Conditional Dynamic SQL In Stored Procedure, Not Returning Any Result

Created a stored procedure which returns Selected table from database.
I pass variables, according to conditions
 
For some reason it is not returning any result for any condition
 
 
Stored Procedure                                                              
 
ALTER PROCEDURE dbo.StoredProcedure
      (
            @condition varchar(20),
            @ID bigint,
            @date1 as datetime,
            @date2 as datetime
      )
     
AS
      /* SET NOCOUNT ON */
      IF @condition LIKE 'all'
            SELECT     CllientEventDetails.*
            FROM         CllientEventDetails
            WHERE     (ClientID = @ID)
     
      IF @condition LIKE 'current_events'
            SELECT     ClientEventDetails.*
            FROM         ClientEventDetails
            WHERE     (ClientID = @ID) AND
                        (EventFrom <= ISNULL(@date1, EventFrom)) AND
                        (EventTill >= ISNULL(@date1, EventTill))
     
      IF @condition LIKE 'past_events'
            SELECT     ClientEventDetails.*
            FROM         ClientEventDetails
            WHERE     (ClientID = @ID) AND
                        (EventTill <= ISNULL(@date1, EventTill))
     
      IF @condition LIKE 'upcoming_events'
            SELECT     ClientEventDetails.*
            FROM         ClientEventDetails
            WHERE (ClientID = @ID) AND
                  (EventFrom >= ISNULL(@date1, EventFrom))
 
      IF @condition LIKE ''
            SELECT     CllientEventDetails.*
            FROM         CllientEventDetails
 
RETURN 
                                                                                         
 
Also I would like to find out if I can put only "where" clause in if condition as my select statements are constants