import java.io.IOException;
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.net.http.HttpResponse.BodyHandlers;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.concurrent.CompletableFuture;

import com.google.gson.Gson;
import com.google.gson.GsonBuilder;

public class App {
    public static void main(String[] args) throws Exception {
        String text = getEmployees().join();
        printNames(text);        
    }
    public static CompletableFuture<String> getEmployees() throws IOException, InterruptedException {
        HttpClient client = HttpClient.newHttpClient();

        HttpRequest request = HttpRequest.newBuilder()
        .uri( URI.create("http://[::1]:3000/employees"))
        .build();
        
        return client.sendAsync(request, BodyHandlers.ofString())
        .thenApply(HttpResponse::body);
    }
    public static void printNames(String text) {
        GsonBuilder builder = new GsonBuilder();
        builder.setPrettyPrinting();
        Gson gson = builder.create();
        
        Employee[] employeeArray = gson.fromJson(text, Employee[].class);
        ArrayList<Employee> list = new ArrayList<>(Arrays.asList(employeeArray));

        for(Employee employee: list) {
            System.out.println(employee.name);
        }
    }
}