using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.ComponentModel;

namespace Core.StlMes.Client.PipeLeaveFactory.YdmObject
{
    public class YdmDateFormat
    {
        //返回每月的第一天和最后一天
        public static void ReturnDateFormat(int month, out string firstDay, out string lastDay)
        {
            int year = DateTime.Now.Year + month / 12;
            if (month != 12)
            {
                month = month % 12;
            }
            switch (month)
            {
                case 1:
                    firstDay = DateTime.Now.ToString(year + "-0" + month + "-01");
                    lastDay = DateTime.Now.ToString(year + "-0" + month + "-31");
                    break;
                case 2:
                    firstDay = DateTime.Now.ToString(year + "-0" + month + "-01");
                    if (DateTime.IsLeapYear(DateTime.Now.Year))
                        lastDay = DateTime.Now.ToString(year + "-0" + month + "-29");
                    else
                        lastDay = DateTime.Now.ToString(year + "-0" + month + "-28");
                    break;
                case 3:
                    firstDay = DateTime.Now.ToString(year + "-0" + month + "-01");
                    lastDay = DateTime.Now.ToString("yyyy-0" + month + "-31");
                    break;
                case 4:
                    firstDay = DateTime.Now.ToString(year + "-0" + month + "-01");
                    lastDay = DateTime.Now.ToString(year + "-0" + month + "-30");
                    break;
                case 5:
                    firstDay = DateTime.Now.ToString(year + "-0" + month + "-01");
                    lastDay = DateTime.Now.ToString(year + "-0" + month + "-31");
                    break;
                case 6:
                    firstDay = DateTime.Now.ToString(year + "-0" + month + "-01");
                    lastDay = DateTime.Now.ToString(year + "-0" + month + "-30");
                    break;
                case 7:
                    firstDay = DateTime.Now.ToString(year + "-0" + month + "-01");
                    lastDay = DateTime.Now.ToString(year + "-0" + month + "-31");
                    break;
                case 8:
                    firstDay = DateTime.Now.ToString(year + "-0" + month + "-01");
                    lastDay = DateTime.Now.ToString(year + "-0" + month + "-31");
                    break;
                case 9:
                    firstDay = DateTime.Now.ToString(year + "-0" + month + "-01");
                    lastDay = DateTime.Now.ToString(year + "-0" + month + "-30");
                    break;
                case 10:
                    firstDay = DateTime.Now.ToString(year + "-" + month + "-01");
                    lastDay = DateTime.Now.ToString(year + "-" + month + "-31");
                    break;
                case 11:
                    firstDay = DateTime.Now.ToString(year + "-" + month + "-01");
                    lastDay = DateTime.Now.ToString(year + "-" + month + "-30");
                    break;
                default:
                    firstDay = DateTime.Now.ToString(year + "-" + month + "-01");
                    lastDay = DateTime.Now.ToString(year + "-" + month + "-31");
                    break;
            }
        }
        /// <summary>
        /// 单号自增
        /// </summary>
        /// <param name="BaseNumber">原单号</param>
        /// <param name="prefix">单号前缀</param>
        /// <param name="digit">流水号</param>
        /// <returns>返回值</returns>
        public static string NextNumber(string BaseNumber, string prefix, string digit)
        {
            string NewNumber = "";//新值
            int InNumber = 1;//进位
            int PlaceValue;//位值
            char[] No = BaseNumber.ToCharArray();

            for (int i = BaseNumber.Length - 1; i >= 0; i--)
            {
                if (No[i] == '9' && InNumber == 1)
                {
                    InNumber = 1;
                    NewNumber = "0" + NewNumber;
                }
                else
                    if (InNumber == 1 && No[i] >= '0' && No[i] < '9')
                    {
                        PlaceValue = Int32.Parse(No[i].ToString());
                        PlaceValue = (InNumber + PlaceValue);
                        InNumber = 0;
                        NewNumber = PlaceValue.ToString() + NewNumber;
                    }
                    else
                    {
                        InNumber = 0;
                        NewNumber = No[i] + NewNumber;
                    }
            }
            if (BaseNumber == NewNumber)
                NewNumber = prefix + DateTime.Now.ToString("yyMMdd") + digit;
            return NewNumber;
        }
    }
}