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

public class ChatTextManager : MonoBehaviour
{
    public int TextCount;
    private Vector2 initSize;
    public RectTransform parent;
    public Text text;
    public RectTransform rect;
    public ScrollRect scrollRect;

    public Text TextInfo;
    // Start is called before the first frame update
    void Start()
    {

        initSize = parent.sizeDelta;
    }

    public void DeletText()
    {
        TextCount = 0;
        text.text = "";
        TextInfo.text = "信息-" + TextCount+"";
    }

    public void SetText(string msg)
    {
        TextCount++;
        text.text += "\n" + "\n" + msg;
        TextInfo.text = "信息-" + TextCount + "";
        scrollRect.verticalNormalizedPosition = 0f;
    }

    // Update is called once per frame
    void Update()
    {
        // 获取Text的Size
        Vector2 v2 = rect.rect.size;
        // width保持不变
        rect.SetSizeWithCurrentAnchors(RectTransform.Axis.Horizontal, v2.x);
        // 动态设置height
        rect.SetSizeWithCurrentAnchors(RectTransform.Axis.Vertical, text.preferredHeight);
        if(initSize.y < v2.y)
        {
            parent.sizeDelta = rect.rect.size;
        }
    }

    public void joinRoom()
    {
        SetText("<color=yellow>您加入了房间</color>");
    }

    public void createRoom()
    {
        SetText("您创建了房间");
    }

    public void leaveRoom(string n)
    {
        SetText(n+"  离开了房间");
    }

    public void otherJoinRoom(string n)
    {
        SetText(n + "  加入了房间");
    }

    public void SetTextManager(string method,JsonData data)
    {
        switch(method)
        {
            case "joinRoom":
                joinRoom();
                if (data["room"]["users"].Count > 0)
                {
                    for (int i = 0; i < data["room"]["users"].Count; i++)
                    {
                        otherJoinRoom(data["room"]["users"][i]["nickName"].ToString());
                    }
                }
                break;
            case "closed":
                if (SCRtcFactory.Instance.mSCRtcPeers != null && !string.IsNullOrEmpty(data["peerId"].ToString()))
                {
                    if (SCRtcFactory.Instance.mSCRtcPeers.getPeer(data["peerId"].ToString()) != null)
                    {
                        leaveRoom(SCRtcFactory.Instance.mSCRtcPeers.getPeer(data["peerId"].ToString()).name);
                    }
                }
                break;
            case "joined":
                otherJoinRoom(data["nickName"].ToString());
                break;
            case "chatMessage":
                SetText(data["from"].ToString()+":"+ data["chatMessage"].ToString());
                break;
        }
    }
}