#include <iostream.h>
#include <cmath>

float GetAns(char *, float, float);

char GetAn(char *, char, char, char, char);

float Age, TimeIn, TimeOut, DaysInAWeek, TimeOnShift, Rotate, Alert,
Accidents, HoursOfExercise, Sleep, Snack, FruitsVegetables, SugarFat,
Grains, Fluids, DifficultySleeping;

char Gender, Sodium, Sugar, AlertAftSnack, Medicalillnesses,
Gastrointestinal, Cardiovascular, SleepingDisorders, Otherillnesses;

void AskQuestions (void)

{
     Gender=GetAn("What is the shiftworker's gender:\n",'M','m','F','f');
 
     Age=GetAns("How old is the shiftworker?", 10, 99);

     TimeOnShift=GetAns("How many weeks has the shiftworker been on
his/her current shift?", 0, 9999);
    
  cout<<"Answer the following two questions using a twenty-four hour
clock,where 0=12 midnight and 23=11 PM. \n";

     TimeIn=GetAns("What time does the shiftworker clock in?", 0, 23);

     TimeOut=GetAns("What time does the shiftworker clock out?", 0, 23);
          
     DaysInAWeek=GetAns("How many days does the shiftworker work in a
week?", 0, 7);

        Rotate=GetAns("How often, in weeks, is their shift *usually*
rotate?", 0, 999);

     Alert=GetAns("How many hours after the shiftworker has started
his/her shift does he/she feel the least alert?", 0, 24);

     Accidents=GetAns("How many accidents has the shiftworker been
involved in?", 0, 9999);

     Sleep=GetAns("How many hours of sleep does shift worker have in a
day?", 0, 24);

     DifficultySleeping=GetAn("Does the shiftworker ever have difficulty 
sleeping?", 'Y', 'y', 'N', 'n');

     HoursOfExercise=GetAns("How many hours of exercise does the
shiftworker get in a week?", 0, 168); 

     Snack=GetAns("How many snacks does the shiftworker have during
his/her shift?", 0, 999);

     cout<< "In a scale of 0-8, what is the shiftworker's daily intake
of: (0 being no intake and 8 being maximum intake)\n";      

     FruitsVegetables=GetAns("Vegetables and Fruits:", 0, 8);

     SugarFat=GetAns("Sugars and Fats:", 0, 8);

     Grains=GetAns("Grains:", 0, 8);

     Fluids=GetAns("Fluids:", 0,8);


     Sodium=GetAn("Is the shiftworker's snack sodium based?", 'Y',
'y', 'N', 'n');

     Sugar=GetAn("Is the shiftworker's snack sugar based?", 'Y', 'y',
'N','n');

     AlertAftSnack=GetAn("Does the shiftworker feel [M]ore or [L]ess alert
after his/her snack?", 'M', 'm', 'L', 'l');

     Medicalillnesses=GetAn("Does the shiftworker suffer from any medical
illnesses?", 'Y', 'y', 'N', 'n'); 

    if (Medicalillnesses == 'Y' || Medicalillnesses == 'y')
       { 
         Gastrointestinal=GetAn("Does the shiftworker suffer from
gastrointestinal problems?  (ex.  heartburn, indigeston, diaherra, etc.)",
'Y', 'y', 'N', 'n');
         Cardiovascular=GetAn("Does the shiftworker suffer from
cardiovascular disorders?  (ex.  heart problems, asthma, etc.)", 'Y', 'y',
'N', 'n');
          SleepingDisorders=GetAn("Does the shiftworker suffer from any
sleeping disorders?  (ex.  sleep apnea, insomnia, etc.)", 'Y', 'y', 'N',
'n');
         }

 }

void ShowResults(void) {
	float  Alertness, Energy, Health, Adjust;


	Alertness= (Sleep - abs(TimeOut - TimeIn));
       
	Energy = 14; 
	if (Gastrointestinal == 'Y' || Gastrointestinal == 'y')
		Energy = Energy - 4;
	if (Cardiovascular == 'Y' || Cardiovascular == 'y')
		Energy = Energy - 4;
	if (SleepingDisorders == 'Y' || SleepingDisorders == 'y')
		Energy = Energy - 4;
	if (Age >= 18 && Age <= 25)
		Health = 20;
	if (Age >= 26 && Age <= 35)
		Health = 15;
	if (Age >= 36 && Age <= 45)
		Health = 10;
	if (Age >= 46)
		Health = 5;
	if (Rotate == 1 || Rotate == 2)
		Adjust = 40;
	if (Rotate == 3 || Rotate == 4)
		Adjust = 30;
	if (Rotate == 5 || Rotate == 6)
		Adjust = 20;
	if (Rotate > 6)
		Adjust = 10;
	
	
	cout << "The shiftworker's results are the following: ";
	cout << "The shiftworker's alertness is (affected by hours of
sleep and work): " << Alertness << endl;
	cout << "The shiftworker's energy (during shift): " << Energy << endl;
	cout << "The shiftworker's health: " << Health << endl;
	cout << "The shiftworker's adjustment level: " << Adjust << endl;
	cout << "The shiftworker's efficiency: " << Alertness + Energy + Health + Adjust << endl;
}