using Newtonsoft.Json;
using System;
using System.ComponentModel;
using System.ComponentModel.DataAnnotations.Schema;
using System.Reflection;

namespace EC.Entity.PublicModel
{
	public class BaseEntity : INotifyPropertyChanged
	{
		public event PropertyChangedEventHandler PropertyChanged;

		public void OnPropertyChanged(string propertyName)
		{
			PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
		}

		public bool SetValue(string propertyName, string value)
		{
			if (!ContainProperty(propertyName)) { return false; }
			try
			{
				Type type = GetType();
				object objVal = Convert.ChangeType(value, type.GetProperty(propertyName).PropertyType);
				type.GetProperty(propertyName).SetValue(this, objVal, null);
				OnPropertyChanged(propertyName);
				return true;
			}
			catch
			{
				return false;
			}
		}

		public object GetValue(string propertyName)
		{
			if (!ContainProperty(propertyName)) { return null; }
			try
			{
				Type type = GetType();
				object objVal = type.GetProperty(propertyName).GetValue(this, null);
				return objVal;
			}
			catch
			{
				return null;
			}
		}

		/// <summary>
		/// 利用反射来判断对象是否包含某个属性
		/// </summary>
		/// <param name="instance">object</param>
		/// <param name="propertyName">需要判断的属性</param>
		/// <returns>是否包含</returns>
		public bool ContainProperty(string propertyName)
		{
			if (this != null && !string.IsNullOrEmpty(propertyName))
			{
				PropertyInfo _findedPropertyInfo = GetType().GetProperty(propertyName);
				return _findedPropertyInfo != null;
			}
			return false;
		}

		[NotMapped]
		public string FaultUri { get; set; } = "-1";

		public virtual bool IsUriGain(string uri)
		{
			return !(string.IsNullOrEmpty(uri) || uri.Equals(FaultUri, StringComparison.Ordinal));
		}

		public virtual T DeepCopy<T>()
		{
			string json = JsonConvert.SerializeObject(this);
			return JsonConvert.DeserializeObject<T>(json);
		}
	}
}