intprog_hackery/functional_functions.rb

def func_find_all(container_obj, attribute, filter_by)
  filters = filter_by.map do |x|
    comparator = x.comparator == ".equals" ? ".equals(#{x.value})" : "#{x.comparator} #{x.value}"
    "s.get#{attribute}()#{comparator}"
  end
  # TODO: Consider also having an "or" here
  "return #{container_obj}.stream().filter(s -> #{filters.join "&&"}).collect(Collectors.toList());"

end

def find_whatever_of_something(container_obj, attribute, filter_by, aggregate_func)
  filters = filter_by.map do |x|
    comparator = x.comparator == ".equals" ? ".equals(#{x.value})" : "#{x.comparator} #{x.value}"
    "s.get#{attribute}()#{comparator}"
  end
  # TODO: Consider also having an "or" here
  "return #{container_obj}.stream().filter(s -> #{filters.join "&&"}).#{aggregate_func}();"
end

def find_whatever_of_variable(container_obj, attribute, filter_by, aggregate_func, variable)
  filters = filter_by.map do |x|
    comparator = x.comparator == ".equals" ? ".equals(#{x.value})" : "#{x.comparator} #{x.value}"
    "s.get#{attribute}()#{comparator}"
  end
  # TODO: Consider also having an "or" here
  "return #{container_obj}.stream().filter(s -> #{filters.join "&&"}).mapToInt(s -> s.get#{variable}()).#{aggregate_func}();"
end

def find_one(container_obj, attribute, filter_by)
  filters = filter_by.map do |x|
    comparator = x.comparator == ".equals" ? ".equals(#{x.value})" : "#{x.comparator} #{x.value}"
    "s.get#{attribute}()#{comparator}"
  end
  # TODO: Consider also having an "or" here
  "return #{container_obj}.stream().filter(s -> #{filters.join "&&"}).findAny().orElse(null);"
end

def find_best_value(container_obj, attribute, filter_by, min_or_max, based_on)
  filters = filter_by.map do |x|
    comparator = x.comparator == ".equals" ? ".equals(#{x.value})" : "#{x.comparator} #{x.value}"
    "s.get#{attribute}()#{comparator}"
  end
  # TODO: Consider also having an "or" here
  "return #{container_obj}.stream().filter(s -> #{filters.join "&&"}).mapToInt(s -> s.get#{based_on}()).#{min_or_max};"
end

def find_best_object(container_obj, attribute, filter_by, min_or_max, based_on)
  filters = filter_by.map do |x|
    comparator = x.comparator == ".equals" ? ".equals(#{x.value})" : "#{x.comparator} #{x.value}"
    "s.get#{attribute}()#{comparator}"
  end
  # TODO: Consider also having an "or" here
  "return #{container_obj}.stream().filter(s -> #{filters.join "&&"}).#{min_or_max}(Comparator.comparing(#{based_on.type}.get#{based_on.variable}()));"
end