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

public class ChatLinkEmoji :ChatLinkBase
{
    public const string InputStr = "#{0}";
    public const string _ReplaceEmojiStr = "<color=#00000000><quad material=0 size={0} x=0.1 y=0.1 width={1} height={2} /></color>";

    private string _EmojiID = "";
    private GameObject _EmojiObj = null;
    private RectTransform _EmojiTransform = null;
    private Vector2 _EmojiBaseSize = Vector2.zero;

    //private static Dictionary<string, Stack<GameObject>> _IdleMotions = new Dictionary<string, Stack<GameObject>>();

    public void SetLinkEmoji(int emojiID)
    {
        _EmojiID = emojiID.ToString();
        StrSend = StrSendStart + ((int)ChatLinkType.Emoji).ToString() + StrSplit + emojiID + StrSendEnd;
        StrInput = string.Format(InputStr, emojiID);
    }

    public override void SetLinkBySendStr(Text text, ChatHistoryItem chatHistory, string linkStr, string[] linkParams)
    {
        base.SetLinkBySendStr(text, chatHistory, linkStr, linkParams);

        StrSend = linkStr;
        StrInput = linkStr;
        if (linkParams.Length != 2)
            return;

        if (_EmojiWidthFixed < 0)
        {
            _EmojiWidthFixed = UIManager.Instance().UICanvasRect.sizeDelta.x / Screen.width;
        }
        _EmojiWidthFixed = 1;
        //_EmojiID = int.Parse(linkParams[1]);
        CreateEmojiItem(text, linkParams[1]);
        if (_EmojiObj != null)
        {
            _EmojiTransform = _EmojiObj.GetComponent<RectTransform>();
            var emojiSprite = _EmojiObj.GetComponent<Image>().sprite;
            _EmojiBaseSize = new Vector2(emojiSprite.rect.width, emojiSprite.rect.height);
            float emojiWidth = _EmojiBaseSize.x * _EmojiWidthFixed;
            float emojiHeight = _EmojiBaseSize.y * _EmojiWidthFixed;
            float quadWidth = 0.5f;
            float quadHeight = 0.5f;
            StrShow = string.Format(_ReplaceEmojiStr, emojiSprite.rect.width, quadWidth, quadHeight);
        }
    }

    public override void SetLinkAfterLayout(Text text)
    {
        base.SetLinkAfterLayout(text);
        if (_EmojiObj == null)
            return;

        if (text.cachedTextGenerator.characters.Count < StartPosInShowText + 18)
            return;

        _EmojiTransform.anchoredPosition = new Vector2(
            text.cachedTextGenerator.characters[StartPosInShowText + 17].cursorPos.x * _WidthFixed,
            text.cachedTextGenerator.characters[StartPosInShowText + 17].cursorPos.y * _HeightFixed);

        //Debug.Log("_EmojiTransform.anchoredPosition:" + _EmojiTransform.anchoredPosition);
        //if (_EmojiTransform.anchoredPosition.x >= 0 && _EmojiTransform.anchoredPosition.y <= 0)
        {
            _EmojiObj.gameObject.SetActive(true);
        }
        //_EmojiTransform.sizeDelta = new Vector2(_EmojiBaseSize.x / _WidthFixed, _EmojiBaseSize.y / _HeightFixed);
        _EmojiTransform.sizeDelta = new Vector2(_EmojiBaseSize.x, _EmojiBaseSize.y);
        //_EmojiTransform.sizeDelta = new Vector2(_EmojiBaseSize.x, _EmojiBaseSize.y);
    }

    private void CreateEmojiItem(Text text, string emojiId)
    {
        _EmojiID = emojiId;
        var emojiTrans = ResourcePool.Instance.PullEmoji("Emoji" + emojiId, text.transform);
        if(emojiTrans == null)
        {
            //_EmojiObj = ResourceManager.InstantiateResource("UI/Motion/Emoji" + emojiID, "Emoji" + emojiID) as GameObject;

            //if (_EmojiObj == null)
            return;
        }
        _EmojiObj = emojiTrans.gameObject;
        emojiTrans.localScale = Vector3.one;
        emojiTrans.localPosition = Vector3.zero;
        emojiTrans.localRotation = Quaternion.identity;
        _EmojiObj.gameObject.SetActive(false);
    }

    public override void ClearLink()
    {
        base.ClearLink();
        if (_EmojiObj == null)
            return;


        var rectTransform = _EmojiObj.transform as RectTransform;
        if (rectTransform != null)
            //RevcEmojiObj(_EmojiObj);
            GameManager.gameManager.StartCoroutine((RevcEmojiObj(_EmojiObj)));
        else
            _EmojiObj.SetActive(false);
    }

    private IEnumerator RevcEmojiObj(GameObject emojiObj)
    {
        yield return null;
        if (emojiObj != null)
        {
            ResourcePool.Instance.PushEmoji(emojiObj.transform as RectTransform);
        }
    }

    public void RemoveEmojiObj()
    {
        if (_EmojiObj != null)
        {
            ResourcePool.Instance.PushEmoji(_EmojiObj.transform as RectTransform);
        }
    }

}