using System;
using System.Collections.Generic;

namespace Alipay.AopSdk.Core
{
	/// <summary>
	///     符合AOP习惯的纯字符串字典结构。
	/// </summary>
	public class AopDictionary : Dictionary<string, string>
	{
		private const string DATE_TIME_FORMAT = "yyyy-MM-dd HH:mm:ss";

		public AopDictionary()
		{
		}

		public AopDictionary(IDictionary<string, string> dictionary)
			: base(dictionary)
		{
		}

		/// <summary>
		///     添加一个新的键值对。空键或者空值的键值对将会被忽略。
		/// </summary>
		/// <param name="key">键名称</param>
		/// <param name="value">键对应的值，目前支持：string, int, long, double, bool, DateTime类型</param>
		public void Add(string key, object value)
		{
			string strValue;

			if (value == null)
			{
				strValue = null;
			}
			else if (value is string)
			{
				strValue = (string) value;
			}
			else if (value is DateTime?)
			{
				var dateTime = value as DateTime?;
				strValue = dateTime.Value.ToString(DATE_TIME_FORMAT);
			}
			else if (value is int?)
			{
				strValue = (value as int?).Value.ToString();
			}
			else if (value is long?)
			{
				strValue = (value as long?).Value.ToString();
			}
			else if (value is double?)
			{
				strValue = (value as double?).Value.ToString();
			}
			else if (value is bool?)
			{
				strValue = (value as bool?).Value.ToString().ToLower();
			}
			else
			{
				strValue = value.ToString();
			}

			Add(key, strValue);
		}

		public new void Add(string key, string value)
		{
			if (!string.IsNullOrEmpty(key) && !string.IsNullOrEmpty(value))
				base.Add(key, value);
		}
	}
}