using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;

namespace PTMedicalInsurance.Common
{
    public class FastReportFunction
    {
        /// <summary>
        /// 兼容方法
        /// </summary>
        /// <returns></returns>
        public static string moneyToChinese(object money)
        {
            return MoneyToUpper(string.Format("{0}", money));
        }
        /// <summary>
        /// 金额转换成中文大写金额
        /// </summary>
        /// <param name="LowerMoney">eg:10.74</param>
        /// <returns></returns>
        public static string MoneyToUpper(string LowerMoney)
        {
            string functionReturnValue = null;
            bool IsNegative = false; // 是否是负数
            if (LowerMoney.Trim().Substring(0, 1) == "-")
            {
                // 是负数则先转为正数
                LowerMoney = LowerMoney.Trim().Remove(0, 1);
                IsNegative = true;
            }
            string strLower = null;
            string strUpart = null;
            string strUpper = null;
            int iTemp = 0;
            // 保留两位小数 123.489→123.49　　123.4→123.4
            LowerMoney = Math.Round(double.Parse(LowerMoney), 2).ToString();
            if (LowerMoney.IndexOf(".") > 0)
            {
                if (LowerMoney.IndexOf(".") == LowerMoney.Length - 2)
                {
                    LowerMoney = LowerMoney + "0";
                }
            }
            else
            {
                LowerMoney = LowerMoney + ".00";
            }
            strLower = LowerMoney;
            iTemp = 1;
            strUpper = "";
            while (iTemp <= strLower.Length)
            {
                switch (strLower.Substring(strLower.Length - iTemp, 1))
                {
                    case ".":
                        strUpart = "圆";
                        break;
                    case "0":
                        strUpart = "零";
                        break;
                    case "1":
                        strUpart = "壹";
                        break;
                    case "2":
                        strUpart = "贰";
                        break;
                    case "3":
                        strUpart = "叁";
                        break;
                    case "4":
                        strUpart = "肆";
                        break;
                    case "5":
                        strUpart = "伍";
                        break;
                    case "6":
                        strUpart = "陆";
                        break;
                    case "7":
                        strUpart = "柒";
                        break;
                    case "8":
                        strUpart = "捌";
                        break;
                    case "9":
                        strUpart = "玖";
                        break;
                }

                switch (iTemp)
                {
                    case 1:
                        strUpart = strUpart + "分";
                        break;
                    case 2:
                        strUpart = strUpart + "角";
                        break;
                    case 3:
                        strUpart = strUpart + "";
                        break;
                    case 4:
                        strUpart = strUpart + "";
                        break;
                    case 5:
                        strUpart = strUpart + "拾";
                        break;
                    case 6:
                        strUpart = strUpart + "佰";
                        break;
                    case 7:
                        strUpart = strUpart + "仟";
                        break;
                    case 8:
                        strUpart = strUpart + "万";
                        break;
                    case 9:
                        strUpart = strUpart + "拾";
                        break;
                    case 10:
                        strUpart = strUpart + "佰";
                        break;
                    case 11:
                        strUpart = strUpart + "仟";
                        break;
                    case 12:
                        strUpart = strUpart + "亿";
                        break;
                    case 13:
                        strUpart = strUpart + "拾";
                        break;
                    case 14:
                        strUpart = strUpart + "佰";
                        break;
                    case 15:
                        strUpart = strUpart + "仟";
                        break;
                    case 16:
                        strUpart = strUpart + "万";
                        break;
                    default:
                        strUpart = strUpart + "";
                        break;
                }

                strUpper = strUpart + strUpper;
                iTemp = iTemp + 1;
            }

            strUpper = strUpper.Replace("零拾", "零");
            strUpper = strUpper.Replace("零佰", "零");
            strUpper = strUpper.Replace("零仟", "零");
            strUpper = strUpper.Replace("零零零", "零");
            strUpper = strUpper.Replace("零零", "零");
            strUpper = strUpper.Replace("零角零分", "整");
            strUpper = strUpper.Replace("零分", "整");
            strUpper = strUpper.Replace("零角", "零");
            strUpper = strUpper.Replace("零亿零万零圆", "亿圆");
            strUpper = strUpper.Replace("亿零万零圆", "亿圆");
            strUpper = strUpper.Replace("零亿零万", "亿");
            strUpper = strUpper.Replace("零万零圆", "万圆");
            strUpper = strUpper.Replace("零亿", "亿");
            strUpper = strUpper.Replace("零万", "万");
            strUpper = strUpper.Replace("零圆", "圆");
            strUpper = strUpper.Replace("零零", "零");

            // 对壹圆以下的金额的处理
            if (strUpper.Substring(0, 1) == "圆")
            {
                strUpper = strUpper.Substring(1, strUpper.Length - 1);
            }
            if (strUpper.Substring(0, 1) == "零")
            {
                strUpper = strUpper.Substring(1, strUpper.Length - 1);
            }
            if (strUpper.Substring(0, 1) == "角")
            {
                strUpper = strUpper.Substring(1, strUpper.Length - 1);
            }
            if (strUpper.Substring(0, 1) == "分")
            {
                strUpper = strUpper.Substring(1, strUpper.Length - 1);
            }
            if (strUpper.Substring(0, 1) == "整")
            {
                strUpper = "零圆整";
            }
            functionReturnValue = strUpper;

            if (IsNegative == true)
            {
                return "负" + functionReturnValue;
            }
            else
            {
                return functionReturnValue;
            }
        }

        /// <summary>
        /// 取两点时间之间的天数、小时、分钟、秒钟
        /// </summary>
        /// <param name="DateTime1"></param>
        /// <param name="DateTime2"></param>
        /// <returns></returns>
        public static string DateDiff(DateTime DateTime1, DateTime DateTime2)
        {
            string dateDiff = null;

            TimeSpan ts1 = new TimeSpan(DateTime1.Ticks);
            TimeSpan ts2 = new TimeSpan(DateTime2.Ticks);
            TimeSpan ts = ts1.Subtract(ts2).Duration();
            //dateDiff = ts.Days.ToString() + "天"
            //         + ts.Hours.ToString() + "小时"
            //         + ts.Minutes.ToString() + "分钟"
            //         + ts.Seconds.ToString() + "秒";

            if (ts.Days == 0)
                dateDiff = "1天";
            else
                dateDiff = ts.Days.ToString() + "天";

            return dateDiff;
        }
        public static void Register()
        {
            
            Type funType = typeof(FastReportFunction);

            MethodInfo methodUpper = funType.GetMethod("MoneyToUpper");
            MethodInfo methodChinese = funType.GetMethod("moneyToChinese");

            if (!FastReport.Utils.RegisteredObjects.IsTypeRegistered(funType))
            {
                FastReport.Utils.RegisteredObjects.Add(funType, "Functions,CustomFunctions",0x34);
                if(methodUpper != null)
                {
                    FastReport.Utils.RegisteredObjects.AddFunction(methodUpper, "CustomFunctions");
                }
                if(methodChinese != null)
                {
                    FastReport.Utils.RegisteredObjects.AddFunction(methodChinese, "CustomFunctions");
                }
                
            }
            
        }
    }
}