using MBN_STOCK_WEBVIEW.LegacyApplication;
using MMoneyCoderSharp.Data;

namespace MBN_STOCK_WEBVIEW.LegacyApplication.Tests;

public sealed class LegacyOperatorControllerTests
{
    [Fact]
    public async Task IndustryTabLoadsSelectorRotatesPairAndAddsTrustedActions()
    {
        var industries = Enumerable.Range(1, 11)
            .Select(index => new IndustrySelection(
                IndustryMarket.Kospi,
                $"업종{index}",
                index.ToString("D3", System.Globalization.CultureInfo.InvariantCulture)))
            .ToArray();
        var workflow = new LegacyIndustrySelectionWorkflow(
            new StaticIndustryService(industries));
        var controller = new LegacyOperatorController(
            Lookup(),
            industryWorkflow: workflow);

        var loaded = await controller.SelectTabAsync(LegacyOperatorTabId.KospiIndustry);
        Assert.Equal(11, loaded.Industry?.Industries.Count);

        controller.SelectIndustry(0, doubleClick: true);
        var pair = controller.SelectIndustry(1, doubleClick: true);
        Assert.Equal("업종2", pair.Industry?.FirstIndustry?.IndustryName);
        Assert.Equal("업종1", pair.Industry?.SecondIndustry?.IndustryName);

        var twoColumn = controller.ActivateIndustryAction("two-column");
        var pairRow = Assert.Single(twoColumn.Playlist);
        Assert.Equal("8018", pairRow.ToPlayoutEntry().CutCode);
        Assert.Equal("업종2-업종1", pairRow.StockName);

        var paged = controller.ActivateIndustryAction("five-row");
        Assert.Equal("1/3", paged.Playlist[1].PageText);
        Assert.Equal("5074", paged.Playlist[1].ToPlayoutEntry().CutCode);
    }

    [Fact]
    public async Task IndustryParentDoubleClickMaterializesDirectChildrenAtomicallyInOrder()
    {
        var industries = Enumerable.Range(1, 3)
            .Select(index => new IndustrySelection(
                IndustryMarket.Kospi,
                $"업종{index}",
                index.ToString("D3", System.Globalization.CultureInfo.InvariantCulture)))
            .ToArray();
        var controller = new LegacyOperatorController(
            Lookup(),
            industryWorkflow: new LegacyIndustrySelectionWorkflow(
                new StaticIndustryService(industries)));
        await controller.SelectTabAsync(LegacyOperatorTabId.KospiIndustry);
        controller.SelectIndustry(0, doubleClick: true);

        var rejected = controller.ActivateIndustrySection(0);
        Assert.Empty(rejected.Playlist);

        controller.SelectIndustry(1, doubleClick: true);
        var added = controller.ActivateIndustrySection(0);
        Assert.Collection(
            added.Playlist,
            row => Assert.Equal("5001", row.SceneAlias),
            row => Assert.Equal("8018", row.SceneAlias));
    }

    [Fact]
    public async Task ThemeTabSearchPreviewSortAndActionRemainCSharpAuthoritative()
    {
        var identity = new ThemeSelectionIdentity(
            ThemeMarket.Krx,
            ThemeSession.NotApplicable,
            "00000001",
            "AI 테마");
        var service = new StaticThemeService(
            identity,
            Enumerable.Range(0, 13)
                .Select(index => new ThemeItemPreview(
                    index,
                    $"P{index + 1:000000}",
                    $"종목{index + 1}"))
                .ToArray());
        var controller = new LegacyOperatorController(
            Lookup(),
            themeWorkflow: new LegacyThemeWorkflow(service));
        await controller.SelectTabAsync(LegacyOperatorTabId.Theme);

        var searched = await controller.SearchThemesAsync("AI", ThemeSession.PreMarket);
        var resultId = Assert.Single(searched.Theme!.SearchResults).ResultId;
        var selected = await controller.SelectThemeAsync(resultId);
        Assert.Equal(13, selected.Theme?.PreviewItems.Count);

        controller.SetThemeSort("GAIN_DESC");
        var added = controller.ActivateThemeAction("five-row-current");
        var row = Assert.Single(added.Playlist);
        Assert.Equal("5074", row.ToPlayoutEntry().CutCode);
        Assert.Equal("1/3", row.PageText);
        Assert.Equal("AI 테마", row.StockName);
        Assert.Equal(
            "GAIN_DESC",
            Assert.IsType<MBN_STOCK_WEBVIEW.Core.Playout.Scenes.LegacySceneSelection>(
            row.ToPlayoutEntry().Selection).GraphicType);
    }

    [Fact]
    public async Task Theme_result_double_click_awaits_preview_and_adds_fixed_current_action_once()
    {
        var identity = new ThemeSelectionIdentity(
            ThemeMarket.Krx,
            ThemeSession.NotApplicable,
            "00000001",
            "AI theme");
        var service = new StaticThemeService(
            identity,
            Enumerable.Range(0, 7)
                .Select(index => new ThemeItemPreview(
                    index,
                    $"P{index + 1:000000}",
                    $"Stock {index + 1}"))
                .ToArray());
        var controller = new LegacyOperatorController(
            Lookup(),
            themeWorkflow: new LegacyThemeWorkflow(service));
        var loaded = await controller.SelectTabAsync(LegacyOperatorTabId.Theme);
        var resultId = Assert.Single(loaded.Theme!.SearchResults).ResultId;

        var activated = await controller.ActivateThemeResultAsync(resultId);

        Assert.Equal(1, service.PreviewCalls);
        Assert.Equal(resultId, activated.Theme?.SelectedResultId);
        var row = Assert.Single(activated.Playlist);
        Assert.Equal("5074", row.ToPlayoutEntry().CutCode);
        Assert.Equal("1/2", row.PageText);
        Assert.Equal("INPUT_ORDER", Assert.IsType<
            MBN_STOCK_WEBVIEW.Core.Playout.Scenes.LegacySceneSelection>(
                row.ToPlayoutEntry().Selection).GraphicType);
        Assert.Equal("activate-theme-result", activated.CommandResult?.Command);
        Assert.True(activated.CommandResult?.Succeeded);
    }

    [Fact]
    public async Task ExpertTabSearchPreviewAndPagedActionAddOriginalRow()
    {
        var controller = new LegacyOperatorController(
            Lookup(),
            expertWorkflow: new LegacyExpertWorkflowController(new StaticExpertService()));
        await controller.SelectTabAsync(LegacyOperatorTabId.Expert);

        var search = await controller.SearchExpertsAsync("전문가");
        var selectionId = Assert.Single(search.Expert!.Search.Results).SelectionId;
        await controller.SelectExpertAsync(selectionId);
        var added = controller.ActivateExpertAction(
            LegacyExpertWorkflowController.ActionId);

        var row = Assert.Single(added.Playlist);
        Assert.Equal("5074", row.ToPlayoutEntry().CutCode);
        Assert.Equal("1/2", row.PageText);
        Assert.Equal("전문가", row.MarketText);
    }

    [Fact]
    public async Task TradingHaltTabAddsCurrentAndCandleWithGlobalMovingAverages()
    {
        var controller = new LegacyOperatorController(
            Lookup(),
            tradingHaltWorkflow: new LegacyTradingHaltWorkflowController(
                new StaticTradingHaltService()));
        await controller.SelectTabAsync(LegacyOperatorTabId.TradingHalt);
        var search = await controller.SearchTradingHaltsAsync("");
        var selectionId = Assert.Single(search.TradingHalt!.Results).SelectionId;
        controller.SelectTradingHalt(selectionId);

        var current = controller.ActivateTradingHaltAction(
            LegacyTradingHaltWorkflowController.CurrentActionId);
        Assert.Equal("5001", Assert.Single(current.Playlist).ToPlayoutEntry().CutCode);

        controller.SetMovingAverages(ma5: true, ma20: false);
        var candle = controller.ActivateTradingHaltAction(
            LegacyTradingHaltWorkflowController.CandleActionId);
        var candleRow = candle.Playlist[1];
        Assert.Equal("8051", candleRow.ToPlayoutEntry().CutCode);
        Assert.Equal(
            "MA5",
            Assert.IsType<MBN_STOCK_WEBVIEW.Core.Playout.Scenes.LegacySceneSelection>(
                candleRow.ToPlayoutEntry().Selection).GraphicType);
    }

    [Fact]
    public void Tabs_StartInOriginalOrderAndSwapByIdentity()
    {
        var controller = new LegacyOperatorController(Lookup());

        Assert.Equal(
            ["해외", "환율", "지수", "코스피", "코스닥", "비교", "테마", "해외종목", "전문가", "정지"],
            controller.Current.Tabs!.Select(tab => tab.Label));
        Assert.Equal(
            LegacyOperatorTabId.Overseas,
            Assert.Single(controller.Current.Tabs!, tab => tab.IsActive).Id);

        var selected = controller.SelectTab(LegacyOperatorTabId.Theme);
        Assert.Equal(
            LegacyOperatorTabId.Theme,
            Assert.Single(selected.Tabs!, tab => tab.IsActive).Id);

        var swapped = controller.SwapTabs(
            LegacyOperatorTabId.Theme,
            LegacyOperatorTabId.Exchange);
        Assert.Equal(LegacyOperatorTabId.Theme, swapped.Tabs![1].Id);
        Assert.Equal(LegacyOperatorTabId.Exchange, swapped.Tabs[6].Id);
        Assert.Equal(
            LegacyOperatorTabId.Theme,
            Assert.Single(swapped.Tabs, tab => tab.IsActive).Id);
    }

    [Fact]
    public async Task TabHoverSwapUsesExpectedPositionsSoDuplicateDeliveryCannotSwapBack()
    {
        var controller = new LegacyOperatorController(Lookup());

        var first = await controller.SwapTabsAtExpectedPositionsAsync(
            LegacyOperatorTabId.Theme,
            LegacyOperatorTabId.Exchange,
            expectedSourceIndex: 6,
            expectedTargetIndex: 1);
        Assert.Equal(LegacyOperatorTabId.Theme, first.Tabs![1].Id);
        Assert.Equal(LegacyOperatorTabId.Exchange, first.Tabs[6].Id);

        var revision = first.Revision;
        var duplicate = await controller.SwapTabsAtExpectedPositionsAsync(
            LegacyOperatorTabId.Theme,
            LegacyOperatorTabId.Exchange,
            expectedSourceIndex: 6,
            expectedTargetIndex: 1);
        Assert.Equal(revision, duplicate.Revision);
        Assert.Equal(LegacyOperatorTabId.Theme, duplicate.Tabs![1].Id);
        Assert.Equal(LegacyOperatorTabId.Exchange, duplicate.Tabs[6].Id);
    }

    [Fact]
    public async Task PlaylistKeyboardCommandsUseActiveRowAndBoundaries()
    {
        var controller = await ControllerWithPlaylistAsync(0, 1, 2);
        var rows = controller.Current.Playlist;

        var last = controller.SelectPlaylistBoundary(last: true);
        Assert.True(last.Playlist[0].IsEnabled);
        Assert.True(last.Playlist[2].IsSelected);

        var toggled = controller.ToggleActivePlaylistRowEnabled();
        Assert.False(toggled.Playlist[2].IsEnabled);

        var first = controller.SelectPlaylistBoundary(last: false);
        Assert.True(first.Playlist[0].IsSelected);
        Assert.False(first.Playlist[2].IsSelected);
    }

    [Fact]
    public async Task FixedCatalogLeafAndSectionAreMaterializedOnlyByCSharp()
    {
        var controller = new LegacyOperatorController(Lookup());
        var first = LegacyFixedActionCatalog.Default.GetActions(LegacyFixedMarket.Overseas)[0];

        var leaf = controller.ActivateFixedAction(first.Id);

        var row = Assert.Single(leaf.Playlist);
        Assert.Equal("해외지수", row.MarketText);
        Assert.Equal(first.Label, row.StockName);
        Assert.Equal(first.Code, row.ToPlayoutEntry().CutCode);
        Assert.Equal(
            first.Selection.Subject,
            Assert.IsType<MBN_STOCK_WEBVIEW.Core.Playout.Scenes.LegacySceneSelection>(
                row.ToPlayoutEntry().Selection).Subject);

        var firstSection = LegacyFixedActionCatalog.Default
            .GetSections(LegacyFixedMarket.Overseas)[0];
        var section = await controller.ActivateFixedSection(0);
        Assert.Equal(1 + firstSection.Actions.Count, section.Playlist.Count);
        Assert.Equal(
            firstSection.Actions.Select(action => action.Label),
            section.Playlist.Skip(1).Select(item => item.StockName));
    }

    [Fact]
    public void FixedCatalogRejectsCrossTabAndUnavailableActionsAtomically()
    {
        var controller = new LegacyOperatorController(Lookup());
        var exchange = LegacyFixedActionCatalog.Default
            .GetActions(LegacyFixedMarket.Exchange)[0];

        var crossTab = controller.ActivateFixedAction(exchange.Id);
        Assert.Empty(crossTab.Playlist);
        Assert.Equal(LegacyOperatorStatusKind.Error, crossTab.StatusKind);

        var unavailable = LegacyFixedActionCatalog.Default.Actions
            .First(action => !action.Available);
        controller.SelectTab(unavailable.Market switch
        {
            LegacyFixedMarket.Overseas => LegacyOperatorTabId.Overseas,
            LegacyFixedMarket.Exchange => LegacyOperatorTabId.Exchange,
            LegacyFixedMarket.Index => LegacyOperatorTabId.Index,
            _ => throw new InvalidOperationException()
        });
        var blocked = controller.ActivateFixedAction(unavailable.Id);
        Assert.Empty(blocked.Playlist);
        Assert.Equal(unavailable.Prerequisite, blocked.Dialog?.Message);
    }

    [Fact]
    public void MovingAverageFlagsAreCapturedInFixedCandleSelection()
    {
        var controller = new LegacyOperatorController(Lookup());
        var candle = LegacyFixedActionCatalog.Default
            .GetActions(LegacyFixedMarket.Index)
            .First(action => action.SupportsMovingAverages);
        controller.SelectTab(LegacyOperatorTabId.Index);
        controller.SetMovingAverages(ma5: false, ma20: true);

        var state = controller.ActivateFixedAction(candle.Id);

        Assert.Equal(
            "MA20",
            Assert.IsType<MBN_STOCK_WEBVIEW.Core.Playout.Scenes.LegacySceneSelection>(
                Assert.Single(state.Playlist).ToPlayoutEntry().Selection).GraphicType);
        Assert.False(state.MovingAverages.Ma5);
        Assert.True(state.MovingAverages.Ma20);
    }

    [Fact]
    public async Task EmptyButtonIsNoOpButEmptyEnterSearches()
    {
        var lookup = Lookup();
        var controller = new LegacyOperatorController(lookup);

        await controller.SearchStocksAsync(string.Empty, LegacySearchTrigger.Button);
        Assert.Equal(0, lookup.CallCount);

        await controller.SearchStocksAsync(string.Empty, LegacySearchTrigger.Enter);
        Assert.Equal(1, lookup.CallCount);
    }

    [Fact]
    public async Task ExactPointerDoubleClick_AppendsOneLegacyRow()
    {
        var controller = new LegacyOperatorController(Lookup());
        await controller.SearchStocksAsync("삼성", LegacySearchTrigger.Button);
        controller.SelectStock(0);

        controller.CutPointerDown(1, false, false, 20, 45, 1_000);
        var state = controller.CutPointerDown(1, false, false, 20, 45, 1_400);

        var row = Assert.Single(state.Playlist);
        Assert.Equal("코스피", row.MarketText);
        Assert.Equal("삼성전자", row.StockName);
        Assert.Equal("1열판기본", row.GraphicType);
        Assert.Equal("현재가", row.Subtype);
        Assert.Equal("005930", row.StockCode);
        Assert.Equal("5001", row.ToPlayoutEntry().CutCode);
    }

    [Fact]
    public async Task ExactPointerDoubleClick_AllowsZeroBasedWebTimestamp()
    {
        var controller = new LegacyOperatorController(Lookup());
        await controller.SearchStocksAsync("삼성", LegacySearchTrigger.Button);
        controller.SelectStock(0);

        controller.CutPointerDown(1, false, false, 20, 45, 0);
        var state = controller.CutPointerDown(1, false, false, 20, 45, 499);

        Assert.Single(state.Playlist);
    }

    [Fact]
    public async Task DifferentPointerPosition_DoesNotCountAsLegacyDoubleClick()
    {
        var controller = new LegacyOperatorController(Lookup());
        await controller.SearchStocksAsync("삼성", LegacySearchTrigger.Button);
        controller.SelectStock(0);

        controller.CutPointerDown(1, false, false, 20, 45, 1_000);
        var state = controller.CutPointerDown(1, false, false, 21, 45, 1_200);

        Assert.Empty(state.Playlist);
    }

    [Fact]
    public async Task NativeSelectionAndLegacyDoubleClickRowsStaySeparateAtShiftEdges()
    {
        var controller = new LegacyOperatorController(Lookup());
        await controller.SearchStocksAsync("삼성", LegacySearchTrigger.Button);
        controller.SelectStock(0);

        var firstShift = controller.CutPointerDown(2, false, true, 20, 69, 1_000);
        Assert.Equal(
            [0, 1, 2],
            firstShift.CutRows.Where(row => row.IsSelected).Select(row => row.PhysicalIndex));

        var noDoubleClick = controller.CutPointerDown(2, false, false, 20, 69, 1_400);
        Assert.Empty(noDoubleClick.Playlist);

        var sameRowShift = controller.CutPointerDown(2, false, true, 21, 69, 2_000);
        Assert.Equal(
            [2],
            sameRowShift.CutRows.Where(row => row.IsSelected).Select(row => row.PhysicalIndex));

        var stillNoDoubleClick = controller.CutPointerDown(2, false, false, 21, 69, 2_400);
        Assert.Empty(stillNoDoubleClick.Playlist);
    }

    [Fact]
    public async Task ControlAndShiftSelection_DropsInPhysicalOrderAndKeepsDuplicates()
    {
        var controller = new LegacyOperatorController(Lookup());
        await controller.SearchStocksAsync("삼성", LegacySearchTrigger.Button);
        controller.SelectStock(0);
        controller.CutPointerDown(0, false, false, 1, 1, 1_000);
        controller.CutPointerDown(2, true, false, 1, 47, 2_000);
        controller.CutPointerDown(1, true, true, 1, 24, 3_000);

        var first = controller.DropSelectedCutsOnPlaylist();
        var second = controller.DropSelectedCutsOnPlaylist();

        Assert.Equal(3, first.Playlist.Count);
        Assert.Equal(6, second.Playlist.Count);
        Assert.Equal(
            ["예상체결가", "현재가", "시간외단일가"],
            first.Playlist.Select(row => row.Subtype));
    }

    [Fact]
    public async Task SameRowShiftStillDropsTheNativeListViewSelection()
    {
        var controller = new LegacyOperatorController(Lookup());
        await controller.SearchStocksAsync("삼성", LegacySearchTrigger.Button);
        controller.SelectStock(0);
        controller.CutPointerDown(1, false, false, 1, 24, 1_000);
        controller.CutPointerDown(1, false, true, 2, 24, 2_000);

        var state = controller.DropSelectedCutsOnPlaylist();

        Assert.Equal("현재가", Assert.Single(state.Playlist).Subtype);
    }

    [Fact]
    public async Task NxtOnlyAllowsCurrentAndShowsOriginalWarning()
    {
        var controller = new LegacyOperatorController(Lookup());
        await controller.SearchStocksAsync("넥스트", LegacySearchTrigger.Button);
        controller.SelectStock(1);
        controller.CutPointerDown(0, false, false, 1, 1, 1_000);
        var warning = controller.DropSelectedCutsOnPlaylist();

        Assert.Empty(warning.Playlist);
        Assert.Equal("NXT는 제공하지 않습니다.", warning.Dialog?.Message);

        controller.DismissDialog();
        controller.CutPointerDown(1, false, false, 1, 24, 2_000);
        var accepted = controller.DropSelectedCutsOnPlaylist();
        Assert.Equal("N5001", Assert.Single(accepted.Playlist).ToPlayoutEntry().CutCode);
    }

    [Fact]
    public async Task NxtMultiSelection_PausesAtEachOriginalModalBeforeContinuing()
    {
        var controller = new LegacyOperatorController(Lookup());
        await controller.SearchStocksAsync("넥스트", LegacySearchTrigger.Button);
        controller.SelectStock(1);
        controller.CutPointerDown(0, false, false, 1, 1, 1_000);
        controller.CutPointerDown(1, true, false, 1, 24, 2_000);
        controller.CutPointerDown(2, true, false, 1, 47, 3_000);

        var firstWarning = controller.DropSelectedCutsOnPlaylist();
        Assert.Empty(firstWarning.Playlist);
        Assert.Equal("NXT는 제공하지 않습니다.", firstWarning.Dialog?.Message);

        var secondWarning = controller.DismissDialog();
        Assert.Equal("N5001", Assert.Single(secondWarning.Playlist).ToPlayoutEntry().CutCode);
        Assert.Equal("NXT는 제공하지 않습니다.", secondWarning.Dialog?.Message);

        var finished = controller.DismissDialog();
        Assert.Single(finished.Playlist);
        Assert.Null(finished.Dialog);
    }

    [Fact]
    public async Task NxtSeparatorStillShowsOriginalWarning()
    {
        var controller = new LegacyOperatorController(Lookup());
        await controller.SearchStocksAsync("넥스트", LegacySearchTrigger.Button);
        controller.SelectStock(1);
        controller.CutPointerDown(3, false, false, 1, 70, 1_000);

        var warning = controller.DropSelectedCutsOnPlaylist();

        Assert.Empty(warning.Playlist);
        Assert.Equal("NXT는 제공하지 않습니다.", warning.Dialog?.Message);
    }

    [Fact]
    public async Task NewSearchClearsStockSelectionButNotCutCatalogOrPlaylist()
    {
        var controller = new LegacyOperatorController(Lookup());
        await controller.SearchStocksAsync("삼성", LegacySearchTrigger.Button);
        controller.SelectStock(0);
        controller.CutPointerDown(1, false, false, 1, 24, 1_000);
        controller.DropSelectedCutsOnPlaylist();

        var state = await controller.SearchStocksAsync("다시", LegacySearchTrigger.Button);

        Assert.Null(state.SelectedStockIndex);
        Assert.Equal(33, state.CutRows.Count);
        Assert.Single(state.Playlist);
    }

    [Fact]
    public async Task PlaylistPlainControlAndControlShiftSelectionMatchMainFormRules()
    {
        var controller = await ControllerWithPlaylistAsync(0, 1, 2, 4, 5);
        var ids = controller.Current.Playlist.Select(row => row.RowId).ToArray();

        controller.SelectPlaylistRow(ids[1], control: false, shift: false);
        controller.SelectPlaylistRow(ids[3], control: true, shift: false);
        controller.SelectPlaylistRow(ids[3], control: true, shift: false);
        var state = controller.SelectPlaylistRow(ids[4], control: true, shift: true);

        Assert.Equal(
            [ids[1], ids[3], ids[4]],
            state.Playlist.Where(row => row.IsSelected).Select(row => row.RowId));
    }

    [Fact]
    public async Task PlaylistShiftUsesPreviousActiveRowAndMovesItsRangeAnchor()
    {
        var controller = await ControllerWithPlaylistAsync(0, 1, 2, 4, 5);
        var ids = controller.Current.Playlist.Select(row => row.RowId).ToArray();

        controller.SelectPlaylistRow(ids[1], control: false, shift: false);
        var firstRange = controller.SelectPlaylistRow(ids[3], control: false, shift: true);
        Assert.Equal(
            ids[1..4],
            firstRange.Playlist.Where(row => row.IsSelected).Select(row => row.RowId));

        var movedRange = controller.SelectPlaylistRow(ids[4], control: false, shift: true);
        Assert.Equal(
            ids[3..5],
            movedRange.Playlist.Where(row => row.IsSelected).Select(row => row.RowId));
    }

    [Fact]
    public async Task FirstPlaylistShiftStartsAtOriginalZeroCursor()
    {
        var controller = await ControllerWithPlaylistAsync(0, 1, 2);
        var ids = controller.Current.Playlist.Select(row => row.RowId).ToArray();

        var state = controller.SelectPlaylistRow(ids[2], control: false, shift: true);

        Assert.All(state.Playlist, row => Assert.True(row.IsSelected));
    }

    [Fact]
    public async Task PlaylistEnabledSupportsIndividualToggleAndAllRows()
    {
        var controller = await ControllerWithPlaylistAsync(0, 1, 2);
        var ids = controller.Current.Playlist.Select(row => row.RowId).ToArray();

        controller.SetPlaylistRowEnabled(ids[0], false);
        var toggled = controller.TogglePlaylistRowEnabled(ids[1]);
        Assert.False(toggled.Playlist[0].IsEnabled);
        Assert.False(toggled.Playlist[1].IsEnabled);
        Assert.True(toggled.Playlist[2].IsEnabled);

        var disabled = controller.SetAllPlaylistRowsEnabled(false);
        Assert.All(disabled.Playlist, row => Assert.False(row.IsEnabled));

        var enabled = controller.SetAllPlaylistRowsEnabled(true);
        Assert.All(enabled.Playlist, row => Assert.True(row.IsEnabled));
    }

    [Fact]
    public async Task DeleteSelectedRowsPreservesRemainingPhysicalOrderAndClearsSelection()
    {
        var controller = await ControllerWithPlaylistAsync(0, 1, 2, 4);
        var initial = controller.Current.Playlist.ToArray();

        controller.SelectPlaylistRow(initial[1].RowId, control: false, shift: false);
        controller.SelectPlaylistRow(initial[3].RowId, control: true, shift: false);
        var state = controller.DeleteSelectedPlaylistRows();

        Assert.Equal(
            [initial[0].RowId, initial[2].RowId],
            state.Playlist.Select(row => row.RowId));
        Assert.DoesNotContain(state.Playlist, row => row.IsSelected);
    }

    [Fact]
    public async Task DeleteAllRowsClearsPlaylistAndSelectionState()
    {
        var controller = await ControllerWithPlaylistAsync(0, 1, 2);
        controller.SelectPlaylistRow(
            controller.Current.Playlist[1].RowId,
            control: false,
            shift: false);

        var empty = controller.DeleteAllPlaylistRows();
        Assert.Empty(empty.Playlist);

        var unchangedRevision = empty.Revision;
        var stillEmpty = controller.DeleteAllPlaylistRows();
        Assert.Equal(unchangedRevision, stillEmpty.Revision);
    }

    [Fact]
    public async Task MoveUsesOnlyActiveRowAndCollapsesMultiSelectionToMovedRow()
    {
        var controller = await ControllerWithPlaylistAsync(0, 1, 2, 4);
        var initial = controller.Current.Playlist.ToArray();

        controller.SelectPlaylistRow(initial[0].RowId, control: false, shift: false);
        controller.SelectPlaylistRow(initial[2].RowId, control: true, shift: false);
        var moved = controller.MoveSelectedPlaylistRows(LegacyPlaylistMoveDirection.Up);

        Assert.Equal(
            [initial[0].RowId, initial[2].RowId, initial[1].RowId, initial[3].RowId],
            moved.Playlist.Select(row => row.RowId));
        Assert.Equal(
            initial[2].RowId,
            Assert.Single(moved.Playlist, row => row.IsSelected).RowId);

        var restored = controller.MoveSelectedPlaylistRows(LegacyPlaylistMoveDirection.Down);
        Assert.Equal(initial.Select(row => row.RowId), restored.Playlist.Select(row => row.RowId));
        Assert.Equal(
            initial[2].RowId,
            Assert.Single(restored.Playlist, row => row.IsSelected).RowId);
    }

    [Fact]
    public async Task MoveAtBoundaryIsNoOp()
    {
        var controller = await ControllerWithPlaylistAsync(0, 1);
        var first = controller.Current.Playlist[0];
        controller.SelectPlaylistRow(first.RowId, control: false, shift: false);
        var before = controller.Current;

        var after = controller.MoveSelectedPlaylistRows(LegacyPlaylistMoveDirection.Up);

        Assert.Equal(before.Revision, after.Revision);
        Assert.Equal(
            before.Playlist.Select(row => row.RowId),
            after.Playlist.Select(row => row.RowId));
    }

    [Fact]
    public async Task PlaylistDragMovesNoncontiguousSelectionAsOneOrderedBlockAndIsIdempotent()
    {
        var controller = await ControllerWithPlaylistAsync(0, 1, 2, 4, 5, 6);
        var initial = controller.Current.Playlist.ToArray();

        controller.SelectPlaylistRow(initial[1].RowId, control: false, shift: false);
        controller.SelectPlaylistRow(initial[3].RowId, control: true, shift: false);
        var moved = controller.ReorderPlaylistRows(
            initial[3].RowId,
            initial[5].RowId,
            LegacyDragDropPosition.Before);

        Assert.Equal(
            [
                initial[0].RowId,
                initial[2].RowId,
                initial[4].RowId,
                initial[1].RowId,
                initial[3].RowId,
                initial[5].RowId
            ],
            moved.Playlist.Select(row => row.RowId));
        Assert.Equal(
            [initial[1].RowId, initial[3].RowId],
            moved.Playlist.Where(row => row.IsSelected).Select(row => row.RowId));

        var revision = moved.Revision;
        var duplicate = controller.ReorderPlaylistRows(
            initial[3].RowId,
            initial[5].RowId,
            LegacyDragDropPosition.Before);
        Assert.Equal(revision, duplicate.Revision);
        Assert.Equal(
            moved.Playlist.Select(row => row.RowId),
            duplicate.Playlist.Select(row => row.RowId));
    }

    [Fact]
    public async Task PlaylistDragFromUnselectedRowMovesOnlyThatRowAndSelectsIt()
    {
        var controller = await ControllerWithPlaylistAsync(0, 1, 2, 4);
        var initial = controller.Current.Playlist.ToArray();
        controller.SelectPlaylistRow(initial[0].RowId, control: false, shift: false);
        controller.SelectPlaylistRow(initial[1].RowId, control: true, shift: false);

        var moved = controller.ReorderPlaylistRows(
            initial[3].RowId,
            initial[0].RowId,
            LegacyDragDropPosition.Before);

        Assert.Equal(
            [initial[3].RowId, initial[0].RowId, initial[1].RowId, initial[2].RowId],
            moved.Playlist.Select(row => row.RowId));
        Assert.Equal(
            initial[3].RowId,
            Assert.Single(moved.Playlist, row => row.IsSelected).RowId);
    }

    private static async Task<LegacyOperatorController> ControllerWithPlaylistAsync(
        params int[] physicalCutRows)
    {
        var controller = new LegacyOperatorController(Lookup());
        await controller.SearchStocksAsync("삼성", LegacySearchTrigger.Button);
        controller.SelectStock(0);

        var timestamp = 1_000L;
        foreach (var physicalCutRow in physicalCutRows)
        {
            controller.CutPointerDown(
                physicalCutRow,
                control: false,
                shift: false,
                x: 1,
                y: physicalCutRow * 23,
                timestampMilliseconds: timestamp);
            controller.DropSelectedCutsOnPlaylist();
            timestamp += 1_000;
        }

        return controller;
    }

    private static FakeLookup Lookup() => new(new LegacyStockSearchData(
        "query",
        ["삼성전자", "넥스트(NXT)"],
        [
            new LegacyStockIdentity(LegacyDomesticStockMarket.Kospi, "삼성전자", "005930"),
            new LegacyStockIdentity(LegacyDomesticStockMarket.NxtKospi, "넥스트(NXT)", "A00001")
        ]));

    private sealed class FakeLookup : ILegacyStockLookup
    {
        private readonly LegacyStockSearchData _result;

        public FakeLookup(LegacyStockSearchData result)
        {
            _result = result;
        }

        public int CallCount { get; private set; }

        public Task<LegacyStockSearchData> SearchAsync(
            string query,
            CancellationToken cancellationToken = default)
        {
            CallCount++;
            return Task.FromResult(_result);
        }
    }

    private sealed class StaticIndustryService : IIndustrySelectionService
    {
        private readonly IReadOnlyList<IndustrySelection> _rows;

        public StaticIndustryService(IReadOnlyList<IndustrySelection> rows)
        {
            _rows = rows;
        }

        public Task<IReadOnlyList<IndustrySelection>> GetAsync(
            IndustryMarket market,
            CancellationToken cancellationToken = default) => Task.FromResult(_rows);
    }

    private sealed class StaticThemeService : IThemeSelectionService
    {
        private readonly ThemeSelectionIdentity _identity;
        private readonly IReadOnlyList<ThemeItemPreview> _items;

        public StaticThemeService(
            ThemeSelectionIdentity identity,
            IReadOnlyList<ThemeItemPreview> items)
        {
            _identity = identity;
            _items = items;
        }

        public int PreviewCalls { get; private set; }

        public Task<ThemeSearchResult> SearchAsync(
            string query,
            ThemeSession nxtSession,
            int maximumResults = LegacyThemeSelectionService.DefaultMaximumResults,
            CancellationToken cancellationToken = default) => Task.FromResult(
                new ThemeSearchResult(
                    query,
                    nxtSession,
                    DateTimeOffset.UtcNow,
                    [new ThemeSelectorItem(_identity, DataSourceKind.Oracle)],
                    false));

        public Task<ThemePreviewResult> PreviewAsync(
            ThemeSelectionIdentity identity,
            int maximumItems = LegacyThemeSelectionService.DefaultMaximumPreviewItems,
            CancellationToken cancellationToken = default)
        {
            PreviewCalls++;
            return Task.FromResult(
                new ThemePreviewResult(
                    _identity,
                    DateTimeOffset.UtcNow,
                    _items,
                    false));
        }
    }

    private sealed class StaticExpertService : IExpertSelectionService
    {
        private static readonly ExpertSelectionIdentity Identity = new("0001", "전문가A");

        public Task<ExpertSearchResult> SearchAsync(
            string query = "",
            int maximumResults = LegacyExpertSelectionService.DefaultMaximumResults,
            CancellationToken cancellationToken = default) => Task.FromResult(
                new ExpertSearchResult(
                    query.Trim(),
                    DateTimeOffset.UtcNow,
                    [new ExpertSelectorItem(Identity, DataSourceKind.Oracle)],
                    false));

        public Task<ExpertPreviewResult> PreviewAsync(
            ExpertSelectionIdentity identity,
            int maximumItems = LegacyExpertSelectionService.DefaultMaximumPreviewItems,
            CancellationToken cancellationToken = default) => Task.FromResult(
                new ExpertPreviewResult(
                    Identity,
                    DateTimeOffset.UtcNow,
                    Enumerable.Range(1, 6)
                        .Select(index => new ExpertRecommendationPreview(
                            index,
                            index.ToString("D6", System.Globalization.CultureInfo.InvariantCulture),
                            $"추천{index}",
                            10_000m + index))
                        .ToArray(),
                    false));
    }

    private sealed class StaticTradingHaltService : ITradingHaltSelectionService
    {
        public Task<TradingHaltSelectionResult> SearchAsync(
            string query = "",
            int maximumResults = LegacyTradingHaltSelectionService.DefaultMaximumResults,
            CancellationToken cancellationToken = default) => Task.FromResult(
                new TradingHaltSelectionResult(
                    query.Trim(),
                    DateTimeOffset.UtcNow,
                    [new TradingHaltSelection(TradingHaltMarket.Kospi, "005930", "삼성전자")],
                    false));
    }
}