using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Models;
using System.Data.SqlClient;
using System.Data;

namespace DAL
{
    /// <summary>
    /// 年月数据访问类
    /// </summary>
    public class YearMonthService
    {
        // <summary>
        /// 查询所有
        /// </summary>
        /// <param name="sql">sql语句</param>
        /// <param name="param">可变参数数组</param>
        /// <returns>返回集合</returns>
        List<YearMonth> excuteSql(string sql, params SqlParameter[] param)
        {
            return ServiceBase<YearMonth>.excuteSql(new YearMonth(), "YearMonth", sql, CommandType.Text, param);
        }


        /// <summary>
        /// 获取单个对象
        /// </summary>
        /// <param name="sql">sql语句</param>
        /// <param name="param">可变参数数组</param>
        /// <returns>返回空或者单个对象</returns>
        YearMonth excuteType(string sql, params SqlParameter[] param)
        {
            //查询结果放入对象集合
            List<YearMonth> ymList = excuteSql(sql, param);
            //判断集合是否为空
            if (ymList == null || ymList.Count == 0)
                //返回null
                return null;
            //返回单个对象
            return ymList[0];
        }

        /// <summary>
        /// 查询年月
        /// </summary>
        /// <returns></returns>
        public List<YearMonth> GetYearMonth()
        {
            return excuteSql("select DISTINCT SubString(SwipeDate,0,8) as YearMonths from attendanceData order by SubString(SwipeDate,0,8) desc");
        }

        /// <summary>
        /// 获取工作日
        /// </summary>
        /// <param name="starDate"></param>
        /// <param name="endDate"></param>
        /// <returns></returns>
        public List<YearMonth> GetCalendarWeekCount(string starDate, string endDate)
        {
            string sql = "select distinct calendarDate as YearMonths from Calendar where ctid = 0 and (calendardate between '" + starDate + "' and '" + endDate + "')";
            return excuteSql(sql);
        }


        /// <summary>
        /// 在考核表里查询年月
        /// </summary>
        /// <returns></returns>
        public List<YearMonth> GetYearMonthOnMonthKpiItemScore()
        {

            return excuteSql("select distinct YearMonth as YearMonths from MonthKpiItemScore order by YearMonth asc");
        }

        /// <summary>
        /// 判断考勤是否有大于28日但是月份没有+1时的情况
        /// </summary>
        /// <returns></returns>
        public YearMonth GetLastDate()
        {
            return excuteType("select DISTINCT(SwipeDate) as YearMonths  from attendanceData order by SwipeDate desc");
        }
    }
}