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

namespace Paca.Tests.Browser;

public class ChromeParityMilestone8Tests
{
    [Fact]
    public void ReadingListManager_Add_새_항목을_읽지않음_목록에_추가한다()
    {
        var tempDir = Path.Combine(Path.GetTempPath(), $"vd_readlist_{Guid.NewGuid():N}");
        try
        {
            var mgr = new ReadingListManager(tempDir);
            var item = mgr.Add("C# 12 신기능 가이드", "https://learn.microsoft.com/csharp");

            Assert.NotNull(item);
            Assert.Equal("C# 12 신기능 가이드", item.Title);
            Assert.Equal("https://learn.microsoft.com/csharp", item.Url);
            Assert.False(item.IsRead);
            Assert.Single(mgr.Items);
            Assert.Single(mgr.UnreadItems);
            Assert.Empty(mgr.ReadItems);
        }
        finally
        {
            try { if (Directory.Exists(tempDir)) Directory.Delete(tempDir, true); } catch { }
        }
    }

    [Fact]
    public void ReadingListManager_Add_동일_URL_재추가시_기존_항목_갱신()
    {
        var tempDir = Path.Combine(Path.GetTempPath(), $"vd_readlist_dup_{Guid.NewGuid():N}");
        try
        {
            var mgr = new ReadingListManager(tempDir);
            mgr.Add("구글 메인", "https://google.com");
            var item2 = mgr.Add("구글 검색 포털", "https://google.com");

            Assert.Single(mgr.Items);
            Assert.Equal("구글 검색 포털", item2.Title);
        }
        finally
        {
            try { if (Directory.Exists(tempDir)) Directory.Delete(tempDir, true); } catch { }
        }
    }

    [Fact]
    public void ReadingListManager_MarkAsRead_읽음_상태를_변경한다()
    {
        var tempDir = Path.Combine(Path.GetTempPath(), $"vd_readlist_read_{Guid.NewGuid():N}");
        try
        {
            var mgr = new ReadingListManager(tempDir);
            var item = mgr.Add("Tech News", "https://news.ycombinator.com");

            var success = mgr.MarkAsRead(item.Id, true);
            Assert.True(success);
            Assert.True(item.IsRead);
            Assert.Empty(mgr.UnreadItems);
            Assert.Single(mgr.ReadItems);
        }
        finally
        {
            try { if (Directory.Exists(tempDir)) Directory.Delete(tempDir, true); } catch { }
        }
    }

    [Fact]
    public void ReadingListManager_Remove_항목을_삭제한다()
    {
        var tempDir = Path.Combine(Path.GetTempPath(), $"vd_readlist_del_{Guid.NewGuid():N}");
        try
        {
            var mgr = new ReadingListManager(tempDir);
            var item = mgr.Add("To Delete", "https://example.com");

            var removed = mgr.Remove(item.Id);
            Assert.True(removed);
            Assert.Empty(mgr.Items);
        }
        finally
        {
            try { if (Directory.Exists(tempDir)) Directory.Delete(tempDir, true); } catch { }
        }
    }

    [Fact]
    public void ReadingListManager_ClearRead_읽은_항목만_일괄_삭제한다()
    {
        var tempDir = Path.Combine(Path.GetTempPath(), $"vd_readlist_clear_{Guid.NewGuid():N}");
        try
        {
            var mgr = new ReadingListManager(tempDir);
            var i1 = mgr.Add("Item 1", "https://site1.com");
            var i2 = mgr.Add("Item 2", "https://site2.com");
            mgr.MarkAsRead(i1.Id, true);

            var count = mgr.ClearRead();
            Assert.Equal(1, count);
            Assert.Single(mgr.Items);
            Assert.Equal("Item 2", mgr.Items[0].Title);
        }
        finally
        {
            try { if (Directory.Exists(tempDir)) Directory.Delete(tempDir, true); } catch { }
        }
    }

    [Fact]
    public void ReadingListManager_Persistence_디스크에_저장되고_새_인스턴스에서_복원된다()
    {
        var tempDir = Path.Combine(Path.GetTempPath(), $"vd_readlist_persist_{Guid.NewGuid():N}");
        try
        {
            var mgr1 = new ReadingListManager(tempDir);
            mgr1.Add("Persistent Item", "https://persistent.com");

            var mgr2 = new ReadingListManager(tempDir);
            Assert.Single(mgr2.Items);
            Assert.Equal("Persistent Item", mgr2.Items[0].Title);
            Assert.Equal("https://persistent.com", mgr2.Items[0].Url);
        }
        finally
        {
            try { if (Directory.Exists(tempDir)) Directory.Delete(tempDir, true); } catch { }
        }
    }

    [Theory]
    [InlineData("chrome://reading-list", ChromeInternalAction.ReadingList)]
    [InlineData("paca://reading-list", ChromeInternalAction.ReadingList)]
    public void ChromeInternalUrlRouter_읽기_목록_라우팅(string url, ChromeInternalAction expectedAction)
    {
        var action = ChromeInternalUrlRouter.Route(url);
        Assert.Equal(expectedAction, action);
    }

    [Fact]
    public void BuildTabContextMenu_읽기_목록에_탭_추가_옵션이_포함된다()
    {
        using var sta = StaDispatcher.Start();
        WpfTestApp.Ensure(sta.Dispatcher);
        sta.Invoke(() =>
        {
            var dataDir = Path.Combine(Path.GetTempPath(), $"vd_tab_readlist_{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");
                t1.Title = "사이트 1";

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

                Assert.Contains("읽기 목록에 탭 추가", items);
            }
            finally
            {
                try { if (Directory.Exists(dataDir)) Directory.Delete(dataDir, true); } catch { }
            }
        });
    }
}