using GeometryTD.UI;
using UnityGameFramework.Runtime;
using GeometryTD.CustomEvent;
using GeometryTD.Definition;
using GeometryTD.Procedure;

namespace GeometryTD.CustomComponent
{
    public class ShopNodeComponent : GameFrameworkComponent
    {
        private string _activeRunId;
        private int _activeNodeId;
        private RunNodeType _activeNodeType = RunNodeType.None;
        private int _activeSequenceIndex = -1;

        private ShopFormUseCase _shopFormUseCase;
        private bool _initialized;

        public void OnInit()
        {
            if (_initialized)
            {
                return;
            }

            _shopFormUseCase ??= new ShopFormUseCase();
            GameEntry.UIRouter.BindUIUseCase(UIFormType.ShopForm, _shopFormUseCase);
            _initialized = true;
        }

        public void StartShop(string runId = null, int nodeId = 0, RunNodeType nodeType = RunNodeType.None, int sequenceIndex = -1)
        {
            if (!_initialized)
            {
                OnInit();
            }

            if (_shopFormUseCase == null || !_shopFormUseCase.PrepareForOpen())
            {
                Log.Warning("ShopNodeComponent.StartShop() failed. Shop use case is unavailable or goods generation failed.");
                return;
            }

            _activeRunId = runId;
            _activeNodeId = nodeId;
            _activeNodeType = nodeType;
            _activeSequenceIndex = sequenceIndex;
            GameEntry.UIRouter.OpenUI(UIFormType.ShopForm);
            GameEntry.Event.Fire(this, NodeEnterEventArgs.Create(runId, nodeId, nodeType, sequenceIndex));
        }

        public void EndShop()
        {
            GameEntry.UIRouter.CloseUI(UIFormType.ShopForm);
            GameEntry.Event.Fire(
                this,
                NodeCompleteEventArgs.Create(
                    _activeRunId,
                    _activeNodeId,
                    _activeNodeType,
                    _activeSequenceIndex,
                    RunNodeCompletionStatus.Completed,
                    true,
                    GameEntry.PlayerInventory != null ? GameEntry.PlayerInventory.GetInventorySnapshot() : null));
            ClearActiveNodeContext();
        }

        private void ClearActiveNodeContext()
        {
            _activeRunId = null;
            _activeNodeId = 0;
            _activeNodeType = RunNodeType.None;
            _activeSequenceIndex = -1;
        }
    }
}