// include necessary standard library headers and other system headers using angle brackets
#include <iostream>
#include <vector>

// include the local header file for the Greeter class using quotes
#include "hello.hpp"

int main(int argc, char** argv) {
    // entry point of the program

    hello::Greeter greeter; // create an instance of the class
    std::vector<std::string> args(argv, argv + argc);

    // this is just for demonstration purposes; the branches should be separate functions
    if (args.size() > 1) {
        std::string name;

        for (size_t i = 1; i < args.size(); ++i) {
            name += args[i];

            if (i < args.size() - 1) {
                name += ' ';
            }
        }

        greeter.greet(name);
    } else {
        std::string name;
        std::string subname;

        for (size_t i = 1; std::cin >> subname; ++i) {
            if (i > 1) {
                name += ' ';
            }

            name += subname;
        }

        greeter.greet(name);
    }
}