//add appts to linked list----------------------------------------------------------------------------
void ToDo::addAppt(Appointment* appt)
{
    cout << "\nAdding appointment...\n";

    if(head == NULL)
    {
        cout << "\nHead is null..\n";
        head = new Cell(appt, head);
    }
    else
    {
        follow = NULL;
        for(scan = head; scan != NULL; scan = scan -> next)
        {
            if((appt->mWhen <= scan->appt->mWhen) == 1)
            {
                scan->next = new Cell(appt, scan->next);
                break;
            }
            else if((appt->mWhen == scan->appt->mWhen) && (follow == NULL))
            {
                head = new Cell(appt, head);
                break;
            }
            else if((appt->mWhen <= scan->appt->mWhen) == 2 && (follow != NULL))
            {
                follow->next = new Cell(appt, follow->next);
                break;
            }
            follow = scan;
        }
    }

    ++numCells;
}

//date.hpp--------------------------------------
#include "tools.hpp"

#define DAYS 13
#define MONTHABR 13

class Date {
    friend class ToDo;
    private: //------------------------------------------------------------------------
        time_t intTime;
        struct tm myTime;
        static const int nDays[DAYS];
        static const cstring monthAbr[MONTHABR];

    public: //-------------------------------------------------------------------------
        Date(cstring dateString = NULL);
        ~Date();
        void print();
        void format(cstring, bool*, bool*, int*);
        static void instructions();
        static bool valiDate(int month, int day, int year, int hour, int min);
        bool operator<=(const Date & d) const;
        bool operator==(const Date & d) const;
        bool sameDay(const Date & d) const;
        bool sameTime(const Date & d) const;
        friend ostream &operator<<(ostream &stream, const Date o);  //compiler throws me errors if I declare this as anything but a friend, can't access private data memeber.
};

//date.cpp--------------------------------------------------------------------------
//compare dates-----------------------------------------------------------------------
bool Date::operator<=(const Date & d) const
{
    if(myTime.tm_mon == d.myTime.tm_mon)
    {
        if(myTime.tm_mday >= d.myTime.tm_mday)
            return 1;
    }
    else
        return 2;
}

//are dates.mon equal?-----------------------------------------------------------------
bool Date::operator==(const Date & d) const
{
    if(myTime.tm_mon <= d.myTime.tm_mon)
        return true;
    else
        return false;
}

//are dates.mday equal?-----------------------------------------------------------------
bool Date::sameDay(const Date & d) const
{
    if(myTime.tm_mday == d.myTime.tm_mday)
        return true;
    else
        return false;
}

//is time equal?------------------------------------------------------------------------
bool Date::sameTime(const Date & d) const
{
    if((myTime.tm_hour == d.myTime.tm_hour) && (myTime.tm_min == d.myTime.tm_min))
        return true;
    else
        return false;
}