contact-manager/ContactManager.cpp

#include "ContactManager.h"
#include "Contact.h"

ContactManager::ContactManager() {}

void ContactManager::addContact(const std::string& name, const std::string& phone, const std::string& email) {
    contacts.push_back(Contact(name, phone, email));
}

void ContactManager::removeContact(const std::string& name) {
    contacts.erase(std::remove_if(contacts.begin(), contacts.end(), [&name](const Contact& contact) {
        return contact.name == name;
    }), contacts.end());
}

void ContactManager::displayContacts() {
    for (const auto& contact : contacts) {
        std::cout << contact.name << ", " << contact.phone << ", " << contact.email << std::endl;
    }
}

void ContactManager::saveToFile(const std::string& filename) {
    std::ofstream file(filename);
    if (file.is_open()) {
        for (const auto& contact : contacts) {
            file << contact.name << ", " << contact.phone << ", " << contact.email << std::endl;
        }
        file.close();
    } else {
        std::cerr << "Unable to open file." << std::endl;
    }
}

void ContactManager::loadFromFile(const std::string& filename) {
    contacts.clear();
    std::ifstream file(filename);
    if (file.is_open()) {
        std::string line;
        while (std::getline(file, line)) {
            size_t pos = line.find(", ");
            std::string name = line.substr(0, pos);
            line.erase(0, pos + 2);

            pos = line.find(", ");
            std::string phone = line.substr(0, pos);
            std::string email = line.substr(pos + 2);

            addContact(name, phone, email);
        }
        file.close();
    } else {
        std::cerr << "Unable to open file." << std::endl;
    }
}