using System;
using Cysharp.Threading.Tasks;
using SepCore.Event;
using SepCore.Definition;
using GameFramework.Event;
using UnityGameFramework.Runtime;

namespace SepCore.UI
{
    public class ItemTooltipController : UIControllerBase<ItemTooltipContext, ItemTooltipForm>
    {
        protected override UIFormType UIFormType => UIFormType.ItemTooltipForm;

        private Action<int, int> _onRecycle;

        private bool _subscribed = false;

        protected override void SubscribeCustomEvents()
        {
            if (_subscribed) return;
            GameEntry.Event.Subscribe(ItemTooltipRecycleEventArgs.EventId, ItemTooltipRecycle);
            GameEntry.Event.Subscribe(ItemTooltipHideEventArgs.EventId, ItemTooltipHide);
            _subscribed = true;
        }

        protected override void UnsubscribeCustomEvents()
        {
            if (!_subscribed) return;
            GameEntry.Event.Unsubscribe(ItemTooltipRecycleEventArgs.EventId, ItemTooltipRecycle);
            GameEntry.Event.Unsubscribe(ItemTooltipHideEventArgs.EventId, ItemTooltipHide);
            _subscribed = false;
        }

        protected override void RefreshUI(ItemTooltipForm form, ItemTooltipContext context)
        {
            form.RefreshUI(context).Forget();
        }

        protected override void CloseLoadedFormDirect(ItemTooltipForm form)
        {
            GameEntry.UI.CloseUIForm(form);
        }

        private static ItemTooltipContext BuildContext(ItemTooltipRawData rawData)
        {
            if (rawData == null)
            {
                Log.Error("ItemTooltipController.BuildContext() rawData is null.");
                return null;
            }

            return new ItemTooltipContext(rawData);
        }

        public override async UniTask OpenUIAsync(object userData = null, float timeout = 30f)
        {
            if (userData is not ItemTooltipRawData rawData)
            {
                if (userData != null)
                {
                    Log.Warning("ItemTooltipController.OpenUIAsync() userData type is invalid.");
                }
                else
                {
                    Log.Warning("ItemTooltipController.OpenUIAsync() rawData is required.");
                }

                return;
            }

            ItemTooltipContext context = BuildContext(rawData);
            if (context == null)
            {
                Log.Warning("ItemTooltipController.OpenUIAsync() rawData is invalid.");
                return;
            }

            _onRecycle = rawData.OnRecycle;
            await OpenFormAsync(context, timeout);
        }

        public override async UniTask CloseUIAsync(object userData = null, float timeout = 30f)
        {
            _onRecycle = null;
            await base.CloseUIAsync(userData, timeout);
        }

        public override void BindUseCase(IUIUseCase useCase)
        {
            if (useCase != null)
            {
                Log.Warning("ItemTooltipController does not use a use case.");
            }
        }

        #region Event Handlers

        private void ItemTooltipRecycle(object sender, GameEventArgs e)
        {
            if (e is not ItemTooltipRecycleEventArgs args)
            {
                return;
            }

            _onRecycle?.Invoke(args.Index, args.Price);
        }

        private void ItemTooltipHide(object sender, GameEventArgs e)
        {
            if (e is not ItemTooltipHideEventArgs args) return;

            CloseUIAsync().Forget();
        }

        #endregion
    }
}