using VideoDownloader.App.Browser.Features;
using VideoDownloader.Browser.Tabs;

namespace VideoDownloader.Tests.Browser;

// ── T2-2 탭 절전: 유휴 비활성 탭 자동 서스펜드 ──
public class TabSuspendServiceTests
{
    [Fact]
    public void 활성_탭은_절전하지_않는다()
    {
        var m = new TabManager(() => new TabItem());
        var active = m.NewTab("https://a.com");
        var svc = new TabSuspendService(TimeSpan.FromMinutes(10),
            t => throw new InvalidOperationException("suspend should not be called"),
            t => t == active);

        svc.SuspendIdleTabs(m.Tabs, active, now: active.LastActivated.AddMinutes(30));
        Assert.False(active.IsSuspended);
    }

    [Fact]
    public void 유휴_비활성_탭은_절전한다()
    {
        var m = new TabManager(() => new TabItem());
        var old = m.NewTab("https://a.com");
        var active = m.NewTab("https://b.com");
        var suspended = new List<TabItem>();
        var svc = new TabSuspendService(TimeSpan.FromMinutes(10),
            t => { suspended.Add(t); return true; },
            t => t != active);

        var now = old.LastActivated.AddMinutes(11);
        svc.SuspendIdleTabs(m.Tabs, active, now);
        Assert.Contains(old, suspended);
        Assert.DoesNotContain(active, suspended);
    }

    [Fact]
    public void 이미_절전된_탭은_중복_서스펜드_하지_않는다()
    {
        var m = new TabManager(() => new TabItem());
        var old = m.NewTab("https://a.com");
        var active = m.NewTab("https://b.com");
        old.IsSuspended = true;
        var calls = 0;
        var svc = new TabSuspendService(TimeSpan.FromMinutes(10), t => { calls++; return true; }, t => t != active);

        svc.SuspendIdleTabs(m.Tabs, active, old.LastActivated.AddHours(1));
        Assert.Equal(0, calls);
    }

    [Fact]
    public void 최근에_활성화된_탭은_절전하지_않는다()
    {
        var m = new TabManager(() => new TabItem());
        var recent = m.NewTab("https://a.com");
        var active = m.NewTab("https://b.com");
        m.Activate(recent); // 방금 사용
        var calls = 0;
        var svc = new TabSuspendService(TimeSpan.FromMinutes(10), t => { calls++; return true; }, t => t != active);

        svc.SuspendIdleTabs(m.Tabs, active, recent.LastActivated.AddMinutes(1));
        Assert.Equal(0, calls);
    }
}

// ── T2-8 탭 검색(Ctrl+Shift+A): 열린+닫힌 탭 필터 ──
public class TabSearchFilterTests
{
    [Fact]
    public void 제목과_URL_부분일치로_필터링한다()
    {
        var m = new TabManager(() => new TabItem());
        m.NewTab("https://youtube.com/watch?v=1");
        m.Tabs[0].Title = "My Favorite Video";
        m.NewTab("https://news.example.com");
        m.Tabs[1].Title = "News";

        var hits = TabSearchFilter.Search(m.Tabs, "favorite");
        Assert.Single(hits);
        Assert.Equal("My Favorite Video", hits[0].Title);

        hits = TabSearchFilter.Search(m.Tabs, "youtube");
        Assert.Single(hits);

        hits = TabSearchFilter.Search(m.Tabs, "EXAMPLE"); // 대소문자 무시
        Assert.Single(hits);
    }

    [Fact]
    public void 닫힌_탭도_검색_대상에_포함된다()
    {
        var m = new TabManager(() => new TabItem());
        var t = m.NewTab("https://github.com/x");
        m.Tabs[0].Title = "GitHub Repo";
        m.CloseTab(t);

        var hits = TabSearchFilter.Search(m.Tabs, m.ClosedStack, "github");
        Assert.Single(hits);
        Assert.Equal("GitHub Repo", hits[0].Title);
        Assert.True(hits[0].IsClosed);
    }

    [Fact]
    public void 빈_질의는_빈_결과()
    {
        var m = new TabManager(() => new TabItem());
        m.NewTab("https://a.com");
        Assert.Empty(TabSearchFilter.Search(m.Tabs, ""));
        Assert.Empty(TabSearchFilter.Search(m.Tabs, "   "));
    }
}