/*
This macro caps a given value between a specified bottom and top limit,
returning `NULL` if the input value is `NULL`.

It uses the `LEAST` and `GREATEST` SQL functions to enforce the caps while 
preserving the `NULL` values in the input.

Parameters:
- `value`: The value to be capped.
- `cap_bottom`: The minimum limit for the value.
- `cap_top`: The maximum limit for the value.

*/
{% macro return_capped_value(value, cap_bottom, cap_top) %}
    CASE
        WHEN {{ value }} IS NULL THEN NULL
        ELSE LEAST({{ cap_top }}, GREATEST({{ cap_bottom }}, {{ value }}))
    END
{% endmacro %}