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Implement basic help command, which provides an overview over all registered commands

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tschulz 2016-05-20 11:11:38 +02:00
parent 91191ee63b
commit 2089dfbe23
1 changed files with 37 additions and 0 deletions
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src/main/java/org/telegram/telegrambots/api/commands/HelpCommand.java Normal file
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package org.telegram.telegrambots.api.commands;
import org.telegram.telegrambots.BotLogger;
import org.telegram.telegrambots.TelegramApiException;
import org.telegram.telegrambots.api.methods.send.SendMessage;
/**
* standard help command, which gets registered by default, to supply a list of all available commands
*
* @author tschulz
*/
public class HelpCommand extends Command {
private static final String LOGTAG = "HELPCOMMAND";
private final ICommandRegistery commandRegistry;
public HelpCommand(ICommandRegistery commandRegistry, String botToken) {
super("help", "Gives an overview over all Commands registered for this bot", botToken);
this.commandRegistry = commandRegistry;
}
@Override
void execute(String[] arguments, long chatId) {
for (Command registeredCommand : commandRegistry.getRegisteredCommands()) {
SendMessage sendMessage = new SendMessage();
sendMessage.setChatId(chatId);
sendMessage.enableHtml(true);
sendMessage.setText("<b>" + registeredCommand.getCommandIdentifier() + "</b>\n" + registeredCommand.getDescription());
try {
sendMessage(sendMessage);
} catch (TelegramApiException e) {
BotLogger.error("Failed to send HelpMessage", LOGTAG, e);
}
}
}
}