import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.Reader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class ZybezItem {

        private int zybezId;
        private String name;
        private String image;
        private int recentHigh;
        private int recentLow;
        private int average;
        private int highAlch;
        private Offer[] offers;

        public ZybezItem(String name) {
                JSONObject json = null;
                try {
                        json = readJsonFromUrl("http://forums.zybez.net/runescape-2007-prices/api/item/"
                                        + format(name));
                } catch (Exception e) {
                        e.printStackTrace();
                }
                if (json != null && json.has("id")) {
                        try {
                                this.zybezId = json.getInt("id");
                                this.name = json.getString("name");
                                this.image = json.getString("image");
                                this.recentHigh = (int) Double.parseDouble(json
                                                .getString("recent_high"));
                                this.recentLow = (int) Double.parseDouble(json
                                                .getString("recent_low"));
                                this.average = (int) Double.parseDouble(json
                                                .getString("average"));
                                this.highAlch = json.getInt("high_alch");
                                JSONArray jsonOfferArr = json.getJSONArray("offers");
                                this.offers = new Offer[jsonOfferArr.length()];
                                for (int i = 0; i < jsonOfferArr.length(); i++) {
                                        this.offers[i] = new Offer(jsonOfferArr.getJSONObject(i),
                                                        this.getName());
                                }
                        } catch (JSONException e) {
                                e.printStackTrace();
                        }
                }
        }

        public ZybezItem(int id) {
                JSONObject json = null;
                try {
                        json = readJsonFromUrl("http://forums.zybez.net/runescape-2007-prices/api/item/"
                                        + format(getItemName(id)));
                } catch (Exception e) {
                        e.printStackTrace();
                }
                if (json != null && json.has("id")) {
                        try {
                                this.zybezId = json.getInt("id");
                                this.name = json.getString("name");
                                this.image = json.getString("image");
                                this.recentHigh = (int) Double.parseDouble(json
                                                .getString("recent_high"));
                                this.recentLow = (int) Double.parseDouble(json
                                                .getString("recent_low"));
                                this.average = (int) Double.parseDouble(json
                                                .getString("average"));
                                this.highAlch = json.getInt("high_alch");
                                JSONArray jsonOfferArr = json.getJSONArray("offers");
                                this.offers = new Offer[jsonOfferArr.length()];
                                for (int i = 0; i < jsonOfferArr.length(); i++) {
                                        this.offers[i] = new Offer(jsonOfferArr.getJSONObject(i),
                                                        this.getName());
                                }
                        } catch (JSONException e) {
                                e.printStackTrace();
                        }
                }
        }

        /**
         * @return the zybez id associated to the zybezItem (THESE ARE NOT THE SAME
         *         AS RUNESCAPE IDS)
         */
        public int getZybezId() {
                return zybezId;
        }

        /**
         * @return the name of the zybezItem
         */
        public String getName() {
                return name;
        }

        /**
         * @return the URL of an image of the zybezItem
         */
        public String getImage() {
                return image;
        }

        /**
         * @return the recent high price of the zybezItem
         */
        public int getRecentHigh() {
                return recentHigh;
        }

        /**
         * @return the recent low price of the zybezItem
         */
        public int getRecentLow() {
                return recentLow;
        }

        public void setZybezId(int zybezId) {
                this.zybezId = zybezId;
        }

        public void setName(String name) {
                this.name = name;
        }

        public void setImage(String image) {
                this.image = image;
        }

        public void setRecentHigh(int recentHigh) {
                this.recentHigh = recentHigh;
        }

        public void setRecentLow(int recentLow) {
                this.recentLow = recentLow;
        }

        public void setAverage(int average) {
                this.average = average;
        }

        public void setHighAlch(int highAlch) {
                this.highAlch = highAlch;
        }

        public void setOffers(Offer[] offers) {
                this.offers = offers;
        }

        public int getAverage() {
                return average;
        }

        public int getHighAlch() {
                return highAlch;
        }

        /**
         * @return an array of offer objects
         */
        public Offer[] getOffers() {
                return offers;
        }

        private static String readAll(Reader rd) throws IOException {
                StringBuilder sb = new StringBuilder();
                int cp;
                while ((cp = rd.read()) != -1) {
                        sb.append((char) cp);
                }
                return sb.toString();
        }

        public static JSONObject readJsonFromUrl(String url) throws IOException,
                        JSONException {
                HttpURLConnection connection = (HttpURLConnection) new URL(url)
                                .openConnection();
                connection
                                .setRequestProperty(
                                                "User-Agent",
                                                "Mozilla/5.0 (Windows NT 5.1) AppleWebKit/535.11 (KHTML, like Gecko) Chrome/17.0.963.56 Safari/535.11");
                InputStreamReader is = new InputStreamReader(
                                connection.getInputStream());
                try {
                        BufferedReader rd = new BufferedReader(is);
                        String jsonText = readAll(rd);
                        JSONObject json = new JSONObject(jsonText);
                        return json;
                } finally {
                        is.close();
                }
        }

        private static String getItemName(int id) {
                /*
                 * Idea taken from WillB
                 */
                URL url;
                String txt = null;
                try {
                        url = new URL("http://www.runelocus.com/item-details/?item_id="
                                        + id);
                        BufferedReader reader = new BufferedReader(new InputStreamReader(
                                        url.openStream()));
                        StringBuilder sb = new StringBuilder();
                        while (reader.ready()) {
                                sb.append(reader.readLine());
                        }
                        Pattern p = Pattern.compile("<h2>Information about '(.*?)'</h2>");
                        Matcher m = p.matcher(sb.toString());
                        if (m.find()) {
                                txt = m.group(1);
                        }
                } catch (IOException e) {
                        e.printStackTrace();
                }
                return txt;
        }

        private String format(String name) {
                return name.replace(" ", "+").replace("'", "");
        }
}