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using Gestor.Model.Attributes;
using System;
using System.ComponentModel;
using System.Reflection;
using System.Runtime.CompilerServices;
namespace Gestor.Common.Helpers
{
public static class EnumHelper
{
public static T2 GetAttribute<T, T2>(this T enumValue)
where T2 : class
{
T2 customAttribute;
string name = Enum.GetName(enumValue.GetType(), enumValue);
try
{
customAttribute = (T2)(Attribute.GetCustomAttribute(enumValue.GetType().GetField(name), typeof(T2)) as T2);
}
catch (Exception exception)
{
customAttribute = default(T2);
}
return customAttribute;
}
public static bool? GetDefault<T>(this T enumValue)
{
object customAttribute;
string name = Enum.GetName(enumValue.GetType(), enumValue);
FieldInfo field = enumValue.GetType().GetField(name);
if (field == null)
{
customAttribute = null;
}
else
{
customAttribute = Attribute.GetCustomAttribute(field, typeof(DefaultAttribute)) as DefaultAttribute;
}
if (customAttribute != null)
{
return new bool?(((DefaultAttribute)customAttribute).DefaultProperty);
}
return null;
}
public static string GetDescription<T>(this T enumValue)
{
object customAttribute;
string name = Enum.GetName(enumValue.GetType(), enumValue);
if (name == null)
{
return null;
}
FieldInfo field = enumValue.GetType().GetField(name);
if (field == null)
{
customAttribute = null;
}
else
{
customAttribute = Attribute.GetCustomAttribute(field, typeof(DescriptionAttribute)) as DescriptionAttribute;
}
if (customAttribute != null)
{
return ((DescriptionAttribute)customAttribute).Description;
}
return null;
}
public static bool GetHidden<T>(this T enumValue)
{
object customAttribute;
string name = Enum.GetName(enumValue.GetType(), enumValue);
FieldInfo field = enumValue.GetType().GetField(name);
if (field == null)
{
customAttribute = null;
}
else
{
customAttribute = Attribute.GetCustomAttribute(field, typeof(HiddenAttribute)) as HiddenAttribute;
}
return customAttribute != null;
}
public static string GetOldValue<T>(this T enumValue)
{
OldValueAttribute attribute = enumValue.GetAttribute<T, OldValueAttribute>();
if (attribute != null)
{
return attribute.OldValue;
}
return null;
}
public static string GetOldValue2<T>(this T enumValue)
{
OldValue2Attribute attribute = enumValue.GetAttribute<T, OldValue2Attribute>();
if (attribute != null)
{
return attribute.OldValue2;
}
return null;
}
public static int? GetOrder<T>(this T enumValue)
{
object customAttribute;
string name = Enum.GetName(enumValue.GetType(), enumValue);
FieldInfo field = enumValue.GetType().GetField(name);
if (field == null)
{
customAttribute = null;
}
else
{
customAttribute = Attribute.GetCustomAttribute(field, typeof(OrderAttribute)) as OrderAttribute;
}
if (customAttribute != null)
{
return new int?(((OrderAttribute)customAttribute).OrderProperty);
}
return null;
}
public static T ToEnumByOldValue<T>(this string oldValue)
{
Type type = typeof(T);
Type type1 = typeof(OldValueAttribute);
FieldInfo[] fields = type.GetFields();
for (int i = 0; i < (int)fields.Length; i++)
{
FieldInfo fieldInfo = fields[i];
OldValueAttribute customAttribute = Attribute.GetCustomAttribute(fieldInfo, type1) as OldValueAttribute;
if (customAttribute != null && customAttribute.OldValue == oldValue)
{
return (T)fieldInfo.GetValue(null);
}
}
return default(T);
}
public static T ToEnumByOldValue2<T>(this string oldValue)
{
Type type = typeof(T);
Type type1 = typeof(OldValue2Attribute);
FieldInfo[] fields = type.GetFields();
for (int i = 0; i < (int)fields.Length; i++)
{
FieldInfo fieldInfo = fields[i];
OldValue2Attribute customAttribute = Attribute.GetCustomAttribute(fieldInfo, type1) as OldValue2Attribute;
if (customAttribute != null && customAttribute.OldValue2 == oldValue)
{
return (T)fieldInfo.GetValue(null);
}
}
return default(T);
}
public static string Value<T>(this T enumValue)
{
return Convert.ToInt32(enumValue).ToString();
}
}
}
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