GE

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.URL;


public class GE {
	/**
	 * Find item price on the grand exchange
	 * @param itemName The name of the item
	 * @return Price of the item
	 */
	public static int getGuidePrice(final String itemName) {
		return Integer.parseInt(lookup(itemName)[1]);
	}

	/**
	 * Find item price on the grand exchange
	 * @param itemID The id of the item.
	 * @return Price of the item
	 */
	public static int getGuidePrice(final int itemID) {
		return Integer.parseInt(lookup(itemID)[1]);
	}

	/**
	 * Get the ID of itemname (used for injecton bots)
	 * @param itemName: name of the item
	 * @return : item id as an integer
	 */
	public int getID(final String itemName) {
		return Integer.parseInt(lookup(itemName)[2]);
	}

	/**
	 * Gets the itemname given the itemID
	 * @param itemID : id of the item
	 * @return name of the item
	 */
	public int getName(final int itemID) {
		return Integer.parseInt(lookup(itemID)[0]);
	}

	/**
	 * Looks up grand exchange information and returns a string array with the following contents
	 * String[0] = item name
	 * String[1] = item price
	 * String[2] = item id
	 * @param itemName: name of the item to grab information about on the grandexchange website
	 * @return : a string array of grand exchange information on the item id provided
	 */
	public static String[] lookup(final String itemName) {
		try {
			final URL url = new URL("http://services.runescape.com/m=itemdb_rs/results.ws?query=" + itemName);
			final BufferedReader br = new BufferedReader(new InputStreamReader(url.openStream()));
			String input;
			while ((input = br.readLine()) != null) {
				if(input.toLowerCase().contains("alt=\"" + itemName.toLowerCase().trim() + "\"")) {
					return lookup(Integer.parseInt(input.substring(input.indexOf("id=") + 3, input.lastIndexOf("\" alt"))));
				}
			}
		} catch (final Exception ignored) { }
		return null;
	}


	/**
	 * Looks up grand exchange information and returns a string array with the following contents
	 * String[0] = item name
	 * String[1] = item price
	 * String[2] = item id
	 * @param itemID for the item being looked up on the grand exchange
	 * @return : a string array of grand exchange information on the item id provided
	 */
	public static String[] lookup(final int itemID) {
		try {
			String[] info = {"0", "0", "0", "0"};
			final URL url = new URL("http://services.runescape.com/m=itemdb_rs/viewitem.ws?obj=" + itemID);
			final BufferedReader br = new BufferedReader(new InputStreamReader(url.openStream()));
			String input;
			while ((input = br.readLine()) != null) {
				if(input.startsWith("<meta name=\"keywords")) {
					info[0] = input.substring(input.lastIndexOf(",") + 1, input.lastIndexOf("\"")).trim();
					if(info[0].equals("java")) return null;
				}
				if(input.contains("Current guide price:")) {
					input = br.readLine();
					info[1] = formatter(input.substring(4, input.lastIndexOf('<')));
					info[2] = ("" + itemID);
					return info;
				}
			}
		} catch (final Exception ignored) {}
		return null;
	}

	/**
	 * Formats a string removing all abbreviations and commas out of it and returning just the raw integer value as a string
	 * @param num : string number to be formatted. Used for numbers like 3.2m or 20.6k
	 * @return : a complete number without any abbreviations in it.
	 */
	public static String formatter(String num) {
		try {
			return num.replaceAll("\\.","").replaceAll("m", "00000").replaceAll("k", "00").replaceAll(",", "");
		} catch (Exception e) {}
		return "0";
	}
}