using System;
using System.ComponentModel;
using Xunit;
using ytLive.Helpers;
using ytLive.Models;
using ytLive.ViewModels;

namespace ytLive.Tests;

/// <summary>
/// The ON-AIR sign and menu-bar color follow the real MainViewModel state,
/// including the YouTube lifecycle confirmation before the bar turns green.
/// </summary>
[Collection("RealApp")]
public sealed class OnAirSignTests
{
    [Fact]
    public void OnAirBrush_And_TopBarBackground_Follow_YouTube_Live_State()
    {
        _app.Run(Run);
    }

    private readonly RealAppHost _app;

    public OnAirSignTests(RealAppHost app) => _app = app;

    private void Run()
    {
        var tempDb = System.IO.Path.Combine(System.IO.Path.GetTempPath(), $"ytLlive-onair-{Guid.NewGuid():N}.db");
        MainViewModel.LayoutPathOverride = tempDb;
        try
        {
            using (var schema = new ytLive.Services.LayoutStore(tempDb)) { }
            Microsoft.Data.Sqlite.SqliteConnection.ClearAllPools();

            var vm = new MainViewModel();

            Assert.Equal(StreamStatus.Offline, vm.StreamStatus);
            Assert.Equal("#5b6478", vm.OnAirBrush);
            var idleBackground = vm.TopBarBackground;

            var raised = 0;
            vm.PropertyChanged += (_, e) => { if (e.PropertyName == nameof(MainViewModel.OnAirBrush)) raised++; };

            vm.StreamVisibility = "Public";
            Assert.Equal("#5b6478", vm.OnAirBrush);

            vm.StreamStatus = StreamStatus.Streaming;
            Assert.Equal("#ff5451", vm.OnAirBrush);
            Assert.Equal(ThemeBrush.Hex("Brush.Primary"), vm.TopBarBackground);

            vm.ApplyBroadcastLifecycleStatus("liveStarting");
            Assert.Equal(ThemeBrush.Hex("Brush.Primary"), vm.TopBarBackground);

            vm.StreamVisibility = "Private";
            Assert.Equal("#22c55e", vm.OnAirBrush);

            Assert.Equal(3, raised);
            vm.ApplyBroadcastLifecycleStatus("live");
            Assert.Equal(ThemeBrush.Hex("Brush.Positive"), vm.TopBarBackground);

            vm.StreamStatus = StreamStatus.Offline;
            Assert.Equal(idleBackground, vm.TopBarBackground);

            vm.IsTestStream = true;
            vm.StreamStatus = StreamStatus.Streaming;
            Assert.Equal(ThemeBrush.Hex("Brush.TestContainer"), vm.TopBarBackground);
            vm.ApplyBroadcastLifecycleStatus("live");
            Assert.Equal(ThemeBrush.Hex("Brush.TestContainer"), vm.TopBarBackground);
            vm.StreamStatus = StreamStatus.Offline;
            Assert.Equal(idleBackground, vm.TopBarBackground);
        }
        finally
        {
            MainViewModel.LayoutPathOverride = null;
            Microsoft.Data.Sqlite.SqliteConnection.ClearAllPools();
            try { System.IO.File.Delete(tempDb); } catch { /* best-effort cleanup */ }
        }
    }
}