How to apply if/else logic in where clause?

I have logic that is based on If/Else statement. This should be applied in SQL where clause filter. Here is example on how that should look like:

if (type = 'DEV') { // If type is DEV then status should be Y
   status = 'Y'
}else{ // If not do not apply filter
   1=1
}

I have tried this in SQL:

WHERE id IN (89,56,87)
   AND ( 
           (type = 'TRNG' AND status = 'Y') 
           OR 
           (1=1)
        )

I'm wondering if there is a way to achieve what I have in if/else statement?