exercism-solutions/cpp/meetup/meetup.cpp

#include "meetup.h"


namespace meetup {


scheduler::scheduler(month_t month, year_t year)
  : year_(year)
  , month_(month)
{}


date_t scheduler::monteenth() const
{
    return teenth_day(weekdays::Monday);
}

date_t scheduler::tuesteenth() const
{
    return teenth_day(weekdays::Tuesday);
}

date_t scheduler::wednesteenth() const
{
    return teenth_day(weekdays::Wednesday);
}

date_t scheduler::thursteenth() const
{
    return teenth_day(weekdays::Thursday);
}

date_t scheduler::friteenth() const
{
    return teenth_day(weekdays::Friday);
}

date_t scheduler::saturteenth() const
{
    return teenth_day(weekdays::Saturday);
}

date_t scheduler::sunteenth() const
{
    return teenth_day(weekdays::Sunday);
}

date_t scheduler::first_monday() const
{
    return first_weekday(weekdays::Monday);
}

date_t scheduler::first_tuesday() const
{
    return first_weekday(weekdays::Tuesday);
}

date_t scheduler::first_wednesday() const
{
    return first_weekday(weekdays::Wednesday);
}

date_t scheduler::first_thursday() const
{
    return first_weekday(weekdays::Thursday);
}

date_t scheduler::first_friday() const
{
    return first_weekday(weekdays::Friday);
}

date_t scheduler::first_saturday() const
{
    return first_weekday(weekdays::Saturday);
}

date_t scheduler::first_sunday() const
{
    return first_weekday(weekdays::Sunday);
}

date_t scheduler::second_monday() const
{
    return second_weekday(weekdays::Monday);
}

date_t scheduler::second_tuesday() const
{
    return second_weekday(weekdays::Tuesday);
}

date_t scheduler::second_wednesday() const
{
    return second_weekday(weekdays::Wednesday);
}

date_t scheduler::second_thursday() const
{
    return second_weekday(weekdays::Thursday);
}

date_t scheduler::second_friday() const
{
    return second_weekday(weekdays::Friday);
}

date_t scheduler::second_saturday() const
{
    return second_weekday(weekdays::Saturday);
}

date_t scheduler::second_sunday() const
{
    return second_weekday(weekdays::Sunday);
}

date_t scheduler::third_monday() const
{
    return third_weekday(weekdays::Monday);
}

date_t scheduler::third_tuesday() const
{
    return third_weekday(weekdays::Tuesday);
}

date_t scheduler::third_wednesday() const
{
    return third_weekday(weekdays::Wednesday);
}

date_t scheduler::third_thursday() const
{
    return third_weekday(weekdays::Thursday);
}

date_t scheduler::third_friday() const
{
    return third_weekday(weekdays::Friday);
}

date_t scheduler::third_saturday() const
{
    return third_weekday(weekdays::Saturday);
}

date_t scheduler::third_sunday() const
{
    return third_weekday(weekdays::Sunday);
}

date_t scheduler::fourth_monday() const
{
    return fourth_weekday(weekdays::Monday);
}

date_t scheduler::fourth_tuesday() const
{
    return fourth_weekday(weekdays::Tuesday);
}

date_t scheduler::fourth_wednesday() const
{
    return fourth_weekday(weekdays::Wednesday);
}

date_t scheduler::fourth_thursday() const
{
    return fourth_weekday(weekdays::Thursday);
}

date_t scheduler::fourth_friday() const
{
    return fourth_weekday(weekdays::Friday);
}

date_t scheduler::fourth_saturday() const
{
    return fourth_weekday(weekdays::Saturday);
}

date_t scheduler::fourth_sunday() const
{
    return fourth_weekday(weekdays::Sunday);
}

date_t scheduler::last_monday() const
{
    return last_weekday(weekdays::Monday);
}

date_t scheduler::last_tuesday() const
{
    return last_weekday(weekdays::Tuesday);
}

date_t scheduler::last_wednesday() const
{
    return last_weekday(weekdays::Wednesday);
}

date_t scheduler::last_thursday() const
{
    return last_weekday(weekdays::Thursday);
}

date_t scheduler::last_friday() const
{
    return last_weekday(weekdays::Friday);
}

date_t scheduler::last_saturday() const
{
    return last_weekday(weekdays::Saturday);
}

date_t scheduler::last_sunday() const
{
    return last_weekday(weekdays::Sunday);
}

namespace {

typedef boost::gregorian::first_day_of_the_week_in_month  first_dow;
typedef boost::gregorian::first_day_of_the_week_after     first_dow_after;
typedef boost::gregorian::last_day_of_the_week_in_month   last_dow;
}

date_t scheduler::teenth_day(weekdays day) const
{
    return first_dow_after(day).get_date({year_, month_, 12});
}

date_t scheduler::nth_weekday(nth_dow::week_num n, weekdays day) const
{
    return nth_dow(n, day, month_).get_date(year_);
}

date_t scheduler::first_weekday(weekdays day) const
{
    return first_dow(day, month_).get_date(year_);
}

date_t scheduler::last_weekday(weekdays day) const
{
    return last_dow(day, month_).get_date(year_);
}

date_t scheduler::second_weekday(weekdays day) const
{
    return nth_weekday(nth_dow::second, day);
}

date_t scheduler::third_weekday(weekdays day) const
{
    return nth_weekday(nth_dow::third, day);
}

date_t scheduler::fourth_weekday(weekdays day) const
{
    return nth_weekday(nth_dow::fourth, day);
}


}