using System;
using System.Linq;
using System.Reflection;

namespace Luticate2.Utils.Utils
{
    public static class LuCoreUtilsExtensions
    {
        public static bool HasProperty(this Type type, string name)
        {
            return type.GetProperty(name) != null;
        }

        public static string ToSnakeCase(this string str)
        {
            if (str == null)
            {
                throw new ArgumentNullException(nameof(str));
            }
            return string.Concat(str.Select((x, i) => i > 0 && char.IsUpper(x) ? "_" + x.ToString() : x.ToString())).ToLower();
        }

        public static T ToOptEnum<T>(this string model)
        {
            return model == null ? default(T) : (T) Enum.Parse(typeof(T), model);
        }

        public static T ToEnum<T>(this string model)
        {
            return (T) Enum.Parse(typeof(T), model);
        }

        public static Guid? ToOptGuid(this string str)
        {
            return str == null ? (Guid?)null : new Guid(str);
        }

        public static Guid ToGuid(this string str)
        {
            return new Guid(str);
        }

        public static string ToDbo(this Guid model)
        {
            return model.ToString();
        }

        public static string ToDbo(this Guid? model)
        {
            return model?.ToDbo();
        }

        public static DateTime ToDbo(this DateTime model)
        {
            return model.ToLocalTime().ToUniversalTime();
        }

        public static DateTime? ToDbo(this DateTime? model)
        {
            return model?.ToDbo();
        }

        public static DateTime ToModel(this DateTime model)
        {
            return model.ToUniversalTime();
        }

        public static DateTime? ToModel(this DateTime? model)
        {
            return model?.ToModel();
        }
    }
}