using System;
using System.Collections.Generic;
using System.Drawing.Imaging;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Drawing.Text;

namespace SoraV2Utils_Agent
{
    internal class DynamicIcon
    {
        public static Icon CreateIcon(string text, Color textColor, Font font)
        {
            if (string.IsNullOrEmpty(text) || text.Length > 3)
                throw new ArgumentException("Text must be between 1 and 3 characters long.", nameof(text));

            // Create a 32x32 transparent bitmap
            using (Bitmap bitmap = new Bitmap(32, 32))
            {
                using (Graphics g = Graphics.FromImage(bitmap))
                {
                    // Set up transparency
                    g.Clear(Color.Transparent);

                    // Enable anti-aliasing for smoother text
                    g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;

                    // Determine the largest font size that will fit within 32x32
                    float maxFontSize = 48; // Start with a large font size
                    SizeF textSize;
                    Font adjustedFont;
                    do
                    {
                        maxFontSize--;
                        adjustedFont = new Font(font.FontFamily, maxFontSize, font.Style);
                        textSize = g.MeasureString(text, adjustedFont);
                    }
                    while ((textSize.Width > 42 || textSize.Height > 42) && maxFontSize > 1);

                    if (textSize.Width > 42 || textSize.Height > 42)
                    {
                        // Reduce back if the scaled size exceeds 32x32
                        maxFontSize /= 1.25f;
                        adjustedFont = new Font(font.FontFamily, maxFontSize, font.Style);
                        textSize = g.MeasureString(text, adjustedFont);
                    }

                    // Calculate the position to center the text
                    float x = (32 - textSize.Width) / 2;
                    float y = (32 - textSize.Height) / 2;

                    // Draw the text
                    using (SolidBrush textBrush = new SolidBrush(textColor))
                    {
                        g.DrawString(text, adjustedFont, textBrush, x, y);
                    }
                }

                // Create and return the icon
                return Icon.FromHandle(bitmap.GetHicon());
            }
        }
    }
}