Fact]
    public void Gate166_ServerHost_GatewayEvents_Endpoint_Registered()
    {
        var serverHostPath = Path.Combine(SourceTree.Root, "src", "Paca.Server", "ServerHost.cs");
        Assert.True(File.Exists(serverHostPath), "ServerHost.cs must exist");

        var code = File.ReadAllText(serverHostPath);

        Assert.Contains("/api/gateway/events", code);
    }
}