using NewHorizons.External.Configs;
using NewHorizons.External.Modules.VariableSize;
using NewHorizons.External.SerializableData;
using NewHorizons.External.SerializableEnums;
using NewHorizons.Utility.OWML;
using Newtonsoft.Json;
using OWML.Utils;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Text.RegularExpressions;
using System.Xml;
using UnityEngine;
using static NewHorizons.External.Modules.ParticleFieldModule;
using NomaiCoordinates = NewHorizons.External.Configs.StarSystemConfig.NomaiCoordinates;

namespace NewHorizons.Utility
{
    public static class NewHorizonsExtensions
    {
        private static JsonSerializer jsonSerializer = new JsonSerializer
        {
            NullValueHandling = NullValueHandling.Ignore,
            DefaultValueHandling = DefaultValueHandling.Ignore,
            Formatting = Newtonsoft.Json.Formatting.Indented,
        };

        private static StringBuilder stringBuilder = new StringBuilder();

        public static string ToSerializedJson(this PlanetConfig planetConfig)
        {
            string json = "{}";
            using (StringWriter stringWriter = new StringWriter(stringBuilder))
            {
                using (JsonTextWriter jsonTextWriter = new JsonTextWriter(stringWriter)
                {
                    Formatting = Newtonsoft.Json.Formatting.Indented,
                    IndentChar = '\t',
                    Indentation = 1
                })
                {
                    jsonSerializer.Serialize(jsonTextWriter, planetConfig);
                    json = "{\n\t\"$schema\": \"https://raw.githubusercontent.com/xen-42/outer-wilds-new-horizons/main/NewHorizons/Schemas/body_schema.json\"," + stringBuilder.ToString().Substring(1);
                    stringBuilder.Clear();
                }
            }
            return json;
        }

        public static MVector3 ToMVector3(this Vector3 vector3)
        {
            return new MVector3(vector3.x, vector3.y, vector3.z);
        }

        public static T GetSetting<T>(this Dictionary<string, object> dict, string settingName)
        {
            return (T)dict[settingName];
        }

        public static float GetFalloffExponent(this GravityVolume gv)
        {
            if (gv == null) return 0;
            if (gv._falloffType == GravityVolume.FalloffType.linear) return 1;
            if (gv._falloffType == GravityVolume.FalloffType.inverseSquared) return 2;

            return 0;
        }

        public static string ToCamelCase(this string str)
        {
            StringBuilder strBuilder = new StringBuilder(str);
            strBuilder[0] = strBuilder[0].ToString().ToLowerInvariant().ToCharArray()[0];
            return strBuilder.ToString();
        }

        public static string ToTitleCase(this string str)
        {
            StringBuilder strBuilder = new StringBuilder(str);
            strBuilder[0] = strBuilder[0].ToString().ToUpperInvariant().ToCharArray()[0];
            return strBuilder.ToString();
        }

        public static void CopyPropertiesFrom(this object destination, object source)
        {
            // If any this null throw an exception
            if (source == null || destination == null)
                throw new Exception("Source or/and Destination Objects are null");
            // Getting the Types of the objects
            Type typeDest = destination.GetType();
            Type typeSrc = source.GetType();

            // Iterate the Properties of the source instance and  
            // populate them from their desination counterparts  
            PropertyInfo[] srcProps = typeSrc.GetProperties();
            foreach (PropertyInfo srcProp in srcProps)
            {
                if (!srcProp.CanRead)
                {
                    continue;
                }
                PropertyInfo targetProperty = typeDest.GetProperty(srcProp.Name);
                if (targetProperty == null)
                {
                    continue;
                }
                if (!targetProperty.CanWrite)
                {
                    continue;
                }
                if (targetProperty.GetSetMethod(true) != null && targetProperty.GetSetMethod(true).IsPrivate)
                {
                    continue;
                }
                if ((targetProperty.GetSetMethod().Attributes & MethodAttributes.Static) != 0)
                {
                    continue;
                }
                if (!targetProperty.PropertyType.IsAssignableFrom(srcProp.PropertyType))
                {
                    continue;
                }

                try
                {
                    targetProperty.SetValue(destination, srcProp.GetValue(source, null), null);
                }
                catch (Exception)
                {
                    NHLogger.LogWarning($"Couldn't copy property {targetProperty.Name} from {source} to {destination}");
                }
            }
        }

        public static void CopyFieldsFrom(this object destination, object source)
        {
            // If any this null throw an exception
            if (source == null || destination == null)
                throw new Exception("Source or/and Destination Objects are null");
            // Getting the Types of the objects
            var typeDest = destination.GetType();
            var typeSrc = source.GetType();

            foreach (var srcField in typeSrc.GetFields())
            {
                var targetField = typeDest.GetField(srcField.Name);
                if (targetField == null)
                {
                    continue;
                }
                try
                {
                    targetField.SetValue(destination, srcField.GetValue(source));
                }
                catch (Exception)
                {
                    NHLogger.LogWarning($"Couldn't copy field {targetField.Name} from {source} to {destination}");
                }
            }
        }

        public static void CopyFrom(this object destination, object source)
        {
            destination.CopyPropertiesFrom(source);
            destination.CopyFieldsFrom(source);
        }

        public static string SplitCamelCase(this string str)
        {
            return Regex.Replace(
                Regex.Replace(
                    str,
                    @"(\P{Ll})(\P{Ll}\p{Ll})",
                    "$1 $2"
                ),
                @"(\p{Ll})(\P{Ll})",
                "$1 $2"
            );
        }

        public static GameObject InstantiateInactive(this GameObject original)
        {
            if (!original.activeSelf)
            {
                return UnityEngine.Object.Instantiate(original);
            }

            original.SetActive(false);
            var copy = UnityEngine.Object.Instantiate(original);
            original.SetActive(true);
            return copy;
        }

        public static GameObject Instantiate(this GameObject original)
        {
            return UnityEngine.Object.Instantiate(original);
        }

        public static T DontDestroyOnLoad<T>(this T target) where T : UnityEngine.Object
        {
            UnityEngine.Object.DontDestroyOnLoad(target);
            return target;
        }

        public static Material[] MakePrefabMaterials(this Material[] target)
        {
            var materials = new List<Material>();
            foreach (var material in target)
            {
                materials.Add(new Material(material).DontDestroyOnLoad());
            }
            return materials.ToArray();
        }

        public static T Rename<T>(this T target, string name) where T : UnityEngine.Object
        {
            target.name = name;
            return target;
        }


        /// <summary>
        /// Transform rotation from Local Space to World Space
        /// </summary>
        /// <param name="transform"></param>
        /// <param name="localRotation"></param>
        /// <returns></returns>
        public static Quaternion TransformRotation(this Transform transform, Quaternion localRotation)
        {
            return transform.rotation * localRotation;
        }

        public static bool CheckAllCoordinates(this NomaiCoordinateInterface nomaiCoordinateInterface) => Main.SystemDict.Where(system => system.Value.Config.Vessel?.coords != null).Select(system => new KeyValuePair<string, NomaiCoordinates>(system.Key, system.Value.Config.Vessel.coords)).Any(system => nomaiCoordinateInterface.CheckCoordinates(system.Key, system.Value));

        public static bool CheckAllCoordinates(this NomaiCoordinateInterface nomaiCoordinateInterface, out string selectedSystem)
        {
            foreach (KeyValuePair<string, NomaiCoordinates> cbs in Main.SystemDict.Where(system => system.Value.Config.Vessel?.coords != null).Select(system => new KeyValuePair<string, NomaiCoordinates>(system.Key, system.Value.Config.Vessel.coords)))
            {
                if (CheckCoordinates(nomaiCoordinateInterface, cbs.Key, cbs.Value))
                {
                    selectedSystem = cbs.Key;
                    return true;
                }
            }
            selectedSystem = null;
            return false;
        }

        public static bool CheckCoordinates(this NomaiCoordinateInterface nomaiCoordinateInterface, string system, NomaiCoordinates coordinates)
        {
            bool xCorrect = nomaiCoordinateInterface._nodeControllers[0].CheckCoordinate(coordinates.x);
            bool yCorrect = nomaiCoordinateInterface._nodeControllers[1].CheckCoordinate(coordinates.y);
            bool zCorrect = nomaiCoordinateInterface._nodeControllers[2].CheckCoordinate(coordinates.z);
            NHLogger.LogVerbose($"Coordinate Check for {system}: {xCorrect}, {yCorrect}, {zCorrect} [{string.Join("-", coordinates.x)}, {string.Join("-", coordinates.y)}, {string.Join("-", coordinates.z)}]");
            return xCorrect && yCorrect && zCorrect;
        }
    
		public static FluidVolume.Type ConvertToOW(this NHFluidType fluidType, FluidVolume.Type @default = FluidVolume.Type.NONE)
            => EnumUtils.Parse(fluidType.ToString(), @default);

        public static OWAudioMixer.TrackName ConvertToOW(this NHAudioMixerTrackName trackName, OWAudioMixer.TrackName @default = OWAudioMixer.TrackName.Environment)
            => EnumUtils.Parse(trackName.ToString(), @default);
        
        public static OWAudioSource.ClipSelectionOnPlay ConvertToOW(this NHClipSelectionType clipSelection, OWAudioSource.ClipSelectionOnPlay @default = OWAudioSource.ClipSelectionOnPlay.RANDOM)
            => EnumUtils.Parse(clipSelection.ToString(), @default);
	
        public static void SmoothLookDir(this GameObject go, Vector3 direction, float dt, float angularVelocity)
        {
            var start = go.transform.rotation;
            var end = Quaternion.FromToRotation(Vector3.forward, direction);

            var angle = Quaternion.Angle(start, end);

            go.transform.rotation = Quaternion.Slerp(start, end, (angularVelocity / angle) * dt);
        }

        public static void LookDir(this GameObject go, Vector3 direction)
        {
            go.transform.rotation = Quaternion.FromToRotation(Vector3.forward, direction);
        }

        public static AnimationCurve ToAnimationCurve(this TimeValuePair[] pairs)
        {
            var curve = new AnimationCurve();
            if (pairs != null)
            {
                foreach (var pair in pairs)
                {
                    curve.AddKey(new Keyframe(pair.time, pair.value));
                }
            }
            return curve;
        }

        public static AnimationCurve ToAnimationCurve(this HeightDensityPair[] pairs)
        {
            var curve = new AnimationCurve();
            if (pairs != null)
            {
                foreach (var pair in pairs)
                {
                    curve.AddKey(new Keyframe(pair.height, pair.density));
                }
            }
            return curve;
        }

        // From QSB
        public static void RaiseEvent<T>(this T instance, string eventName, params object[] args)
        {
            const BindingFlags flags = BindingFlags.Instance
                | BindingFlags.Static
                | BindingFlags.Public
                | BindingFlags.NonPublic
                | BindingFlags.DeclaredOnly;
            if (typeof(T)
                    .GetField(eventName, flags)?
                    .GetValue(instance) is not MulticastDelegate multiDelegate)
            {
                return;
            }

            multiDelegate.SafeInvoke(args);
        }

        // From QSB
        public static void SafeInvoke(this MulticastDelegate multicast, params object[] args)
        {
            foreach (var del in multicast.GetInvocationList())
            {
                try
                {
                    del.DynamicInvoke(args);
                }
                catch (TargetInvocationException ex)
                {
                    NHLogger.LogError($"Error invoking delegate! {ex.InnerException}");
                }
            }
        }

        public static List<XmlNode> GetChildNodes(this XmlNode parentNode, string tagName)
        {
            return parentNode.ChildNodes.Cast<XmlNode>().Where(node => node.LocalName == tagName).ToList();
        }

        public static XmlNode GetChildNode(this XmlNode parentNode, string tagName)
        {
            return parentNode.ChildNodes.Cast<XmlNode>().First(node => node.LocalName == tagName);
        }

        public static string TruncateWhitespaceAndToLower(this string text)
        {
            // return Regex.Replace(text.Trim(), @"[^\S\r\n]+", "GUH");
            return Regex.Replace(text.Trim(), @"\s+", " ").ToLowerInvariant();
        }
    }
}