using Newtonsoft.Json.Linq;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

namespace ServerPartTransmission.Common
{
    public class Validation
    {
        #region 方法 -> 检查必要参数
        /// <summary>
        /// 检查必要参数
        /// </summary>
        /// <param name="jsonString"></param>
        /// <param name="_RequiredDatas"></param>
        /// <returns></returns>
        public static string ISCheckData(string jsonString, string[] _RequiredDatas, int maxDataQuantity = 4)
        {
            if (!string.IsNullOrEmpty(jsonString))
            {
                JArray _JsonArray = JArray.Parse(jsonString);
                if (_JsonArray.Count > maxDataQuantity * 100)
                {
                    return string.Format("{{\"error\": -1 ,\"msg\": \"添加失败：json数据包不可超过{0}条数据\",\"rows\":[]}}", maxDataQuantity * 100);
                }

                for (int i = 0; i < _JsonArray.Count; i++)
                {
                    JObject _Json = JObject.Parse(_JsonArray[i].ToString());
                    foreach (string _RequiredData in _RequiredDatas)
                    {
                        if ((_Json.Property(_RequiredData.ToUpper()) == null &&
                             _Json.Property(_RequiredData.ToLower()) == null) ||
                             (_Json.Property(_RequiredData.ToUpper()) != null &&
                             _Json.Property(_RequiredData.ToUpper()).Value.ToString() == "") ||
                             (_Json.Property(_RequiredData.ToLower()) != null &&
                             _Json.Property(_RequiredData.ToLower()).Value.ToString() == ""))
                        {
                            return "{\"error\": -1 ,\"msg\": \"添加失败：第" + (i + 1) +
                                "组数据中，JSON缺少必要参数：" + _RequiredData + "\",\"rows\":[]}";
                        }
                    }
                }
                return null;
            }
            else
            {
                return "{\"error\": -1 ,\"msg\": \"添加失败：JSON参数解析异常！\",\"rows\":[]}";
            }
        }
        #endregion

        /// <summary>
        /// 验证时间格式是否有效
        /// </summary>
        /// <param name="str">时间</param>
        /// <returns></returns>
        public static bool IsDate(string str)
        {
            try
            {
                DateTime.Parse(str);
                return true;
            }
            catch (Exception ex)
            {
                return false;
            }
        }
    }
}