module Api
  module V1
    class ReportsController < BaseController
      def monthly
        rows = current_user.entries.group(Arel.sql("DATE_TRUNC('month', date)"), :praktikums_typ, :entry_art)
          .order(Arel.sql("DATE_TRUNC('month', date) DESC"))
          .pluck(Arel.sql("DATE_TRUNC('month', date)"), :praktikums_typ, :entry_art, Arel.sql("SUM(COALESCE(hours, 0) * 60 + COALESCE(minutes, 0))"))
        render json: rows.map { |month, typ, art, minutes| { month: month.to_date, typ:, art:, total_minutes: minutes.to_i } }
      end
    end
  end
end