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package rishi.betacos;

import java.io.*;
import java.net.*;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;

/**
 *
 * @author Rishi Shah
 */
public class BetacosConnection {

    private URL url;
    private OutputStream out;

    public BetacosConnection(URL url, OutputStream out) {
        this.url = url;
        this.out = out;
    }

    public void post(Map<String, String> map) throws IOException {
        HttpURLConnection connection = (HttpURLConnection)url.openConnection();
        connection.setDoOutput(true);

        OutputStreamWriter os = new OutputStreamWriter(connection.getOutputStream());

        Map<String, String> data = clean(map);
        Iterator<String> keys = data.keySet().iterator();
        StringBuilder query = new StringBuilder();

        while (keys.hasNext()) {
            String key = keys.next();
            query.append(key);
            query.append("=");
            query.append(data.get(key));
            query.append("&");
        }
        query.deleteCharAt(query.length()-1);

        os.write(query.toString());
        os.close();

        BufferedReader in = new BufferedReader(
                                new InputStreamReader(
                                connection.getInputStream()));
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(out));

        String decodedString = null;

        while ((decodedString = in.readLine()) != null) {
            bw.write(decodedString);
            bw.flush();
        }

        in.close();
    }

    private Map<String, String> clean(Map<String, String> data) throws UnsupportedEncodingException {
        Iterator<String> keys = data.keySet().iterator();
        Map<String, String> map = new HashMap<String, String>();

        while (keys.hasNext()) {
            String key = keys.next();
            String value = URLEncoder.encode(data.get(key), "UTF-8");
            map.put(key, value);
        }

        return map;
    }

}