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

namespace Continentis.MainGame.Card
{
    public abstract partial class CardViewBase : UIElementBase, IPointerEnterHandler, IPointerExitHandler
    {
        public CardInstance card;
        
        public Canvas canvas;
        public RectTransform cardTransform;

        public TMP_Text cardNameText, cardDescriptionText;
        public TMP_Text staminaCostText;
        public TMP_Text manaCostText;
        public TMP_Text cardTypeText;
        public Image cardBackground;
        public Image cardImage;
        public Image cardRarityMark;
        public CardViewKeywordList keywordList;

        public Image normalShadow;
        public Image hintShadow;
        public Image selectShadow;
        
        public string collectionName;
    }
    
    public partial class CardViewBase
    {
        
        public bool isOccupied;
       
        public bool isHovering;
       
        public bool isSelecting;
        
        public bool isDuringPlaying;

        private void Update()
        {
            if (isHovering)
            {
                keywordList.Scroll(Mouse.current.scroll.y.ReadValue());
            }
        }

        public virtual void OnPointerEnter(PointerEventData eventData)
        {
            if(isDuringPlaying) return;
            
            isHovering = true;

            List<string> allKeywords = new List<string>();
            allKeywords.AddRange(card.contentSubmodule.keywords);
            keywordList.Enable(allKeywords);
        }

        public virtual void OnPointerExit(PointerEventData eventData)
        {
            isHovering = false;
            keywordList.Disable();
        }
    }
    
    public partial class CardViewBase
    {
        public virtual void Setup(CardInstance card = null)
        {
            if (card != null)
            {
                this.card = card;
                isOccupied = false;
                isHovering = false;
                isSelecting = false;
                isDuringPlaying = false;
            }
            else if (this.card == null)
            {
                Debug.LogError("CardViewBase Setup called with null card!");
                return;
            }

            cardNameText.text = this.card.contentSubmodule.cardName;
            cardDescriptionText.text = this.card.contentSubmodule.interpretedFunctionText;
            cardImage.sprite = this.card.contentSubmodule.cardSprite;

            if (this.card.contentSubmodule.cardRarity != Rarity.None)
            {
                cardRarityMark.color = MainGameManager.Instance.basePrefabs.GetRarityColor(this.card.contentSubmodule.cardRarity);
            }
            else
            {
                cardRarityMark.gameObject.SetActive(false);
            }
            
            if (string.IsNullOrEmpty(collectionName)) collectionName = "Basic";
            CardViewCollection collection = MainGameManager.Instance.basePrefabs.cardViewCollections[collectionName];
            
            List<string> layoutTags = this.card.cardData.cardLayoutTags; //TODO：后续可扩展为动态布局标签
            string firstLayoutTag = layoutTags.Count > 0 ? layoutTags[0] : "Default";
            if (!collection.cardViews.ContainsKey(firstLayoutTag)) firstLayoutTag = "Default";
            cardBackground.sprite = collection.cardViews[firstLayoutTag].background;
            
            cardTypeText.text = this.card.contentSubmodule.cardType.ToString();
            
            staminaCostText.rectTransform.parent.gameObject.SetActive(true);
            staminaCostText.text = this.card.attributeSubmodule.GetRoundCurrentAttribute("StaminaCost").ToString();

            int manaCost = this.card.attributeSubmodule.GetRoundCurrentAttribute("ManaCost");
            manaCostText.rectTransform.parent.gameObject.SetActive(manaCost > 0);
            manaCostText.text = manaCost.ToString();
            
            if (this.card.HasKeyword("Unplayable")) // 如果卡牌不能被打出，则隐藏费用文本
            {
                staminaCostText.rectTransform.parent.gameObject.SetActive(false);
                manaCostText.rectTransform.parent.gameObject.SetActive(false);
            }
        }
    }
}