add command for running scheduled tasks

src/main/java/net/discordjug/javabot/systems/staff_commands/RunScheduledTaskCommand.java

@@ -0,0 +1,86 @@
+package net.discordjug.javabot.systems.staff_commands;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.stream.Collectors;
+
+import org.springframework.scheduling.config.ScheduledTaskHolder;
+
+import net.discordjug.javabot.data.config.BotConfig;
+import net.discordjug.javabot.util.Responses;
+import net.dv8tion.jda.api.Permission;
+import net.dv8tion.jda.api.events.interaction.command.CommandAutoCompleteInteractionEvent;
+import net.dv8tion.jda.api.events.interaction.command.SlashCommandInteractionEvent;
+import net.dv8tion.jda.api.interactions.AutoCompleteQuery;
+import net.dv8tion.jda.api.interactions.commands.Command;
+import net.dv8tion.jda.api.interactions.commands.Command.Choice;
+import net.dv8tion.jda.api.interactions.commands.DefaultMemberPermissions;
+import net.dv8tion.jda.api.interactions.commands.OptionMapping;
+import net.dv8tion.jda.api.interactions.commands.OptionType;
+import net.dv8tion.jda.api.interactions.commands.build.Commands;
+import xyz.dynxsty.dih4jda.interactions.AutoCompletable;
+import xyz.dynxsty.dih4jda.interactions.commands.application.SlashCommand;
+import xyz.dynxsty.dih4jda.util.AutoCompleteUtils;
+
+/**
+ * This command allows manually executing scheduled tasks.
+ */
+public class RunScheduledTaskCommand extends SlashCommand implements AutoCompletable{
+
+	private ScheduledTaskHolder taskHolder;
+
+	/**
+	 * The constructor of this class, which sets the corresponding {@link SubcommandData}.
+	 * @param botConfig the configuration of the bot
+	 * @param taskHolder A Spring object managing scheduled tasks
+	 */
+	public RunScheduledTaskCommand(BotConfig botConfig, ScheduledTaskHolder taskHolder) {
+		setCommandData(Commands.slash("run-task", "(ADMIN ONLY) Run scheduled tasks")
+				.setDefaultPermissions(DefaultMemberPermissions.enabledFor(Permission.ADMINISTRATOR))
+				.setGuildOnly(true)
+				.addOption(OptionType.STRING, "name", "Class name of the task", true, true)
+		);
+		setRequiredUsers(botConfig.getSystems().getAdminConfig().getAdminUsers());
+
+		this.taskHolder = taskHolder;
+
+
+	}
+
+	@Override
+	public void execute(SlashCommandInteractionEvent event) {
+		String name = event.getOption("name", "", OptionMapping::getAsString);
+		if (name.isEmpty()) {
+			Responses.replyMissingArguments(event).queue();
+			return;
+		}
+		taskHolder
+			.getScheduledTasks()
+			.stream()
+			.filter(r -> name.equals(r.toString()))
+			.findAny()
+			.ifPresentOrElse(r -> {
+				event.deferReply(true).queue();
+				try {
+					r.getTask().getRunnable().run();
+					Responses.success(event.getHook(), "Task successful", "Task was executed successfully").queue();
+					//CHECKSTYLE:OFF This is a handler for all sort of failures that could possibly happen
+				}catch (RuntimeException e) {
+					//CHECKSTYLE:ON
+					Responses.error(event, "Task failed with an exception", e.getClass().getName() + (e.getMessage() == null ? "" : ": "+e.getMessage()));
+				}
+			}, () -> {
+				Responses.error(event, "Cannot find task `%s`", name).queue();
+			});
+	}
+
+	@Override
+	public void handleAutoComplete(CommandAutoCompleteInteractionEvent event, AutoCompleteQuery target) {
+		List<Choice> choices = taskHolder
+				.getScheduledTasks()
+				.stream()
+				.map(r -> new Command.Choice(r.toString(), r.toString()))
+				.collect(Collectors.toCollection(ArrayList::new));
+		event.replyChoices(AutoCompleteUtils.filterChoices(event, choices)).queue();
+	}
+}