using System;
using System.IO;
using System.Linq;
using System.Windows.Controls;
using System.Windows.Controls.Primitives;
using Microsoft.Data.Sqlite;
using Xunit;
using ytLive.Helpers;
using ytLive.ViewModels;

namespace ytLive.Tests;

[Collection("RealApp")]
public sealed class LogsPanelTests
{
    private readonly RealAppHost _app;

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

    [Fact]
    public void NonEditPanel_DefaultsToLiveChat_AndShowsCurrentLaunchLogsNewestFirst()
    {
        var directory = Path.Combine(Path.GetTempPath(), $"ytlive-logs-panel-{Guid.NewGuid():N}");
        Directory.CreateDirectory(directory);
        var databasePath = Path.Combine(directory, "layout.db");
        var logPath = Path.Combine(directory, "startup.log");
        File.WriteAllText(logPath, "previous-launch-sentinel" + Environment.NewLine);
        AppLog.PathOverride = logPath;
        MainViewModel.LayoutPathOverride = databasePath;

        try
        {
            _app.Run(() =>
            {
                var window = new MainWindow();
                try
                {
                    window.Show();
                    window.UpdateLayout();
                    var vm = (MainViewModel)window.DataContext;
                    var panel = (UserControl)window.FindName("LeftPanel")!;
                    var chatTab = (ToggleButton)panel.FindName("LiveChatTabButton")!;
                    var logsTab = (ToggleButton)panel.FindName("LogsTabButton")!;
                    var logList = (ListBox)panel.FindName("LogListBox")!;

                    Assert.True(vm.IsLiveChatTabSelected);
                    Assert.True(chatTab.IsChecked);
                    Assert.False(logsTab.IsChecked);
                    Assert.Equal(System.Windows.Visibility.Collapsed, logList.Visibility);

                    vm.IsLogsTabSelected = true;
                    window.UpdateLayout();
                    Assert.True(logsTab.IsChecked);
                    Assert.False(chatTab.IsChecked);
                    Assert.Equal(System.Windows.Visibility.Visible, logList.Visibility);

                    AppLog.Write("LogsPanel older marker");
                    AppLog.Write("LogsPanel newer marker");
                    vm.RefreshCurrentLaunchLogs();
                    window.UpdateLayout();

                    var entries = vm.CurrentLaunchLogEntries.Select(entry => entry.Text).ToArray();
                    var newerIndex = Array.FindIndex(entries, text => text.Contains("LogsPanel newer marker", StringComparison.Ordinal));
                    var olderIndex = Array.FindIndex(entries, text => text.Contains("LogsPanel older marker", StringComparison.Ordinal));
                    Assert.True(newerIndex >= 0 && olderIndex >= 0, "new log writes did not reach the Logs tab");
                    Assert.True(newerIndex < olderIndex, "the Logs tab must put the newest entry first");
                    Assert.DoesNotContain(entries, text => text.Contains("previous-launch-sentinel", StringComparison.Ordinal));
                    Assert.Same(vm.CurrentLaunchLogEntries, logList.ItemsSource);
                }
                finally
                {
                    window.Close();
                }
            });
        }
        finally
        {
            MainViewModel.LayoutPathOverride = null;
            AppLog.PathOverride = null;
            SqliteConnection.ClearAllPools();
            try { Directory.Delete(directory, recursive: true); } catch { }
        }
    }
}