using Content.Client.Chat.Managers;
using Content.Client.Chat.UI;
using Robust.Client.AutoGenerated;
using Robust.Client.UserInterface;
using Robust.Client.UserInterface.Controls;
using Robust.Client.UserInterface.XAML;
using Robust.Shared.IoC;

namespace Content.Client.Alerts.UI
{
    /// <summary>
    ///     The status effects display on the right side of the screen.
    /// </summary>
    [GenerateTypedNameReferences]
    public sealed partial class AlertsUI : Control
    {
        [Dependency] private readonly IChatManager _chatManager = default!;

        public const float ChatSeparation = 38f;

        public GridContainer Grid => AlertContainer;

        public AlertsUI()
        {
            IoCManager.InjectDependencies(this);
            RobustXamlLoader.Load(this);

            LayoutContainer.SetGrowHorizontal(this, LayoutContainer.GrowDirection.Begin);
            LayoutContainer.SetGrowVertical(this, LayoutContainer.GrowDirection.End);
            LayoutContainer.SetAnchorTop(this, 0f);
            LayoutContainer.SetAnchorRight(this, 1f);
            LayoutContainer.SetAnchorBottom(this, 1f);
            LayoutContainer.SetMarginBottom(this, -180);
            LayoutContainer.SetMarginTop(this, 250);
            LayoutContainer.SetMarginRight(this, -10);
        }

        protected override void EnteredTree()
        {
            base.EnteredTree();
            _chatManager.OnChatBoxResized += OnChatResized;
            OnChatResized(new ChatResizedEventArgs(HudChatBox.InitialChatBottom));
        }

        protected override void ExitedTree()
        {
            base.ExitedTree();
            _chatManager.OnChatBoxResized -= OnChatResized;
        }

        private void OnChatResized(ChatResizedEventArgs chatResizedEventArgs)
        {
            // resize us to fit just below the chatbox
            if (_chatManager.CurrentChatBox != null)
            {
                LayoutContainer.SetMarginTop(this, chatResizedEventArgs.NewBottom + ChatSeparation);
            }
            else
            {
                LayoutContainer.SetMarginTop(this, 250);
            }
        }

        // This makes no sense but I'm leaving it in place in case I break anything by removing it.

        protected override void Resized()
        {
            // TODO: Can rework this once https://github.com/space-wizards/RobustToolbox/issues/1392 is done,
            // this is here because there isn't currently a good way to allow the grid to adjust its height based
            // on constraints, otherwise we would use anchors to lay it out
            base.Resized();
            AlertContainer.MaxGridHeight = Height;
        }

        protected override void UIScaleChanged()
        {
            AlertContainer.MaxGridHeight = Height;
            base.UIScaleChanged();
        }
    }
}