using AcDream.App.UI.Layout;

namespace AcDream.App.Tests.UI.Layout;

public sealed class RetailPanelUiControllerTests
{
    [Fact]
    public void ShowingPanel_HidesCurrent_AndClosingLeavesHostEmpty()
    {
        var visible = new Dictionary<string, bool>(StringComparer.Ordinal)
        {
            ["inventory"] = false,
            ["helpful"] = false,
        };
        var controller = Create(visible);
        controller.Register(7u, "inventory");
        controller.Register(4u, "helpful");

        Assert.True(controller.SetPanelVisibility(7u, true));
        Assert.True(visible["inventory"]);
        Assert.Equal(7u, controller.ActivePanelId);

        Assert.True(controller.SetPanelVisibility(4u, true));
        Assert.False(visible["inventory"]);
        Assert.True(visible["helpful"]);
        Assert.Equal(4u, controller.ActivePanelId);

        Assert.False(controller.TogglePanel(4u));
        Assert.False(visible["helpful"]);
        Assert.Null(controller.ActivePanelId);
    }

    [Fact]
    public void RestorePreviousProperty_ReopensOnlyNonRestoringPreviousPanel()
    {
        var visible = new Dictionary<string, bool>(StringComparer.Ordinal)
        {
            ["ordinary"] = false,
            ["transient"] = false,
        };
        var controller = Create(visible);
        controller.Register(1u, "ordinary", restorePrevious: false);
        controller.Register(2u, "transient", restorePrevious: true);

        controller.SetPanelVisibility(1u, true);
        controller.SetPanelVisibility(2u, true);
        Assert.False(visible["ordinary"]);
        Assert.True(visible["transient"]);

        controller.SetPanelVisibility(2u, false);
        Assert.True(visible["ordinary"]);
        Assert.False(visible["transient"]);
        Assert.Equal(1u, controller.ActivePanelId);
    }

    [Fact]
    public void ObservedPersistenceShow_UsesSameExclusiveLifecycle()
    {
        var visible = new Dictionary<string, bool>(StringComparer.Ordinal)
        {
            ["first"] = false,
            ["second"] = false,
        };
        var controller = Create(visible);
        controller.Register(1u, "first");
        controller.Register(2u, "second");
        controller.SetPanelVisibility(1u, true);

        visible["second"] = true;
        controller.ObserveWindowVisibility("second", visible: true);

        Assert.False(visible["first"]);
        Assert.True(visible["second"]);
        Assert.Equal(2u, controller.ActivePanelId);
    }

    private static RetailPanelUiController Create(Dictionary<string, bool> visible)
        => new(
            name => visible[name],
            name =>
            {
                visible[name] = true;
                return true;
            },
            name =>
            {
                visible[name] = false;
                return true;
            });
}