SCMH.java

package de.sweetcode.scmh;

import com.google.gson.Gson;
import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import okhttp3.*;

import java.awt.*;
import java.io.IOException;
import java.sql.Timestamp;
import java.time.LocalDateTime;
import java.util.TimeZone;
import java.util.concurrent.TimeUnit;

public class SCMH {


    private final static String SEARCH_QUERY = "mercury";
    private final static OkHttpClient client = new OkHttpClient.Builder().build();
    private final static Gson gson = new Gson();

    private static String oldLocation = null;

    public static void main(String[] args) throws InterruptedException {
        while (true) {
            fetchData();
            Thread.sleep(TimeUnit.MINUTES.toMillis(1));
        }
    }

    private static void fetchData() {

        Request postRequest = new Request.Builder()
                    .url("https://robertsspaceindustries.com/api/starmap/bootup")
                    .post(RequestBody.create(MediaType.get("application/json"), ""))
                .build();

        try {
            Response postResponse = client.newCall(postRequest).execute();

            JsonObject root = gson.fromJson(postResponse.body().string(), JsonObject.class);
            JsonArray systems = root.getAsJsonObject("data").getAsJsonObject("systems").getAsJsonArray("resultset");

            final boolean[] breakLoop = {false};
            for (JsonElement system : systems) {

                if (breakLoop[0]) break;

                final String code = system.getAsJsonObject().get("code").getAsString();

                Request systemRequest = new Request.Builder()
                        .url(String.format("https://robertsspaceindustries.com/api/starmap/star-systems/%s", code))
                        .post(RequestBody.create(MediaType.get("application/json"), ""))
                        .build();

                Response searchResponse = client.newCall(systemRequest).execute();

                JsonObject systemResponse = gson.fromJson(searchResponse.body().string(), JsonObject.class);
                JsonObject systemData = systemResponse.getAsJsonObject("data").getAsJsonArray("resultset").get(0).getAsJsonObject();
                systemData.getAsJsonArray("celestial_objects").forEach(object -> {

                    JsonObject celestial = object.getAsJsonObject();

                    if (
                        (!celestial.get("type").isJsonNull() && celestial.get("type").getAsString().equals("MANMADE")) &&
                        (!celestial.get("code").isJsonNull() && celestial.get("code").getAsString().toLowerCase().contains(SEARCH_QUERY))
                    ) {
                        final String location = String.format("%s >> Distance: %f Latitude: %f Longitude: %f",
                                systemData.get("name").getAsString(),
                                Double.parseDouble(celestial.get("distance").toString().replaceAll("\"", "")),
                                Double.parseDouble(celestial.get("latitude").toString().replaceAll("\"", "")),
                                Double.parseDouble(celestial.get("longitude").toString().replaceAll("\"", ""))
                        );

                        if(!location.equals(oldLocation)) {
                            System.out.println(String.format("%s (UTC) - %s", Timestamp.valueOf(LocalDateTime.now()).toLocalDateTime().minusHours(2).toString(), location));
                            try {
                                oldLocation = location;
                                displayTray(location);
                            } catch (AWTException e) {
                                e.printStackTrace();
                            }
                        }
                        breakLoop[0] = true;
                    }
                });

            }

        } catch (IOException e) {
            e.printStackTrace();
        }

    }

    public static void displayTray(String location) throws AWTException {
        SystemTray tray = SystemTray.getSystemTray();

        Image image = Toolkit.getDefaultToolkit().createImage("icon.png");

        TrayIcon trayIcon = new TrayIcon(image, "A");
        trayIcon.setImageAutoSize(true);
        //Set tooltip text for the tray icon
        trayIcon.setToolTip("B");
        tray.add(trayIcon);

        trayIcon.displayMessage("NEW LOCATION", location, TrayIcon.MessageType.ERROR);
    }

}