using System.IO;
using System.Linq;
using System.Numerics;
using AcDream.App.UI;
using AcDream.App.UI.Layout;
using AcDream.Content;
using DatReaderWriter;
using DatReaderWriter.Options;

namespace AcDream.App.Tests.UI.Layout;

/// <summary>
/// Installed-retail-DAT acceptance gate for Campaign CC slice CC4. Opt in
/// with <c>ACDREAM_PROBE_LIVE_MOUNT=1</c>; <c>ACDREAM_DAT_DIR</c> can
/// override the ordinary Documents/Asheron's Call location. Mirrors
/// <see cref="CharacterManagementLiveDatTests"/>'s pattern: sweeps the
/// authored master-shell and page ids the campaign plan and CC4's own
/// decomp research cite, pinning them against the real installed layout.
/// </summary>
public sealed class CharacterCreationLiveDatTests
{
    private static string DatDirectory =>
        Environment.GetEnvironmentVariable("ACDREAM_DAT_DIR")
        ?? Path.Combine(
            Environment.GetFolderPath(Environment.SpecialFolder.UserProfile),
            "Documents",
            "Asheron's Call");

    [InstalledDatFact]
    public void EnumTable5_ResolvesTheMasterShellRootAndChildren()
    {
        using var dats = new DatCollection(DatDirectory, DatAccessType.Read);

        uint layoutId = RetailDataIdResolver.Resolve(
            dats,
            CharacterCreationUiController.RootEnum,
            5u);
        Assert.NotEqual(0u, layoutId);
        Console.WriteLine(
            $"[CC4-DAT] category=5 enum=0x10000039 -> DID=0x{layoutId:X8}");

        ImportedLayout screen = BuildSelected(
            dats, layoutId, CharacterCreationUiController.RootElementId);
        Assert.Equal(
            CharacterCreationUiController.RootElementId,
            screen.Root.DatElementId);

        // CC4 re-review R5: the fixed-canvas arbiter THROWS if two concurrent
        // screens declare different sizes, and char-management's root is
        // DAT-pinned at 800x600 (CharacterManagementLiveDatTests). Chargen
        // declares on top of it on the exact user-gate path, so its authored
        // extent must be pinned too — an unequal extent is now a crash at
        // Open(), not a cosmetic drift. Observe, don't infer (C4 closeout).
        ElementInfo rootInfo = Assert.IsType<ElementInfo>(
            LayoutImporter.ImportInfos(
                dats,
                layoutId,
                CharacterCreationUiController.RootElementId));
        Assert.Equal(800f, rootInfo.Width);
        Assert.Equal(600f, rootInfo.Height);

        Assert.IsAssignableFrom<UiElement>(
            screen.FindElement(CharacterCreationUiController.ProgressBarElementId));
        AssertButton(screen, CharacterCreationUiController.BackElementId);
        AssertButton(screen, CharacterCreationUiController.NextElementId);
        AssertButton(screen, CharacterCreationUiController.FinishElementId);
        AssertButton(screen, CharacterCreationUiController.HelpElementId);
        AssertButton(screen, CharacterCreationUiController.ExitElementId);
        AssertButton(screen, CharacterCreationUiController.RandomElementId);
        Assert.IsAssignableFrom<UiElement>(
            screen.FindElement(CharacterCreationUiController.MasterPageElementId));
        foreach (uint pageId in new[]
        {
            CharacterCreationUiController.HeritagePageElementId,
            CharacterCreationUiController.ProfessionPageElementId,
            CharacterCreationUiController.SkillsPageElementId,
            CharacterCreationUiController.AppearancePageElementId,
            CharacterCreationUiController.TownPageElementId,
            CharacterCreationUiController.SummaryPageElementId,
        })
        {
            Assert.IsAssignableFrom<UiElement>(screen.FindElement(pageId));
        }
        AssertButton(screen, CharacterCreationUiController.HeritageTabElementId);
        AssertButton(screen, CharacterCreationUiController.ProfessionTabElementId);
        AssertButton(screen, CharacterCreationUiController.SkillsTabElementId);
        AssertButton(screen, CharacterCreationUiController.AppearanceTabElementId);
        AssertButton(screen, CharacterCreationUiController.TownTabElementId);
        AssertButton(screen, CharacterCreationUiController.SummaryTabElementId);
    }

    [InstalledDatFact]
    public void MountsThroughTheControllerAgainstLiveResources()
    {
        using var dats = new DatCollection(DatDirectory, DatAccessType.Read);
        uint layoutId = RetailDataIdResolver.Resolve(
            dats,
            CharacterCreationUiController.RootEnum,
            5u);
        ImportedLayout screen = BuildSelected(
            dats, layoutId, CharacterCreationUiController.RootElementId);

        var host = new UiRoot();
        var dialogs = MakeDialogFactory(dats, host);
        var bindings = new CharacterCreationRuntimeBindings(
            () => null,
            _ => default,
            _ => default,
            _ => default,
            (_, _) => default,
            (_, _) => default,
            _ => default,
            _ => default,
            _ => default,
            _ => default,
            _ => default,
            () => { });

        UiElement? ResolveTemplate(uint templateLayoutId, uint templateElementId) =>
            LayoutImporter.Import(
                dats, templateLayoutId, templateElementId, _ => (0u, 0, 0), null)?.Root;

        CharacterCreationUiController? controller =
            CharacterCreationUiController.CreateDetached(
                host, screen, ResolveTemplate, dialogs, bindings,
                new CharacterCreationUiController.DialogStrings(
                    "Are you sure?", "No name", "Unspent credits", "Randomize?", "Name too long"));
        Assert.NotNull(controller);
        controller!.AttachAndTick();
        controller.Dispose();
        dialogs.Dispose();
    }

    /// <summary>13 heritage buttons, the description text, all present as
    /// authored (Heritage page — <c>gmCGHeritagePage::InitializePage @
    /// 0x00483a10</c>).</summary>
    [InstalledDatFact]
    public void HeritagePage_HasAllThirteenRaceButtonsAndDescriptionText()
    {
        using var dats = new DatCollection(DatDirectory, DatAccessType.Read);
        uint layoutId = RetailDataIdResolver.Resolve(
            dats,
            CharacterCreationUiController.RootEnum,
            5u);
        ImportedLayout screen = BuildSelected(
            dats, layoutId, CharacterCreationUiController.RootElementId);

        UiElement heritageRoot = Assert.IsAssignableFrom<UiElement>(
            screen.FindElement(CharacterCreationUiController.HeritagePageElementId));

        uint[] heritageButtonIds =
        [
            0x100003BFu, 0x100003C1u, 0x100003C2u, 0x100003C3u,
            0x10000590u, 0x100005A9u, 0x100005E8u, 0x100005F1u,
            0x100005C4u, 0x10000591u, 0x100005BFu, 0x100005C7u,
            0x100005C8u,
        ];
        foreach (uint buttonId in heritageButtonIds)
        {
            Assert.IsType<UiButton>(
                UiElement.FindDescendant(heritageRoot, buttonId));
        }
        Assert.IsType<UiText>(
            UiElement.FindDescendant(heritageRoot, 0x100003C4u));
    }

    /// <summary>Seven template buttons, six attribute sliders (each with a
    /// lock button + scrollbar + value text), and the four derived
    /// displays (Profession page —
    /// <c>gmCGProfessionPage::InitializePage @ 0x00482d50</c>).</summary>
    [InstalledDatFact]
    public void ProfessionPage_HasTemplateButtonsSlidersAndDisplays()
    {
        using var dats = new DatCollection(DatDirectory, DatAccessType.Read);
        uint layoutId = RetailDataIdResolver.Resolve(
            dats,
            CharacterCreationUiController.RootEnum,
            5u);
        ImportedLayout screen = BuildSelected(
            dats, layoutId, CharacterCreationUiController.RootElementId);

        UiElement professionRoot = Assert.IsAssignableFrom<UiElement>(
            screen.FindElement(CharacterCreationUiController.ProfessionPageElementId));

        uint[] templateButtonIds =
        [
            0x100003D9u, 0x100003DAu, 0x100003DBu,
            0x100003DCu, 0x100003DDu, 0x100003DEu, 0x100003DFu,
        ];
        foreach (uint buttonId in templateButtonIds)
        {
            Assert.IsType<UiButton>(
                UiElement.FindDescendant(professionRoot, buttonId));
        }

        uint[] sliderContainerIds =
        [
            0x100003E6u, 0x100003E7u, 0x100003E8u,
            0x100003E9u, 0x100003EAu, 0x100003EBu,
        ];
        foreach (uint containerId in sliderContainerIds)
        {
            UiElement container = Assert.IsAssignableFrom<UiElement>(
                UiElement.FindDescendant(professionRoot, containerId));
            Assert.IsType<UiScrollbar>(
                UiElement.FindDescendant(container, 0x100002EEu));
            // The value display authors as an editable Type-12 (retail's
            // NumberInputFilter) — DatWidgetFactory maps that to UiField,
            // not UiText. See CharacterCreationProfessionPage's ctor comment.
            Assert.IsType<UiField>(
                UiElement.FindDescendant(container, 0x100002EFu));
        }

        // Avail/health/stamina/mana each author as a Button whose Type-12
        // value child is swallowed by UiButton.ConsumesDatChildren — the
        // same substitution the Skills page's credits meter needed. See
        // CharacterCreationProfessionPage's ctor comment.
        foreach (uint containerId in new[]
                 { 0x100003E2u, 0x100003E3u, 0x100003E4u, 0x100003E5u })
        {
            Assert.IsType<UiButton>(
                UiElement.FindDescendant(professionRoot, containerId));
        }
    }

    /// <summary>Skills listbox, credits meter, info panes (Skills page —
    /// <c>gmCGSkillsPage::InitializePage @ 0x00481dd0</c>).</summary>
    [InstalledDatFact]
    public void SkillsPage_HasListboxCreditsAndInfoPanes()
    {
        using var dats = new DatCollection(DatDirectory, DatAccessType.Read);
        uint layoutId = RetailDataIdResolver.Resolve(
            dats,
            CharacterCreationUiController.RootEnum,
            5u);
        ImportedLayout screen = BuildSelected(
            dats, layoutId, CharacterCreationUiController.RootElementId);

        UiElement skillsRoot = Assert.IsAssignableFrom<UiElement>(
            screen.FindElement(CharacterCreationUiController.SkillsPageElementId));

        Assert.IsType<UiTemplateListBox>(
            UiElement.FindDescendant(skillsRoot, 0x100003F7u));
        // The credits meter (decomp id 0x100002f3) authors as a raw dat
        // child of button 0x100003f9; UiButton.ConsumesDatChildren swallows
        // it before it becomes an addressable widget, so the faithful
        // acdream substitute is the button's own Label — see
        // CharacterCreationSkillsPage's ctor comment.
        Assert.IsType<UiButton>(
            UiElement.FindDescendant(skillsRoot, 0x100003F9u));
        Assert.IsType<UiText>(
            UiElement.FindDescendant(skillsRoot, 0x100003FBu));
        Assert.IsType<UiText>(
            UiElement.FindDescendant(skillsRoot, 0x100003FCu));
    }

    /// <summary>Four town buttons + description text (Town page —
    /// <c>gmCGTownPage::InitializePage @ 0x0047c6d0</c>).</summary>
    [InstalledDatFact]
    public void TownPage_HasFourStarterAreaButtons()
    {
        using var dats = new DatCollection(DatDirectory, DatAccessType.Read);
        uint layoutId = RetailDataIdResolver.Resolve(
            dats,
            CharacterCreationUiController.RootEnum,
            5u);
        ImportedLayout screen = BuildSelected(
            dats, layoutId, CharacterCreationUiController.RootElementId);

        UiElement townRoot = Assert.IsAssignableFrom<UiElement>(
            screen.FindElement(CharacterCreationUiController.TownPageElementId));

        foreach (uint buttonId in new[] { 0x1000040Bu, 0x1000040Du, 0x1000040Eu, 0x1000040Fu })
        {
            Assert.IsType<UiButton>(
                UiElement.FindDescendant(townRoot, buttonId));
        }
        Assert.IsType<UiText>(
            UiElement.FindDescendant(townRoot, 0x10000409u));
    }

    /// <summary>
    /// GF-11b/GF-11c (Campaign CC gate round 1 Batch B). Live-DAT-measured:
    /// each town button's marker (<c>0x1000040D</c>'s own child
    /// <c>0x1000040C</c>) and its per-button name caption both carry the
    /// SAME numeric id <c>0x10000409</c> as the page-level description
    /// panel found by the sibling test above — a genuine id collision in
    /// the installed dat between two DIFFERENT elements in DIFFERENT
    /// subtrees (harmless for <c>DatWidgetFactory.BuildButton</c>'s lift,
    /// which walks the button's OWN <c>ElementInfo.Children</c> list rather
    /// than resolving by a global id lookup — but it means this test
    /// verifies the BUILT BUTTON's own <see cref="UiButton.Label"/>/
    /// <see cref="UiButton.LabelBox"/>/<see cref="UiButton.LabelColor"/>,
    /// not a second <c>FindDescendant</c> call, which would ambiguously
    /// return the unrelated page-level panel). Pins: the caption's own
    /// authored rect (0,4,100,37) survives instead of being overwritten by
    /// the marker-face-relative offset (GF-11c), and its color swaps
    /// Normal (218,167,85) -&gt; Highlight/white (255,255,255) on selection
    /// (GF-11b).
    /// </summary>
    [InstalledDatFact]
    public void TownPage_HoltburgButton_CaptionHonorsOwnRectAndRecolorsWhiteOnSelection()
    {
        using var dats = new DatCollection(DatDirectory, DatAccessType.Read);
        uint layoutId = RetailDataIdResolver.Resolve(
            dats, CharacterCreationUiController.RootEnum, 5u);
        ImportedLayout screen = BuildSelected(
            dats, layoutId, CharacterCreationUiController.RootElementId);

        UiElement townRoot = Assert.IsAssignableFrom<UiElement>(
            screen.FindElement(CharacterCreationUiController.TownPageElementId));
        UiButton holtburg = AssertButton(townRoot, 0x1000040Du);

        Assert.Equal("Holtburg", holtburg.Label);
        Assert.Equal(UiButton.LabelAlignment.Center, holtburg.LabelAlign);
        Assert.Equal((0f, 4f, 100f, 37f), holtburg.LabelBox);

        holtburg.Selected = false;
        Assert.Equal(new Vector4(218f / 255f, 167f / 255f, 85f / 255f, 1f), holtburg.LabelColor);

        holtburg.Selected = true;
        Assert.Equal(new Vector4(1f, 1f, 1f, 1f), holtburg.LabelColor);
    }

    /// <summary>
    /// GF-1 (Campaign CC gate round 1 Batch B). Live-DAT-measured: the
    /// Heritage row (<c>0x100003BFu</c>, Aluvian) authors retail's custom
    /// "Unselected"/"Selected" radio-pair state DESCRIPTORS directly on the
    /// row (property-only, no media), with the actual per-state art on its
    /// single stateful dot child (<c>0x100003C0</c>). Before this fix,
    /// <see cref="UiButton.Selected"/> committed nothing here.
    /// </summary>
    [InstalledDatFact]
    public void HeritagePage_Row_SelectedTogglesTheAuthoredRadioDotState()
    {
        using var dats = new DatCollection(DatDirectory, DatAccessType.Read);
        uint layoutId = RetailDataIdResolver.Resolve(
            dats, CharacterCreationUiController.RootEnum, 5u);
        ImportedLayout screen = BuildSelected(
            dats, layoutId, CharacterCreationUiController.RootElementId);

        UiElement heritageRoot = Assert.IsAssignableFrom<UiElement>(
            screen.FindElement(CharacterCreationUiController.HeritagePageElementId));
        UiButton aluvian = AssertButton(heritageRoot, 0x100003BFu);

        Assert.Equal("Unselected", aluvian.ActiveState);
        aluvian.Selected = true;
        Assert.Equal("Selected", aluvian.ActiveState);
        Assert.Equal(RetailUiStateIds.Selected, aluvian.ActiveRetailStateId);
        aluvian.Selected = false;
        Assert.Equal("Unselected", aluvian.ActiveState);
    }

    /// <summary>
    /// GF-1 counterpart: the Profession template row (<c>0x100003D9u</c>,
    /// Custom/Adventurer) authors the identical custom radio-pair shape on
    /// its own icon child (<c>0x100002E9</c>).
    /// </summary>
    [InstalledDatFact]
    public void ProfessionPage_TemplateButton_SelectedTogglesTheAuthoredIconState()
    {
        using var dats = new DatCollection(DatDirectory, DatAccessType.Read);
        uint layoutId = RetailDataIdResolver.Resolve(
            dats, CharacterCreationUiController.RootEnum, 5u);
        ImportedLayout screen = BuildSelected(
            dats, layoutId, CharacterCreationUiController.RootElementId);

        UiElement professionRoot = Assert.IsAssignableFrom<UiElement>(
            screen.FindElement(CharacterCreationUiController.ProfessionPageElementId));
        UiButton template = AssertButton(professionRoot, 0x100003D9u);

        Assert.Equal("Unselected", template.ActiveState);
        template.Selected = true;
        Assert.Equal("Selected", template.ActiveState);
        template.Selected = false;
        Assert.Equal("Unselected", template.ActiveState);
    }

    /// <summary>
    /// GF-8: the Appearance page's Face/Clothes sub-tab buttons
    /// (<c>0x100003A9u</c>/<c>0x100003AAu</c>) author the SAME custom
    /// radio-pair shape on their own icon child (<c>0x100002E9</c>) — same
    /// mechanism as the heritage/template rows, different page.
    /// </summary>
    [InstalledDatFact]
    public void AppearancePage_FaceClothesSubTabButtons_SelectedTogglesTheAuthoredState()
    {
        using var dats = new DatCollection(DatDirectory, DatAccessType.Read);
        uint layoutId = RetailDataIdResolver.Resolve(
            dats, CharacterCreationUiController.RootEnum, 5u);
        ImportedLayout screen = BuildSelected(
            dats, layoutId, CharacterCreationUiController.RootElementId);

        UiElement appearanceRoot = Assert.IsAssignableFrom<UiElement>(
            screen.FindElement(CharacterCreationUiController.AppearancePageElementId));

        foreach (uint buttonId in new[]
                 {
                     CharacterCreationAppearancePage.FaceButtonId,
                     CharacterCreationAppearancePage.ClothesButtonId,
                 })
        {
            UiButton button = AssertButton(appearanceRoot, buttonId);
            Assert.Equal("Unselected", button.ActiveState);
            button.Selected = true;
            Assert.Equal("Selected", button.ActiveState);
            button.Selected = false;
            Assert.Equal("Unselected", button.ActiveState);
        }
    }

    /// <summary>
    /// GF-1 family, gender-button shape: <c>0x100003A7u</c>/
    /// <c>0x100003A8u</c> author the custom Unselected/Selected media
    /// DIRECTLY on the button's own StateMedia (no separate face-segment
    /// child) — live-DAT-measured, distinct from the heritage/template/
    /// sub-tab family above. Exercises <see cref="UiButton"/>'s OTHER
    /// custom-selection-pair code path (media on the button itself, so
    /// <c>info.StateMedia.Count != 0</c> and no face child is ever
    /// computed).
    /// </summary>
    [InstalledDatFact]
    public void AppearancePage_GenderButtons_SelectedTogglesTheAuthoredState()
    {
        using var dats = new DatCollection(DatDirectory, DatAccessType.Read);
        uint layoutId = RetailDataIdResolver.Resolve(
            dats, CharacterCreationUiController.RootEnum, 5u);
        ImportedLayout screen = BuildSelected(
            dats, layoutId, CharacterCreationUiController.RootElementId);

        UiElement appearanceRoot = Assert.IsAssignableFrom<UiElement>(
            screen.FindElement(CharacterCreationUiController.AppearancePageElementId));

        foreach (uint buttonId in new[]
                 {
                     CharacterCreationAppearancePage.FemaleButtonId,
                     CharacterCreationAppearancePage.MaleButtonId,
                 })
        {
            UiButton button = AssertButton(appearanceRoot, buttonId);
            Assert.Equal("Unselected", button.ActiveState);
            button.Selected = true;
            Assert.Equal("Selected", button.ActiveState);
            button.Selected = false;
            Assert.Equal("Unselected", button.ActiveState);
        }
    }

    /// <summary>
    /// GF-9 (Campaign CC gate round 1 Batch B). Live-DAT-measured: all nine
    /// companion overlay elements (<c>SwatchOverlayIds</c>) resolve as
    /// siblings of the swatches under the color-wheel container — retail's
    /// ACTUAL click-feedback mechanism (<c>SetColor</c>'s
    /// <c>m_tColorWheel[...][0x10][iCurColor*7]-&gt;SetVisible</c>), not a
    /// state swap on the swatch buttons themselves (which author only an
    /// unnamed DirectState sprite — no Normal/Highlight media at all).
    /// </summary>
    [InstalledDatFact]
    public void AppearancePage_SwatchOverlays_AllNinePresent()
    {
        using var dats = new DatCollection(DatDirectory, DatAccessType.Read);
        uint layoutId = RetailDataIdResolver.Resolve(
            dats, CharacterCreationUiController.RootEnum, 5u);
        ImportedLayout screen = BuildSelected(
            dats, layoutId, CharacterCreationUiController.RootElementId);

        UiElement appearanceRoot = Assert.IsAssignableFrom<UiElement>(
            screen.FindElement(CharacterCreationUiController.AppearancePageElementId));

        foreach (uint overlayId in CharacterCreationAppearancePage.SwatchOverlayIds)
        {
            UiElement overlay = Assert.IsAssignableFrom<UiElement>(
                UiElement.FindDescendant(appearanceRoot, overlayId));
            // Retail's overlay ring starts hidden — SetColor only shows the
            // one at the current color index; nothing is selected before
            // any color choice runs.
            Assert.True(overlay.Visible);
        }
    }

    /// <summary>
    /// GF-10 (Campaign CC gate round 1 Batch B). Live-DAT-measured: both
    /// zoom buttons author a STANDARD Normal/Highlight(/rollover) pair —
    /// unlike the custom radio-pair family above, this is pure wiring
    /// (<see cref="CharacterCreationAppearancePage"/>'s click handlers), not
    /// a new UiButton mechanism.
    /// </summary>
    [InstalledDatFact]
    public void AppearancePage_ZoomButtons_AuthorStandardNormalHighlightPair()
    {
        using var dats = new DatCollection(DatDirectory, DatAccessType.Read);
        uint layoutId = RetailDataIdResolver.Resolve(
            dats, CharacterCreationUiController.RootEnum, 5u);
        ImportedLayout screen = BuildSelected(
            dats, layoutId, CharacterCreationUiController.RootElementId);

        UiElement appearanceRoot = Assert.IsAssignableFrom<UiElement>(
            screen.FindElement(CharacterCreationUiController.AppearancePageElementId));

        foreach (uint buttonId in new[]
                 {
                     CharacterCreationAppearancePage.ZoomInId,
                     CharacterCreationAppearancePage.ZoomOutId,
                 })
        {
            UiButton button = AssertButton(appearanceRoot, buttonId);
            Assert.Equal("Normal", button.ActiveState);
            Assert.True(button.TrySetRetailState(UiButtonStateMachine.Highlight));
            Assert.Equal("Highlight", button.ActiveState);
            Assert.True(button.TrySetRetailState(UiButtonStateMachine.Normal));
            Assert.Equal("Normal", button.ActiveState);
        }
    }

    /// <summary>The exit-warning + all per-heritage/per-town DAT string
    /// keys this slice cites actually resolve in the installed table.
    /// </summary>
    [InstalledDatFact]
    public void RequiredChargenStringsResolve()
    {
        using var dats = new DatCollection(DatDirectory, DatAccessType.Read);
        var strings = new DatStringResolver(dats);
        const uint table = 0x23000002u;

        string[] keys =
        [
            "ID_CharGen_ExitWarning",
            "ID_CharGen_Heritage_StartingSkills_Header",
            "ID_CharGen_Heritage_StartingSkills",
            "ID_CharGen_Heritage_BonusSkills_Trained_Header",
            "ID_CharGen_AluvianText_BonusSkills_Trained",
            "ID_CharGen_GaruText_BonusSkills_Trained",
            "ID_CharGen_ShoText_BonusSkills_Trained",
            "ID_CharGen_ViaText_BonusSkills_Trained",
            "ID_CharGen_ShadText_BonusSkills_Trained",
            "ID_CharGen_GearText_BonusSkills_Trained",
            "ID_CharGen_AunTText_BonusSkills_Trained",
            "ID_CharGen_EmpText_BonusSkills_Trained",
            "ID_CharGen_UndText_BonusSkills_Trained",
            "ID_CharGen_TownHowTo",
            "ID_CharGen_HoltText",
            "ID_CharGen_ShoushiText",
            "ID_CharGen_YaraqText",
            "ID_CharGen_SanamarText",
        ];
        foreach (string key in keys)
        {
            string? resolved = strings.Resolve(table, DatStringResolver.ComputeHash(key));
            Assert.True(resolved is not null, $"missing string: {key}");
        }
    }

    /// <summary>
    /// Campaign CC slice CC6b-MOUNT — the Appearance page's full authored
    /// widget catalog. Pins the campaign plan's risk item 4 finding (the
    /// color-wheel/gradient family resolves through EXISTING
    /// <c>DatWidgetFactory</c> mappings; no new widget type was needed —
    /// see <see cref="CharacterCreationAppearancePage"/>'s own class doc)
    /// against the real installed DAT: gender/Face/Clothes buttons, all
    /// nine spins, all nine color swatches, the shade scrollbar, and the
    /// viewport.
    /// </summary>
    [InstalledDatFact]
    public void AppearancePage_HasGenderChoiceSpinsSwatchesShadeAndViewport()
    {
        using var dats = new DatCollection(DatDirectory, DatAccessType.Read);
        uint layoutId = RetailDataIdResolver.Resolve(
            dats, CharacterCreationUiController.RootEnum, 5u);
        ImportedLayout screen = BuildSelected(
            dats, layoutId, CharacterCreationUiController.RootElementId);

        UiElement appearanceRoot = Assert.IsAssignableFrom<UiElement>(
            screen.FindElement(CharacterCreationUiController.AppearancePageElementId));

        AssertButton(appearanceRoot, CharacterCreationAppearancePage.FemaleButtonId);
        AssertButton(appearanceRoot, CharacterCreationAppearancePage.MaleButtonId);
        AssertButton(appearanceRoot, CharacterCreationAppearancePage.FaceButtonId);
        AssertButton(appearanceRoot, CharacterCreationAppearancePage.ClothesButtonId);
        Assert.IsAssignableFrom<UiElement>(
            UiElement.FindDescendant(appearanceRoot, CharacterCreationAppearancePage.FaceChoicesId));
        Assert.IsAssignableFrom<UiElement>(
            UiElement.FindDescendant(appearanceRoot, CharacterCreationAppearancePage.ClothesChoicesId));

        foreach (uint spinId in new[]
                 {
                     CharacterCreationAppearancePage.HairSpinId,
                     CharacterCreationAppearancePage.EyesSpinId,
                     CharacterCreationAppearancePage.NoseSpinId,
                     CharacterCreationAppearancePage.MouthSpinId,
                     CharacterCreationAppearancePage.SkinSpinId,
                     CharacterCreationAppearancePage.HeadgearSpinId,
                     CharacterCreationAppearancePage.ShirtSpinId,
                     CharacterCreationAppearancePage.TrousersSpinId,
                     CharacterCreationAppearancePage.FootwearSpinId,
                 })
        {
            UiButton spin = AssertButton(appearanceRoot, spinId);
            // Fix round F2 item 2: the current-part highlight
            // (TrySetRetailState(Normal/Highlight)) only has a visible
            // effect through UiButton's ToggleBehavior branch when the
            // authored spin actually sets DAT property 0x0B — measured
            // (not assumed, matching this file's own discipline for the
            // arrow geometry above) True for all nine spins against the
            // installed EoR dat. Pinned so a future DAT revision that
            // drops it shows up here instead of as a silently-dead
            // highlight.
            Assert.True(spin.ToggleBehavior, $"spin 0x{spinId:X8} must author ToggleBehavior for the current-part highlight to work.");
            // Re-review nit N2 (2026-08-15): ToggleBehavior alone is necessary
            // but not sufficient — UiButton.UpdateVisualState only COMMITS the
            // requested state when _availableStates actually contains it
            // (UiButton.cs's TrySetRetailState -> Selected setter ->
            // UpdateVisualState chain). MEASURED (not assumed) against the
            // installed EoR dat: TrySetRetailState(Highlight) itself always
            // reports success (the ToggleBehavior branch commits
            // unconditionally, matching TrySetRetailState's own contract),
            // but NONE of the nine spins actually carries Highlight /
            // Highlight_rollover / Highlight_pressed media on either of
            // their two consumed arrow face segments — every one of them
            // authors only Normal / Normal_rollover / Ghosted. So F2 item 2's
            // current-part highlight is CURRENTLY A NO-OP for every spin:
            // ActiveState silently stays at its prior value ("Normal")
            // instead of ever becoming "Highlight". The pre-existing
            // ToggleBehavior pin above never caught this because it only
            // checks the PROPERTY that gates the state-machine branch, not
            // whether that branch has anything to actually draw. Filed as
            // AP-222 (retail-vs-acdream status unresolved — retail's own
            // gmCGAppearancePage::SetSelection call sites are cited for
            // the SetState(1)/SetState(6) calls, not for whether retail's
            // OWN spin art authors Highlight media either). Pinned to
            // "Normal" so a future DAT revision that adds real Highlight
            // media is what makes this assertion start failing — the
            // correct trigger to update it to "Highlight" instead of a
            // silently-reintroduced dead highlight going unnoticed either way.
            Assert.True(
                spin.TrySetRetailState(UiButtonStateMachine.Highlight),
                $"spin 0x{spinId:X8} must accept a Highlight state request.");
            Assert.Equal("Normal", spin.ActiveState);

            // AP-222 CORRECTED + RESOLVED (Campaign CC gate round 1 Batch B):
            // the art half of the "no-op" stays a genuine no-op (ActiveState
            // pinned to "Normal" above, unchanged) — retail's own spin art
            // authors no Highlight media either, matching acdream. But the
            // current-part highlight is NOT presentation-dead: retail's
            // SetState(6) also recolors the spin's caption text (dat
            // property 0x1B), live-DAT-measured 218,167,85 (Normal) ->
            // 255,221,131 (Highlight), plus outline off -> on (property
            // 0x21). DatWidgetFactory.BuildButton wires this per-state style
            // unconditionally, so it is already active on `spin` from
            // TrySetRetailState(Highlight) above, independent of whether the
            // page has assigned a Label string yet.
            Assert.Equal(new Vector4(255f / 255f, 221f / 255f, 131f / 255f, 1f), spin.LabelColor);
            Assert.True(spin.Outline, $"spin 0x{spinId:X8} must outline its label in the Highlight state.");

            Assert.True(spin.TrySetRetailState(UiButtonStateMachine.Normal));
            Assert.Equal(new Vector4(218f / 255f, 167f / 255f, 85f / 255f, 1f), spin.LabelColor);
            Assert.False(spin.Outline, $"spin 0x{spinId:X8} must not outline its label in the Normal state.");
        }

        // Every color-wheel-family id resolves through EXISTING
        // DatWidgetFactory mappings (Button=1, Scrollbar=0xB, the generic
        // Type-3 fallback) — the risk-item-4 scouting result, pinned.
        foreach (uint swatchId in CharacterCreationAppearancePage.SwatchIds)
            AssertButton(appearanceRoot, swatchId);
        UiScrollbar shadeScroll = Assert.IsType<UiScrollbar>(
            UiElement.FindDescendant(appearanceRoot, CharacterCreationAppearancePage.ShadeScrollId));
        // Fix round F11: measured (not assumed) against the installed EoR
        // dat — the shade scrollbar (0x10000321) is authored VERTICAL
        // (33x85, taller than wide). Before this fix, UiScrollbar.OnEvent
        // only routed to ScalarChanged when Horizontal was true, so mouse
        // input on this control never reached SetShadeFromScalar in
        // production. Pinned so a future DAT revision that flips this
        // orientation is caught here rather than silently reintroducing the
        // dead-input bug (UiScrollbar's OnVerticalScalarEvent handles this
        // orientation now, but ONLY this orientation gets exercised in
        // production).
        Assert.False(shadeScroll.Horizontal);
        Assert.True(shadeScroll.Height > shadeScroll.Width);
        Assert.IsType<UiDatElement>(
            UiElement.FindDescendant(appearanceRoot, CharacterCreationAppearancePage.GradCircleId));

        AssertButton(appearanceRoot, CharacterCreationAppearancePage.RotateClockwiseId);
        AssertButton(appearanceRoot, CharacterCreationAppearancePage.RotateCounterClockwiseId);
        AssertButton(appearanceRoot, CharacterCreationAppearancePage.ZoomInId);
        AssertButton(appearanceRoot, CharacterCreationAppearancePage.ZoomOutId);

        Assert.IsType<UiViewport>(
            UiElement.FindDescendant(appearanceRoot, CharacterCreationAppearancePage.ViewportId));
    }

    /// <summary>
    /// Live-DAT-measured arrow geometry the page's spin OnClickAt zones are
    /// built from — every one of the nine spins is uniformly 200px wide
    /// with the two locally-reused arrow child ids
    /// (<c>0x1000030a</c> decrement / <c>0x1000030b</c> increment) at the
    /// SAME local positions. If a future DAT revision changes this shared
    /// template's geometry, this test (not a silent behavior change) is
    /// where it shows up.
    /// </summary>
    [InstalledDatFact]
    public void AppearancePage_SpinArrowGeometryIsUniformAcrossAllNineSpins()
    {
        using var dats = new DatCollection(DatDirectory, DatAccessType.Read);
        uint layoutId = RetailDataIdResolver.Resolve(
            dats, CharacterCreationUiController.RootEnum, 5u);
        ElementInfo rootInfo = Assert.IsType<ElementInfo>(
            LayoutImporter.ImportInfos(
                dats, layoutId, CharacterCreationUiController.RootElementId));
        ElementInfo? appearanceInfo = FindInfo(
            rootInfo, CharacterCreationUiController.AppearancePageElementId);
        Assert.NotNull(appearanceInfo);

        foreach (uint spinId in new[]
                 {
                     CharacterCreationAppearancePage.HairSpinId,
                     CharacterCreationAppearancePage.EyesSpinId,
                     CharacterCreationAppearancePage.NoseSpinId,
                     CharacterCreationAppearancePage.MouthSpinId,
                     CharacterCreationAppearancePage.SkinSpinId,
                     CharacterCreationAppearancePage.HeadgearSpinId,
                     CharacterCreationAppearancePage.ShirtSpinId,
                     CharacterCreationAppearancePage.TrousersSpinId,
                     CharacterCreationAppearancePage.FootwearSpinId,
                 })
        {
            ElementInfo? spin = FindInfo(appearanceInfo!, spinId);
            Assert.NotNull(spin);
            Assert.Equal(200f, spin!.Width);

            ElementInfo? decrement = spin.Children.FirstOrDefault(c => c.Id == 0x1000030Au);
            ElementInfo? increment = spin.Children.FirstOrDefault(c => c.Id == 0x1000030Bu);
            Assert.NotNull(decrement);
            Assert.NotNull(increment);
            Assert.Equal(80f, decrement!.X);
            Assert.Equal(127f, increment!.X);
            // Fix round F10: the arrow WIDTHS are what actually derive
            // CharacterCreationAppearancePage.IncrementZoneEnd (174 =
            // IncrementZoneStart 127 + this measured 47px width) — X alone
            // pins the LEFT edge of each zone, not where the increment zone
            // ends and the select-as-current-part body zone begins. Measured
            // against the installed EoR dat: both arrows are 47px wide,
            // uniformly, across all nine spins.
            Assert.Equal(47f, decrement.Width);
            Assert.Equal(47f, increment.Width);
        }
    }

    private static ElementInfo? FindInfo(ElementInfo node, uint id)
    {
        if (node.Id == id) return node;
        foreach (ElementInfo child in node.Children)
        {
            ElementInfo? found = FindInfo(child, id);
            if (found is not null) return found;
        }
        return null;
    }

    private static RetailDialogFactory MakeDialogFactory(IDatReaderWriter dats, UiRoot host)
    {
        uint dialogDid = RetailDataIdResolver.Resolve(dats, 2u, 5u);
        ImportedLayout? CreateLayout(RetailDialogType type)
        {
            uint rootElementId = RetailDialogFactory.RootElementId(type);
            return rootElementId == 0u
                ? null
                : LayoutImporter.Import(
                    dats, dialogDid, rootElementId, _ => (0u, 0, 0), null);
        }
        return new RetailDialogFactory(host, CreateLayout);
    }

    /// <summary>
    /// Campaign CC slice CC5 — the Summary page's full authored widget
    /// catalog: the name field (with <c>NameInputFilter</c>), the how-to
    /// text, the viewport (Summary's OWN <c>gmCG3DView</c>), and the
    /// listbox's THREE row templates (single-line, category-header,
    /// key/value pair) confirmed against the installed EoR dat — see
    /// <see cref="CharacterCreationSummaryPage"/>'s own class doc for the
    /// decomp citation (<c>SetSummaryText @ 0x0047b1d0</c>) each template
    /// maps to.
    /// </summary>
    [InstalledDatFact]
    public void SummaryPage_HasNameFieldListboxTemplatesAndViewport()
    {
        using var dats = new DatCollection(DatDirectory, DatAccessType.Read);
        uint layoutId = RetailDataIdResolver.Resolve(
            dats,
            CharacterCreationUiController.RootEnum,
            5u);
        ImportedLayout screen = BuildSelected(
            dats, layoutId, CharacterCreationUiController.RootElementId);

        UiElement summaryRoot = Assert.IsAssignableFrom<UiElement>(
            screen.FindElement(CharacterCreationUiController.SummaryPageElementId));

        Assert.IsType<UiScrollbar>(
            UiElement.FindDescendant(summaryRoot, CharacterCreationSummaryPage.ScrollId));
        Assert.IsType<UiField>(
            UiElement.FindDescendant(summaryRoot, CharacterCreationSummaryPage.NameTextId));
        Assert.IsType<UiText>(
            UiElement.FindDescendant(summaryRoot, CharacterCreationSummaryPage.HowToTextId));
        Assert.IsType<UiViewport>(
            UiElement.FindDescendant(summaryRoot, CharacterCreationSummaryPage.ViewportId));

        UiTemplateListBox list = Assert.IsType<UiTemplateListBox>(
            UiElement.FindDescendant(summaryRoot, CharacterCreationSummaryPage.ListBoxId));
        Assert.Equal(3, list.Templates.Count);

        UiElement? ResolveRow(int index) =>
            LayoutImporter.Import(
                dats,
                list.Templates[index].TemplateLayoutId,
                list.Templates[index].TemplateElementId,
                _ => (0u, 0, 0),
                null)?.Root;

        UiElement lineRow = Assert.IsAssignableFrom<UiElement>(ResolveRow(0));
        Assert.IsType<UiText>(UiElement.FindDescendant(lineRow, 0x100002F9u));

        UiElement headerRow = Assert.IsAssignableFrom<UiElement>(ResolveRow(1));
        Assert.IsType<UiText>(UiElement.FindDescendant(headerRow, 0x100000FEu));

        UiElement pairRow = Assert.IsAssignableFrom<UiElement>(ResolveRow(2));
        Assert.IsType<UiText>(UiElement.FindDescendant(pairRow, 0x100002FCu));
        Assert.IsType<UiText>(UiElement.FindDescendant(pairRow, 0x100002FDu));
    }

    /// <summary>
    /// CC5 re-review residual round, R3 (2026-08-16): MEASURES the
    /// installed global SkillTable's (portal.dat <c>0x0E000004</c>)
    /// <c>MinLevel</c> distribution instead of inferring it — the C4
    /// closeout's "observe, don't infer" lesson
    /// (<c>docs/research/2026-08-05-c4-closeout-handoff.md</c>).
    /// <see cref="AcDream.App.Net.RetailSkillFormula.CalculateChargenScore"/>'s
    /// own doc comment used to claim "no retail-authored skill sets
    /// MinLevel above Untrained=1" without ever reading the field; ACE's own
    /// <c>SkillBase.cs</c> annotates the same field <c>// 1-2?</c> (a hedge
    /// that observed 2s exist). This is that measurement — see the method's
    /// own real-DAT finding recorded in <c>RetailSkillFormula.cs</c>'s doc
    /// comment, corrected from this test's result.
    /// </summary>
    [InstalledDatFact]
    public void SkillTable_MinLevelDistribution_NeverExceedsTrained()
    {
        using var dats = new DatCollection(DatDirectory, DatAccessType.Read);
        DatReaderWriter.DBObjs.SkillTable? skillTable =
            dats.Get<DatReaderWriter.DBObjs.SkillTable>(0x0E000004u);
        Assert.NotNull(skillTable);

        var byMinLevel = skillTable!.Skills.Values
            .GroupBy(skill => skill.MinLevel)
            .OrderBy(g => g.Key)
            .ToDictionary(g => g.Key, g => g.Count());
        Console.WriteLine(
            "[CC5-R3-DAT] SkillTable MinLevel distribution (level=count): "
            + string.Join(", ", byMinLevel.Select(p => $"{p.Key}={p.Value}"))
            + $" (total skills: {skillTable.Skills.Count})");

        // RetailSkillFormula.CalculateChargenScore's own gate argument ("the
        // decomp's own `if (edi_1 >= MinLevel)` gate passes for both callers,
        // Trained=2 and Specialized=3") only holds while every skill's
        // MinLevel stays at or below Trained(2) — pin that as a real
        // assertion instead of leaving it as prose, so a future DAT
        // revision that adds a MinLevel=3+ skill fails HERE, not silently
        // under-credits that skill's chargen score.
        Assert.True(
            byMinLevel.Keys.All(minLevel => minLevel <= 2),
            "A skill's MinLevel exceeded 2 (Trained) in the installed DAT — "
            + "RetailSkillFormula.CalculateChargenScore's Trained/Specialized "
            + "gate argument needs re-verification for this skill.");
    }

    /// <summary>
    /// GF-13 (Campaign CC gate round 1, Batch A). Live-DAT-probe-confirmed:
    /// the GM-only labels <c>0x10000403</c> ("Non-Admin") and
    /// <c>0x10000494</c> ("Non-Envoy") both live under the Summary page
    /// (<c>0x100003D6</c>, path <c>0x100003CC &gt; 0x100003D0 &gt;
    /// 0x100003D6 &gt; {0x10000403,0x10000494}</c>) and both author dat
    /// property <c>0x3B</c> (Invisible) = <see langword="true"/> — the exact
    /// mechanism retail's <c>UIElement::OnSetAttribute @0x00462d80</c> case 8
    /// hides them by. Pins the DATA half (<see cref="ElementInfo.Invisible"/>)
    /// against the installed EoR dat.
    /// </summary>
    [InstalledDatFact]
    public void SummaryPage_NonAdminNonEnvoyLabels_AuthorInvisibleTrue()
    {
        using var dats = new DatCollection(DatDirectory, DatAccessType.Read);
        uint layoutId = RetailDataIdResolver.Resolve(
            dats, CharacterCreationUiController.RootEnum, 5u);
        ElementInfo rootInfo = Assert.IsType<ElementInfo>(
            LayoutImporter.ImportInfos(
                dats, layoutId, CharacterCreationUiController.RootElementId));

        foreach (uint targetId in new[] { 0x10000403u, 0x10000494u })
        {
            ElementInfo? found = FindInfo(rootInfo, targetId);
            Assert.NotNull(found);
            Assert.True(
                found!.Invisible,
                $"element 0x{targetId:X8} must author dat property 0x3B (Invisible) = true.");
        }
    }

    /// <summary>
    /// GF-13: the BEHAVIOR half — after the real controller mounts through
    /// <see cref="CharacterCreationUiController.CreateDetached"/> (not a raw
    /// <see cref="LayoutImporter.Build"/> call), the two authored-invisible
    /// elements are not <see cref="UiElement.Visible"/>. Exercises
    /// <c>HideAuthoredInvisibleElements</c>'s real chargen-scoped honor path,
    /// not just the data plumbing the sibling test above pins.
    /// </summary>
    [InstalledDatFact]
    public void SummaryPage_NonAdminNonEnvoyLabels_HiddenAfterControllerMount()
    {
        using var dats = new DatCollection(DatDirectory, DatAccessType.Read);
        uint layoutId = RetailDataIdResolver.Resolve(
            dats, CharacterCreationUiController.RootEnum, 5u);
        ImportedLayout screen = BuildSelected(
            dats, layoutId, CharacterCreationUiController.RootElementId);

        var host = new UiRoot();
        var dialogs = MakeDialogFactory(dats, host);
        var bindings = new CharacterCreationRuntimeBindings(
            () => null,
            _ => default,
            _ => default,
            _ => default,
            (_, _) => default,
            (_, _) => default,
            _ => default,
            _ => default,
            _ => default,
            _ => default,
            _ => default,
            () => { });

        UiElement? ResolveTemplate(uint templateLayoutId, uint templateElementId) =>
            LayoutImporter.Import(
                dats, templateLayoutId, templateElementId, _ => (0u, 0, 0), null)?.Root;

        CharacterCreationUiController? controller =
            CharacterCreationUiController.CreateDetached(
                host, screen, ResolveTemplate, dialogs, bindings,
                new CharacterCreationUiController.DialogStrings(
                    "Are you sure?", "No name", "Unspent credits", "Randomize?", "Name too long"));
        Assert.NotNull(controller);

        foreach (uint targetId in new[] { 0x10000403u, 0x10000494u })
        {
            UiElement found = Assert.IsAssignableFrom<UiElement>(
                UiElement.FindDescendant(controller!.Root, targetId));
            Assert.True(found.AuthoredInvisible, $"0x{targetId:X8} must carry AuthoredInvisible.");
            Assert.False(found.Visible, $"0x{targetId:X8} must be hidden after mount.");
        }

        controller!.Dispose();
        dialogs.Dispose();
    }

    /// <summary>
    /// GF-5 (Campaign CC gate round 1, Batch A). Live-DAT-probe-confirmed
    /// (raw <c>ElementDesc.Type</c> — the same id space as retail's
    /// <c>DynamicCast</c> tags, 1=Button, 12=Text): the Skills listbox
    /// authors exactly two templates. <c>Templates[0]</c>
    /// (<c>0x100002F4</c>) is retail's own 3-child bucket-HEADER row
    /// (unused by this port's flat-list simplification, AP-213).
    /// <c>Templates[1]</c> (<c>0x100002FF</c>) is the REAL skill row — a
    /// plain container root (rawType 3, NOT a Button), 7 children, byte-
    /// traced against <c>gmCGSkillsPage::DoSkillRecords @ 0x004817e0</c> +
    /// <c>tagSkillRecord</c>'s copy-constructor field order
    /// (<c>acclient.h</c>): name (<c>0x10000301</c>, Text), pSkillLevelText
    /// (<c>0x10000302</c>, Text), pUpCostText (<c>0x10000303</c>, Text),
    /// pSkillUpButton (<c>0x10000304</c>, Button), pSkillDownButton
    /// (<c>0x10000305</c>, Button), pDownCostText (<c>0x10000306</c>, Text).
    /// See <see cref="CharacterCreationSkillsPage"/>'s own class doc for the
    /// full trace.
    /// </summary>
    [InstalledDatFact]
    public void SkillsPage_RealRowTemplate_HasNameLevelCostTextAndArrowButtons()
    {
        using var dats = new DatCollection(DatDirectory, DatAccessType.Read);
        uint layoutId = RetailDataIdResolver.Resolve(
            dats, CharacterCreationUiController.RootEnum, 5u);
        ImportedLayout screen = BuildSelected(
            dats, layoutId, CharacterCreationUiController.RootElementId);

        UiElement skillsRoot = Assert.IsAssignableFrom<UiElement>(
            screen.FindElement(CharacterCreationUiController.SkillsPageElementId));
        UiTemplateListBox list = Assert.IsType<UiTemplateListBox>(
            UiElement.FindDescendant(skillsRoot, 0x100003F7u));

        Assert.Equal(2, list.Templates.Count);

        UiTemplateListEntry realRowTemplate = list.Templates[1];
        Assert.Equal(0x100002FFu, realRowTemplate.TemplateElementId);

        UiElement? row = LayoutImporter.Import(
            dats,
            realRowTemplate.TemplateLayoutId,
            realRowTemplate.TemplateElementId,
            _ => (0u, 0, 0),
            null)?.Root;
        UiElement realRow = Assert.IsAssignableFrom<UiElement>(row);
        Assert.IsNotType<UiButton>(realRow);

        Assert.IsType<UiText>(UiElement.FindDescendant(realRow, 0x10000301u));
        Assert.IsType<UiText>(UiElement.FindDescendant(realRow, 0x10000302u));
        Assert.IsType<UiText>(UiElement.FindDescendant(realRow, 0x10000303u));
        Assert.IsType<UiText>(UiElement.FindDescendant(realRow, 0x10000306u));
        Assert.IsType<UiButton>(UiElement.FindDescendant(realRow, 0x10000304u));
        Assert.IsType<UiButton>(UiElement.FindDescendant(realRow, 0x10000305u));

        // Templates[0] (0x100002F4) is retail's bucket-header row — unused
        // by RebuildRows, still confirmed present so a future revision that
        // drops it or changes its shape shows up here.
        Assert.Equal(0x100002F4u, list.Templates[0].TemplateElementId);
    }

    /// <summary>
    /// GF-15 (Campaign CC gate round 1, Batch A). Live-DAT-probe-confirmed
    /// during the investigation: the Message dialog catalog's popup
    /// (<c>0x3D</c>), message text (<c>0x3E</c>), and OK button
    /// (<c>0x26</c>) all author REAL, nonzero geometry (popup 400x95,
    /// centered by <see cref="RetailMessageDialogView.SizeAndCenter"/>) —
    /// ruling out a zero-size/collapsed-layout explanation for the dialog
    /// rendering nothing. The actual root cause was a Z-ORDER bug (the
    /// chargen screen's own per-tick <c>BringToFront</c> burying the dialog
    /// behind its opaque backdrop while the dialog kept exclusive
    /// <see cref="UiRoot.Modal"/> input priority — fixed in
    /// <see cref="RetailDialogFactory.Tick"/>). This test pins the geometry
    /// half so a future DAT revision that collapses the popup/message/button
    /// to zero size is caught here instead of silently reintroducing an
    /// invisible dialog.
    /// </summary>
    [InstalledDatFact]
    public void MessageDialogCatalog_PopupMessageAndOkButton_AuthorNonzeroGeometry()
    {
        using var dats = new DatCollection(DatDirectory, DatAccessType.Read);
        uint dialogDid = RetailDataIdResolver.Resolve(dats, 2u, 5u);

        ElementInfo rootInfo = Assert.IsType<ElementInfo>(
            LayoutImporter.ImportInfos(dats, dialogDid, 0x24u));
        Assert.Equal(800f, rootInfo.Width);
        Assert.Equal(600f, rootInfo.Height);

        ElementInfo popup = Assert.IsType<ElementInfo>(FindInfo(rootInfo, 0x3Du));
        Assert.True(popup.Width > 0f && popup.Height > 0f);

        ElementInfo message = Assert.IsType<ElementInfo>(FindInfo(rootInfo, 0x3Eu));
        Assert.True(message.Width > 0f && message.Height > 0f);

        ElementInfo okButton = Assert.IsType<ElementInfo>(FindInfo(rootInfo, 0x26u));
        Assert.True(okButton.Width > 0f && okButton.Height > 0f);
    }

    private static void AssertButton(ImportedLayout layout, uint elementId) =>
        Assert.IsType<UiButton>(layout.FindElement(elementId));

    private static UiButton AssertButton(UiElement root, uint elementId) =>
        Assert.IsType<UiButton>(UiElement.FindDescendant(root, elementId));

    private static ImportedLayout BuildSelected(
        IDatReaderWriter dats,
        uint layoutDid,
        uint rootId)
    {
        ElementInfo info = Assert.IsType<ElementInfo>(
            LayoutImporter.ImportInfos(dats, layoutDid, rootId));
        return LayoutImporter.Build(
            info,
            _ => (0u, 0, 0),
            null,
            null,
            new DatStringResolver(dats).Resolve);
    }
}