using System.Collections;
using System.Collections.Generic;
using System.Text.RegularExpressions;
using TMPro;
using UnityEngine;
using UnityEngine.Events;
using UnityEngine.EventSystems;
using UnityEngine.Rendering;
using UnityEngine.UI;

public class LinkTextAOT : MonoBehaviour,IPointerClickHandler
{
    List<UnityAction> ClickAction;

    UnityAction otherAreaClickAction;

    public void SetLinkAction(List<UnityAction> unityActions)
    {
        ClickAction = unityActions;
    }
    public void SetOtherAreaClicked(UnityAction callback)
    {
        otherAreaClickAction = callback;
    }

    public void OnPointerClick(PointerEventData eventData)
    {
        TMP_Text pTextMeshPro = GetComponent<TMP_Text>();

        int linkIndex =
        TMP_TextUtilities.FindIntersectingLink(pTextMeshPro, eventData.position, eventData.pressEventCamera);
        // If you are not in a Canvas using Screen Overlay, put your camera instead of null

        if (linkIndex != -1)
        {
            TMP_LinkInfo linkInfo = pTextMeshPro.textInfo.linkInfo[linkIndex];
            //Application.OpenURL(linkInfo.GetLinkID());

            if (ClickAction != null && linkIndex < ClickAction.Count)
            {
                ClickAction[linkIndex]();
            }
        }
        else
        {
            otherAreaClickAction?.Invoke();
        }
    }

    /// <summary>
    /// 设置含超链接跳转<link>的文本
    /// </summary>
    /// <param name="text"></param>
    public void SetText(string text)
    {
        TMP_Text pTextMeshPro = GetComponent<TMP_Text>();
        pTextMeshPro.text = text;

        string pattern = "<link=\"(.*?)\">(.*?)</link>";
        System.Text.RegularExpressions.MatchCollection matches = System.Text.RegularExpressions.Regex.Matches(text, pattern);

        List<UnityAction> LinkActions = new();
        foreach (System.Text.RegularExpressions.Match match in matches)
        {
            string linkID = match.Groups[1].Value;
            string linkText = match.Groups[2].Value;

            LinkActions.Add(() => Application.OpenURL(linkID));
        }
        SetLinkAction(LinkActions);
    }
}