using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UIElements;
using UnityEditor;
using UnityEditor.UIElements;
using System.Text;
namespace BITKit.Editors
{
    public class StringHelper : EditorWindow
    {
        [MenuItem("Tools/Open StringHelper")]
        public static void Open()
        {
            var windows = GetWindow<StringHelper>();
            windows.Show();
            windows.titleContent = new GUIContent(nameof(StringHelper));
        }
        public void CreateGUI()
        {
            TextField textField = new("String");
            IntegerField textPaddingLimit = new("TextPaddingLimit");
            IntegerField textLengthLabel = new("TextLength");
            IntegerField byteCountLabel = new("ByteCount");
            IntegerField resultByteCount = new("ResultByteCount");

            ProgressBar byteProgressBar = new();
            ProgressBar paddingLimitBar = new();

            Label formatString = new();



            byteProgressBar.highValue = paddingLimitBar.highValue = 100;
            byteProgressBar.lowValue = paddingLimitBar.lowValue = 0;

            textField.RegisterValueChangedCallback(x => OnValueChanged(x.newValue));
            textPaddingLimit.RegisterValueChangedCallback(x => OnValueChanged(textField.text));

            textLengthLabel.isReadOnly = true;
            byteCountLabel.isReadOnly = true;

            rootVisualElement.Add(textField);
            rootVisualElement.Add(textPaddingLimit);
            rootVisualElement.Add(textLengthLabel);
            rootVisualElement.Add(byteCountLabel);
            rootVisualElement.Add(formatString);
            rootVisualElement.Add(resultByteCount);
            rootVisualElement.Add(paddingLimitBar);
            rootVisualElement.Add(byteProgressBar);


            void OnValueChanged(string value)
            {
                int byteCount = Encoding.UTF8.GetByteCount(value);
                textLengthLabel.SetValueWithoutNotify(value.Length);
                byteCountLabel.SetValueWithoutNotify(byteCount);
                byteProgressBar.SetValueWithoutNotify(byteCount);
                paddingLimitBar.SetValueWithoutNotify(textPaddingLimit.value);
                formatString.text = Padding(value);
            }
            string Padding(string value)
            {
                int byteCount = Encoding.UTF8.GetByteCount(value);
                var length = Mathf.Max(0, textPaddingLimit.value - byteCount);
                value = value + new string('x', length) + ":END";
                resultByteCount.SetValueWithoutNotify(Encoding.UTF8.GetByteCount(value));
                return value;
            }
        }
    }
}