package com.calebfontenot;

import org.json.*;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;

public class Common {
    public static List<String> parseKey(String fetchURL, String keyToFetch) throws Exception {
                String line = rawFetch(fetchURL);
                JSONObject json = new JSONObject(line);
                //System.out.println(line);
                JSONArray key = json.getJSONArray(keyToFetch);
                List<String> returnList = new ArrayList<String>();
                for (int i = 0; i < key.length() - 1; i++) {
                    String returnString = (String) key.get(i);
                    returnList.add(returnString);
                }
                return returnList;
            }

    public static String rawFetch(String fetchURL) throws Exception {
        //System.out.println("CURLing API...");
        URL url = new URL(fetchURL);
        try (BufferedReader reader = new BufferedReader(new InputStreamReader(url.openStream(), "UTF-8"))) {
            for (String line; (line = reader.readLine()) != null; ) {
                //JSONObject json = new JSONObject(line);
                //System.out.println(line);
                return line;
            }

        } catch (Exception IllegalArgumentException) {
            System.out.println("Illegal Argument!");
            IllegalArgumentException.printStackTrace();
            return null;
        }
        return null;
    }
    public static String regexFetch(String fetchURL) throws Exception{ // Regexes off the start and end square braces returned by certain APIs?
        String raw = rawFetch(fetchURL);
        raw = raw.substring(1, raw.length() - 1);
        return raw;
    }
    public static String regex(String raw) throws Exception{ // Regexes off the start and end square braces returned by certain APIs?
        raw = raw.substring(1, raw.length() - 1);
        return raw;
    }
    public static String parse(String fetchURL, String keyToFetch) throws Exception{
        String raw = regexFetch(fetchURL);
        JSONTokener tokener = new JSONTokener(raw);
        JSONObject object = new JSONObject(tokener);
        return object.getString(keyToFetch);
    }
}