FlutterCodeGenerator/ModelType.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace FlutterCodeGenerator
{
    public class ModelType
    {
        public Type ParameterType { get; set; }

        /// <summary>
        ///Name(First Character Lower Case)
        /// </summary>
        public string Name_Lower { get; set; }

        /// <summary>
        ///Name(First Character Upper Case)
        /// </summary>
        public string Name_Upper { get; set; }

        public string DefaultValue { get; set; }

        /// <summary>
        /// Index(For Same Name)
        /// </summary>
        public int Index { get; set; }

        public ModelType(Type type, string name)
        {
            ParameterType = type;
            Name_Lower = LetterConverterHelper.FirstCharToLower(name);
            Name_Upper = LetterConverterHelper.FirstCharToUpper(name);
            DefaultValue = null;
            Index = 1;
        }

        public virtual string GetFlutterTypeName(bool isDefault = true, bool isGenericName = false, bool isSingle = false)
        {
            return ParameterType.Name;
        }

        public virtual string GetDartString()
        {
            return string.Empty;
        }

        protected string QuestionMarkCheck(ModelType child)
        {
            if (child.DefaultValue != null)
            {
                return "";
            }
            else
            {
                return "?";
            }
        }
    }

    public class SimpleModelType : ModelType
    {
        public SimpleModelType(Type type, string name) : base(type, name)
        {
        }
    }

    public class StringModelType : SimpleModelType
    {
        public StringModelType(string name) : base(typeof(string), name)
        {
        }
    }

    public class DateTimeModelType : SimpleModelType
    {
        public DateTimeModelType(string name) : base(typeof(DateTime), name)
        {
        }
    }

    public class IntModelType : SimpleModelType
    {
        public IntModelType(string name) : base(typeof(int), name)
        {
            DefaultValue = "0";
        }

        public override string GetFlutterTypeName(bool isDefault = true, bool isGenericName = false, bool isSingle = false)
        {
            return "int";
        }
    }

    public class IntNullableModelType : SimpleModelType
    {
        public IntNullableModelType(string name) : base(typeof(int?), name)
        {
        }

        public override string GetFlutterTypeName(bool isDefault = true, bool isGenericName = false, bool isSingle = false)
        {
            return "int";
        }
    }

    public class ByteModelType : SimpleModelType
    {
        public ByteModelType(string name) : base(typeof(byte), name)
        {
            DefaultValue = "0";
        }

        public override string GetFlutterTypeName(bool isDefault = true, bool isGenericName = false, bool isSingle = false)
        {
            return "int";
        }
    }

    public class ByteNullableModelType : SimpleModelType
    {
        public ByteNullableModelType(string name) : base(typeof(byte?), name)
        {
        }

        public override string GetFlutterTypeName(bool isDefault = true, bool isGenericName = false, bool isSingle = false)
        {
            return "int";
        }
    }

    public class VoidModelType : SimpleModelType
    {
        public VoidModelType(string name) : base(typeof(void), name)
        {
        }

        public override string GetFlutterTypeName(bool isDefault = true, bool isGenericName = false, bool isSingle = false)
        {
            return "void";
        }
    }

    public class DoubleModelType : SimpleModelType
    {
        public DoubleModelType(string name) : base(typeof(double), name)
        {
            DefaultValue = "0";
        }

        public override string GetFlutterTypeName(bool isDefault = true, bool isGenericName = false, bool isSingle = false)
        {
            return "double";
        }
    }

    public class DoubleNullableModelType : SimpleModelType
    {
        public DoubleNullableModelType(string name) : base(typeof(double?), name)
        {
        }

        public override string GetFlutterTypeName(bool isDefault = true, bool isGenericName = false, bool isSingle = false)
        {
            return "double";
        }
    }

    public class BoolModelType : SimpleModelType
    {
        public BoolModelType(string name) : base(typeof(bool), name)
        {
            DefaultValue = "false";
        }

        public override string GetFlutterTypeName(bool isDefault = true, bool isGenericName = false, bool isSingle = false)
        {
            return "bool";
        }
    }

    public class BoolNullableModelType : SimpleModelType
    {
        public BoolNullableModelType(string name) : base(typeof(bool?), name)
        {
        }

        public override string GetFlutterTypeName(bool isDefault = true, bool isGenericName = false, bool isSingle = false)
        {
            return "bool";
        }
    }

    public class InterfaceModelType : SimpleModelType
    {
        public InterfaceModelType(string name) : base(typeof(string), name)
        {
        }
    }

    public class ExtraObjectModelType : SimpleModelType
    {
        public ExtraObjectModelType(Type type, string name) : base(type, name)
        {
        }
    }

    public class ComplexModelType : ModelType
    {
        public List<ModelType> Children { get; set; }

        public ComplexModelType(Type type, string name) : base(type, name)
        {
            Children = new List<ModelType>();
        }

        protected virtual string ToJson(List<ModelType> Children)
        {
            var source = new StringBuilder();
            source.AppendLine("\tMap<String, dynamic> toJson() {");
            source.AppendLine("\t\tfinal map = Map<String, dynamic>();");
            foreach (var child in Children)
            {
                if (child is EnumModelType)
                {
                    source.AppendLine($"\t\tmap['{child.Name_Upper}'] = {child.Name_Lower}.index;");
                }
                else if (child.DefaultValue != null)
                {
                    source.AppendLine($"\t\tmap['{child.Name_Upper}'] = {child.Name_Lower};");
                }
                else if (child is DateTimeModelType)
                {
                    source.AppendLine($"\t\tif({child.Name_Lower} != null)");
                    source.AppendLine($"\t\t\tmap['{child.Name_Upper}'] = JsonRpcUtils.dateFormat({child.Name_Lower}!);");
                }
                else
                {
                    source.AppendLine($"\t\tif({child.Name_Lower} != null)");
                    source.AppendLine($"\t\t\tmap['{child.Name_Upper}'] = {child.Name_Lower};");
                }
            }
            source.AppendLine("\t\treturn map;");
            source.AppendLine("\t}");
            return source.ToString();
        }

        protected virtual string FromJson(List<ModelType> Children)
        {
            var source = new StringBuilder();
            string flutterTypeName = null;
            if (this is UserDefinedGenericModelType)
            {
                flutterTypeName = GetFlutterTypeName(false, false, true);
            }
            else
            {
                flutterTypeName = GetFlutterTypeName();
            }

            source.AppendLine($"\tfactory {flutterTypeName}.fromJson(Map<String, dynamic> map) {{");
            foreach (var child in Children)
            {
                if (child is ArrayModelType)
                {
                    source.AppendLine($"\t\tfinal {child.Name_Lower}Data = map['{child.Name_Upper}'];");
                }
                else if (child is ListModelType listModelType)
                {
                    if (this is UserDefinedGenericModelType type)
                    {
                        if (type.GenericArgumentModelType.ParameterType == listModelType.GenericArgumentModelType.ParameterType)
                        {
                            source.AppendLine($"\t\tList<T> {listModelType.Name_Lower}List = [];");
                            source.AppendLine($"\t\tif (map['{listModelType.Name_Upper}'] != null) {{");
                            source.AppendLine($"\t\t\t{listModelType.Name_Lower}List.addAll(");
                            source.AppendLine($"\t\t\t\t\t(map['{listModelType.Name_Upper}'] as List).map((e) => FJsonConvert.fromJson<T>(e)!));");
                            source.AppendLine($"\t\t}}");
                        }
                    }
                    else if (this is UserDefinedDerivedModelType derivedModelType && derivedModelType.BaseType is UserDefinedGenericModelType baseType)
                    {
                        if (baseType.GenericArgumentModelType.ParameterType == listModelType.GenericArgumentModelType.ParameterType)
                        {
                            source.AppendLine($"\t\tList<{listModelType.GenericArgumentModelType.GetFlutterTypeName()}> {listModelType.Name_Lower}List = [];");
                            source.AppendLine($"\t\tif (map['{listModelType.Name_Upper}'] != null) {{");
                            source.AppendLine($"\t\t\t{listModelType.Name_Lower}List.addAll(");
                            source.AppendLine($"\t\t\t\t\t(map['{listModelType.Name_Upper}'] as List).map((e) => FJsonConvert.fromJson<{listModelType.GenericArgumentModelType.GetFlutterTypeName()}>(e)!));");
                            source.AppendLine($"\t\t}}");
                        }
                    }
                }
                else if (child is UserDefinedGenericModelType userDefinedGenericComplexModelType)
                {
                    if (this is UserDefinedGenericModelType type)
                    {
                        if (type.GenericArgumentModelType.ParameterType == userDefinedGenericComplexModelType.GenericArgumentModelType.ParameterType)
                        {
                            source.AppendLine($"\t\tList<T> {userDefinedGenericComplexModelType.Name_Lower}List = [];");
                            source.AppendLine($"\t\tif (map['{userDefinedGenericComplexModelType.Name_Upper}'] != null) {{");
                            source.AppendLine($"\t\t\t{userDefinedGenericComplexModelType.Name_Lower}List.addAll(");
                            source.AppendLine($"\t\t\t\t\t(map['{userDefinedGenericComplexModelType.Name_Upper}'] as List).map((e) => FJsonConvert.fromJson<T>(e)!));");
                            source.AppendLine($"\t\t}}");
                        }
                        else if (this is UserDefinedDerivedModelType derivedModelType && derivedModelType.BaseType is UserDefinedGenericModelType baseType)
                        {
                            if (baseType.GenericArgumentModelType.ParameterType == userDefinedGenericComplexModelType.GenericArgumentModelType.ParameterType)
                            {
                                source.AppendLine($"\t\tList<{userDefinedGenericComplexModelType.GenericArgumentModelType.ParameterType}> {userDefinedGenericComplexModelType.Name_Lower}List = [];");
                                source.AppendLine($"\t\tif (map['{userDefinedGenericComplexModelType.Name_Upper}'] != null) {{");
                                source.AppendLine($"\t\t\t{userDefinedGenericComplexModelType.Name_Lower}List.addAll(");
                                source.AppendLine($"\t\t\t\t\t(map['{userDefinedGenericComplexModelType.Name_Upper}'] as List).map((e) => FJsonConvert.fromJson<{userDefinedGenericComplexModelType.GenericArgumentModelType.ParameterType}>(e)!));");
                                source.AppendLine($"\t\t}}");
                            }
                        }
                    }
                }
            }
            source.AppendLine($"\t\treturn {flutterTypeName}( ");
            foreach (var child in Children)
            {
                if (child is EnumModelType)
                {
                    source.AppendLine($"\t\t\t{child.Name_Lower}: {child.GetFlutterTypeName()}.values.firstWhere((e) => e.index == map['{child.Name_Upper}']),");
                }
                else if (child is EnumNullableModelType)
                {
                    source.AppendLine($"\t\t\t{child.Name_Lower}: map['{child.Name_Upper}'] != null ? {child.GetFlutterTypeName()}.values.firstWhere((e) => e.index == map['{child.Name_Upper}']) : null,");
                }
                else if (child is ArrayModelType)
                {
                    var arrayTypeName = child.ParameterType.FullName.Replace("[]", string.Empty);
                    var arrayType = child.ParameterType.Assembly.GetType(arrayTypeName);
                    var modelType = ModelTypeGenerator.Create(arrayType, "");
                    if (modelType is ByteModelType)
                    {
                        source.AppendLine($"\t\t\t{child.Name_Lower}: {child.Name_Lower}Data != null ? ({child.Name_Lower}Data as List).map((e) => e as int).toList(): null,");
                    }
                    else if (modelType is SimpleModelType && (modelType is ExtraObjectModelType))
                    {
                        source.AppendLine($"\t\t\t{child.Name_Lower}: {child.Name_Lower}Data != null ? ({child.Name_Lower}Data as List).map((e) => e as {child.ParameterType.Name.Replace("[]", string.Empty)}).toList(): null,");
                    }
                    else
                    {
                        source.AppendLine($"\t\t\t{child.Name_Lower}: {child.Name_Lower}Data != null ? ({child.Name_Lower}Data as List).map((e) => {child.ParameterType.Name.Replace("[]", string.Empty)}.fromJson(e)).toList(): null,");
                    }
                }
                else if (child is DateTimeModelType)
                {
                    source.AppendLine($"\t\t\t{child.Name_Lower}: map['{child.Name_Upper}'] != null ? DateTime.parse(map['{child.Name_Upper}']) : null,");
                }
                else if (child is ListModelType listModelType)
                {
                    if (this is UserDefinedGenericModelType type)
                    {
                        if (type.GenericArgumentModelType.ParameterType == listModelType.GenericArgumentModelType.ParameterType)
                        {
                            source.AppendLine($"\t\t\t{child.Name_Lower}: {listModelType.Name_Lower}List,");
                        }
                        else if (listModelType.GenericArgumentModelType is SimpleModelType && !(listModelType.GenericArgumentModelType is ExtraObjectModelType))
                        {
                            var model = listModelType.GenericArgumentModelType.GetFlutterTypeName();
                            source.AppendLine($"\t\t\t{child.Name_Lower}: map['{child.Name_Upper}'] != null ? map['{child.Name_Upper}'].cast<{model}>().toList() : null,");
                        }
                        else if (listModelType.GenericArgumentModelType is EnumModelType)
                        {
                            var model = listModelType.GenericArgumentModelType.GetFlutterTypeName();
                            source.AppendLine($"\t\t\t{child.Name_Lower}: map['{child.Name_Upper}'] != null ? (map['{child.Name_Upper}'] as List).map((e)=>{model}.values.firstWhere((i) => i.index == e)).toList() : null,");
                        }
                        else
                        {
                            var model = listModelType.GenericArgumentModelType.GetFlutterTypeName();
                            source.AppendLine($"\t\t\t{child.Name_Lower}: map['{child.Name_Upper}'] != null ? (map['{child.Name_Upper}'] as List).map((e)=>{model}.fromJson(e as Map<String,dynamic>)).toList() : null,");
                        }
                    }
                    else if (this is UserDefinedDerivedModelType definedDerivedModelType && definedDerivedModelType.BaseType is UserDefinedGenericModelType baseType)
                    {
                        if (baseType.GenericArgumentModelType.ParameterType == listModelType.GenericArgumentModelType.ParameterType)
                        {
                            source.AppendLine($"\t\t\t{child.Name_Lower}: {listModelType.Name_Lower}List,");
                        }
                        else if (listModelType.GenericArgumentModelType is SimpleModelType && !(listModelType.GenericArgumentModelType is ExtraObjectModelType))
                        {
                            var model = listModelType.GenericArgumentModelType.GetFlutterTypeName();
                            source.AppendLine($"\t\t\t{child.Name_Lower}: map['{child.Name_Upper}'] != null ? map['{child.Name_Upper}'].cast<{model}>().toList() : null,");
                        }
                        else if (listModelType.GenericArgumentModelType is EnumModelType)
                        {
                            var model = listModelType.GenericArgumentModelType.GetFlutterTypeName();
                            source.AppendLine($"\t\t\t{child.Name_Lower}: map['{child.Name_Upper}'] != null ? (map['{child.Name_Upper}'] as List).map((e)=>{model}.values.firstWhere((i) => i.index == e)).toList() : null,");
                        }
                        else
                        {
                            var model = listModelType.GenericArgumentModelType.GetFlutterTypeName();
                            source.AppendLine($"\t\t\t{child.Name_Lower}: map['{child.Name_Upper}'] != null ? (map['{child.Name_Upper}'] as List).map((e)=>{model}.fromJson(e as Map<String,dynamic>)).toList() : null,");
                        }
                    }
                    else if (this is UserDefinedModelType || this is UserDefinedDerivedModelType)
                    {
                        if (listModelType.GenericArgumentModelType is SimpleModelType && !(listModelType.GenericArgumentModelType is ExtraObjectModelType))
                        {
                            var model = listModelType.GenericArgumentModelType.GetFlutterTypeName();
                            source.AppendLine($"\t\t\t{child.Name_Lower}: map['{child.Name_Upper}'] != null ? map['{child.Name_Upper}'].cast<{model}>().toList() : null,");
                        }
                        else if (listModelType.GenericArgumentModelType is EnumModelType)
                        {
                            var model = listModelType.GenericArgumentModelType.GetFlutterTypeName();
                            source.AppendLine($"\t\t\t{child.Name_Lower}: map['{child.Name_Upper}'] != null ? (map['{child.Name_Upper}'] as List).map((e)=>{model}.values.firstWhere((i) => i.index == e)).toList() : null,");
                        }
                        else
                        {
                            var model = listModelType.GenericArgumentModelType.GetFlutterTypeName();
                            source.AppendLine($"\t\t\t{child.Name_Lower}: map['{child.Name_Upper}'] != null ? (map['{child.Name_Upper}'] as List).map((e)=>{model}.fromJson(e as Map<String,dynamic>)).toList() : null,");
                        }
                    }
                }
                else if (child is DictionaryModelType dictionaryModelType)
                {
                    var argumentName1 = dictionaryModelType.GenericArgumentModelTypeList[0].GetFlutterTypeName();
                    var argumentName2 = dictionaryModelType.GenericArgumentModelTypeList[1].GetFlutterTypeName();
                    source.AppendLine($"\t\t\t{child.Name_Lower}: map['{child.Name_Upper}'] != null ? map['{child.Name_Upper}'].cast<{argumentName1},{argumentName2}>() : null,");
                }
                else if (child is UserDefinedGenericModelType userDefinedGenericModelType)
                {
                    if (this is UserDefinedGenericModelType type)
                    {
                        if (type.GenericArgumentModelType.ParameterType == userDefinedGenericModelType.GenericArgumentModelType.ParameterType)
                        {
                            source.AppendLine($"\t\t\t{child.Name_Lower}: {userDefinedGenericModelType.Name_Lower}List,");
                        }
                        else if (userDefinedGenericModelType.GenericArgumentModelType is SimpleModelType && !(userDefinedGenericModelType.GenericArgumentModelType is ExtraObjectModelType))
                        {
                            var model = userDefinedGenericModelType.GenericArgumentModelType.GetFlutterTypeName();
                            source.AppendLine($"\t\t\t{child.Name_Lower}: map['{child.Name_Upper}'] != null ? map['{child.Name_Upper}'].cast<{model}>().toList() : null,");
                        }
                        else if (userDefinedGenericModelType.GenericArgumentModelType is EnumModelType)
                        {
                            var model = userDefinedGenericModelType.GenericArgumentModelType.GetFlutterTypeName();
                            source.AppendLine($"\t\t\t{child.Name_Lower}: map['{child.Name_Upper}'] != null ? (map['{child.Name_Upper}'] as List).map((e)=>{model}.values.firstWhere((i) => i.index == e)).toList() : null,");
                        }
                        else
                        {
                            var model = userDefinedGenericModelType.GenericArgumentModelType.GetFlutterTypeName();
                            source.AppendLine($"\t\t\t{child.Name_Lower}: map['{child.Name_Upper}'] != null ? (map['{child.Name_Upper}'] as List).map((e)=>{model}.fromJson(e as Map<String,dynamic>)).toList() : null,");
                        }
                    }
                    else if (this is UserDefinedModelType)
                    {
                        if (userDefinedGenericModelType.GenericArgumentModelType is SimpleModelType && !(userDefinedGenericModelType.GenericArgumentModelType is ExtraObjectModelType))
                        {
                            var model = userDefinedGenericModelType.GenericArgumentModelType.GetFlutterTypeName();
                            source.AppendLine($"\t\t\t{child.Name_Lower}: map['{child.Name_Upper}'] != null ? map['{child.Name_Upper}'].cast<{model}>().toList() : null,");
                        }
                        else if (userDefinedGenericModelType.GenericArgumentModelType is EnumModelType)
                        {
                            var model = userDefinedGenericModelType.GenericArgumentModelType.GetFlutterTypeName();
                            source.AppendLine($"\t\t\t{child.Name_Lower}: map['{child.Name_Upper}'] != null ? (map['{child.Name_Upper}'] as List).map((e)=>{model}.values.firstWhere((i) => i.index == e)).toList() : null,");
                        }
                        else
                        {
                            var model = userDefinedGenericModelType.GenericArgumentModelType.GetFlutterTypeName();
                            source.AppendLine($"\t\t\t{child.Name_Lower}: map['{child.Name_Upper}'] != null ? (map['{child.Name_Upper}'] as List).map((e)=>{model}.fromJson(e as Map<String,dynamic>)).toList() : null,");
                        }
                    }
                }
                else if (child is UserDefinedModelType || child is UserDefinedDerivedModelType)
                {
                    source.AppendLine($"\t\t\t{child.Name_Lower}: map['{child.Name_Upper}'] != null ? {child.GetFlutterTypeName()}.fromJson(map['{child.Name_Upper}']) : null,");
                }
                else if (child is DoubleModelType)
                {
                    source.AppendLine($"\t\t\t{child.Name_Lower}: double.parse(map['{child.Name_Upper}'].toString()),");
                }
                else
                {
                    source.AppendLine($"\t\t\t{child.Name_Lower}: map['{child.Name_Upper}'],");
                }
            }
            source.AppendLine("\t\t);");
            source.AppendLine("\t}");
            source.AppendLine();
            return source.ToString();
        }
    }

    public class EnumModelType : ComplexModelType
    {
        private Dictionary<int, string> _userDefinedEnumDictionary;

        public EnumModelType(Type type, string name) : base(type, name)
        {
            _userDefinedEnumDictionary = new Dictionary<int, string>();
            var fields = ParameterType.GetFields();
            if (fields != null && fields.Length > 1)
            {
                for (int i = 1; i < fields.Length; i++)
                {
                    var fieldName = fields[i].GetValue(null).ToString();
                    var fieldValue = (int)fields[i].GetValue(null);
                    if (fieldValue < 0)
                    {
                        continue;
                    }
                    else
                    {
                        _userDefinedEnumDictionary.Add(fieldValue, fieldName);
                    }
                }
                _userDefinedEnumDictionary = _userDefinedEnumDictionary.OrderBy(x => x.Key).ToDictionary(p => p.Key, o => o.Value);
            }
            var firstChildName = _userDefinedEnumDictionary.FirstOrDefault().Value;
            DefaultValue = $"{GetFlutterTypeName()}.{firstChildName}";
        }

        public override string GetDartString()
        {
            var dartString = new StringBuilder();
            dartString.AppendLine($"enum {GetFlutterTypeName()} {{");
            int lastValue = 0;
            foreach (var userDefinedEnum in _userDefinedEnumDictionary)
            {
                var index = userDefinedEnum.Key;
                var name = userDefinedEnum.Value;
                while (lastValue != index)
                {
                    dartString.AppendLine($"\tplaceHolder_{lastValue},");
                    lastValue++;
                }
                if (lastValue == index)
                {
                    dartString.AppendLine($"\t{name},");
                    lastValue++;
                }
            }
            dartString.AppendLine("}");
            return dartString.ToString();
        }
    }

    public class EnumNullableModelType : ComplexModelType
    {
        public EnumNullableModelType(Type type, string name) : base(type, name)
        {
        }

        public override string GetDartString()
        {
            var dartString = new StringBuilder();
            dartString.AppendLine($"enum {GetFlutterTypeName()} {{");
            foreach (var enumvalue in Enum.GetNames(ParameterType))
            {
                dartString.AppendLine($"\t{enumvalue},");
            }
            dartString.AppendLine("}");
            return dartString.ToString();
        }
    }

    public class ArrayModelType : SimpleModelType
    {
        public ModelType Child;

        public ArrayModelType(Type type, string name) : base(type, name)
        {
            var arrayTypeName = ParameterType.FullName.Replace("[]", string.Empty);
            var arrayType = ParameterType.Assembly.GetType(arrayTypeName);
            Child = ModelTypeGenerator.Create(arrayType, "");
        }

        public override string GetFlutterTypeName(bool isDefault = true, bool isGenericName = false, bool isSingle = false)
        {
            var parameterTypeName = Child.GetFlutterTypeName();
            if (Index > 1)
            {
                return $"List<{parameterTypeName}{Index}>";
            }
            else
            {
                return $"List<{parameterTypeName}>";
            }
        }
    }

    public class ListModelType : SimpleModelType
    {
        public ModelType GenericArgumentModelType;

        public ListModelType(Type type, string name) : base(type, name)
        {
            var modelType = ModelTypeGenerator.Create(type.GetGenericArguments()[0], "");
            GenericArgumentModelType = modelType;
        }

        public override string GetFlutterTypeName(bool isDefault = true, bool isGenericName = false, bool isSingle = false)
        {
            if (isDefault)
            {
                return "List<" + GenericArgumentModelType.GetFlutterTypeName() + ">";
            }

            if (isGenericName)
            {
                return "List<T>";
            }
            if (isSingle)
            {
                return "List";
            }

            return "List<" + GenericArgumentModelType.GetFlutterTypeName() + " >";
        }
    }

    /// <summary>
    /// Dictionary Type
    /// </summary>
    public class DictionaryModelType : SimpleModelType
    {
        public List<ModelType> GenericArgumentModelTypeList;

        public DictionaryModelType(Type type, string name) : base(type, name)
        {
            GenericArgumentModelTypeList = new List<ModelType>();
            foreach (var argumentType in type.GetGenericArguments())
            {
                var modelType = ModelTypeGenerator.Create(argumentType, "");
                GenericArgumentModelTypeList.Add(modelType);
            }
        }

        public override string GetFlutterTypeName(bool isDefault = true, bool isGenericName = false, bool isSingle = false)
        {
            if (isDefault)
            {
                return "Map<" + GenericArgumentModelTypeList[0].GetFlutterTypeName() + "," + GenericArgumentModelTypeList[1].GetFlutterTypeName() + ">";
            }
            if (isSingle)
            {
                return "Map";
            }
            return "Map<" + GenericArgumentModelTypeList[0].GetFlutterTypeName() + "," + GenericArgumentModelTypeList[1].GetFlutterTypeName() + ">";
        }
    }

    /// <summary>
    /// User Defined Generic Complex Model Type
    /// </summary>
    public class UserDefinedGenericModelType : ComplexModelType
    {
        public ModelType GenericArgumentModelType;

        public UserDefinedGenericModelType(Type type, string name) : base(type, name)
        {
            var properties = type.GetProperties();
            foreach (var property in properties)
            {
                var child = ModelTypeGenerator.Create(property.PropertyType, property.Name);
                Children.Add(child);
            }
            var modelType = ModelTypeGenerator.Create(type.GetGenericArguments()[0], "");
            GenericArgumentModelType = modelType;
        }

        public override string GetFlutterTypeName(bool isDefault = true, bool isGenericName = false, bool isSingle = false)
        {
            if (Index > 1)
            {
                if (isDefault)
                {
                    return ParameterType.Name[0..^2] + "<" + GenericArgumentModelType.GetFlutterTypeName() + Index + ">";
                }

                if (isGenericName)
                {
                    return ParameterType.Name[0..^2] + Index + "<T>";
                }
                if (isSingle)
                {
                    return ParameterType.Name[0..^2] + Index;
                }

                return ParameterType.Name[0..^2] + "<" + GenericArgumentModelType.GetFlutterTypeName() + Index + ">";
            }
            else
            {
                if (isDefault)
                {
                    return ParameterType.Name[0..^2] + "<" + GenericArgumentModelType.GetFlutterTypeName() + ">";
                }

                if (isGenericName)
                {
                    return ParameterType.Name[0..^2] + "<T>";
                }
                if (isSingle)
                {
                    return ParameterType.Name[0..^2];
                }

                return ParameterType.Name[0..^2] + "<" + GenericArgumentModelType.GetFlutterTypeName() + ">";
            }
        }

        public override string GetDartString()
        {
            var dartString = new StringBuilder();
            dartString.AppendLine($"class {GetFlutterTypeName(false, true)} {{");
            foreach (var child in Children)
            {
                string argumentName;
                var questionMark = QuestionMarkCheck(child);

                if (child is ListModelType listModelType)
                {
                    argumentName = GenericArgumentModelType.ParameterType == listModelType.GenericArgumentModelType.ParameterType ? listModelType.GetFlutterTypeName(false, true) : listModelType.GetFlutterTypeName();
                }
                else if (child is UserDefinedGenericModelType userDefinedGenericComplexModelType)
                {
                    argumentName = GenericArgumentModelType.ParameterType == userDefinedGenericComplexModelType.GenericArgumentModelType.ParameterType ? userDefinedGenericComplexModelType.GetFlutterTypeName(false, true) : userDefinedGenericComplexModelType.GetFlutterTypeName();
                }
                else
                {
                    argumentName = child.GetFlutterTypeName();
                }
                dartString.AppendLine($"\t{argumentName}{questionMark} {child.Name_Lower};");
            }
            dartString.AppendLine();
            dartString.AppendLine($"\t{GetFlutterTypeName(false, false, true)}({{");
            foreach (var child in Children)
            {
                if (child.DefaultValue != null)
                {
                    dartString.AppendLine($"\t\tthis.{child.Name_Lower} = {child.DefaultValue},");
                }
                else
                {
                    dartString.AppendLine($"\t\tthis.{child.Name_Lower},");
                }
            }
            dartString.AppendLine("\t});");
            dartString.AppendLine();
            dartString.Append(FromJson(Children));
            dartString.Append(ToJson(Children));
            dartString.AppendLine("}");
            return dartString.ToString();
        }
    }

    public class UserDefinedModelType : ComplexModelType
    {
        public UserDefinedModelType(Type type, string name) : base(type, name)
        {
            var properties = type.GetProperties();
            foreach (var property in properties)
            {
                var child = ModelTypeGenerator.Create(property.PropertyType, property.Name);
                Children.Add(child);
            }
        }

        public override string GetFlutterTypeName(bool isDefault = true, bool isGenericName = false, bool isSingle = false)
        {
            if (Index > 1)
            {
                return $"{ParameterType.Name}{Index}";
            }
            else
            {
                return $"{ParameterType.Name}";
            }
        }

        public override string GetDartString()
        {
            var dartString = new StringBuilder();
            dartString.AppendLine($"class {GetFlutterTypeName()} {{");
            foreach (var child in Children)
            {
                var questionMark = QuestionMarkCheck(child);
                if (child is ListModelType || child is DictionaryModelType || child is UserDefinedGenericModelType)
                {
                    dartString.AppendLine($"\t{child.GetFlutterTypeName(false, false)}{questionMark} {child.Name_Lower};");
                }
                else
                {
                    dartString.AppendLine($"\t{child.GetFlutterTypeName()}{questionMark} {child.Name_Lower};");
                }
            }
            dartString.AppendLine();
            if (Children.Count == 0)
            {
                dartString.AppendLine($"\t{GetFlutterTypeName()}();");
            }
            else
            {
                dartString.AppendLine($"\t{GetFlutterTypeName()}({{");
                foreach (var child in Children)
                {
                    if (child.DefaultValue != null)
                    {
                        dartString.AppendLine($"\t\tthis.{child.Name_Lower} = {child.DefaultValue},");
                    }
                    else
                    {
                        dartString.AppendLine($"\t\tthis.{child.Name_Lower},");
                    }
                }
                dartString.AppendLine("\t});");
            }
            dartString.AppendLine();

            dartString.Append(FromJson(Children));
            dartString.Append(ToJson(Children));
            dartString.AppendLine("}");
            return dartString.ToString();
        }
    }

    public class UserDefinedDerivedModelType : ComplexModelType
    {
        public ModelType BaseType;

        public UserDefinedDerivedModelType(Type type, string name) : base(type, name)
        {
            BaseType = ModelTypeGenerator.Create(type.BaseType, "");
            if (!(BaseType is UserDefinedGenericModelType))
            {
                var properties = type.GetProperties();
                foreach (var property in properties)
                {
                    var child = ModelTypeGenerator.Create(property.PropertyType, property.Name);
                    Children.Add(child);
                }
            }
        }

        public override string GetFlutterTypeName(bool isDefault = true, bool isGenericName = false, bool isSingle = false)
        {
            if (Index > 1)
            {
                return $"{ParameterType.Name}{Index}";
            }
            else
            {
                return $"{ParameterType.Name}";
            }
        }

        public override string GetDartString()
        {
            var dartString = new StringBuilder();
            dartString.AppendLine($"class {GetFlutterTypeName()} extends {BaseType.GetFlutterTypeName()}{{");
            var baseType = BaseType as ComplexModelType;
            foreach (var child in Children)
            {
                if (baseType != null)
                {
                    if (!baseType.Children.Any(x => x.ParameterType == child.ParameterType && x.Name_Upper == child.Name_Upper))
                    {
                        var questionMark = QuestionMarkCheck(child);
                        if (child is ListModelType || child is DictionaryModelType || child is UserDefinedGenericModelType)
                        {
                            dartString.AppendLine($"\t{child.GetFlutterTypeName(false, false)}{questionMark} {child.Name_Lower};");
                        }
                        else
                        {
                            dartString.AppendLine($"\t{child.GetFlutterTypeName()}{questionMark} {child.Name_Lower};");
                        }
                    }
                    else
                    {
                        continue;
                    }
                }
                else
                {
                    var questionMark = QuestionMarkCheck(child);
                    if (child is ListModelType || child is DictionaryModelType || child is UserDefinedGenericModelType)
                    {
                        dartString.AppendLine($"\t{child.GetFlutterTypeName(false, false)}{questionMark} {child.Name_Lower};");
                    }
                    else
                    {
                        dartString.AppendLine($"\t{child.GetFlutterTypeName()}{questionMark} {child.Name_Lower};");
                    }
                }
            }
            dartString.AppendLine();
            if (Children.Count == 0)
            {
                dartString.AppendLine($"\t{GetFlutterTypeName()}(");
                if (baseType != null && !(baseType is UserDefinedGenericModelType))
                {
                    dartString.AppendLine($"\t) : super(");
                    foreach (var child in baseType.Children)
                    {
                        dartString.AppendLine($"\t\t\t{child.Name_Lower}: {child.Name_Lower},");
                    }
                    dartString.AppendLine($"\t\t);");
                }
                else
                {
                    dartString.AppendLine("\t);");
                }
            }
            else
            {
                dartString.AppendLine($"\t{GetFlutterTypeName()}({{");
                foreach (var child in Children)
                {
                    if (baseType != null)
                    {
                        if (baseType.Children.Any(x => x.ParameterType == child.ParameterType && x.Name_Upper == child.Name_Upper))
                        {
                            var questionMark = QuestionMarkCheck(child);
                            if (child.DefaultValue != null)
                            {
                                if (child is ListModelType || child is DictionaryModelType || child is UserDefinedGenericModelType)
                                {
                                    dartString.AppendLine($"\t\t{child.GetFlutterTypeName(false, false)}{questionMark} {child.Name_Lower} = {child.DefaultValue},");
                                }
                                else
                                {
                                    dartString.AppendLine($"\t\t{child.GetFlutterTypeName()}{questionMark} {child.Name_Lower} = {child.DefaultValue},");
                                }
                            }
                            else
                            {
                                if (child is ListModelType || child is DictionaryModelType || child is UserDefinedGenericModelType)
                                {
                                    dartString.AppendLine($"\t\t{child.GetFlutterTypeName(false, false)}{questionMark} {child.Name_Lower},");
                                }
                                else
                                {
                                    dartString.AppendLine($"\t\t{child.GetFlutterTypeName()}{questionMark} {child.Name_Lower},");
                                }
                            }
                        }
                        else
                        {
                            if (child.DefaultValue != null)
                            {
                                dartString.AppendLine($"\t\tthis.{child.Name_Lower} = {child.DefaultValue},");
                            }
                            else
                            {
                                dartString.AppendLine($"\t\tthis.{child.Name_Lower},");
                            }
                        }
                    }
                    else
                    {
                        if (child.DefaultValue != null)
                        {
                            dartString.AppendLine($"\t\tthis.{child.Name_Lower} = {child.DefaultValue},");
                        }
                        else
                        {
                            dartString.AppendLine($"\t\tthis.{child.Name_Lower},");
                        }
                    }
                }
                if (baseType != null)
                {
                    dartString.AppendLine($"\t}}) : super(");
                    foreach (var child in baseType.Children)
                    {
                        dartString.AppendLine($"\t\t\t{child.Name_Lower}: {child.Name_Lower},");
                    }
                    dartString.AppendLine($"\t\t);");
                }
                else
                {
                    dartString.AppendLine("\t});");
                }
            }

            dartString.AppendLine();
            dartString.Append(FromJson(Children));
            dartString.Append(ToJson(Children));
            dartString.AppendLine("}");
            return dartString.ToString();
        }

        protected override string ToJson(List<ModelType> Children)
        {
            var source = new StringBuilder();
            source.AppendLine("\tMap<String, dynamic> toJson() {");
            source.AppendLine("\t\tfinal map = super.toJson();");
            foreach (var child in Children)
            {
                if (BaseType is ComplexModelType complexModelType)
                {
                    if (!complexModelType.Children.Any(x => x.ParameterType == child.ParameterType && x.Name_Upper == child.Name_Upper))
                    {
                        if (child is EnumModelType)
                        {
                            source.AppendLine($"\t\tmap['{child.Name_Upper}'] = {child.Name_Lower}.index;");
                        }
                        else if (child.DefaultValue != null)
                        {
                            source.AppendLine($"\t\tmap['{child.Name_Upper}'] = {child.Name_Lower};");
                        }
                        else if (child is DateTimeModelType)
                        {
                            source.AppendLine($"\t\tif({child.Name_Lower} != null)");
                            source.AppendLine($"\t\t\tmap['{child.Name_Upper}'] = JsonRpcUtils.dateFormat({child.Name_Lower}!);");
                        }
                        else
                        {
                            source.AppendLine($"\t\tif({child.Name_Lower} != null)");
                            source.AppendLine($"\t\t\tmap['{child.Name_Upper}'] = {child.Name_Lower};");
                        }
                    }
                }
            }
            source.AppendLine("\t\treturn map;");
            source.AppendLine("\t}");
            return source.ToString();
        }
    }
}