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

public static class TextEllipsis 
{
    //超框显示 
    //public static void SetTextWithEllipsis(this Text textComponent, string value) {
    //    TextGenerator generator = new TextGenerator();
    //    var settings = textComponent.GetGenerationSettings(textComponent.rectTransform.rect.size);
    //    generator.Populate(value, settings);
    //    var characterCountVisible = generator.characterCountVisible;
    //    var updatedText = value;
    //    if (value.Length > characterCountVisible)
    //    {
    //        updatedText = value.Substring(0, characterCountVisible);
    //        updatedText += "…";
    //    }
    //    //Debug.Log(value + ",文本宽度为：" + generator.GetPreferredWidth(value, settings)+",width:"+ textComponent.rectTransform.rect.width);
    //    textComponent.text = updatedText;

    //}
    //加个判断文字charVisible
    public static void SetTextWithEllipsis(this Text textComponent, string value)
    {

        var rect = textComponent.rectTransform.rect;
        //Debug.Log($"[SetTextWithEllipsis] Text: {value}, Rect: {rect.width}x{rect.height}");

        //if (rect.width <= 1f || rect.height <= 1f)
        //{
        //    Debug.LogWarning("Text rect is too small or not initialized yet.");
        //}
        TextGenerator generator = new TextGenerator();
        var settings = textComponent.GetGenerationSettings(rect.size);
        // 明确设置字体
        settings.font = textComponent.font;
        settings.fontSize = textComponent.fontSize;
        settings.fontStyle = textComponent.fontStyle;
        settings.scaleFactor = textComponent.canvas.scaleFactor;
        settings.resizeTextForBestFit = false;
        bool success = generator.Populate(value, settings);
        //Debug.Log($"Populate success: {generator.Populate(value, settings)}, characterCountVisible: {generator.characterCountVisible}, textLength: {value.Length}");
        //Debug.Log($"Font: {settings.font}, FontSize: {settings.fontSize}, Rect: {textComponent.rectTransform.rect.size}, ResizeText: {settings.resizeTextForBestFit}");
        string updatedText = value;
        var charVisible = generator.characterCountVisible;
        if (value.Length > charVisible && charVisible > 0)
        {
            int safeLength = Math.Max(0, charVisible - 1);
            safeLength = Math.Min(safeLength, value.Length);
            updatedText = value.Substring(0, safeLength) + "…";
        }
        textComponent.text = updatedText;
    }



}