#pragma once
#include "common.h"

class AFX_CLASS_EXPORT T2DateTime {
public:
	T2DateTime();
	T2DateTime(int year, int month, int hours, int minutes, int seconds);
	T2DateTime(T2Archive& archive);
    T2DateTime(const T2DateTime &other)
        : mYear(other.mYear)
        , mMonth(other.mMonth)
        , mRawMinutes(other.mRawMinutes)
        , mSeconds(other.mSeconds)
    {}

	virtual ~T2DateTime();
    virtual void Write(T2Archive& archive);

	int GetTimeZone();
	void AddMinutes(unsigned int m);
	BOOL IsIncDateTime();
	void IncDate();
	unsigned int CalcLapseDays(unsigned int d) const;
	unsigned int CalcLapseYears(unsigned int d) const;
	BOOL WithinHour(int a, int b) const;
	BOOL WithinMinutes(int a, int b) const;
	BOOL IsHoliday(T2TowerDoc* doc);
	void Validate();

    static BOOL IsEqualDate(T2DateTime* a, T2DateTime* b);
    static BOOL IsEqualDateTime(T2DateTime* a, T2DateTime* b);

	unsigned int GetYear() const { return mYear; }
	unsigned int GetQuarter() const { return mMonth / 3 + 1; }
	unsigned int GetSeason() const { return mMonth / 3 + 1; }
	unsigned int GetDay() const { return mMonth % 3 + 1; }
	unsigned int GetMonth() const { return mMonth + 1; }
	unsigned int GetHour() const { return (mRawMinutes % 720) / 60; }
	unsigned int Get24Hour() const { return mRawMinutes / 60; }
	unsigned int GetMinutes() const { return mRawMinutes % 60; }
	unsigned int GetRawMinutes() const { return mRawMinutes; }
	int CalcTotalDays() const { return (mYear - 1) * 12 + mMonth; }
	BOOL IsWeekday(T2TowerDoc* doc) { return !IsHoliday(doc); }
	BOOL IsDay() const {
		return (mRawMinutes >= 360 && mRawMinutes < 1080);
	}
	BOOL IsMidNight() const {
		return mRawMinutes < 360;
	}
	BOOL IsOclock24(unsigned int hour) const {
		return (Get24Hour() == hour) && (GetMinutes() == 0) && (mSeconds == 0);
	}

    unsigned int mYear;
    unsigned int mMonth;
    unsigned int mRawMinutes;
    unsigned int mSeconds;

protected:
    int AdjustMinutes(int m) const;

    friend BOOL operator>=(const T2DateTime &a, const T2DateTime &b);

	unsigned int CalcTotalCount() const {
		return mSeconds + ((mYear * 12 + mMonth) * 1440 + mRawMinutes) * 4;
	}
};

inline BOOL operator>=(const T2DateTime &a, const T2DateTime &b) {
    return a.CalcTotalCount() >= b.CalcTotalCount();
}