diff options
Diffstat (limited to 'src/openvic/Date.cpp')
-rw-r--r-- | src/openvic/Date.cpp | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/src/openvic/Date.cpp b/src/openvic/Date.cpp new file mode 100644 index 0000000..003a455 --- /dev/null +++ b/src/openvic/Date.cpp @@ -0,0 +1,161 @@ +#include "Date.hpp" + +#include <cctype> +#include <algorithm> + +#include "Logger.hpp" + +using namespace OpenVic; + +Timespan::Timespan(day_t value) : days{value} {} + +bool Timespan::operator<(Timespan other) const { return days < other.days; }; +bool Timespan::operator>(Timespan other) const { return days > other.days; }; +bool Timespan::operator<=(Timespan other) const { return days <= other.days; }; +bool Timespan::operator>=(Timespan other) const { return days >= other.days; }; +bool Timespan::operator==(Timespan other) const { return days == other.days; }; +bool Timespan::operator!=(Timespan other) const { return days != other.days; }; + +Timespan Timespan::operator+(Timespan other) const { return days + other.days; } + +Timespan Timespan::operator-(Timespan other) const { return days - other.days; } + +Timespan Timespan::operator*(day_t factor) const { return days * factor; } + +Timespan Timespan::operator/(day_t factor) const { return days / factor; } + +Timespan& Timespan::operator+=(Timespan other) { + days += other.days; + return *this; +} + +Timespan& Timespan::operator-=(Timespan other) { + days -= other.days; + return *this; +} + +Timespan& Timespan::operator++() { + days++; + return *this; +} + +Timespan Timespan::operator++(int) { + Timespan old = *this; + ++(*this); + return old; +} + +Timespan::operator day_t() const { + return days; +} + +Timespan::operator double() const { + return days; +} + +Timespan::operator std::string() const { + return std::to_string(days); +} + +std::ostream& operator<<(std::ostream& out, Timespan timespan) { + return out << static_cast<std::string>(timespan); +} + +Timespan Date::_dateToTimespan(year_t year, month_t month, day_t day) { + month = std::clamp<month_t>(month, 1, MONTHS_IN_YEAR); + day = std::clamp<day_t>(day, 1, DAYS_IN_MONTH[month - 1]); + return year * DAYS_IN_YEAR + DAYS_UP_TO_MONTH[month - 1] + day - 1; +} + +Date::Date(Timespan total_days) : timespan{ total_days } { + if (timespan < 0) { + Logger::error("Invalid timespan for date: ", timespan, " (cannot be negative)"); + timespan = 0; + } +} + +Date::Date(year_t year, month_t month, day_t day) : timespan{ _dateToTimespan(year, month, day) } {} + +Date::year_t Date::getYear() const { + return static_cast<Timespan::day_t>(timespan) / DAYS_IN_YEAR; +} + +Date::month_t Date::getMonth() const { + return ((static_cast<Timespan::day_t>(timespan) % DAYS_IN_YEAR) / 32) + 1; +} + +Date::day_t Date::getDay() const { + const Timespan::day_t days_in_year = static_cast<Timespan::day_t>(timespan) % DAYS_IN_YEAR; + return days_in_year - DAYS_UP_TO_MONTH[days_in_year / 32] + 1; +} + + +bool Date::operator<(Date other) const { return timespan < other.timespan; }; +bool Date::operator>(Date other) const { return timespan > other.timespan; }; +bool Date::operator<=(Date other) const { return timespan <= other.timespan; }; +bool Date::operator>=(Date other) const { return timespan >= other.timespan; }; +bool Date::operator==(Date other) const { return timespan == other.timespan; }; +bool Date::operator!=(Date other) const { return timespan != other.timespan; }; + +Date Date::operator+(Timespan other) const { return timespan + other; } + +Timespan Date::operator-(Date other) const { return timespan - other.timespan; } + +Date& Date::operator+=(Timespan other) { + timespan += other; + return *this; +} + +Date& Date::operator-=(Timespan other) { + timespan -= other; + return *this; +} + +Date& Date::operator++() { + timespan++; + return *this; +} + +Date Date::operator++(int) { + Date old = *this; + ++(*this); + return old; +} + +Date::operator std::string() const { + std::stringstream ss; + ss << *this; + return ss.str(); +} + +std::ostream& operator<<(std::ostream& out, Date date) { + return out << (int) date.getYear() << '.' << (int) date.getMonth() << '.' << (int) date.getDay(); +} + +// Parsed from string of the form YYYY.MM.DD +Date Date::from_string(std::string const& date) { + year_t year = 0; + month_t month = 1; + day_t day = 1; + + size_t first_pos = 0; + while (first_pos < date.length() && std::isdigit(date[first_pos++])); + year = atoi(date.substr(0, first_pos).c_str()); + if (first_pos < date.length()) { + if (date[first_pos] == '.') { + size_t second_pos = first_pos + 1; + while (second_pos < date.length() && std::isdigit(date[second_pos++])); + month = atoi(date.substr(first_pos, second_pos - first_pos).c_str()); + if (second_pos < date.length()) { + if (date[second_pos] == '.') { + size_t third_pos = second_pos + 1; + while (third_pos < date.length() && std::isdigit(date[third_pos++])); + day = atoi(date.substr(second_pos, third_pos - second_pos).c_str()); + if (third_pos < date.length()) + Logger::error("Unexpected string \"", date.substr(third_pos), "\" at the end of date ", date); + } else Logger::error("Unexpected character \"", date[second_pos], "\" in date ", date); + } + } else Logger::error("Unexpected character \"", date[first_pos], "\" in date ", date); + } + return _dateToTimespan(year, month, day); +}; |