data-dwh-dbt-project/macros/is_date_before_12th_of_previous_month.sql

/*
This macro returns a boolean value for dates depending on the current day of the month

Logic:
- If today is the 12th or later of the current month:
  - Returns **False** for all dates within the current month.
  - Returns **True** for dates before the current month.
- If today is before the 12th:
  - Returns **False** for all dates within the current and previous month.
  - Returns **True** for dates before the previous month.

*/
{% macro is_date_before_12th_of_previous_month(date) %}
    (
        case
            -- If today is the 12th or later, only exclude current month
            when extract(day from now()) >= 12
            then
                date_trunc('month', ({{ date }})::date)::date
                < date_trunc('month', now())::date
            -- If today is before the 12th, exclude both current and previous month
            else
                date_trunc('month', ({{ date }})::date)::date
                < date_trunc('month', now() - interval '1 month')::date
        end
    )
{% endmacro %}