import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import com.google.gson.*;

public class Main {

    class StockAPI {
        public String getStockInfo(String tickerSymbl) throws IOException {
            String myAPIurl = "https://www.alphavantage.co/query?function=GLOBAL_QUOTE&symbol=";
            String myApiToken = "&apikey=UELU6AL4I27DSMI4";

            String stockURL = myAPIurl + tickerSymbl + myApiToken;
            URL url = new URL(stockURL);
            HttpURLConnection conn = (HttpURLConnection) url.openConnection();
            conn.setRequestMethod("GET");
            BufferedReader rd = new BufferedReader(new InputStreamReader(conn.getInputStream()));

            String response = new String();
            for (String line; (line = rd.readLine()) != null; response += line) ;

            String output = parseJsonFunction(response);
            return output;
        }

        //Function that will parse your JSON
        public String parseJsonFunction(String json) {
            JsonObject object = new JsonParser().parse(json).getAsJsonObject();

            JsonObject main = object.getAsJsonObject("Global Quote");
            double open = main.get("02. open").getAsDouble();
            double high = main.get("03. high").getAsDouble();
            double low = main.get("04. low").getAsDouble();
            String day = main.get("07. latest trading day").getAsString();
            String ticker = main.get("01. symbol").getAsString();

            String output = "On the day of " + day + " " + ticker +
                    " opened with a stock price of $" + open + " USD. " + ticker +
                    " reached a high of $" + high + " USD, and a low of $" + low + " USD.";
            return output;
        }
    }
}