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1 changed files with 97 additions and 91 deletions
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@ -38,7 +38,6 @@ import net.thauvin.erik.mobibot.Mobibot;
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import net.thauvin.erik.mobibot.Utils;
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import net.thauvin.erik.mobibot.msg.ErrorMessage;
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import net.thauvin.erik.mobibot.msg.Message;
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import net.thauvin.erik.mobibot.msg.NoticeMessage;
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import net.thauvin.erik.mobibot.msg.PublicMessage;
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import org.apache.commons.lang3.StringUtils;
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import org.jdom2.Document;
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@ -51,13 +50,11 @@ import javax.xml.XMLConstants;
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import java.io.IOException;
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import java.net.URL;
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import java.text.NumberFormat;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.Locale;
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import java.util.Map;
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import java.util.TreeMap;
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import static net.thauvin.erik.mobibot.Utils.bold;
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/**
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* The CurrentConverter module.
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*
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@ -67,13 +64,12 @@ import static net.thauvin.erik.mobibot.Utils.bold;
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*/
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@SuppressWarnings("PMD.UseConcurrentHashMap")
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public final class CurrencyConverter extends ThreadedModule {
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/**
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* The rates keyword.
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*/
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static final String CURRENCY_RATES_KEYWORD = "rates";
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// Currency command
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private static final String CURRENCY_CMD = "currency";
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// Rates keyword
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private static final String CURRENCY_RATES_KEYWORD = "rates";
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// Empty rate table.
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private static final String EMPTY_RATE_TABLE = "Sorry, but the exchange rate table is empty.";
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// Exchange rates
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private static final Map<String, String> EXCHANGE_RATES = new TreeMap<>();
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// Exchange rates table URL
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@ -96,9 +92,54 @@ public final class CurrencyConverter extends ThreadedModule {
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*
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* @param query The query.
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* @return The {@link Message} contained the converted currency.
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* @throws ModuleException If an error occurs while converting.
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*/
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static Message convertCurrency(final String query) throws ModuleException {
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static Message convertCurrency(final String query) {
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final String[] cmds = query.split(" ");
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if (cmds.length == 4) {
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if (cmds[3].equals(cmds[1]) || "0".equals(cmds[0])) {
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return new PublicMessage("You're kidding, right?");
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} else {
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final String to = cmds[1].toUpperCase(Constants.LOCALE);
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final String from = cmds[3].toUpperCase(Constants.LOCALE);
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if (EXCHANGE_RATES.containsKey(to) && EXCHANGE_RATES.containsKey(from)) {
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try {
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final double amt = Double.parseDouble(cmds[0].replace(",", ""));
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final double doubleFrom = Double.parseDouble(EXCHANGE_RATES.get(to));
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final double doubleTo = Double.parseDouble(EXCHANGE_RATES.get(from));
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return new PublicMessage(
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NumberFormat.getCurrencyInstance(Constants.LOCALE).format(amt).substring(1)
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+ ' '
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+ cmds[1].toUpperCase(Constants.LOCALE)
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+ " = "
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+ NumberFormat.getCurrencyInstance(Constants.LOCALE)
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.format((amt * doubleTo) / doubleFrom)
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.substring(1)
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+ ' '
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+ cmds[3].toUpperCase(Constants.LOCALE));
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} catch (NumberFormatException e) {
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return new ErrorMessage("Let's try with some real numbers next time, okay?");
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}
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} else {
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return new ErrorMessage("Sounds like monopoly money to me!");
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}
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}
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}
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return new ErrorMessage("Invalid query. Let's try again.");
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}
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static List<String> currencyRates() {
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final List<String> rates = new ArrayList<>(33);
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for (final Map.Entry<String, String> rate : EXCHANGE_RATES.entrySet()) {
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rates.add(" " + rate.getKey() + ": " + StringUtils.leftPad(rate.getValue(), 8));
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}
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return rates;
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}
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static void loadRates() throws ModuleException {
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if (EXCHANGE_RATES.isEmpty()) {
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try {
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final SAXBuilder builder = new SAXBuilder();
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@ -116,71 +157,20 @@ public final class CurrencyConverter extends ThreadedModule {
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pubDate = cubeTime.getAttribute("time").getValue();
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final List<Element> cubes = cubeTime.getChildren();
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Element cube;
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for (final Element rawCube : cubes) {
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cube = rawCube;
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for (final Element cube : cubes) {
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EXCHANGE_RATES.put(
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cube.getAttribute("currency").getValue(),
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cube.getAttribute("rate").getValue());
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}
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EXCHANGE_RATES.put("EUR", "1");
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} catch (JDOMException e) {
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throw new ModuleException(query, "An error has occurred while parsing the exchange rates table.", e);
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} catch (IOException e) {
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throw new ModuleException(
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query, "An error has occurred while fetching the exchange rates table.", e);
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} catch (JDOMException | IOException e) {
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throw new ModuleException(e.getMessage(),
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"An error has occurred while parsing the exchange rates table.",
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e);
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}
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}
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if (EXCHANGE_RATES.isEmpty()) {
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return new ErrorMessage("Sorry, but the exchange rate table is empty.");
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} else {
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final String[] cmds = query.split(" ");
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if (cmds.length == 4) {
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if (cmds[3].equals(cmds[1]) || "0".equals(cmds[0])) {
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return new ErrorMessage("You're kidding, right?");
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} else {
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try {
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final double amt = Double.parseDouble(cmds[0].replace(",", ""));
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final double from =
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Double.parseDouble(EXCHANGE_RATES.get(cmds[1].toUpperCase(Constants.LOCALE)));
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final double to = Double.parseDouble(EXCHANGE_RATES.get(cmds[3].toUpperCase(Constants.LOCALE)));
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return new PublicMessage(
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NumberFormat.getCurrencyInstance(Locale.US).format(amt).substring(1)
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+ ' '
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+ cmds[1].toUpperCase(Constants.LOCALE)
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+ " = "
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+ NumberFormat.getCurrencyInstance(Locale.US)
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.format((amt * to) / from)
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.substring(1)
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+ ' '
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+ cmds[3].toUpperCase(Constants.LOCALE));
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} catch (Exception e) {
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throw new ModuleException("convertCurrency(" + query + ')',
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"The supported currencies are: " + EXCHANGE_RATES.keySet(), e);
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}
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}
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} else if (CURRENCY_RATES_KEYWORD.equals(query)) {
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final StringBuilder buff = new StringBuilder().append('[').append(pubDate).append("]: ");
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int i = 0;
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for (final Map.Entry<String, String> rate : EXCHANGE_RATES.entrySet()) {
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if (i > 0) {
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buff.append(", ");
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}
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buff.append(rate.getKey()).append(": ").append(rate.getValue());
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i++;
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}
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return new NoticeMessage(buff.toString());
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}
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}
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return new ErrorMessage("The supported currencies are: " + EXCHANGE_RATES.keySet());
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}
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/**
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@ -206,22 +196,28 @@ public final class CurrencyConverter extends ThreadedModule {
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*/
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@SuppressFBWarnings("REDOS")
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@Override
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void run(final Mobibot bot, final String sender, final String cmd, final String query) {
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if (StringUtils.isNotBlank(sender) && StringUtils.isNotBlank(query)) {
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if (query.matches("\\d+([,\\d]+)?(\\.\\d+)? [a-zA-Z]{3}+ to [a-zA-Z]{3}+")) {
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void run(final Mobibot bot, final String sender, final String cmd, final String query, final boolean isPrivate) {
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if (EXCHANGE_RATES.isEmpty()) {
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try {
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final Message msg = convertCurrency(query);
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if (msg.isError()) {
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helpResponse(bot, sender, CURRENCY_CMD + ' ' + query, false);
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}
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bot.send(sender, msg);
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loadRates();
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} catch (ModuleException e) {
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bot.getLogger().warn(e.getDebugMessage(), e);
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bot.send(sender, e.getMessage());
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}
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}
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if (EXCHANGE_RATES.isEmpty()) {
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bot.send(sender, EMPTY_RATE_TABLE, true);
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} else if (query.matches("\\d+([,\\d]+)?(\\.\\d+)? [a-zA-Z]{3}+ to [a-zA-Z]{3}+")) {
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final Message msg = convertCurrency(query);
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bot.send(sender, msg);
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if (msg.isError()) {
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helpResponse(bot, sender, isPrivate);
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}
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} else if (query.contains(CURRENCY_RATES_KEYWORD)) {
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bot.send(sender, "The currency rates for " + Utils.bold(pubDate) + " are:", isPrivate);
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bot.sendCommandsList(sender, currencyRates(), 3, isPrivate, false);
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} else {
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helpResponse(bot, sender, CURRENCY_CMD + ' ' + query, true);
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}
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helpResponse(bot, sender, isPrivate);
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}
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}
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@ -229,15 +225,25 @@ public final class CurrencyConverter extends ThreadedModule {
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* {@inheritDoc}
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*/
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@Override
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public void helpResponse(final Mobibot bot, final String sender, final String args, final boolean isPrivate) {
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bot.send(sender, bold("To convert from one currency to another:"));
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bot.send(sender, Utils.helpIndent(bot.getNick() + ": " + CURRENCY_CMD + " [100 USD to EUR]"));
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if (args.endsWith(CURRENCY_CMD)) {
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bot.send(sender, bold("For a listing of currency rates:"));
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bot.send(sender, Utils.helpIndent(bot.getNick() + ": " + CURRENCY_CMD) + ' ' + CURRENCY_RATES_KEYWORD);
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bot.send(sender, bold("For a listing of supported currencies:"));
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bot.send(sender, Utils.helpIndent(bot.getNick() + ": " + CURRENCY_CMD));
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public void helpResponse(final Mobibot bot, final String sender, final boolean isPrivate) {
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if (EXCHANGE_RATES.isEmpty()) {
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try {
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loadRates();
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} catch (ModuleException e) {
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bot.getLogger().debug(e.getDebugMessage(), e);
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}
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}
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if (EXCHANGE_RATES.isEmpty()) {
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bot.send(sender, EMPTY_RATE_TABLE, isPrivate);
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} else {
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bot.send(sender, "To convert from one currency to another:", isPrivate);
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bot.send(sender, Utils.helpIndent(bot.getNick() + ": " + CURRENCY_CMD + " 100 USD to EUR"), isPrivate);
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bot.send(sender, "For a listing of current rates:", isPrivate);
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bot.send(sender,
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Utils.helpIndent(bot.getNick() + ": " + CURRENCY_CMD) + ' ' + CURRENCY_RATES_KEYWORD,
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isPrivate);
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bot.send(sender, "The supported currencies are: ", isPrivate);
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bot.sendCommandsList(sender, new ArrayList<>(EXCHANGE_RATES.keySet()), 11, isPrivate, false);
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}
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}
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}
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