using System;
using System.Collections;
using System.Collections.Generic;
using TMPro;
using UnityEngine;
using UnityEngine.Events;
using UnityEngine.EventSystems;
using UnityEngine.UI;

public class BuildingTechItemUI : MonoBehaviour, IPointerEnterHandler, IPointerExitHandler,IPointerClickHandler
{
    //79 130
    [SerializeField] private Image selectLine;
    [SerializeField] private GameObject Title;
    [SerializeField] private GameObject currentValue;
    [SerializeField] private GameObject Divider;
    
    [SerializeField] private GameObject FaithNeedPrefab;
    [SerializeField] private GameObject WoodNeedPrefab;
    [SerializeField] private GameObject BlobNeedPrefab;
    
    [SerializeField] private Transform ResourceNeedParent;
    private UnityEvent OnClickEvent = new UnityEvent();
    

    public UI_InformationPanel BelongPanel;
    private SpecailBuff_Buildings.BuildingTechItem buildingTechItem; 
    

    private void FixedUpdate()
    {
        if (faithNOT != null)
        {
            if (buildingTechItem.faithCost > Singleton<GameProcedureManager>.Instance.FaithCount)
            {
                faithNOT.color = Color.red;
            }
            else
            {
                faithNOT.color = Color.white;
            }
        }

        if (blobNOT != null)
        {
            if (buildingTechItem.blobCost > BlobManager.Instance.AvailableBlobs.Count)
            {
                blobNOT.color = Color.red;
            }
            else
            {
                blobNOT.color = Color.white;
            }
        }

        if (woodNOT != null)
        {
            if (buildingTechItem.woodCost > Singleton<GameProcedureManager>.Instance.WoodCount)
            {
                woodNOT.color = Color.red;
            }
            else
            {
                woodNOT.color = Color.white;
            }
        }
    }

    public void CreateBuildingTechItemUI(SpecailBuff_Buildings.BuildingTechItem bti,UI_InformationPanel p)
    {
        buildingTechItem = bti;
        BelongPanel = p;
        Title.GetComponent<TMP_Text>().text = bti.TechNameCN;
        HasCurrentValue();
        GenerateResourceNeed(
            bti.faithCost,bti.blobCost,bti.woodCost,
            ResourceNeedParent
        );
        OnClickEvent.AddListener(delegate ()
        {
            bti.TechNameEN.Invoke();
            bti.CostResource();
            
            int siblingIndex = BelongPanel.RemoveTechItem(bti);
            bti.InvokeNextTech(BelongPanel,siblingIndex);
        });
        
    }

    private TMP_Text faithNOT;
    private TMP_Text woodNOT;
    private TMP_Text blobNOT;
    public void GenerateResourceNeed(int faith,int blob,int wood,Transform parent)
    {
        for (int i = parent.childCount - 1; i >= 0; i--)
        {
            // 获取子物体并销毁
            Destroy(parent.GetChild(i).gameObject);
        }
        if (faith != 0)
        {
            GameObject faithNO = Instantiate(FaithNeedPrefab, parent);
            faithNOT = faithNO.transform.GetChild(0).GetComponent<TMP_Text>();
            faithNOT.text = NumUtils.IntToString(faith);
        }

        if (wood != 0)
        {
            GameObject woodNO = Instantiate(WoodNeedPrefab, parent);
            woodNOT = woodNO.transform.GetChild(0).GetComponent<TMP_Text>();
            woodNOT.text = NumUtils.IntToString(wood);
        }

        if (blob != 0)
        {
            GameObject blobNO = Instantiate(BlobNeedPrefab, parent);
            blobNOT = blobNO.transform.GetChild(0).GetComponent<TMP_Text>();
            blobNOT.text = blob.ToString();
        }
    }
    
    //检测当前资源是否满足需求
    public bool CheckUnlock(int faithNeed, int blobNeed, int woodNeed)
    {
        if (GameProcedureManager.Instance.FaithCount >= faithNeed &&
            BlobManager.Instance.AvailableBlobs.Count >= blobNeed &&
            GameProcedureManager.Instance.WoodCount >= woodNeed)
        {
            return true;
        }

        return false;
    }
    
    public void OnPointerEnter(PointerEventData eventData)
    {
        CursorManager.Instance.SetHover();
        BelongPanel.PlayUIAudio(0);
        selectLine.color = Color.white;
        BelongPanel.OpenSecondInfo(buildingTechItem.TechNameCN);
    }

    public void OnPointerExit(PointerEventData eventData)
    {
        CursorManager.Instance.SetNormal();
        selectLine.color = Color.black;
        BelongPanel.CloseSecondInfo();
    }
    public void OnPointerClick(PointerEventData eventData)
    {
        BelongPanel.PlayUIAudio(1);
        bool unlock = CheckUnlock(buildingTechItem.faithCost, buildingTechItem.blobCost, buildingTechItem.woodCost);
        if (unlock)
        {
            OnClickEvent.Invoke();
        }

    }

    private void HasCurrentValue()
    {
        if (buildingTechItem.currentNum != -1)
        {
            //有当前值
            Title.GetComponent<RectTransform>().sizeDelta = new Vector2(160,30);
            currentValue.SetActive(true);
            Divider.SetActive(true);
            currentValue.GetComponent<TMP_Text>().text = buildingTechItem.currentNum.ToString();
        }
        else
        {
            Title.GetComponent<RectTransform>().sizeDelta = new Vector2(210,30);
            currentValue.SetActive(false);
            Divider.SetActive(false);
        }
        
    }
}