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#include <vector>
#include <iostream>
#include <iomanip>
#include <string>
#include <fstream>
using namespace std;
class shoppingItem {
int quantity;
double cost;
string name;
public:
//constructors
shoppingItem();
shoppingItem(int, double, const string&);
//"getter" functions
int getQuantity() const;
double getCost() const;
string getName() const;
//"compound getter"
double getTotalCost() const;
//functions
double maxMinTotal(const vector<shoppingItem>&, shoppingItem&, shoppingItem&);
void sortV(vector<shoppingItem>&);
};
int main(int argc, char** argv) {
vector<shoppingItem> shoppingCart;
shoppingItem SI, SI_min, SI_max;
int temp_int;
double temp_dbl, cart_total;
string l_name, f_name, temp_str;
ifstream fin;
ofstream fout;
if(argc != 3){
cout << "Requires two command line arguments" << endl;
return -1;
}
fin.open("case6_file.txt");
if(fin.fail()){
cout << "Failed to open file" << endl;
return -1;
}
fin.open(argv[1]);
fout.open(argv[2]);
if(fin.fail() || fout.fail()){
cout << "Failed to open a file" << endl;
return -1;
}
shoppingCart.clear();
while(fin >> temp_int){
if(temp_int != -1){
fin >> temp_dbl >> temp_str;
SI = shoppingItem(temp_int, temp_dbl, temp_str);
shoppingCart.push_back(SI);
} else {
fin >> f_name >> l_name;
f_name[0] = toupper(f_name[0]);
l_name[0] = toupper(l_name[0]);
// output name, quantity, cost, and total cost for each item in a shopper's cart
for(int i = 0; i < shoppingCart.size(); i++){
fout << setw(15) << left << fixed << shoppingCart[i].getName() << " "
<< right << setw(3) << shoppingCart[i].getQuantity() << " "
<< right << setw(6) << setprecision(2) << shoppingCart[i].getCost() << " "
<< right << setw(7) << setprecision(2) << shoppingCart[i].getTotalCost() << " "
<< endl;
}
// output cheapest/most expensive items, total cost of cart, and sort the cart
//HERE IT IS ~~~~~~ sortV and maxMinTotal are giving me the error
sortV(shoppingCart);
cart_total = maxMinTotal(shoppingCart, SI_min, SI_max);
fout << "cheapest item = " << SI_min.getName() << endl <<
"most expensive item = " << SI_max.getName() << endl <<
"total cost = " << setprecision(2) << cart_total << endl <<
"shopper = " << f_name << " " << l_name << endl;
shoppingCart.clear();
}
}
fin.close();
fout.close();
return 0;
}
// default constructor
shoppingItem::shoppingItem(){
}
// initialization constructor
shoppingItem::shoppingItem(int q, double c, const string& n){
quantity = q;
cost = c;
name = n;
}
//getter function for quantity
int shoppingItem::getQuantity() const{
return quantity;
}
//getter function for cost
double shoppingItem::getCost() const{
return cost;
}
//getter function for name
string shoppingItem::getName() const{
return name;
}
//"compound getter" function that returns the total amount spent on an item type
double shoppingItem::getTotalCost() const{
return cost * quantity;
}
// function returns the total cost of a shopper's cart and gives values to cheapst/most expensive items
double shoppingItem::maxMinTotal(const vector<shoppingItem>& v, shoppingItem& n, shoppingItem& x){
int i, max = -1, min = 2000, min_pos, max_pos;
double total = 0.0, temp_dbl;
for(i = 0; i < v.size(); i++){
temp_dbl = v[i].getCost();
total += v[i].getTotalCost();
if(temp_dbl > max){
max = temp_dbl;
max_pos = i;
}
else if(temp_dbl < min){
min = temp_dbl;
min_pos = i;
}
}
n = v[min_pos];
x = v[max_pos];
return total;
}
// function sorts a shopping cart in order of least-greatest cost per item
void shoppingItem::sortV(vector<shoppingItem> & v){
bool sorted = false;
int i;
shoppingItem temp;
do{
sorted = true;
for(i = 1; i < v.size(); i++){
if(v[i].getCost() < v[i-1].getCost()){
sorted = false;
v[i] = temp;
v[i] = v[i-1];
v[i-1] = temp;
}
}
}while(sorted == false);
}
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