using System;
using System.Data;
using System.Data.Common;
using System.ComponentModel;
using System.Text;
using Wellan.Data;
using Wellan.Common;

/// <summary>
/// 薪資加減項資料處理類別
/// </summary>
[DataObject(true)]
public class RsajDAC : Wellan.Data.WDAC
{
    public RsajDAC()
    {
    }

    public RsajDAC(string connectionConfig, string connectionConfigName)
      : this()
    {
        this._connectionConfig = connectionConfig;
        this._connectionConfigName = connectionConfigName;
    }

    public RsajDAC(WQuery query)
    {
        this._query = query;
    }

    /// <summary>
    /// 取得某年月、某人員薪資加減項紀錄
    /// </summary>
    /// <param name="yymm">年月</param>
    /// <param name="rseno">人員編號</param>
    /// <param name="rspyn">專案年度編號</param>
    /// <param name="tran">要加入的交易</param>
    public DataTable GetRSAJ(DateTime yymm, string rseno, string rspyn, DbTransaction tran)
    {
        DbCommand cmd = Query.NewCommand(
          @"SELECT RSAMT, RSDOC
            FROM RSAJ WHERE RSENO=@RSENO AND RSPYN=@RSPYN
            AND RSYMM = @YYMM");
        cmd.Parameters.Add(Query.NewParameter("RSENO", rseno));
        cmd.Parameters.Add(Query.NewParameter("RSPYN", rspyn));
        cmd.Parameters.Add(Query.NewParameter("YYMM", yymm));
        cmd.Connection = tran.Connection;
        cmd.Transaction = tran;
        DbDataAdapter da = Query.NewDataAdapter(cmd);
        DataTable result = new DataTable();
        da.Fill(result);
        return result;
    }

    /// <summary>
    /// 寫特休結算薪資加減項
    /// </summary>
    /// <param name="yymm"></param>
    /// <param name="rseno"></param>
    /// <param name="rspyn"></param>
    /// <param name="rsamt"></param>
    /// <param name="rsdoc"></param>
    public string WriteAnnualLeaveSalary(DateTime yymm, string rseno, string rspyn, int rsamt, string rsdoc)
    {
        DbCommand cmd = Query.NewCommand();
        var rsren = GetAnnualLeaveSalaryREN(yymm, rseno, rspyn);
        if (string.IsNullOrEmpty(rsren) && rsamt > 0)
        {
            cmd.CommandText =
              @"INSERT INTO RSAJ
                    (TRDAT, TRMOD, TRUSR, RSREN, RSENO, RSPYN, RSYMM, RSAMT, RSDOC, APPNO)
                VALUES
                    (@TRDAT, 'INSERT', @TRUSR, @RSREN, @RSENO, @RSPYN, @RSYMM, @RSAMT, @RSDOC, 1)";
            cmd.Parameters.Clear();
            cmd.Parameters.Add(Query.NewParameter("TRDAT", DateTime.UtcNow.AddHours(8)));
            cmd.Parameters.Add(Query.NewParameter("TRUSR", UserId));
            cmd.Parameters.Add(Query.NewParameter("RSREN", WGuard1.WNextRen(yymm, "RSAJ", "RSREN", "YYYYMM\"F\"<9999>", "", null)));
            cmd.Parameters.Add(Query.NewParameter("RSENO", rseno));
            cmd.Parameters.Add(Query.NewParameter("RSPYN", rspyn));
            cmd.Parameters.Add(Query.NewParameter("RSYMM", yymm));
            cmd.Parameters.Add(Query.NewParameter("RSAMT", rsamt));
            cmd.Parameters.Add(Query.NewParameter("RSDOC", rsdoc));
            Query.ExecuteNonQuery(cmd);
        }
        else if (rsamt == 0)
        {
            cmd.CommandText = @"DELETE FROM RSAJ WHERE RSREN = @RSREN";
            cmd.Parameters.Add(Query.NewParameter("RSREN", rsren));
            Query.ExecuteNonQuery(cmd);
        }
        else
        {
            cmd.CommandText =
              @"UPDATE RSAJ
                SET   TRDAT = @TRDAT
                    , TRMOD = 'UPDATE'
                    , TRUSR = @TRUSR
                    , RSENO = @RSENO
                    , RSPYN = @RSPYN
                    , RSYMM = @RSYMM
                    , RSAMT = @RSAMT
                    , RSDOC = @RSDOC
                    , APPNO = APPNO + 1
                WHERE RSREN = @RSREN";
            cmd.Parameters.Clear();
            cmd.Parameters.Add(Query.NewParameter("TRDAT", DateTime.UtcNow.AddHours(8)));
            cmd.Parameters.Add(Query.NewParameter("TRUSR", UserId));
            cmd.Parameters.Add(Query.NewParameter("RSENO", rseno));
            cmd.Parameters.Add(Query.NewParameter("RSPYN", rspyn));
            cmd.Parameters.Add(Query.NewParameter("RSYMM", yymm));
            cmd.Parameters.Add(Query.NewParameter("RSAMT", rsamt));
            cmd.Parameters.Add(Query.NewParameter("RSDOC", rsdoc));
            cmd.Parameters.Add(Query.NewParameter("RSREN", rsren));
            Query.ExecuteNonQuery(cmd);
        }
        return rsren;
    }

    public string GetAnnualLeaveSalaryREN(DateTime yymm, string rseno, string rspyn)
    {
        DbCommand cmd = Query.NewCommand(
          @"SELECT RSREN
            FROM RSAJ 
            WHERE RSENO=@RSENO 
              AND RSPYN=@RSPYN
              AND RSYMM=@RSYMM
              AND RSREN LIKE '______F____'");
        cmd.Parameters.Add(Query.NewParameter("RSENO", rseno));
        cmd.Parameters.Add(Query.NewParameter("RSPYN", rspyn));
        cmd.Parameters.Add(Query.NewParameter("RSYMM", yymm));
        return GetStringValue(Query.ExecuteScalar(cmd));
    }

    /// <summary>
    /// 薪資加減項 Grid 分頁查詢
    /// </summary>
    [DataObjectMethod(DataObjectMethodType.Select)]
    public DataTable SelectPage(int startRowIndex, int maximumRows, string RSENO, string RSPYN)
    {
        DbCommand cmd = Query.NewCommand();

        StringBuilder filter = new StringBuilder();
        BuildFilter(filter, cmd, RSENO, RSPYN);

        cmd.CommandText = String.Format(
            @"SELECT * FROM
              (
                SELECT *, ROW_NUMBER() OVER (ORDER BY RSYMM DESC, RSREN DESC) AS ROWID
                FROM RSAJ WHERE 1=1 {0}
              ) AS TMP
              WHERE ROWID BETWEEN @STARTROWINDEX + 1 AND @STARTROWINDEX + @MAXIMUMROWS
              ORDER BY ROWID",
            filter.ToString());
        cmd.Parameters.Add(Query.NewParameter("STARTROWINDEX", startRowIndex));
        cmd.Parameters.Add(Query.NewParameter("MAXIMUMROWS", maximumRows));

        return Query.Select(cmd);
    }

    /// <summary>
    /// 薪資加減項 Grid 查詢筆數
    /// </summary>
    [DataObjectMethod(DataObjectMethodType.Select)]
    public int SelectCount(string RSENO, string RSPYN)
    {
        DbCommand cmd = Query.NewCommand();

        StringBuilder filter = new StringBuilder();
        BuildFilter(filter, cmd, RSENO, RSPYN);

        cmd.CommandText = String.Format("SELECT COUNT(*) FROM RSAJ WHERE 1=1 {0}", filter.ToString());
        return WDAC.GetInt32Value(Query.ExecuteScalar(cmd));
    }

    /// <summary>
    /// 組出薪資加減項 Grid 的查詢條件 (與舊 AddSearch 行為一致)
    /// </summary>
    private void BuildFilter(StringBuilder sb, DbCommand cmd, string RSENO, string RSPYN)
    {
        if (!string.IsNullOrEmpty(RSENO))
        {
            sb.Append(" AND RSENO LIKE @RSENO1 ");
            cmd.Parameters.Add(Query.NewParameter("RSENO1", RSENO + "%"));
        }
        if (!string.IsNullOrEmpty(RSPYN))
        {
            sb.Append(" AND RSPYN LIKE @RSPYN1 ");
            cmd.Parameters.Add(Query.NewParameter("RSPYN1", RSPYN + "%"));
        }
    }
}