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Purge.java
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package me.despawningbone.discordbot.command.admin;
import java.util.Arrays;
import java.util.EnumSet;
import java.util.List;
import java.util.stream.Collectors;
import me.despawningbone.discordbot.DiscordBot;
import me.despawningbone.discordbot.command.Command;
import me.despawningbone.discordbot.command.CommandResult;
import me.despawningbone.discordbot.command.CommandResult.CommandResultType;
import net.dv8tion.jda.api.Permission;
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 Purge extends Command {
public Purge() {
this.desc = "Clear the bot's message";
this.usage = "<count>";
this.remarks = Arrays.asList("Note: Count must be in between 1 to 100, and it includes the messages in between.");
this.botUserLevel = -BotUserLevel.BOT_MOD.ordinal();
this.examples = Arrays.asList("20");
this.perms = EnumSet.of(Permission.MESSAGE_MANAGE);
}
@Override //TODO rewrite purge to purge until message deleted meet the count instead
public CommandResult execute(TextChannel channel, User author, Message msg, String[] args) {
int n = 0;
try {
n = Integer.parseInt(args[0]);
} catch (NumberFormatException e) {
return new CommandResult(CommandResultType.INVALIDARGS, "Please enter a correct number.");
} catch (ArrayIndexOutOfBoundsException e) {
return new CommandResult(CommandResultType.INVALIDARGS, "Please enter a number.");
}
if (n > 100) {
return new CommandResult(CommandResultType.INVALIDARGS, "The number entered is too large.");
}
channel.getHistory().retrievePast(n).queue(history -> {
List<Message> msgs = history.stream()
.filter(hmsg -> hmsg.getAuthor().getId().equals(DiscordBot.BotID)).collect(Collectors.toList());
if(msgs.size() > 1 && channel.getGuild().getSelfMember().hasPermission(Permission.MESSAGE_MANAGE)) channel.deleteMessages(msgs).queue();
else msgs.forEach(m -> channel.deleteMessageById(m.getId()).queue());
//if no result ignore
});
return new CommandResult(CommandResultType.SUCCESS);
}
}

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text/x-java
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Sun, Aug 3, 4:03 AM (43 m, 17 s)
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