#if UNITY_EDITOR
using System;
using System.Collections.Generic;
using System.Reflection;
using UnityEditor;
using UnityEngine;

namespace Mountools.Tools
{
    public class ToolObjectMethodInvoker : EditorWindow
    {
        private string _search = "";
        
        private Vector2 _scrollPositionRight = Vector2.zero;

        private Dictionary<ParameterInfo, object> _parameterCache;
        private Dictionary<MethodInfo, bool> _foldoutEnableMethod;

        private bool _showGetter;
        private bool _showSetter;
        private bool _showPrivate;
        private bool _showInherit;

        private Component _debugComponent;

        private void OnGUI()
        {
            EditorGUILayout.BeginVertical();
            Draw();
            EditorGUILayout.EndVertical();
        }

        private void Draw()
        {
            if (_parameterCache == null)
                _parameterCache = new();
            
            if (_foldoutEnableMethod == null)
                _foldoutEnableMethod = new();
        
            if (Selection.gameObjects == null || Selection.gameObjects.Length < 1)
            {
                return;
            }
        
            GameObject debugObject = Selection.gameObjects[0];

            var components = debugObject.GetComponents<Component>();

            EditorGUILayout.BeginVertical();
            {
                EditorGUILayout.BeginVertical(GUILayout.Height(20));
                {
                    int select = 0;
                    var i = 0;
                    Component[] selections = components;
                    List<string> names = new List<string>();
                    foreach (var component in components)
                    {
                        names.Add(component.GetType().Name);
                            
                        if (component == _debugComponent)
                            select = i;
                        i++;
                    }
                    _debugComponent = selections[GUILayout.Toolbar(select, names.ToArray(), "toolbarbuttonRight")];

                    
                }
                EditorGUILayout.EndVertical();
            
                EditorGUILayout.BeginHorizontal();
                {
                    _showSetter = GUILayout.Toggle(_showSetter, "Setter", "TE toolbarbutton", GUILayout.Width(45));
                    _showGetter = GUILayout.Toggle(_showGetter, "Getter", "TE toolbarbutton", GUILayout.Width(45));
                    _showInherit = GUILayout.Toggle(_showInherit, "Inherit", "TE toolbarbutton", GUILayout.Width(60));
                    _showPrivate = GUILayout.Toggle(_showPrivate, "Private", "TE toolbarbutton", GUILayout.Width(60));
                    _search = EditorGUILayout.TextField("", _search, "SearchTextField");
                }
                EditorGUILayout.EndHorizontal();
                
                _scrollPositionRight = EditorGUILayout.BeginScrollView(_scrollPositionRight, "OL box NoExpand");
                {
                    DrawComponentMethodInvokerView(_debugComponent);
                }
                EditorGUILayout.EndScrollView();
            }
            EditorGUILayout.EndVertical();
        }

        private void DrawComponentMethodInvokerView(Component component)
        {
            if (component == null)
            {
                return;
            }

            var style = new GUIStyle { fontSize = 12, fontStyle = FontStyle.Bold, normal = { textColor = GUI.contentColor } };
            
#if MT_L_CHINESE
            var strMethod = "有参数方法列表";
#endif
#if MT_L_ENGLISH
            var strMethod = "Method";
#endif
            EditorGUILayout.LabelField("   " + strMethod, style);
            
            EditorGUILayout.BeginVertical();
            {
                List<MethodInfo> noParameterMethodInfos = new List<MethodInfo>();
                var methods = component.GetType().GetMethods();
                var drawCount = 0;
                foreach (var method in methods)
                {
                    if (method.Name.Contains("get_") && !_showGetter) continue;
                    if (method.Name.Contains("set_") && !_showSetter) continue;
                    if (method.IsPrivate && !_showPrivate) continue;
                    if (method.DeclaringType != method.ReflectedType && !_showInherit) continue;
                    if (_search.Trim() != "" && !method.Name.ToLower().Contains(_search.Trim().ToLower())) continue;

                    if (!method.ContainsGenericParameters && !method.IsGenericMethod && !method.IsAbstract &&
                        !method.IsConstructor && !method.IsAssembly)
                    {
                        ParameterInfo[] paremeters = method.GetParameters();
                        if (paremeters.Length > 0)
                        {
                            DrawMethodInvoker(component, method, paremeters);
                            drawCount ++;
                        }
                        else
                        {
                            noParameterMethodInfos.Add(method);
                        }
                    }
                }
#if MT_L_CHINESE
                var strNone = "无";
                var strNoParameter = "无参数方法列表";
#endif
#if MT_L_ENGLISH
                var strNone = "None";
                var strNoParameter = "No Parameter";
#endif
                if (drawCount == 0)
                {
                    EditorGUILayout.LabelField(strNone);
                }

                EditorGUILayout.Space();

                EditorGUILayout.LabelField("   " + strNoParameter, style);

                if (noParameterMethodInfos.Count < 1)
                {
                    EditorGUILayout.LabelField(strNone);
                }
                else
                {
                    foreach (var method in noParameterMethodInfos)
                    {
                        if (EditorGUILayout.LinkButton(method.Name + "();"))
                        {
                            PrintReturnValue(method, method.Invoke(component, null));
                        }
                    }
                }
            }
            EditorGUILayout.EndVertical();
        }
        
        private void DrawMethodInvoker(Component obj, MethodInfo methodInfo, ParameterInfo[] parameters)
        {
            string parameterNames = "";
            foreach (var parameter in parameters)
            {
                parameterNames += parameter.ParameterType.Name + " " + parameter.Name + ", ";
            }
            
            string n = (methodInfo.Name + " (" + parameterNames + ");")
                .Replace("Single", "float")
                .Replace("Int32", "int")
                .Replace(", );", ");");
            
            SetFoldoutMethod(methodInfo, 
                EditorGUILayout.BeginFoldoutHeaderGroup(GetFoldoutMethod(methodInfo), n, "FoldoutHeader"));
            EditorGUILayout.EndFoldoutHeaderGroup();

            EditorGUILayout.BeginHorizontal();
            {
                if (GetFoldoutMethod(methodInfo))
                {
                    EditorGUILayout.BeginVertical("OL box NoExpand");
                    {
                        bool canInvoke = true;

                        foreach (var parameter in parameters)
                        {
                            if (!DrawParameterInputField(parameter))
                                canInvoke = false;
                        }

#if MT_L_CHINESE
                        var strInvoke = "调用方法";
                        var strInvokeUnsafe = "调用方法 (非安全)";
#endif
#if MT_L_ENGLISH
                        var strInvoke = "Invoke";
                        var strInvokeUnsafe = "Invoke (Unsafe)";
#endif

                        bool click = canInvoke
                            ? GUILayout.Button(strInvoke)
                            : GUILayout.Button(strInvokeUnsafe);

                        if (click)
                        {
                            List<object> param = new List<object>();
                            foreach (var parameter in parameters)
                            {
                                param.Add(GetParameter(parameter));
                            }

                            PrintReturnValue(methodInfo, methodInfo.Invoke(obj, param.ToArray()));
                        }
                    }
                    EditorGUILayout.EndVertical();
                }
            }
            EditorGUILayout.EndHorizontal();
        }

        private bool DrawParameterInputField(ParameterInfo parameterInfo)
        {
            var type = parameterInfo.ParameterType;
            var parameterNameRaw = parameterInfo.Name;
            var parameterName = "";
            
            // Name Formatter
            var i = 0;
            foreach (var nameChar in parameterNameRaw.Trim())
            {
                if (Char.IsUpper(nameChar))
                {
                    parameterName += " " + nameChar;
                    continue;
                }

                parameterName += nameChar;
            }

            if (parameterName.Length > 1)
                parameterName = parameterName.Substring(0, 1).ToUpper() + parameterName.Substring(1);
            else
                parameterName = parameterName.ToUpper();

            if (type == typeof(int))
            {
                string t = parameterInfo.Name.ToLower();
                if (t.Contains("mask") || t.Contains("layer"))
                {
                    SetParameter(parameterInfo, 
                        EditorGUILayout.LayerField(parameterName, (int) GetParameter(parameterInfo, 0)));
                    return true;
                }
                
                SetParameter(parameterInfo, 
                    EditorGUILayout.IntField(parameterName, (int) GetParameter(parameterInfo, 0)));
                return true;
            }

            if (type == typeof(float))
            {
                SetParameter(parameterInfo, 
                    EditorGUILayout.FloatField(parameterName, (float) GetParameter(parameterInfo, 0f)));
                return true;
            }
            
            if (type == typeof(string))
            {
                string t = parameterName.ToLower();
                if (t.Contains("password") || t.Contains("pswd") || t.Contains("passwd"))
                {
                    SetParameter(parameterInfo, 
                        EditorGUILayout.PasswordField(parameterName, (string) GetParameter(parameterInfo, 0)));
                    return true;
                }
                
                SetParameter(parameterInfo, 
                    EditorGUILayout.TextField(parameterName, (string) GetParameter(parameterInfo, "")));
                return true;
            }
            
            if (type == typeof(bool))
            {
                SetParameter(parameterInfo, 
                    EditorGUILayout.Toggle(parameterName, (bool) GetParameter(parameterInfo, false)));
                return true;
            }
            
            if (type == typeof(Quaternion))
            {
                Quaternion q = (Quaternion) GetParameter(parameterInfo, Quaternion.Euler(0, 0, 0));
                Vector4 qv4 = new Vector4(q.x, q.y, q.z, q.w);
                Vector4 v = EditorGUILayout.Vector4Field(parameterName, qv4);
                SetParameter(parameterInfo, 
                    new Quaternion(v.x, v.y, v.z, v.w));
                return true;
            }
            
            if (type == typeof(Vector4))
            {
                SetParameter(parameterInfo, 
                    EditorGUILayout.Vector4Field(parameterName, (Vector4) GetParameter(parameterInfo, Vector4.zero)));
                return true;
            }
            
            if (type == typeof(Vector3))
            {
                SetParameter(parameterInfo, 
                    EditorGUILayout.Vector3Field(parameterName, (Vector3) GetParameter(parameterInfo, Vector3.zero)));
                return true;
            }
            
            if (type == typeof(Vector2))
            {
                SetParameter(parameterInfo, 
                    EditorGUILayout.Vector2Field(parameterName, (Vector2) GetParameter(parameterInfo, Vector2.zero)));
                return true;
            }
            
            if (type == typeof(Color))
            {
                SetParameter(parameterInfo, 
                    EditorGUILayout.ColorField(parameterName, (Color) GetParameter(parameterInfo, Color.black)));
                return true;
            }
            
            if (type == typeof(Gradient))
            {
                SetParameter(parameterInfo, 
                    EditorGUILayout.GradientField(parameterName, (Gradient) GetParameter(parameterInfo)));
                return true;
            }

            if (type == typeof(Bounds))
            {
                SetParameter(parameterInfo, 
                    EditorGUILayout.BoundsField(parameterName, (Bounds) GetParameter(parameterInfo)));
                return true;
            }
            
            if (type == typeof(AnimationCurve))
            {
                SetParameter(parameterInfo, 
                    EditorGUILayout.CurveField(parameterName, (AnimationCurve) GetParameter(parameterInfo)));
                return true;
            }
            
            if (type == typeof(double))
            {
                SetParameter(parameterInfo, 
                    EditorGUILayout.DoubleField(parameterName, (double) GetParameter(parameterInfo)));
                return true;
            }
            
            if (type == typeof(long))
            {
                SetParameter(parameterInfo, 
                    EditorGUILayout.LongField(parameterName, (long) GetParameter(parameterInfo)));
                return true;
            }
            
            if (type == typeof(Rect))
            {
                SetParameter(parameterInfo, 
                    EditorGUILayout.RectField(parameterName, (Rect) GetParameter(parameterInfo)));
                return true;
            }
            
            if (type == typeof(Transform))
            {
                SetParameter(parameterInfo, 
                    EditorGUILayout.ObjectField(parameterName, (Transform) GetParameter(parameterInfo), typeof(Transform), true));
                return true;
            }
            
            GUILayout.Label(parameterName);
            return false;
        }

        private void PrintReturnValue(MethodInfo methodInfo, object obj)
        {
            if (obj == null) return;

            Type type = obj.GetType();

            if (type == typeof(int) ||
                type == typeof(float) ||
                type == typeof(double) ||
                type == typeof(string) ||
                type == typeof(char) ||
                type == typeof(long))
            {
                PrintReturnValueFormat(methodInfo, obj.ToString());
                return;
            }

            if (type == typeof(Color))
            {
                Color v = (Color)obj;
                PrintReturnValueFormat(methodInfo, $"argb:{v.a},{v.r},{v.g},{v.b}");
                return;
            }
            
            if (type == typeof(Vector2))
            {
                Vector2 v = (Vector2)obj;
                PrintReturnValueFormat(methodInfo, $"xy:{v.x},{v.y}");
                return;
            }
            
            if (type == typeof(Vector3))
            {
                Vector3 v = (Vector3)obj;
                PrintReturnValueFormat(methodInfo, $"xyz:{v.x},{v.y},{v.z}");
                return;
            }
            
            if (type == typeof(Vector4))
            {
                Vector4 v = (Vector4)obj;
                PrintReturnValueFormat(methodInfo, $"xyzw:{v.x},{v.y},{v.z},{v.w}");
                return;
            }
            
            if (type == typeof(Quaternion))
            {
                Quaternion v = (Quaternion)obj;
                Vector3 e = v.eulerAngles;
                PrintReturnValueFormat(methodInfo, $"xyzw:{v.x},{v.y},{v.z},{v.w} euler:{e.x},{e.y},{e.z}");
                return;
            }
        }

        private void PrintReturnValueFormat(MethodInfo methodInfo, string value)
        {
            Debug.Log(methodInfo.Name + " Returned : ( " + methodInfo.ReturnType.Name + " ) " + value, _debugComponent);
        }

        private object GetParameter(ParameterInfo parameterInfo, object defaultValue = null)
        {
            if (_parameterCache.ContainsKey(parameterInfo))
            {
                if (_parameterCache[parameterInfo] == null && defaultValue != null)
                {
                    SetParameter(parameterInfo, defaultValue);
                }
                return _parameterCache[parameterInfo];
            }

            _parameterCache.Add(parameterInfo, defaultValue);
            return defaultValue;
        }
        
        private void SetParameter(ParameterInfo parameterInfo, object value)
        {
            if (_parameterCache.ContainsKey(parameterInfo))
            {
                _parameterCache[parameterInfo] = value;
                return;
            }

            _parameterCache.Add(parameterInfo, value);
        }

        private bool GetFoldoutMethod(MethodInfo method)
        {
            if (_foldoutEnableMethod.ContainsKey(method))
            {
                return _foldoutEnableMethod[method];
            }
            
            _foldoutEnableMethod.Add(method, false);
            return false;
        }
        
        private void SetFoldoutMethod(MethodInfo method, bool enable)
        {
            if (_foldoutEnableMethod.ContainsKey(method))
            {
                _foldoutEnableMethod[method] = enable;
                return;
            }
            
            _foldoutEnableMethod.Add(method, enable);
        }
    }
}

#endif