using UnityEngine;
using UnityEditor;
using System.Collections.Generic;

namespace YKMoonEditor
{
    public class IMGUIStyleViewer : EditorWindow
    {
        private Vector2 scrollVector2 = Vector2.zero;
        private string search = "";
        

        private string toolbarStyle = "AnimClipToolbarButton";
        private float[] columnWidth = { 300, 120, 300, 300 };
        private string[] columnName = { "Name", "Size", "Label", "Toggle" };
        private float columnSpace = 40;
        //private float styleWidth = 300;
        //private float styleHeight = 300;

        [MenuItem("Window/YKTools/GUIStyleViewer")]
        public static void InitWindow()
        {
            EditorWindow.GetWindow(typeof(IMGUIStyleViewer));
        }

        void OnGUI()
        {
            GUILayout.BeginHorizontal("HelpBox");
            search = EditorGUILayout.TextField("Search", search, "SearchTextField", GUILayout.MaxWidth(position.width / 2));
            GUILayout.EndHorizontal();
            //Columns
            GUILayout.BeginHorizontal("HelpBox");
            for(int i = 0; i < columnName.Length; i++) {
                float width = columnWidth[i] + (i > 0 ? columnSpace : 0);
                GUILayout.Label(columnName[i], toolbarStyle, GUILayout.Width(width), GUILayout.Width(width));
            }
            GUILayout.EndHorizontal();
            //Styles
            scrollVector2 = GUILayout.BeginScrollView(scrollVector2);
            foreach(GUIStyle style in GUI.skin.customStyles) {
                if(style.name.ToLower().Contains(search.ToLower())) {
                    DrawStyleItem(style);
                }
            }
            GUILayout.EndScrollView();
        }

        void DrawStyleItem(GUIStyle style)
        {
            GUILayout.BeginHorizontal("box");            
            int index = 0;
            //Name
            EditorGUILayout.SelectableLabel(style.name, "AnimClipToolbarButton", GUILayout.Width(columnWidth[index] -columnSpace));
            if(GUILayout.Button("Copy", GUILayout.Width(columnSpace))) {
                TextEditor textEditor = new TextEditor();
                textEditor.text = style.name;
                textEditor.OnFocus();
                textEditor.Copy();
            }
            index++;
            //Size
            EditorGUILayout.SelectableLabel(string.Format("{0},{1}", style.fixedWidth, style.fixedHeight), "AnimClipToolbarButton", GUILayout.Width(columnWidth[index]+ columnSpace));
            index++;
            GUILayout.Space(columnSpace);

            var options = YKMoon.ListPool<GUILayoutOption>.Get();
            float w = style.fixedWidth == 0 ? columnWidth[index] : style.fixedWidth;
            options.Add(GUILayout.Width(w));
            if(style.fixedHeight != 0) {
                options.Add(GUILayout.Height(style.fixedHeight));
            }
            options.Add(GUILayout.MinWidth(columnWidth[index]));
            options.Add(GUILayout.MaxWidth(w));
            //Label
            EditorGUILayout.SelectableLabel(style.name, style, options.ToArray());
            GUILayout.Space(columnSpace);
            index++;
            //Toggle
            var value = EditorGUILayout.Toggle(style.name, GetToggleState(style.name), style, options.ToArray());
            SetToggleState(style.name,value);
            //Toggle
            GUILayout.EndHorizontal();

            YKMoon.ListPool<GUILayoutOption>.Release(options);
        }

        private Dictionary<string, bool> toggleTrigger = new Dictionary<string, bool>();
        private bool GetToggleState(string name)
        {
            if (!toggleTrigger.ContainsKey(name)) {
                toggleTrigger.Add(name, false);
            }
            return toggleTrigger[name];
        }
        private void SetToggleState(string name, bool state)
        {
            toggleTrigger[name] = state;
        }
    }
}