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

namespace TcgEngine.UI
{
    /// <summary>
    /// One line in the deckbuilder (can contain a card or a deck title)
    /// </summary>

    public class DeckLine : MonoBehaviour, IPointerClickHandler, IPointerEnterHandler, IPointerExitHandler
    {
        public Image image;
        public Image frame;
        public Text title;
        public Text value;
        public IconValue cost;
        public UIPanel delete_btn;
        public AudioClip click_audio;
        public Material disabled_mat;
        public Material default_mat;

        public UnityAction<DeckLine> onClick;
        public UnityAction<DeckLine> onClickRight;
        public UnityAction<DeckLine> onClickDelete;

        private CardData card;
        private VariantData variant;
        private DeckData deck;
        private UserDeckData udeck;
        private bool hidden = false;
        private bool hover = false;

        void Awake()
        {

        }

        void Update()
        {
            if (delete_btn != null)
            {
                bool visi = hover || GameTool.IsMobile();
                delete_btn.SetVisible(visi && !hidden && udeck != null);
            }
        }

        public void SetLine(CardData card, VariantData variant, int quantity, bool invalid = false)
        {
            this.card = card;
            this.variant = variant;
            this.deck = null;
            this.udeck = null;
            hidden = false;

            if (title != null)
                title.text = card.title;
            if (title != null)
                title.color = variant.color;
            if (value != null)
                value.text = quantity.ToString();
            if (value != null)
                value.enabled = quantity > 1;
            if (cost != null)
                cost.value = card.mana;
            if (this.value != null)
                this.value.color = invalid ? Color.red : Color.white;
            if(invalid)
                title.color = Color.gray;

            if (image != null)
            {
                image.sprite = card.GetFullArt(variant);
                image.enabled = true;
                image.material = invalid ? disabled_mat : default_mat;
            }

            if (frame != null)
            {
                frame.sprite = variant.frame;
                frame.enabled = true;
                frame.material = invalid ? disabled_mat : default_mat;
            }

            gameObject.SetActive(true);
        }

        public void SetLine(DeckData deck)
        {
            this.card = null;
            this.deck = deck;
            this.udeck = null;
            hidden = false;

            if (this.title != null)
                this.title.text = deck.title;
            if (this.title != null)
                this.title.color = Color.white;
            if (this.value != null)
                this.value.text = deck.GetQuantity().ToString();
            if (this.value != null)
                this.value.enabled = deck.GetQuantity() > 0;

            gameObject.SetActive(true);
        }

        public void SetLine(UserData udata, UserDeckData deck)
        {
            this.card = null;
            this.deck = null;
            this.udeck = deck;
            hidden = false;

            if (this.title != null)
                this.title.text = deck.title;
            if (this.title != null)
                this.title.color = Color.white;
            if (this.value != null)
                this.value.text = deck.GetQuantity().ToString() + "/" + GameplayData.Get().deck_size;
            if (this.value != null)
                this.value.enabled = deck.GetQuantity() > 0;
            if (this.value != null)
                this.value.color = udata.IsDeckValid(deck) ? Color.white : Color.red;

            gameObject.SetActive(true);
        }

        public void SetLine(string title)
        {
            this.card = null;
            this.deck = null;
            this.udeck = null;
            hidden = false;

            if (this.title != null)
                this.title.text = title;
            if (this.title != null)
                this.title.color = Color.white;

            if (this.value != null)
                this.value.enabled = false;

            gameObject.SetActive(true);
        }

        public void Hide()
        {
            this.card = null;
            this.deck = null;
            this.udeck = null;
            hidden = true;
            hover = false;

            if (title != null)
                title.text = "";
            if (this.title != null)
                this.title.color = Color.white;
            if (value != null)
                value.text = "";
            if (value != null)
                value.enabled = true;
            if (cost != null)
                cost.value = 0;
            if (image != null)
                image.enabled = false;
            if (frame != null)
                frame.enabled = false;
            if (delete_btn != null)
                delete_btn.SetVisible(false);

            gameObject.SetActive(false);
        }


        #region ================== 对象池友好接口 ==================
        /// <summary>
        /// 重置数据并隐藏
        /// </summary>
        public void ResetLine()
        {
            card = null;
            variant = null;
            deck = null;
            udeck = null;
            hidden = true;
            hover = false;

            if (title) title.text = "";
            if (value) { value.text = ""; value.enabled = false; }
            if (cost)  cost.value = 0;
            if (image) image.enabled = false;
            if (frame) frame.enabled = false;
            if (delete_btn) delete_btn.SetVisible(false);

            gameObject.SetActive(false);
        }
        
        /// <summary>
        /// 刷新用户自定义牌组
        /// </summary>
        public void Refresh(UserData udata, UserDeckData udeck) 
        {
            SetLine(udata, udeck);
        }
        
        /// <summary>
        /// 刷新单卡
        /// </summary>
        public void Refresh(CardData card, VariantData variant, int quantity, bool invalid = false)
        {
            SetLine(card, variant, quantity, invalid);
        }
        
        #endregion
        public CardData GetCard()
        {
            return card;
        }

        public VariantData GetVariant()
        {
            return variant;
        }

        public DeckData GetDeck()
        {
            return deck;
        }

        public UserDeckData GetUserDeck()
        {
            return udeck;
        }

        public bool IsHidden()
        {
            return hidden;
        }

        public void OnPointerClick(PointerEventData eventData)
        {
            if (hidden)
                return;

            if (eventData.button == PointerEventData.InputButton.Left)
            {
                onClick?.Invoke(this);
                AudioTool.Get().PlaySFX("ui", click_audio);
            }

            if (eventData.button == PointerEventData.InputButton.Right)
            {
                onClickRight?.Invoke(this);
                AudioTool.Get().PlaySFX("ui", click_audio);
            }
        }

        public void OnClickDelete()
        {
            onClickDelete?.Invoke(this);
            AudioTool.Get().PlaySFX("ui", click_audio);
        }

        public void OnPointerEnter(PointerEventData eventData)
        {
            hover = true;
        }

        public void OnPointerExit(PointerEventData eventData)
        {
            hover = false;
        }
    }
}