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#include <iostream>
#include <string>
#include <vector>
#include <sstream>
#include <fstream>
#include <algorithm>
using namespace std;
struct Person
{
string firstName;
string lastName;
int age;
};
void getNames(vector <Person> &people)
{
Person aPerson;
while (aPerson.firstName != "quit")
{
cout << "Enter first name, last name, and age: ";
cin >> aPerson.firstName;
if(aPerson.firstName=="quit") break;
cin >> aPerson.lastName >> aPerson.age;
people.push_back(aPerson);
}
}
void display(const vector <Person> &people)
{
for (int i = 0; i < people.size(); i++)
{
cout << "Name: " << people[i].lastName << ", " << people[i].firstName << ". Age: " << people[i].age << endl;
}
}
void open(vector <Person> &people)
{
ifstream fin("names.txt");
Person aPerson;
string tmp;
stringstream ss;
while(!fin.eof())
{
getline(fin, aPerson.lastName,';');
getline(fin, aPerson.firstName,';');
getline(fin, tmp);
ss << tmp;
ss >> aPerson.age;
people.push_back(aPerson);
}
}
void save(ofstream &fout, vector <Person> people)
{
fout.open("names.txt");
for(int i=0; i < people.size(); i++)
{
fout << people[i].lastName << ';';
fout << people[i].firstName << ';';
fout << people[i].age;
if(i < people.size() -1)
fout << endl;
}
}
void remove(ofstream &fout, vector <Person> &people)
{
int loc=people.size();
string remove;
cout << "Enter the last name of who you want to remove: ";
cin >> remove;
for (int i=0; i < people.size(); i++)
{
if (people.at(i).lastName == remove)
{
loc = i;
}
}
if(loc!=people.size()){
for (int j = loc; j < people.size()-1; j++)
{
swap(people[j], people[j+1]);
}
people.pop_back();
//people.erase(people.begin(), people.end()); (erases the entire file if used instead)
cout << "Entry Removed." << endl;
}
else cout << "Name not found." << endl;
fout.open("names.txt");
for(int i=0; i < people.size(); i++)
{
fout << people[i].lastName << ';';
fout << people[i].firstName << ';';
fout << people[i].age;
if(i < people.size() -1)
fout << endl;
}
cout << endl;
}
void sortNames(vector <Person> &people)
{
sort(people.begin(), people.end());
}
int main()
{
ofstream fout;
vector <Person> people;
cout << "Welcome to the Names Catalogue. Please start by opening the file." << endl;
cout << endl;
int sel;
while (true)
{
cout << "--------------------------" << endl;
cout << "What would you like to do?" << endl;
cout << "--------------------------" << endl;
cout << "Enter 1 add entries." << endl;
cout << "Enter 2 to display entries." << endl;
cout << "Enter 3 to save entries." << endl;
cout << "Enter 4 to open file." << endl;
cout << "Enter 5 to remove an entry." << endl;
cout << "Enter 6 to quit." << endl;
cout << "--------------------------" << endl;
cout << "Enter selection: ";
cin >> sel;
cout << "--------------------------" << endl;
switch (sel)
{
case 1: getNames(people); break;
case 2: display(people); break;
case 3: save(fout, people); break;
case 4: open(people); break;
case 5: remove(fout, people); break;
case 6: sortNames(people); break;
case 7: cout << "Goodbye."; break;
default: cout << "Error: Incorrect input. Please try again." << endl; break;
}
if (sel == 7) break;
}
fout.close();
}
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