#include <exception>
#include <string>
#include <vector>

#include "Person.h"

#include "PersonException.h"
#include <iostream>

using std::cin;
using std::cout;
using std::string;
using std::exception;

int main() {
    std::vector<Person *> people;
    Person *personPtr;

    string namePrompt = "Enter name: ";
    string name;
    string agePrompt = "Enter age: ";
    int age;
    string salaryPrompt = "Enter salary: ";
    int salary;

    cout << namePrompt;
    cin >> name;

    while (name != "q") {
        //	Set 'personPtr' to nullptr at the beginning
        //	of the loop to tell us whether a Person
        //	object has been created during this pass
        //	through the loop
        personPtr = nullptr;

        try {
            cout << agePrompt;
            cin >> age;

            if (!cin) {
                cin.clear();
                string dummy;
                cin >> dummy;
                throw PersonException("invalid age");
            }

            personPtr = new Person(name, age);

            cout << salaryPrompt;
            cin >> salary;
            if (!cin) {
                cin.clear();
                string dummy;
                cin >> dummy;
                throw PersonException("invalid salary");
            }

            personPtr->setSalary(salary);

            //	We only get here if no exception has been
            //	raised, that is, both 'age' and 'salary'
            //	are valid and non-negative.
            people.push_back(personPtr);
        }

        catch (exception &e) {
            cout << "PersonException thrown: " << e.what() << '\n';

            //	If an exception was raised, then the current object
            //	is invalid and should be deleted. Recall that:
            //	1. delete on a null pointer is harmless (does nothing)
            //	2. delete on a non-null pointer causes that pointer
            //	   to be set to an undefined value
            delete personPtr;
            //	Since 'personPtr' may now be undefined, set it to null.
            personPtr = nullptr;
        }

        cout << "There are " << Person::GetCount() << " Person(s), " << people.size() << " in vector\n";

        cout << namePrompt;
        cin >> name;
    }

    // delete all the person(s) in the vector
    for (std::vector<Person *>::iterator iter = people.begin(); iter != people.end(); ++iter) {
        delete *iter;
    }

    cout << "There are " << Person::GetCount() << " Person(s) left dangling\n";

    return 0;
}