using Microsoft.AspNetCore.Authorization;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;

namespace CloudBuilder.CodeGenerator.Data
{
    public class ClassInfo
    {
        public string ClassName { get; set; }
        public string InterfaceName { get; set; }
        public string ImplementTypeName { get; set; }
        public string[] Usings { get; set; }

        public bool IsDownload { get; set; } = false;

        public ClassConstructorInfo[] ClassConstructorInfos;

        public ClassMethodInfo[] ClassMethodInfos;

        public ClassPropertyInfo[] ClassProperties;

        public ClassFieldInfo[] ClassFields;
    }

    public class ClassFieldInfo
    {
        public bool IsValueType { get; set; } = false;
        public string FieldName { get; set; }
        public string FieldTypeName { get; set; }

        public string FieldValue { get; set; }
    }

    public class ClassPropertyInfo
    {
        public bool IsValueType { get; set; } = false;
        public string PropertyName { get; set; }
        public string PropertyTypeName { get; set; }
    }

    public class ClassConstructorInfo
    {
        public string ConstructorName { get; set; }
        public MethodParameter[] Parameters { get; set; }
    }

    public class ClassMethodInfo
    {
        public string MethodName { get; set; }
        public string HttpName { get; set; } = "[HttpPost]";
        public string UnitOfWorkName { get; set; } = "[UnitOfWork]";
        public string AuthorizeName { get; set; } = "[AllowAnonymous]";
        public string PermissionOperate { get; set; } = "[PermissionOperate(name: {0}, operate: {1})]";
        public PermissionOperateAttribute PermissionOperateAttribute { get; set; }
        public string MethodReturnName { get; set; }
        public bool IsValueType { get; set; } = false;
        public MethodParameter[] Parameters { get; set; }
    }

    public class MethodParameter
    {
        public bool IsValueType { get; set; } = false;
        public string ParameterName { get; set; }
        public string ParameterTypeName { get; set; }

        public static bool CheckValueType(Type type)
        {
            var typeInfo = type.GetTypeInfo();
            if (typeInfo.IsGenericType && typeInfo.GetGenericTypeDefinition() == typeof(Nullable<>))
            {
                // nullable type, check if the nested type is simple.
                return CheckValueType(typeInfo.GetGenericArguments()[0]);
            }
            return typeInfo.IsPrimitive
              || typeInfo.BaseType?.Name == "ValueType"
              || typeInfo.IsEnum
              || type.Equals(typeof(string))
              || type.Equals(typeof(DateTime))
              || type.Equals(typeof(decimal));
        }
    }
}