using System;
using System.IO;
using System.Linq;
using System.Windows.Controls;
using Paca.App;
using Paca.Browser;
using Paca.Browser.Tabs;
using Paca.Tests.Infrastructure;
using Xunit;

namespace Paca.Tests.Browser;

public class ChromeParityMilestone10Tests
{
    [Fact]
    public void BuildTabContextMenu_새창으로_이동_및_절전모드_전환_옵션_포함()
    {
        using var sta = StaDispatcher.Start();
        WpfTestApp.Ensure(sta.Dispatcher);
        sta.Invoke(() =>
        {
            var dataDir = Path.Combine(Path.GetTempPath(), $"vd_tab_win_{Guid.NewGuid():N}");
            Environment.SetEnvironmentVariable("VD_DATA_DIR", dataDir);
            try
            {
                var win = new MainWindow();
                win.TabsManager.Tabs.Clear();
                var t1 = win.TabsManager.NewTab("https://site1.com");
                var t2 = win.TabsManager.NewTab("https://site2.com");

                var menu = win.BuildTabContextMenu(t1);
                var items = menu.Items.OfType<MenuItem>().Select(m => m.Header?.ToString()).ToList();

                Assert.Contains("새 창으로 탭 이동", items);
                Assert.Contains("탭 절전 모드로 전환", items);
            }
            finally
            {
                try { if (Directory.Exists(dataDir)) Directory.Delete(dataDir, true); } catch { }
            }
        });
    }

    [Fact]
    public void DiscardTab_활성탭은_절전불가_비활성탭은_절전모드로_전환된다()
    {
        using var sta = StaDispatcher.Start();
        WpfTestApp.Ensure(sta.Dispatcher);
        sta.Invoke(() =>
        {
            var dataDir = Path.Combine(Path.GetTempPath(), $"vd_discard_{Guid.NewGuid():N}");
            Environment.SetEnvironmentVariable("VD_DATA_DIR", dataDir);
            try
            {
                var win = new MainWindow();
                win.TabsManager.Tabs.Clear();
                var t1 = win.TabsManager.NewTab("https://site1.com");
                var t2 = win.TabsManager.NewTab("https://site2.com");

                win.TabsManager.Activate(t1);

                // t1은 현재 활성 탭이므로 절전 전환 거부(Chrome 메모리 세이버 사양)
                var discardedActive = win.DiscardTab(t1);
                Assert.False(discardedActive);
                Assert.False(t1.IsSuspended);

                // t2는 비활성 탭이므로 절전 전환 성공
                var discardedInactive = win.DiscardTab(t2);
                Assert.True(discardedInactive);
                Assert.True(t2.IsSuspended);
            }
            finally
            {
                try { if (Directory.Exists(dataDir)) Directory.Delete(dataDir, true); } catch { }
            }
        });
    }
}