using System;
using System.Text.RegularExpressions;
using System.Windows;
using System.Windows.Controls;
using Paca.App.Browser;
using Paca.App.ViewModels;
using Paca.Tests.Infrastructure;
using Xunit;

namespace Paca.Tests.App;

public class QuickCaptureHudWindowGateTests
{
    [Fact]
    public void Gate227_QuickCaptureHudWindow_HasCorrectWindowStyles()
    {
        using var sta = StaDispatcher.Start();
        sta.Invoke(() =>
        {
            var vm = new QuickCaptureHudViewModel("https://youtube.com/watch?v=abc");
            var window = new QuickCaptureHudWindow(vm);

            Assert.True(window.AllowsTransparency);
            Assert.Equal(WindowStyle.None, window.WindowStyle);
            Assert.False(window.ShowInTaskbar);
            Assert.True(window.Topmost);
        });
    }

    [Fact]
    public void Gate228_QuickCaptureHudWindow_BindsViewModel_AndExposesControls()
    {
        using var sta = StaDispatcher.Start();
        sta.Invoke(() =>
        {
            var vm = new QuickCaptureHudViewModel("https://twitter.com/test/video");
            var window = new QuickCaptureHudWindow(vm);

            Assert.Equal(vm, window.ViewModel);
            Assert.NotNull(window.DownloadButton);
            Assert.NotNull(window.SendToPhoneButton);
            Assert.NotNull(window.DismissButton);
        });
    }

    [Fact]
    public void Gate229_QuickCaptureHudWindow_StrictDesignTokens_Audit()
    {
        using var sta = StaDispatcher.Start();
        sta.Invoke(() =>
        {
            var vm = new QuickCaptureHudViewModel("https://instagram.com/reel/xyz");
            var window = new QuickCaptureHudWindow(vm);

            // 1. Min button height >= 32px
            Assert.True(window.DownloadButton.MinHeight >= 32, "Download button height >= 32");
            Assert.True(window.SendToPhoneButton.MinHeight >= 32, "SendToPhone button height >= 32");

            // 2. Strict no emoji regex audit
            var emojiRegex = new Regex(@"[\uD83C-\uDBFF\uDC00-\uDFFF]");
            Assert.DoesNotMatch(emojiRegex, window.DownloadButton.Content?.ToString() ?? "");
            Assert.DoesNotMatch(emojiRegex, window.SendToPhoneButton.Content?.ToString() ?? "");
        });
    }

    [Fact]
    public void Gate230_QuickCaptureHudWindow_Positioning_CalculatesBottomRightCoordinates()
    {
        using var sta = StaDispatcher.Start();
        sta.Invoke(() =>
        {
            var vm = new QuickCaptureHudViewModel("https://example.com");
            var window = new QuickCaptureHudWindow(vm);

            var (left, top) = window.CalculateDefaultPosition(1920, 1080, 420, 100);
            
            // Bottom right with margin: left ~ 1920 - 420 - 24 = 1476, top ~ 1080 - 100 - 64 = 916
            Assert.True(left > 1400);
            Assert.True(top > 900);
        });
    }
}