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CurrencyConvert.java
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CurrencyConvert.java
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package me.despawningbone.discordbot.command.info;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.text.DecimalFormat;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import org.apache.commons.lang3.exception.ExceptionUtils;
import org.json.JSONException;
import org.json.JSONObject;
import org.json.JSONTokener;
/*import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;*/
import me.despawningbone.discordbot.command.Command;
import me.despawningbone.discordbot.command.CommandResult;
import me.despawningbone.discordbot.command.CommandResult.CommandResultType;
import net.dv8tion.jda.api.entities.Message;
import net.dv8tion.jda.api.entities.channel.concrete.TextChannel;
import net.dv8tion.jda.api.entities.User;
public class CurrencyConvert extends Command {
public CurrencyConvert() {
this.alias = Arrays.asList("currency", "cc");
this.desc = "convert a currency to another!";
this.usage = "<from> <to> [amount]";
this.remarks = Arrays.asList("The currency units use the format of ISO 4217. For the list, see below:", "https://en.wikipedia.org/wiki/ISO_4217");
this.examples = Arrays.asList("HKD USD", "EUR SGD 100");
}
@Override
public CommandResult execute(TextChannel channel, User author, Message msg, String[] args) {
String fromc = null;
String toc = null;
String num = null;
try {
fromc = args[0].toUpperCase();
toc = args[1].toUpperCase();
} catch (ArrayIndexOutOfBoundsException e) {
return new CommandResult(CommandResultType.INVALIDARGS, "Please enter 2 currencies.");
}
try { //there is a lot more info, use them too?
InputStream stream = new URL("https://query1.finance.yahoo.com/v8/finance/chart/"+ fromc + toc + "=X?range=6h&includePrePost=false&interval=1m").openStream();
JSONObject main = new JSONObject(new JSONTokener(stream)).getJSONObject("chart").getJSONArray("result").getJSONObject(0);
double rate = 0;
try {
List<Object> close = main.getJSONObject("indicators").getJSONArray("quote").getJSONObject(0).getJSONArray("close").toList();
close.removeAll(Collections.singleton(null));
rate = (double) close.get(close.size() - 1);
} catch (JSONException e) {
rate = main.getJSONObject("meta").getDouble("previousClose");
//rate += new JSONObject(new JSONTokener(new URL("https://query1.finance.yahoo.com/v1/finance/lookup?formatted=true&lang=en-US&region=US&query=" + fromc + toc + "=x&type=all&count=25&start=0&corsDomain=finance.yahoo.com").openStream()))
//.getJSONObject("finance").getJSONArray("result").getJSONObject(0).getJSONArray("documents").getJSONObject(0).getJSONObject("regularMarketChange").getDouble("raw");
}
if(rate == 1) {
return new CommandResult(CommandResultType.INVALIDARGS, "Invalid currency conversion!");
}
try {
num = args[2];
} catch (ArrayIndexOutOfBoundsException e) {
num = "1";
}
double f = rate * Double.parseDouble(num);
channel.sendMessage(num + " " + fromc.toUpperCase() + " = " + new DecimalFormat("#.####").format(f) + " " + toc.toUpperCase()).queue();
return new CommandResult(CommandResultType.SUCCESS);
} catch (IOException e) {
if(e instanceof FileNotFoundException) {
return new CommandResult(CommandResultType.INVALIDARGS, "Invalid currency. See the help for the list of available currencies.");
} else {
return new CommandResult(CommandResultType.ERROR, ExceptionUtils.getStackTrace(e));
}
} catch (NumberFormatException e) {
return new CommandResult(CommandResultType.INVALIDARGS, "Invalid amount.");
}
}
}

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Mime Type
text/x-java
Expires
Sun, Aug 3, 4:00 AM (43 m, 58 s)
Storage Engine
local-disk
Storage Format
Raw Data
Storage Handle
af/b9/e459bbd95638738f01b4b969683b

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