using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class Deck : MonoBehaviour
{
    public List<CardData> cardDataList;

    //public List<CardData> drawList;
    public List<GameObject> drawDisplayList;

    //public List<CardData> handList;
    //public List<GameObject> handDisplayList;

    //public List<CardData> discardList;
    public List<GameObject> discardDisplayList;

    public List<CardData> wasteList;
    public int randomSeed;

    public GameObject handCardTemplate;
    public GameObject cardDisplayTemplate;

    public GameObject drawListContent;
    public GameObject discardListContent;

    private int cardInHandAmount = 0;
    // Card Limit
    public int maxCardinHandLimit = 10;
    public int maxCardRemainLimit = 5;

    private GameObject reachCardinHandLimitWarningDisplay;
    private float warningDisplayCountDown;
    private float warningDisplayTime = 1.0f;

    // Start is called before the first frame update
    void Start()
    {
        reachCardinHandLimitWarningDisplay = transform.Find("Content/LimitWarning").gameObject;
        reachCardinHandLimitWarningDisplay.SetActive(false);

        randomSeed = 200;
        Random.InitState(randomSeed);
        for (int i = 0; i < cardDataList.Count; i++)
        {
            //drawList.Add(cardDataList[i]);
            GameObject tempDrawDisplay = Instantiate(cardDisplayTemplate.gameObject, transform.Find("DrawListContent/Viewport/Content"));
            tempDrawDisplay.transform.Find("Card").gameObject.GetComponent<CardDisplay>().SetCardData(cardDataList[i]);
            tempDrawDisplay.transform.Find("Button").gameObject.GetComponent<Image>().sprite = cardDataList[i].artwork;
            tempDrawDisplay.SetActive(true);
            drawDisplayList.Add(tempDrawDisplay);
        }
        drawListContent.SetActive(false);
        discardListContent.SetActive(false);
    }

    // Update is called once per frame
    void Update()
    {
        
    }

    private void FixedUpdate()
    {
        if (warningDisplayCountDown >= 0.0f)
        {
            warningDisplayCountDown -= Time.deltaTime;
            if (warningDisplayCountDown <= 0.0f)
            {
                DeactivateCardInHandLimitWarning();
            }
        }
    }

    public void DrawCards(int amount)
    {
        for (int i = 0; i < amount; i++)
        {
            if (cardInHandAmount > maxCardinHandLimit - 1)
            {
                ActivateCardInHandLimitWarning();
                return;
            }
            if (drawDisplayList.Count == 0)
            {
                Shuffle();
            }
            if (drawDisplayList.Count == 0)
            {
                return;
            }
            int randomIndex = Random.Range(0, drawDisplayList.Count);
            GameObject cardObj = Instantiate(handCardTemplate.gameObject, transform.Find("Content/HandList"));
            var tempCardData = drawDisplayList[randomIndex].transform.Find("Card").gameObject.GetComponent<CardDisplay>().cardData;
            cardObj.transform.Find("Card").gameObject.GetComponent<CardDisplay>().SetCardData(tempCardData);
            cardObj.transform.Find("Button").gameObject.GetComponent<Image>().sprite = tempCardData.artwork;
            cardObj.SetActive(true);
            cardInHandAmount++;
            //handDisplayList.Add(cardObj);
            //handList.Add(drawList[randomIndex]);
            Destroy(drawDisplayList[randomIndex]);
            drawDisplayList.RemoveAt(randomIndex);
        }
    }

    public void UseACard(int index)
    {
        // TODO: Add card type into card data
        // Chech if the card is waste card;
        //if (handList[index].cardTags == wastCard)
        //{
        //    wasteList.Add(handList[index]);
        //}
        //else
        //{
        
        //}
    }

    public void UseThisCard(GameObject card)
    {
        GameObject tempDiscardDisplay = Instantiate(cardDisplayTemplate.gameObject, transform.Find("DiscardListContent/Viewport/Content"));
        tempDiscardDisplay.SetActive(true);
        tempDiscardDisplay.transform.Find("Card").gameObject.GetComponent<CardDisplay>().SetCardData(card.transform.Find("Card").GetComponent<CardDisplay>().cardData);
        tempDiscardDisplay.transform.Find("Button").gameObject.GetComponent<Image>().sprite = card.transform.Find("Card").GetComponent<CardDisplay>().cardData.artwork;
        discardDisplayList.Add(tempDiscardDisplay);
        //discardList.Add(card.transform.Find("Card").gameObject.gameObject.GetComponent<CardDisplay>().cardData);
        //handDisplayList.Find(card);
        Destroy(card);
        cardInHandAmount--;
    }

    // When unit dead
    public void AddACardIntoDiscardList(CardData card)
    {

    }

    public void Shuffle()
    {
        // Put all cards in drawList into discardList
        List<CardData> tempCardDataList = new List<CardData>();
        for (int i = 0; i < drawDisplayList.Count; i++)
        {
            tempCardDataList.Add(drawDisplayList[i].transform.Find("Card").GetComponent<CardDisplay>().cardData);
            Destroy(drawDisplayList[i]);
        }
        drawDisplayList.Clear();
        //drawList.Clear();

        for (int i = 0; i < tempCardDataList.Count; i++)
        {
            GameObject tempCardDisplay = Instantiate(cardDisplayTemplate.gameObject,transform.Find("DrawListContent/Viewport/Content"));
            tempCardDisplay.transform.Find("Card").gameObject.GetComponent<CardDisplay>().SetCardData(tempCardDataList[i]);
            tempCardDisplay.transform.Find("Button").gameObject.GetComponent<Image>().sprite = tempCardDataList[i].artwork;
            tempCardDisplay.SetActive(true);
            drawDisplayList.Add(tempCardDisplay);
        }
        tempCardDataList.Clear();

        while (discardDisplayList.Count != 0)
        {
            int index = Random.Range(0, discardDisplayList.Count);
            GameObject tempCardDisplay = Instantiate(cardDisplayTemplate.gameObject, transform.Find("DrawListContent/Viewport/Content"));
            CardData tempCardData = discardDisplayList[index].transform.Find("Card").GetComponent<CardDisplay>().cardData;
            tempCardDisplay.transform.Find("Card").gameObject.GetComponent<CardDisplay>().SetCardData(tempCardData);
            tempCardDisplay.transform.Find("Button").gameObject.GetComponent<Image>().sprite = tempCardData.artwork;
            tempCardDisplay.SetActive(true);
            drawDisplayList.Add(tempCardDisplay);
            Destroy(discardDisplayList[index]);
            discardDisplayList.RemoveAt(index);
        };
        Debug.LogError(discardDisplayList.Count);
        discardDisplayList.Clear();
    }

    public void ActivateDisplayDrawList()
    {
        drawListContent.SetActive(true);
    }

    public void DeactivateDisplayDrawList()
    {
        drawListContent.SetActive(false);
    }

    public void ActivateDisplayDiscardList()
    {
        discardListContent.SetActive(true);
    }

    public void DeactivateDisplayDiscardList()
    {
        discardListContent.SetActive(false);
    }

    private void ActivateCardInHandLimitWarning()
    {
        reachCardinHandLimitWarningDisplay.SetActive(true);
        warningDisplayCountDown = warningDisplayTime;
    }

    private void DeactivateCardInHandLimitWarning()
    {
        reachCardinHandLimitWarningDisplay.SetActive(false);
    }

    public void EndRound()
    {
        if (cardInHandAmount > maxCardRemainLimit)
        {

        }
    }
}