Fill Absent text in empty place using pivot sql

Below is pivot query for my requiremnt.

    Declare @cols NVARCHAR(Max)='';
    ;With log_date AS (
    SELECT BatchStartDate as l_date FROM Table_Batch_Lookup
    UNION ALL
    SELECT DATEADD(dd, 1, l_date)  FROM log_date AS ld , Table_Batch_Lookup AS tb  WHERE ld.l_date<DATEADD(dd, -1, tb.BatchEndDate)
    )
    SELECT @cols = COALESCE (@cols + ',[' + CONVERT(NVARCHAR,CONVERT(VARCHAR(10), l_Date, 111), 106) + ']','[' + CONVERT(NVARCHAR, l_Date, 106) + ']') FROM (SELECT DISTINCT CONVERT(VARCHAR(10), l_Date, 111) AS l_date FROM log_date) PV;

    Declare @totalScore INT =len(@cols) - len(replace(@cols, ',', ''))

    DECLARE @query NVARCHAR(MAX); 
    SET @query = 'SELECT t_info.TraineeID,t_batch.BatchId,t_info.Name,t_info.Mobile'+@cols+'  FROM  Table_TraineeInfo AS t_info  Left JOIN       
                  (SELECT * FROM 
                 (
                     SELECT TraineeID,BatchId,Attendance,CONVERT(VARCHAR(10), l_Date, 111) AS l_date FROM Table_Attendance_Log
                 ) x
                 PIVOT 
                 (
                     MAX(Attendance)
                     FOR l_Date IN (' + right(@cols, len(@cols)-1)+ ')
                ) p ) AS f_pv ON t_info.TraineeID=f_pv.TraineeID JOIN Table_Batch_Lookup as t_batch ON t_batch.BatchId=t_info.BatchId

                WHERE t_batch.BatchId=45;
                ' ;    
    EXEC SP_EXECUTESQL @query;
Below is my scrip table creation scripts with data. Table_TraineeInfo is candidate registeration details table, Table_Batch_Lookup is batch detail when batch start date and end date base on filling in pivot, Table_Attendance_Log is candidate attendance log.

CREATE TABLE [dbo].[Table_TraineeInfo](
    [TraineeID] [int] NULL,
    [BatchId] [int] NULL,
    [Name] [varchar](max) NULL,
    [Mobile] [varchar](10) NULL
) ON [PRIMARY]
GO
SET ANSI_PADDING OFF
GO
INSERT [dbo].[Table_TraineeInfo] ([TraineeID], [BatchId], [Name], [Mobile]) VALUES (243, 45, N'demo201', N'9888562341')
INSERT [dbo].[Table_TraineeInfo] ([TraineeID], [BatchId], [Name], [Mobile]) VALUES (244, 45, N'demo202', N'9888562342')
INSERT [dbo].[Table_TraineeInfo] ([TraineeID], [BatchId], [Name], [Mobile]) VALUES (246, 45, N'demo204', N'9888562344')
INSERT [dbo].[Table_TraineeInfo] ([TraineeID], [BatchId], [Name], [Mobile]) VALUES (247, 45, N'demo205', N'9999999999')
/****** Object:  Table [dbo].[Table_Batch_Lookup]    Script Date: 12/15/2019 04:34:41 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[Table_Batch_Lookup](
    [BatchId] [int] NULL,
    [BatchStartDate] [datetime] NULL,
    [BatchEndDate] [datetime] NULL
) ON [PRIMARY]
GO
INSERT [dbo].[Table_Batch_Lookup] ([BatchId], [BatchStartDate], [BatchEndDate]) VALUES (45, CAST(0x0000AB2200000000 AS DateTime), CAST(0x0000AB25018B80D4 AS DateTime))
/****** Object:  Table [dbo].[Table_Attendance_Log]    Script Date: 12/15/2019 04:34:41 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[Table_Attendance_Log](
    [TraineeID] [int] NULL,
    [BatchId] [int] NULL,
    [Attendance] [varchar](10) NULL,
    [l_date] [datetime] NULL
) ON [PRIMARY]
GO
SET ANSI_PADDING OFF
GO
INSERT [dbo].[Table_Attendance_Log] ([TraineeID], [BatchId], [Attendance], [l_date]) VALUES (243, 45, N'Present', CAST(0x0000AB220127842A AS DateTime))
INSERT [dbo].[Table_Attendance_Log] ([TraineeID], [BatchId], [Attendance], [l_date]) VALUES (243, 45, N'Present', CAST(0x0000AB2301281C2A AS DateTime))
INSERT [dbo].[Table_Attendance_Log] ([TraineeID], [BatchId], [Attendance], [l_date]) VALUES (243, 45, N'Present', CAST(0x0000AB240128E416 AS DateTime))
INSERT [dbo].[Table_Attendance_Log] ([TraineeID], [BatchId], [Attendance], [l_date]) VALUES (244, 45, N'Present', CAST(0x0000AB24012A05AB AS DateTime))
INSERT [dbo].[Table_Attendance_Log] ([TraineeID], [BatchId], [Attendance], [l_date]) VALUES (246, 45, N'Present', CAST(0x0000AB23012B245A AS DateTime))
INSERT [dbo].[Table_Attendance_Log] ([TraineeID], [BatchId], [Attendance], [l_date]) VALUES (246, 45, N'Present', CAST(0x0000AB24012B245A AS DateTime))
My current output

I want below output if date is less than or equal to today date fill empty vales to Absent(past date) and Future date should be like that no absent in 12/16/2019 is future date no need to fill absent.