initial

src/main/java/AtlasGruppe/groupchange.java

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+package AtlasGruppe;
+
+import net.dv8tion.jda.core.entities.ChannelType;
+import net.dv8tion.jda.core.entities.Member;
+import net.dv8tion.jda.core.entities.Role;
+import net.dv8tion.jda.core.entities.User;
+import net.dv8tion.jda.core.entities.impl.RoleImpl;
+import net.dv8tion.jda.core.events.message.MessageReceivedEvent;
+import net.dv8tion.jda.core.hooks.ListenerAdapter;
+import net.dv8tion.jda.core.exceptions.InsufficientPermissionException;
+
+
+public class groupchange extends ListenerAdapter {
+
+    private String prefixPromote;
+    private String prefixDegradation;
+
+
+    public groupchange() {
+        this.prefixPromote = "!add";
+        this.prefixDegradation = "!remove";
+
+    }
+
+    @Override
+    public void onMessageReceived(MessageReceivedEvent event) {
+        if ((!event.getMessage().getContentRaw().startsWith(this.prefixPromote) && !event.getMessage().getContentRaw().startsWith(this.prefixDegradation)) || event.getChannelType() != ChannelType.TEXT) {
+            return;
+        }
+
+        User author = event.getAuthor();
+        if (!author.isBot()) {
+            if (event.getMessage().getContentRaw().startsWith(this.prefixPromote + " ")) {
+                this.changeGroup(event, true);
+            } else if (event.getMessage().getContentRaw().startsWith(this.prefixDegradation + " ")) {
+                this.changeGroup(event, false);
+            }
+        }
+    }
+
+    private void changeGroup(MessageReceivedEvent event, Boolean promote) {
+
+        Member MentionedMember = null;
+        User MentionedUser = null;
+        boolean roleCheck = false;
+
+        try {
+
+            Role targetRole = event.getGuild().getRolesByName("Test2", true).get(0);
+            Role authorizedRole = event.getGuild().getRolesByName("Test2", true).get(0);
+
+            if (event.getMessage().getMentionedUsers().isEmpty()) {
+                event.getChannel().sendMessage(event.getMember().getAsMention() + " Benutzer nicht gefunden").queue();
+                return;
+            }
+
+            MentionedUser = event.getMessage().getMentionedUsers().get(0);
+
+            if (MentionedUser.isBot()) { // Ziel darf kein Bot sein
+                event.getChannel().sendMessage(event.getMember().getAsMention() + " Finger weg von den Bots!").queue();
+                return;
+            }
+
+            MentionedMember = event.getGuild().getMemberById(MentionedUser.getId());
+
+            roleCheck = false;
+            for (Object x : event.getMember().getRoles().toArray()) {
+                if (((RoleImpl) x).getId().equals(authorizedRole.getId())) { // hat Absender die Notwendig Gruppe
+                    roleCheck = true;
+                    break;
+                }
+            }
+            if (!roleCheck) {
+                event.getChannel().sendMessage(event.getMember().getAsMention() + " Du bist nicht berechtigt den Befehl auszuführen").queue();
+                return;
+            }
+
+            if (promote) {
+                roleCheck = false;
+                for (Object x : MentionedMember.getRoles().toArray()) {
+                    if (((RoleImpl) x).getId().equals(targetRole.getId())) { // hat Ziel bereits die Gruppe?
+                        roleCheck = true;
+                        break;
+                    }
+                }
+                if (roleCheck) {
+                    event.getChannel().sendMessage(event.getMember().getAsMention() + " " + MentionedMember.getEffectiveName() + " hat bereits die Gruppe " + targetRole.getName()).queue();
+                    return;
+                }
+                event.getGuild().getController().addSingleRoleToMember(MentionedMember, targetRole).queue();
+                event.getChannel().sendMessage(event.getMember().getAsMention() + " " + MentionedMember.getEffectiveName() + " wurde der Gruppe " + targetRole.getName() + " zugeteilt").queue();
+            } else {
+                roleCheck = false;
+                for (Object x : MentionedMember.getRoles().toArray()) {
+                    if (((RoleImpl) x).getId().equals(targetRole.getId())) { // hat Ziel bereits die Gruppe?
+                        roleCheck = true;
+                        break;
+                    }
+                }
+                if (!roleCheck) {
+                    event.getChannel().sendMessage(event.getMember().getAsMention() + " " + MentionedMember.getEffectiveName() + " ist nicht in der Gruppe " + targetRole.getName()).queue();
+                    return;
+                }
+                event.getGuild().getController().removeSingleRoleFromMember(MentionedMember, targetRole).queue();
+                event.getChannel().sendMessage(event.getMember().getAsMention() + " " + MentionedMember.getEffectiveName() + " wurde aus der Gruppe " + targetRole.getName() + " entfernt").queue();
+            }
+
+        } catch (InsufficientPermissionException e) {
+            event.getChannel().sendMessage(event.getMember().getAsMention() + " " + e.getMessage()).queue();
+        } catch (Exception e) {
+            //System.out.println("problem: "+e.getMessage());
+        }
+
+    }
+
+
+}

src/main/java/core/Main.java

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+package core;
+
+
+import AtlasGruppe.groupchange;
+import net.dv8tion.jda.core.JDA;
+import net.dv8tion.jda.core.JDABuilder;
+import net.dv8tion.jda.core.AccountType;
+import net.dv8tion.jda.core.OnlineStatus;
+import net.dv8tion.jda.core.entities.Game;
+
+
+import javax.security.auth.login.LoginException;
+
+public class Main {
+
+    public static void main(String[] args) {
+        // Insert your bot's token here
+        String token = "NDA1MDQ2NDg1OTk0OTYyOTQ2.DUessg.YFKvsTLIyPwprLlEOnZc0PXWJH0";
+
+        JDABuilder builder = new JDABuilder(AccountType.BOT);
+
+        builder.setToken(token);
+        builder.setAutoReconnect(true);
+        builder.setStatus(OnlineStatus.ONLINE);
+        builder.setGame(Game.watching("Den NinjaSäuen zu"));
+        builder.addEventListener(new groupchange());
+
+        try {
+            JDA jda = builder.build();
+        }
+        catch (LoginException e) {
+            e.printStackTrace();
+        }
+
+
+    }
+
+}