initial commit

.gitignore

@@ -0,0 +1,43 @@
+.gradle
+build/
+!gradle/wrapper/gradle-wrapper.jar
+!**/src/main/**/build/
+!**/src/test/**/build/
+.kotlin
+
+### IntelliJ IDEA ###
+.idea/modules.xml
+.idea/jarRepositories.xml
+.idea/compiler.xml
+.idea/libraries/
+*.iws
+*.iml
+*.ipr
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store

.idea/.gitignore

@@ -0,0 +1,3 @@
+# Default ignored files
+/shelf/
+/workspace.xml

.idea/gradle.xml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="GradleSettings">
+    <option name="linkedExternalProjectsSettings">
+      <GradleProjectSettings>
+        <option name="externalProjectPath" value="$PROJECT_DIR$" />
+        <option name="gradleHome" value="" />
+        <option name="modules">
+          <set>
+            <option value="$PROJECT_DIR$" />
+          </set>
+        </option>
+      </GradleProjectSettings>
+    </option>
+  </component>
+</project>

.idea/misc.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ExternalStorageConfigurationManager" enabled="true" />
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_25" default="true" project-jdk-name="openjdk-25" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>

build.gradle

@@ -0,0 +1,27 @@
+plugins {
+    id 'java'
+    id "application"
+    id "com.gradleup.shadow" version "9.3.0"
+}
+
+group = 'de.mhsl.teamspeak.channelbot'
+version = '1.0-SNAPSHOT'
+
+repositories {
+    mavenCentral()
+}
+
+application {
+    mainClass = "de.mhsl.teamspeak.channelbot.TalkRoomAutoManager"
+}
+
+dependencies {
+    implementation 'com.fasterxml.jackson.core:jackson-databind:2.17.2'
+}
+
+shadowJar {
+    archiveBaseName = "talkroom-bot"
+    archiveVersion = "1.0.0"
+    archiveClassifier = "all"
+    mergeServiceFiles()
+}

gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,6 @@
+#Thu Dec 25 17:20:53 CET 2025
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.2.0-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

gradlew

@@ -0,0 +1,234 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+
+APP_NAME="Gradle"
+APP_BASE_NAME=${0##*/}
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+# Collect all arguments for the java command;
+#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"

gradlew.bat

@@ -0,0 +1,89 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

settings.gradle

@@ -0,0 +1 @@
+rootProject.name = 'TeamspeakChannelbot'

src/main/java/de/mhsl/teamspeak/channelbot/ChannelTree.java

@@ -0,0 +1,62 @@
+package de.mhsl.teamspeak.channelbot;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+public record ChannelTree(List<Channel> channels, Map<Integer, List<Channel>> byPid) {
+    public static ChannelTree from(List<Map<String, Object>> raw) {
+        List<Channel> channels = new ArrayList<>(raw.size());
+        Map<Integer, List<Channel>> byPid = new HashMap<>();
+
+        for(Map<String, Object> m : raw) {
+            int cid = intVal(m, "cid", -1);
+            int pid = intVal(m, "pid", 0);
+            String name = strVal(m, "channel_name", "");
+
+            Channel c = new Channel(cid, pid, name, m);
+            channels.add(c);
+            byPid.computeIfAbsent(pid, __ -> new ArrayList<>()).add(c);
+        }
+
+        return new ChannelTree(channels, byPid);
+    }
+
+    public Channel findByName(String channelName) {
+        for(Channel c : channels) {
+            if(c.name().equals(channelName)) return c;
+        }
+        return null;
+    }
+
+    public List<Channel> subChannelsOf(int parentCid) {
+        return new ArrayList<>(byPid.getOrDefault(parentCid, List.of()));
+    }
+
+    public int totalClients(Channel c) {
+        // in TS3 ServerQuery gibt es total_clients / total_clients_family usw.
+        // WebQuery bildet diese Felder i.d.R. als gleiche Keys ab.
+        // Defensiv: wenn nicht vorhanden, 0.
+        return intVal(c.raw(), "total_clients", 0);
+    }
+
+    public record Channel(int cid, int pid, String name, Map<String, Object> raw) {
+    }
+
+    private static int intVal(Map<String, Object> m, String key, int def) {
+        Object v = m.get(key);
+        if(v == null) return def;
+        if(v instanceof Number n) return n.intValue();
+        try {
+            return Integer.parseInt(String.valueOf(v));
+        } catch(Exception ignored) {
+            return def;
+        }
+    }
+
+    private static String strVal(Map<String, Object> m, String key, String def) {
+        Object v = m.get(key);
+        return v == null ? def : String.valueOf(v);
+    }
+}

src/main/java/de/mhsl/teamspeak/channelbot/Env.java

@@ -0,0 +1,28 @@
+package de.mhsl.teamspeak.channelbot;
+
+public final class Env {
+    private Env() {}
+
+    public static String require(String key) {
+        String v = System.getenv(key);
+        if (v == null || v.isBlank()) {
+            throw new IllegalStateException("Missing required env var: " + key);
+        }
+        return v.trim();
+    }
+
+    public static int getInt(String key, int def) {
+        String v = System.getenv(key);
+        if (v == null || v.isBlank()) return def;
+        try {
+            return Integer.parseInt(v.trim());
+        } catch (NumberFormatException e) {
+            throw new IllegalStateException("Invalid int for env var " + key + ": " + v);
+        }
+    }
+
+    public static String get(String key, String def) {
+        String v = System.getenv(key);
+        return (v == null || v.isBlank()) ? def : v.trim();
+    }
+}

src/main/java/de/mhsl/teamspeak/channelbot/TalkRoomAutoManager.java

@@ -0,0 +1,143 @@
+package de.mhsl.teamspeak.channelbot;
+
+import java.time.Duration;
+import java.util.*;
+
+public final class TalkRoomAutoManager {
+    private static final String BASE_URL = Env.require("TS_BASE_URL");
+    private static final String API_KEY  = Env.require("TS_API_KEY");
+    private static final int SID = Env.getInt("TS_SID", 1);
+    private static final Duration POLL_INTERVAL = Duration.ofSeconds(Env.getInt("TS_POLL_INTERVAL", 3));
+
+    static void main() {
+        TsWebQueryClient ts = new TsWebQueryClient(BASE_URL, API_KEY);
+        Map<String, RoomConfig> configs = defaultConfig();
+
+        new Timer().scheduleAtFixedRate(new TimerTask() {
+            @Override
+            public void run() {
+                try {
+                    tick(ts, configs);
+                } catch(Exception e) {
+                    System.err.println("[tick] " + e.getClass().getSimpleName() + ": " + e.getMessage());
+                }
+            }
+        }, 100, POLL_INTERVAL.toMillis());
+    }
+
+    private static Map<String, RoomConfig> defaultConfig() {
+        Map<String, RoomConfig> m = new LinkedHashMap<>();
+        m.put("[cspacer]»TalkRooms«", new RoomConfig("◊├ Talk - ", " -", 1, 15, true, -1));
+        m.put("[cspacer]»TalkRooms für 2«", new RoomConfig("◊├Talk [max 2] - ", " -", 1, 15, false, 2));
+        m.put("[cspacer]»TalkRooms für 3«", new RoomConfig("◊├Talk [max 3] - ", " -", 1, 15, false, 3));
+        m.put("[cspacer]»TalkRooms für 4«", new RoomConfig("◊├Talk [max 4] - ", " -", 1, 15, false, 4));
+        m.put("[cspacer]»TalkRooms für 5«", new RoomConfig("◊├Talk [max 5] - ", " -", 1, 15, false, 5));
+        return m;
+    }
+
+    private record RoomConfig(
+        String prefix,
+        String suffix,
+        int standardChannels,
+        int maxChannels,
+        boolean maxClientsUnlimited,
+        int maxClients
+    ) {}
+
+    private static void tick(TsWebQueryClient ts, Map<String, RoomConfig> configs) throws Exception {
+        // 1) komplette Channel-Liste holen und indexieren
+        List<Map<String, Object>> raw = ts.callBodyList(SID, "channellist", Map.of());
+        ChannelTree tree = ChannelTree.from(raw);
+
+        for (Map.Entry<String, RoomConfig> entry : configs.entrySet()) {
+            String parentName = entry.getKey();
+            RoomConfig cfg = entry.getValue();
+
+            ChannelTree.Channel parent = tree.findByName(parentName);
+            if (parent == null) {
+                System.err.println("Parent channel not found: " + parentName);
+                continue;
+            }
+
+            List<ChannelTree.Channel> subs = tree.subChannelsOf(parent.cid());
+            // sort "stabil" nach cid (TS liefert i.d.R. ohnehin sortiert, aber nicht garantiert)
+            subs.sort((a, b) -> Integer.compare(a.cid(), b.cid()));
+
+            // Falls keine Subchannels existieren: ersten erstellen
+            if (subs.isEmpty()) {
+                System.out.println("No standard channel under " + parentName + " -> creating one");
+                createSub(ts, parent.cid(), cfg, 1);
+                // refresh tree for this parent
+                raw = ts.callBodyList(SID, "channellist", Map.of());
+                tree = ChannelTree.from(raw);
+                subs = tree.subChannelsOf(parent.cid());
+                subs.sort((a, b) -> Integer.compare(a.cid(), b.cid()));
+            }
+
+            // Delete: wenn die letzten 2 leer sind und mehr als "standard" existieren
+            if (subs.size() > cfg.standardChannels) {
+                ChannelTree.Channel last = subs.getLast();
+                ChannelTree.Channel prev = subs.get(subs.size() - 2);
+
+                int lastClients = tree.totalClients(last);
+                int prevClients = tree.totalClients(prev);
+
+                if (lastClients == 0 && prevClients == 0) {
+                    System.out.println("Deleting empty tail channel: " + last.name() + " (cid=" + last.cid() + ")");
+                    deleteChannel(ts, last.cid());
+                    // refresh again (sauber bleiben)
+                    raw = ts.callBodyList(SID, "channellist", Map.of());
+                    tree = ChannelTree.from(raw);
+                    subs = tree.subChannelsOf(parent.cid());
+                    subs.sort((a, b) -> Integer.compare(a.cid(), b.cid()));
+                }
+            }
+
+            // Create: wenn letzter nicht leer und noch Platz und kein leerer Kanal vorhanden
+            if (subs.size() < cfg.maxChannels) {
+                ChannelTree.Channel last = subs.getLast();
+                int lastClients = tree.totalClients(last);
+
+                if (lastClients != 0) {
+                    int emptyCount = 0;
+                    for (ChannelTree.Channel c : subs) {
+                        if (tree.totalClients(c) == 0) emptyCount++;
+                    }
+                    if (emptyCount < 1) {
+                        int nextIndex = subs.size() + 1;
+                        System.out.println("Creating new channel under " + parentName + " -> #" + nextIndex);
+                        createSub(ts, parent.cid(), cfg, nextIndex);
+                    }
+                }
+            }
+        }
+    }
+
+    private static void createSub(TsWebQueryClient ts, int parentCid, RoomConfig cfg, int index) throws Exception {
+        Map<String, String> params = new LinkedHashMap<>();
+        params.put("channel_name", cfg.prefix + index + cfg.suffix);
+        params.put("channel_flag_permanent", "1");
+        params.put("cpid", String.valueOf(parentCid));
+
+        params.put("channel_codec", "4");          // 4 = Opus Voice
+        params.put("channel_codec_quality", "10"); // max
+
+        // max clients handling
+        if (cfg.maxClientsUnlimited) {
+            params.put("channel_flag_maxclients_unlimited", "1");
+        } else {
+            params.put("channel_flag_maxclients_unlimited", "0");
+            params.put("channel_maxclients", String.valueOf(cfg.maxClients));
+        }
+
+        ts.call(SID, "channelcreate", params);
+    }
+
+    private static void deleteChannel(TsWebQueryClient ts, int cid) throws Exception {
+        // TS3 query uses: channeldelete cid=... force=1
+        ts.call(SID, "channeldelete", Map.of(
+            "cid", String.valueOf(cid),
+            "force", "1"
+        ));
+    }
+}

src/main/java/de/mhsl/teamspeak/channelbot/TsWebQueryClient.java

@@ -0,0 +1,99 @@
+package de.mhsl.teamspeak.channelbot;
+
+import com.fasterxml.jackson.core.type.TypeReference;
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+import java.net.URI;
+import java.net.URLEncoder;
+import java.net.http.HttpClient;
+import java.net.http.HttpRequest;
+import java.net.http.HttpResponse;
+import java.nio.charset.StandardCharsets;
+import java.time.Duration;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+
+public final class TsWebQueryClient {
+    private final HttpClient http;
+    private final ObjectMapper om = new ObjectMapper();
+    private final String baseUrl;
+    private final String apiKey;
+
+    public TsWebQueryClient(String baseUrl, String apiKey) {
+        this.baseUrl = trimSlash(baseUrl);
+        this.apiKey = apiKey;
+        this.http = HttpClient.newBuilder()
+            .connectTimeout(Duration.ofSeconds(3))
+            .build();
+    }
+
+    public JsonNode call(int sid, String command, Map<String, String> params) throws Exception {
+        Map<String, String> all = new LinkedHashMap<>();
+        if (params != null) all.putAll(params);
+
+        // WebQuery nutzt typischerweise api-key als query param (Beispiele in TS WebQuery Threads). :contentReference[oaicite:1]{index=1}
+        all.put("api-key", apiKey);
+
+        String url = baseUrl + "/" + sid + "/" + command + "?" + encode(all);
+
+        HttpRequest req = HttpRequest.newBuilder()
+            .uri(URI.create(url))
+            .timeout(Duration.ofSeconds(10))
+            .GET()
+            .build();
+
+        HttpResponse<String> resp = http.send(req, HttpResponse.BodyHandlers.ofString());
+        if (resp.statusCode() != 200) {
+            throw new RuntimeException("WebQuery HTTP " + resp.statusCode() + ": " + resp.body());
+        }
+
+        JsonNode root = om.readTree(resp.body());
+        ensureOk(root);
+        return root;
+    }
+
+    /**
+     * Gibt "body" als Liste von Maps zurück, wenn body ein Array ist.
+     * Falls body ein Objekt ist oder fehlt: Exception.
+     */
+    public List<Map<String, Object>> callBodyList(int sid, String command, Map<String, String> params) throws Exception {
+        JsonNode root = call(sid, command, params);
+        JsonNode body = root.get("body");
+        if (body == null || !body.isArray()) {
+            throw new RuntimeException("Unexpected WebQuery response: missing/invalid body array for " + command);
+        }
+        return om.convertValue(body, new TypeReference<>() {});
+    }
+
+    private void ensureOk(JsonNode root) {
+        // WebQuery liefert status-Objekt (code/message). Die genaue Struktur ist je nach Version so oder ähnlich.
+        // Wir sind defensiv: wenn status.code existiert und != 0 => Fehler.
+        JsonNode status = root.get("status");
+        if (status != null) {
+            JsonNode code = status.get("code");
+            if (code != null && code.isInt() && code.intValue() != 0) {
+                String msg = status.has("message") ? status.get("message").asText() : "unknown";
+                throw new RuntimeException("WebQuery error code=" + code.intValue() + " msg=" + msg);
+            }
+        }
+    }
+
+    private static String encode(Map<String, String> params) {
+        StringBuilder sb = new StringBuilder();
+        for (Map.Entry<String, String> e : params.entrySet()) {
+            if (!sb.isEmpty()) sb.append('&');
+            sb.append(URLEncoder.encode(e.getKey(), StandardCharsets.UTF_8));
+            sb.append('=');
+            sb.append(URLEncoder.encode(String.valueOf(e.getValue()), StandardCharsets.UTF_8));
+        }
+        return sb.toString();
+    }
+
+    private static String trimSlash(String s) {
+        if (s == null) return "";
+        while (s.endsWith("/")) s = s.substring(0, s.length() - 1);
+        return s;
+    }
+}