// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
// See the LICENCE file in the repository root for full licence text.

using System.Linq;
using NUnit.Framework;
using osu.Framework.Allocation;
using osu.Framework.Graphics.Containers;
using osu.Framework.Testing;
using osu.Game.Graphics.UserInterface;
using osu.Game.Overlays;
using osu.Game.Overlays.Settings.Sections;
using osu.Game.Overlays.Settings.Sections.Input;
using osuTK.Input;

namespace osu.Game.Tests.Visual.Settings
{
    [TestFixture]
    public class TestSceneSettingsPanel : OsuManualInputManagerTestScene
    {
        private SettingsPanel settings;
        private DialogOverlay dialogOverlay;

        [SetUpSteps]
        public void SetUpSteps()
        {
            AddStep("create settings", () =>
            {
                settings?.Expire();

                Add(settings = new SettingsOverlay
                {
                    State = { Value = Visibility.Visible }
                });
            });
        }

        [Test]
        public void ToggleVisibility()
        {
            AddWaitStep("wait some", 5);
            AddToggleStep("toggle visibility", visible => settings.ToggleVisibility());
        }

        [Test]
        public void TestTextboxFocusAfterNestedPanelBackButton()
        {
            AddUntilStep("sections loaded", () => settings.SectionsContainer.Children.Count > 0);
            AddUntilStep("top-level textbox focused", () => settings.SectionsContainer.ChildrenOfType<FocusedTextBox>().FirstOrDefault()?.HasFocus == true);

            AddStep("open key binding subpanel", () =>
            {
                settings.SectionsContainer
                        .ChildrenOfType<InputSection>().FirstOrDefault()?
                        .ChildrenOfType<OsuButton>().FirstOrDefault()?
                        .TriggerClick();
            });

            AddUntilStep("binding panel textbox focused", () => settings
                                                                .ChildrenOfType<KeyBindingPanel>().FirstOrDefault()?
                                                                .ChildrenOfType<FocusedTextBox>().FirstOrDefault()?.HasFocus == true);

            AddStep("Press back", () => settings
                                        .ChildrenOfType<KeyBindingPanel>().FirstOrDefault()?
                                        .ChildrenOfType<SettingsSubPanel.BackButton>().FirstOrDefault()?.TriggerClick());

            AddUntilStep("top-level textbox focused", () => settings.SectionsContainer.ChildrenOfType<FocusedTextBox>().FirstOrDefault()?.HasFocus == true);
        }

        [Test]
        public void TestTextboxFocusAfterNestedPanelEscape()
        {
            AddUntilStep("sections loaded", () => settings.SectionsContainer.Children.Count > 0);
            AddUntilStep("top-level textbox focused", () => settings.SectionsContainer.ChildrenOfType<FocusedTextBox>().FirstOrDefault()?.HasFocus == true);

            AddStep("open key binding subpanel", () =>
            {
                settings.SectionsContainer
                        .ChildrenOfType<InputSection>().FirstOrDefault()?
                        .ChildrenOfType<OsuButton>().FirstOrDefault()?
                        .TriggerClick();
            });

            AddUntilStep("binding panel textbox focused", () => settings
                                                                .ChildrenOfType<KeyBindingPanel>().FirstOrDefault()?
                                                                .ChildrenOfType<FocusedTextBox>().FirstOrDefault()?.HasFocus == true);

            AddStep("Escape", () => InputManager.Key(Key.Escape));

            AddUntilStep("top-level textbox focused", () => settings.SectionsContainer.ChildrenOfType<FocusedTextBox>().FirstOrDefault()?.HasFocus == true);
        }

        [BackgroundDependencyLoader]
        private void load()
        {
            Add(dialogOverlay = new DialogOverlay
            {
                Depth = -1
            });

            Dependencies.Cache(dialogOverlay);
        }
    }
}