#define UNITY_5_PLUS
#if UNITY_4_5 || UNITY_4_6 || UNITY_4_7 || UNITY_4_8 || UNITY_4_9
#undef UNITY_5_PLUS
#endif

using System;
using System.Runtime.InteropServices;
//using UnityEditor;
using System.Reflection;
using UnityEngine;
using System.Collections.Generic;
using Newtonsoft.Json;

namespace UltraControls
{
    public class JsonVector2
    {
        public CtrlType type;
        public float x;
        public float y;

        public JsonVector2(Vector2 vec2)
        {
            x = vec2.x;
            y = vec2.y;
            type = CtrlType.Vec2F;
        }

        public Vector2 To()
        {
            return new Vector2(x, y);
        }
    }

    public class JsonVector3
    {
        public CtrlType type;
        public float x;
        public float y;
        public float z;

        public JsonVector3(Vector3 vec3)
        {
            x = vec3.x;
            y = vec3.y;
            z = vec3.z;
            type = CtrlType.Vec3F;
        }

        public Vector3 To()
        {
            return new Vector3(x, y, z);
        }
    }

    public class JsonVector4
    {
        public CtrlType type;
        public float x;
        public float y;
        public float z;
        public float w;

        public JsonVector4(Vector4 vec4)
        {
            x = vec4.x;
            y = vec4.y;
            z = vec4.z;
            w = vec4.w;
            type = CtrlType.Vec4F;
        }

        public Vector4 To()
        {
            return new Vector4(x, y, z, w);
        }
    }

    public class JsonColor
    {
        public CtrlType type;
        public float r;
        public float g;
        public float b;
        public float a;

        public JsonColor(Color color)
        {
            r = color.r;
            g = color.g;
            b = color.b;
            a = color.a;
            type = CtrlType.ColorF;
        }

        public Color To()
        {
            return new Color(r, g, b, a);
        }
    }

    public class JsonColor32
    {
        public CtrlType type;
        public byte r;
        public byte g;
        public byte b;
        public byte a;

        public JsonColor32(Color32 color)
        {
            r = color.r;
            g = color.g;
            b = color.b;
            a = color.a;
            type = CtrlType.Color;
        }

        public Color32 To()
        {
            return new Color32(r, g, b, a);
        }
    }

    public sealed class Utils
    {
        public static string ToJson(Control[] controls)
        {
            if (controls == null)
            {
                return "";
            }

            var values = new Dictionary<string, object>();

            foreach (Control ctrl in controls)
            {
                switch (ctrl.ctrlType)
                {
                case CtrlType.Bool:
                    values[ctrl.name] = ctrl.valBool;
                    break;

                case CtrlType.Text:
                    values[ctrl.name] = ctrl.text;
                    break;

                case CtrlType.Float:
                    values[ctrl.name] = ctrl.valFloat;
                    break;

                case CtrlType.Int:
                    values[ctrl.name] = ctrl.valInt;
                    break;

                case CtrlType.Vec2F:
                    values[ctrl.name] = new JsonVector2(ctrl.valVector2);
                    break;

                case CtrlType.Vec3F:
                    values[ctrl.name] = new JsonVector3(ctrl.valVector3);
                    break;

                case CtrlType.Vec4F:
                    values[ctrl.name] = new JsonVector4(ctrl.valVector4);
                    break;

                case CtrlType.ColorF:
                    values[ctrl.name] = new JsonColor(ctrl.valColor);
                    break;

                case CtrlType.Color:
                    values[ctrl.name] = new JsonColor32(ctrl.valColor32);
                    break;

                default:
                    break;
                }
            }

            // save preset setting
            return JsonConvert.SerializeObject(values, Formatting.Indented);
        }

        public static void FromJson(string in_str_json, Control[] out_controls)
        {
            if (out_controls == null)
            {
                return;
            }

            JsonSerializerSettings setting = new JsonSerializerSettings();
            setting.MissingMemberHandling = MissingMemberHandling.Ignore;
            setting.DefaultValueHandling = DefaultValueHandling.Include;
            setting.NullValueHandling = NullValueHandling.Ignore;
            var res = JsonConvert.DeserializeObject< Dictionary<string, object> >(in_str_json, setting);

            foreach (Control ctrl in out_controls)
            {
                object obj;
                if (res.TryGetValue(ctrl.name, out obj))
                {
                    Type type = obj.GetType();

                    if (type == typeof(string) && ctrl.IsString())
                    {
                        ctrl.text = (string)obj;
                    }
                    else if (ctrl.IsValue())
                    {
                        if (type == typeof(bool))
                        {
                            ctrl.valBool = (bool)obj;
                        }
                        else if (type == typeof(Double))
                        {
                            ctrl.valFloat = Convert.ToSingle((Double)obj);
                        }
                        else if (type == typeof(float))
                        {
                            ctrl.valFloat = (float)obj;
                        }
                        else if (type == typeof(Int64))
                        {
                            ctrl.valInt = Convert.ToInt32((Int64)obj);
                        }
                        else if (type == typeof(int))
                        {
                            ctrl.valInt = (int)obj;
                        }
                        else if (type == typeof(Newtonsoft.Json.Linq.JObject))
                        {
                            Newtonsoft.Json.Linq.JObject jobj = (Newtonsoft.Json.Linq.JObject)obj;
                            Newtonsoft.Json.Linq.JToken token = jobj.GetValue("type");
                            if (token == null)
                            {
                                continue;
                            }

                            CtrlType jobj_type = (CtrlType)(int)token;
                            if (jobj_type != ctrl.ctrlType)
                            {
                                continue;
                            }

                            switch (ctrl.ctrlType)
                            {
                            case CtrlType.Vec2F:
                                {
                                    JsonVector2 json_vec2 = JsonConvert.DeserializeObject<JsonVector2>(obj.ToString());
                                    if (json_vec2 == null)
                                    {
                                        continue;
                                    }

                                    ctrl.valVector2 = json_vec2.To();
                                }
                                break;

                            case CtrlType.Vec3F:
                                {
                                    JsonVector3 json_vec3 = JsonConvert.DeserializeObject<JsonVector3>(obj.ToString());
                                    if (json_vec3 == null)
                                    {
                                        continue;
                                    }

                                    ctrl.valVector3 = json_vec3.To();
                                }
                                break;

                            case CtrlType.Vec4F:
                                {
                                    JsonVector4 json_vec4 = JsonConvert.DeserializeObject<JsonVector4>(obj.ToString());
                                    if (json_vec4 == null)
                                    {
                                        continue;
                                    }

                                    ctrl.valVector2 = json_vec4.To();
                                }
                                break;

                            case CtrlType.ColorF:
                                {
                                    JsonColor json_color = JsonConvert.DeserializeObject<JsonColor>(obj.ToString());
                                    if (json_color == null)
                                    {
                                        continue;
                                    }

                                    ctrl.valColor = json_color.To();
                                }
                                break;

                            case CtrlType.Color:
                                {
                                    JsonColor32 json_color32 = JsonConvert.DeserializeObject<JsonColor32>(obj.ToString());
                                    if (json_color32 == null)
                                    {
                                        continue;
                                    }

                                    ctrl.valColor32 = json_color32.To();
                                }
                                break;

                            default:
                                continue;
                            }
                        }
                    }
                }
            }
        }

        public static string GetRelativeDefaultDir()
        {
            string dir = "settings-ultracontrols/";
            System.IO.DirectoryInfo root_dir = System.IO.Directory.GetParent(Application.dataPath);
            string path = System.IO.Path.Combine(root_dir.FullName, dir);
            System.IO.DirectoryInfo default_dir = new System.IO.DirectoryInfo(path);
            if (!default_dir.Exists)
            {
                default_dir.Create();
            }
            return dir;
        }

        public static T BytesToStructure<T>(byte[] bytes) where T : class
        {
            GCHandle handle = GCHandle.Alloc(bytes, System.Runtime.InteropServices.GCHandleType.Pinned);
            T obj = (T)Marshal.PtrToStructure(handle.AddrOfPinnedObject(), typeof(T));
            handle.Free();
            return obj;
        }

        public static void StructureToBytes<T>(T obj, byte[] bytes) where T : class
        {
            //GCHandle handle = GCHandle.Alloc(bytes, System.Runtime.InteropServices.GCHandleType.Pinned);
            int size = Marshal.SizeOf(obj);
            IntPtr ptr = Marshal.AllocHGlobal(size);
            Marshal.StructureToPtr(obj, ptr, false);
            Marshal.Copy(ptr, bytes, 0, size);
            Marshal.FreeHGlobal(ptr);
        }

        public static RawCtrl[] AllocAryRawCtrl(uint num)
        {
            RawCtrl[] ary = new RawCtrl[num];

            for (uint i = 0; i < num; ++i)
            {
                ary[i] = new RawCtrl();
                ary[i].name = "";
                ary[i].data = new byte[236];
            }
            return ary;
        }

        public static CtrlValues AllocCtrlVaules()
        {
            CtrlValues values = new CtrlValues();
            values.val = new float[16];
            values.min = new float[16];
            values.max = new float[16];
            return values;
        }

        public static CtrlType GetCtrlType(Type type)
        {
            if (type == typeof(string))
            {
                return CtrlType.Text;
            }
            else if (type == typeof(bool))
            {
                return CtrlType.Bool;
            }
            else if (type == typeof(float))
            {
                return CtrlType.Float;
            }
            else if (type == typeof(int))
            {
                return CtrlType.Int;
            }
            else if (type == typeof(Vector2))
            {
                return CtrlType.Vec2F;
            }
            else if (type == typeof(Vector3))
            {
                return CtrlType.Vec3F;
            }
            else if (type == typeof(Vector4))
            {
                return CtrlType.Vec4F;
            }
            else if (type == typeof(Color))
            {
                return CtrlType.ColorF;
            }
            else if (type == typeof(Color32))
            {
                return CtrlType.Color;
            }

            return CtrlType.Unknown;
        }

        public static bool IsSupport(Type type)
        {
            if (type == typeof(string)  ||
                type == typeof(bool)    ||
                type == typeof(float)   ||
                type == typeof(int)     ||
                type == typeof(Vector2) ||
                type == typeof(Vector3) ||
                type == typeof(Vector4) ||
                type == typeof(Color)   ||
                type == typeof(Color32)  )
            {
                return true;
            }

            return false;
        }

        public static void SetVec2(Vector2 vec2, float[] ary_f)
        {
            ary_f[0] = vec2.x;
            ary_f[1] = vec2.y;
        }

        public static void SetVec3(Vector3 vec3, float[] ary_f)
        {
            ary_f[0] = vec3.x;
            ary_f[1] = vec3.y;
            ary_f[2] = vec3.z;
        }

        public static void SetVec4(Vector4 vec4, float[] ary_f)
        {
            ary_f[0] = vec4.x;
            ary_f[1] = vec4.y;
            ary_f[2] = vec4.z;
            ary_f[3] = vec4.w;
        }

        public static void SetColor(Color clr, float[] ary_f)
        {
            ary_f[0] = clr.r;
            ary_f[1] = clr.g;
            ary_f[2] = clr.b;
            ary_f[3] = clr.a;
        }

        public static void SetColor32(Color32 clr, byte[] ary_b)
        {
            ary_b[0] = clr.r;
            ary_b[1] = clr.g;
            ary_b[2] = clr.b;
            ary_b[3] = clr.a;
        }

        public delegate void OnFoundAttribues(object sender, object behavior, FieldInfo info, UltraControlsAttribute ultra_attr, RangeAttribute range_attr);

        public static bool FindUltraControlsAttribues (Component component, UltraControlsAttribute.BindingFlag uc_flag, OnFoundAttribues dele)
        {
            if (dele == null)
            {
                return false;
            }

            BindingFlags sys_binding_flag = BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Public;
            sf_FindAttribuesFromComponent <MonoBehaviour>(component, sys_binding_flag, uc_flag, dele);

            var animators = component.gameObject.GetComponentsInChildren<Animator>(true);
            foreach (Animator animator in animators)
            {
                if (animator == null)
                    continue;

                var behaviours = animator.GetBehaviours<StateMachineBehaviour>();
                foreach (StateMachineBehaviour behaviour in behaviours)
                {
                    sf_FindAttribuesFromBehavior(component, behaviour, sys_binding_flag, uc_flag, dele);
                }//behaviours

            }//animators
            return false;
        }

        private static void sf_FindAttribuesFromComponent<T1> (Component sender, BindingFlags sys_flag, UltraControlsAttribute.BindingFlag uc_flag , OnFoundAttribues dele)
        {
            var components = sender.gameObject.GetComponentsInChildren<T1>(true);

            foreach (T1 component in components)
            {
                if (component == null)
                    continue;

                sf_FindAttribuesFromBehavior(sender, component, sys_flag, uc_flag, dele);

            }//monos
        }

        private static void sf_FindAttribuesFromBehavior (object sender, object behavior, BindingFlags sys_flag, UltraControlsAttribute.BindingFlag uc_flag, OnFoundAttribues dele)
        {
            foreach (FieldInfo field in (behavior.GetType().GetFields(sys_flag)))
            {
                UltraControlsAttribute attr_ultracontrols = null;
                RangeAttribute attr_range = null;

                foreach (object attribute in field.GetCustomAttributes(true))
                {
                    {
                        var attr = attribute as UltraControlsAttribute;
                        if (attr != null && attr.binding_flag == UltraControlsAttribute.BindingFlag.Getter)
                        {
                            attr_ultracontrols = attr;
                            continue;
                        }
                    }

                    {
                        var attr = attribute as RangeAttribute;
                        if (attr != null)
                        {
                            attr_range = attr;
                        }
                    }

                }//attributes

                if (attr_ultracontrols == null)
                {
                    continue;
                }

                dele.Invoke(sender, behavior, field, attr_ultracontrols, attr_range);

            }//fields
        }

#if UNITY_EDITOR
        //https://forum.unity3d.com/threads/how-to-get-the-local-identifier-in-file-for-scene-objects.265686/#post-1766415
        //https://gist.github.com/DmitriyYukhanov/5d93a0a204c32db1dd45d7a86e1df87e

        private static PropertyInfo cachedInspectorModeInfo;

        public static long GetLocalIdentifierInFileForObject(UnityEngine.Object obj)
        {
            long id = 0;
            if (obj == null)
            {
                return id;
            }

            PropertyInfo cachedInspectorModeInfo = typeof(UnityEditor.SerializedObject).GetProperty("inspectorMode", BindingFlags.NonPublic | BindingFlags.Instance);
            UnityEditor.SerializedObject serializedObject = new UnityEditor.SerializedObject(obj);
            cachedInspectorModeInfo.SetValue(serializedObject, UnityEditor.InspectorMode.Debug, null);
            UnityEditor.SerializedProperty serializedProperty = serializedObject.FindProperty("m_LocalIdentfierInFile");

#if UNITY_5_PLUS
            id = serializedProperty.longValue;
#else
            id = serializedProperty.intValue;
#endif
            //if (id <= 0)
            //{
            //    UnityEditor.PrefabType prefabType = UnityEditor.PrefabUtility.GetPrefabType(obj);
            //    if (prefabType != UnityEditor.PrefabType.None)
            //    {
            //        id = GetLocalIdentifierInFileForObject(UnityEditor.PrefabUtility.GetPrefabParent(obj));
            //    }
            //    else
            //    {
            //        // this will work for the new objects in scene which weren't saved yet
            //        id = obj.GetInstanceID();
            //    }
            //}
            //
            //if (id <= 0)
            //{
            //    UnityEngine.GameObject go = obj as UnityEngine.GameObject;
            //    if (go != null)
            //    {
            //        id = go.transform.GetSiblingIndex();
            //    }
            //}

            return id;
        }

#endif

    }



}