module: CommonTasks
    function: add_numbers
        body:
            return num1 + num2
        end body
        parameter:
           declare num1: int
           declare num2: int
        return_type: int

    end function
end module

module: MathUtils
    function: square_number
        parameter:
            declare number: int
        return_type: int
        body:
            return number * number
        end body
    end function
end module

module: StringUtils
    function: concatenate
        parameter:
            declare first_str: string
            declare second_str: string
        return_type: string
        body:
            return first_str + second_str
        end body
    end function
end module

module: MainModule
    import: CommonTasks, MathUtils, StringUtils, BuiltinUtils

    function: test
        parameter:
            declare first_str: string
            declare second_str: string
        return_type: string
        body:
            return first_str + second_str
        end body
    end function

   function: main
        parameter:
            declare args: string
        return_type: void
        body:
            declare input_number: int = BuiltinUtils.to_int(args)

            if input_number <= 0 then
                input_number = 5
            end if

            loop:
                initializer:
                    declare i: int = 0
                condition:
                    i < input_number
                update:
                    i = i + 1
                body:
                    if i % 2 == 0 then
                        BuiltinUtils.print("i is even: " + BuiltinUtils.to_string(i))
                    else
                        BuiltinUtils.print("i is odd: " + BuiltinUtils.to_string(i))

                        loop:
                            initializer:
                                declare j: int = 0
                            condition:
                                j < i
                            update:
                                j = j + 1
                            body:
                                if j == 1 then
                                    BuiltinUtils.print("  first inner")
                                else
                                    if j % 2 == 0 then
                                        BuiltinUtils.print("j even")
                                    else
                                        BuiltinUtils.print("j odd")
                                    end if
                                end if
                            end body
                        end loop
                    end if

                    declare sum: int = CommonTasks.add_numbers(i, 10)
                    declare squared: int = MathUtils.square_number(sum)
                    BuiltinUtils.print("  i+10 squared = " + BuiltinUtils.to_string(squared))
                end body
            end loop

            declare final_message: string = StringUtils.concatenate("Finished with input: ", BuiltinUtils.to_string(input_number))
            BuiltinUtils.print(final_message)
        end body
    end function

end module