namespace labelUtility
{


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

[CustomPropertyDrawer(typeof(LabelSet))]
public class LabelSetDrawer : PropertyDrawer
{
    #region Config

    private float LineSpan = 2;
    private float LineHeight = 16;
    private float ButtonSpan = 4;
    private float ButtonHeight = 32;

    private LabelSet Instance;
    private SerializedProperty Name;
    private SerializedProperty LabelScriptPath;
    private SerializedProperty LabelScriptName;
    private SerializedProperty LabePrefix;
    private SerializedProperty LabelScript;
    private SerializedProperty ComponentScriptPath;
    private SerializedProperty ComponentScriptName;
    private SerializedProperty ComponentPrefix;
    private SerializedProperty NameExcludeString;
    private SerializedProperty ComponentScript;
        private SerializedProperty Languages;
    private SerializedProperty Prefabs;
    private SerializedProperty ComponentPurviews;
    
    #endregion

    public override float GetPropertyHeight(SerializedProperty property, GUIContent label)
    {
        Instance = (LabelSet) InstanceUtility.GetObject(fieldInfo, property);

        return Instance.TotalHeight;
    }

    public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
    {
        Instance = (LabelSet) InstanceUtility.GetObject(fieldInfo, property);
        Name = property.FindPropertyRelative("Name");
        LabelScriptPath = property.FindPropertyRelative("LabelScriptPath");
        LabelScriptName = property.FindPropertyRelative("LabelScriptName");
        LabePrefix = property.FindPropertyRelative("LabePrefix");
        LabelScript = property.FindPropertyRelative("LabelScript");
        ComponentScriptPath = property.FindPropertyRelative("ComponentScriptPath");
        ComponentScriptName = property.FindPropertyRelative("ComponentScriptName");
        ComponentPrefix = property.FindPropertyRelative("ComponentPrefix");
        NameExcludeString = property.FindPropertyRelative("NameExcludeString");
        ComponentScript = property.FindPropertyRelative("ComponentScript");
        Languages = property.FindPropertyRelative("Languages");
        Prefabs = property.FindPropertyRelative("Prefabs");
        ComponentPurviews = property.FindPropertyRelative("ComponentPurviews");


        float originY = position.y;

        position.height = LineHeight;
        Instance.FoldOut = EditorGUI.Foldout(position, Instance.FoldOut, new GUIContent(Instance.Name));
        position.y += LineHeight + LineSpan;

        if (Instance.FoldOut)
        {
            EditorGUI.indentLevel++;
            position = DrawProperty(position, Name);
            position = DrawProperty(position, LabelScriptPath);
            position = DrawProperty(position, LabelScriptName);
            position = DrawProperty(position, LabePrefix);
            position = DrawProperty(position, LabelScript);
            position = DrawProperty(position, ComponentScriptPath);
            position = DrawProperty(position, ComponentScriptName);
            position = DrawProperty(position, ComponentPrefix);
            position = DrawProperty(position, NameExcludeString);
            position = DrawProperty(position, ComponentScript);
                position = DrawPropertys(position, Languages);
            position = DrawPropertys(position, Prefabs);
            position = DrawButton(position, "Create Label Script", ()=> {LabelUtility.CreateLabelScript(Instance);});
            position = DrawButton(position, "Create Component Script", ()=> { LabelUtility.CreateComponentScript(Instance); });
            position = DrawButton(position, "Create Label From Prefab", ()=> { LabelUtility.CreateLabelFromPrefab(Instance); });
            position = DrawButton(position, "Create Label From LanguageXml", ()=> { LabelUtility.CreateLabelFromLanguageXml(Instance); });  //todo Ôö¼Ó
                position = DrawPropertys(position, ComponentPurviews);
                position = DrawButton(position, "Create Components From Prefab", ()=> { LabelUtility.CreateComponentsFromPrefab(Instance); });
        }

        Instance.TotalHeight = position.y - originY;
    }

    private Rect DrawButton(Rect position, string name, Action OnClick)
    {
        Rect contentPosition = position;
        contentPosition.height = ButtonHeight;
        if (GUI.Button(contentPosition, name))
        {
            OnClick.Invoke();
        }
        position.y += ButtonHeight + ButtonSpan;
        return position;
    }

    private Rect DrawProperty(Rect position, SerializedProperty property)
    {
        Rect contentPosition = position;
        contentPosition.height = LineHeight;
        contentPosition = EditorGUI.PrefixLabel(contentPosition, new GUIContent(property.displayName));
        EditorGUI.PropertyField(contentPosition, property, GUIContent.none);
        position.y += LineHeight + LineSpan;
        return position;
    }

    private Rect DrawPropertys(Rect position, SerializedProperty property)
    {
        Rect contentPosition = position;
        contentPosition.height = LineHeight;
        contentPosition = EditorGUI.PrefixLabel(contentPosition, new GUIContent(property.displayName));
        EditorGUI.PropertyField(contentPosition, property, GUIContent.none, true);
        if (property.isExpanded)
        {
            position.y += (LineHeight + LineSpan)*(property.arraySize + 2);
        }
        else
        {
            position.y += LineHeight + LineSpan;
        }
        return position;
    }
}


}