WIP: Move into multi module project structure

bot/pom.xml

@@ -0,0 +1,81 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <artifactId>dchat</artifactId>
+        <groupId>de.hhhammer.dchat</groupId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
+
+    <artifactId>bot</artifactId>
+    <version>1.0-SNAPSHOT</version>
+    <name>bot</name>
+
+    <dependencies>
+        <dependency>
+            <groupId>de.hhhammer.dchat</groupId>
+            <artifactId>db</artifactId>
+            <version>1.0-SNAPSHOT</version>
+        </dependency>
+        <dependency>
+            <groupId>org.javacord</groupId>
+            <artifactId>javacord</artifactId>
+            <version>3.8.0</version>
+            <type>pom</type>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.logging.log4j</groupId>
+            <artifactId>log4j-to-slf4j</artifactId>
+            <version>2.20.0</version>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <configuration>
+                    <compilerArgs>
+                        <compilerArg>--enable-preview</compilerArg>
+                    </compilerArgs>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-shade-plugin</artifactId>
+                <configuration>
+                    <shadedArtifactAttached>true</shadedArtifactAttached>
+                    <shadedClassifierName>fat</shadedClassifierName>
+                    <transformers>
+                        <transformer
+                                implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
+                            <manifestEntries>
+                                <Main-Class>de.hhhammer.dchat.bot.App</Main-Class>
+                            </manifestEntries>
+                        </transformer>
+                    </transformers>
+                    <filters>
+                        <filter>
+                            <artifact>*:*</artifact>
+                            <excludes>
+                                <exclude>META-INF/*.SF</exclude>
+                                <exclude>META-INF/*.DSA</exclude>
+                                <exclude>META-INF/*.RSA</exclude>
+                            </excludes>
+                        </filter>
+                    </filters>
+                </configuration>
+                <executions>
+                    <execution>
+                        <phase>package</phase>
+                        <goals>
+                            <goal>shade</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+</project>

bot/src/main/java/de/hhhammer/dchat/bot/App.java

@@ -1,29 +1,15 @@
-package de.hhhammer.dchat;
+package de.hhhammer.dchat.bot;
 
+import de.hhhammer.dchat.bot.openai.ChatGPTService;
 import de.hhhammer.dchat.db.ServerDBService;
 import de.hhhammer.dchat.db.UserDBService;
-import de.hhhammer.dchat.migration.MigrationExecutor;
-import de.hhhammer.dchat.openai.ChatGPTService;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import java.net.http.HttpClient;
-import java.util.concurrent.ExecutionException;
-import java.util.concurrent.Executors;
-
-public class Main {
-    private static final Logger logger = LoggerFactory.getLogger(Main.class);
-    private static final String DB_MIGRATION_PATH = "db/schema.sql";
-    private final DiscordBot discordBot;
-    private final WebAPI webAPI;
-    private final DBMigrator dbMigrator;
-
-    public Main(DiscordBot discordBot, WebAPI webAPI, DBMigrator dbMigrator) {
-        this.discordBot = discordBot;
-        this.webAPI = webAPI;
-        this.dbMigrator = dbMigrator;
-    }
 
+public class App {
+    private static final Logger logger = LoggerFactory.getLogger(App.class);
 
     public static void main(String[] args) {
         String discordApiKey = System.getenv("DISCORD_API_KEY");
@@ -44,27 +30,11 @@ public class Main {
             System.exit(1);
         }
 
-        String apiPortStr = System.getenv("API_PORT") != null ? System.getenv("API_PORT") : "8080";
-        int apiPort = Integer.parseInt(apiPortStr);
-
         var chatGPTService = new ChatGPTService(openaiApiKey, HttpClient.newHttpClient());
         var serverDBService = new ServerDBService(postgresUrl, postgresUser, postgresPassword);
         var userDBService = new UserDBService(postgresUrl, postgresUser, postgresPassword);
 
         var discordBot = new DiscordBot(serverDBService, userDBService, chatGPTService, discordApiKey);
-        var webAPI = new WebAPI(serverDBService, userDBService, apiPort);
-        var dbMigrator = new DBMigrator(new MigrationExecutor(postgresUrl, postgresUser, postgresPassword), DB_MIGRATION_PATH);
-        new Main(discordBot, webAPI, dbMigrator).run();
-    }
-
-    public void run() {
-        logger.info("Starting services...");
-        try (var executor = Executors.newFixedThreadPool(2)) {
-            executor.submit(dbMigrator).get(); // Waiting for migrations
-            executor.submit(discordBot);
-            executor.submit(webAPI);
-        } catch (ExecutionException | InterruptedException e) {
-            throw new RuntimeException(e);
-        }
+        discordBot.run();
     }
 }

bot/src/main/java/de/hhhammer/dchat/bot/DiscordBot.java

@@ -1,11 +1,11 @@
-package de.hhhammer.dchat;
+package de.hhhammer.dchat.bot;
 
+import de.hhhammer.dchat.bot.discord.MessageCreateHandler;
+import de.hhhammer.dchat.bot.discord.ServerMessageHandler;
+import de.hhhammer.dchat.bot.discord.UserMessageHandler;
+import de.hhhammer.dchat.bot.openai.ChatGPTService;
 import de.hhhammer.dchat.db.ServerDBService;
 import de.hhhammer.dchat.db.UserDBService;
-import de.hhhammer.dchat.discord.MessageCreateHandler;
-import de.hhhammer.dchat.discord.ServerMessageHandler;
-import de.hhhammer.dchat.discord.UserMessageHandler;
-import de.hhhammer.dchat.openai.ChatGPTService;
 import org.javacord.api.DiscordApi;
 import org.javacord.api.DiscordApiBuilder;
 import org.javacord.api.interaction.SlashCommand;

bot/src/main/java/de/hhhammer/dchat/bot/discord/MessageCreateHandler.java

@@ -1,4 +1,4 @@
-package de.hhhammer.dchat.discord;
+package de.hhhammer.dchat.bot.discord;
 
 import org.javacord.api.entity.message.MessageType;
 import org.javacord.api.event.message.MessageCreateEvent;

bot/src/main/java/de/hhhammer/dchat/bot/discord/MessageHandler.java

@@ -1,4 +1,4 @@
-package de.hhhammer.dchat.discord;
+package de.hhhammer.dchat.bot.discord;
 
 import org.javacord.api.event.message.MessageCreateEvent;
 

bot/src/main/java/de/hhhammer/dchat/bot/discord/ServerMessageHandler.java

@@ -1,10 +1,10 @@
-package de.hhhammer.dchat.discord;
+package de.hhhammer.dchat.bot.discord;
 
+import de.hhhammer.dchat.bot.openai.ChatGPTRequestBuilder;
+import de.hhhammer.dchat.bot.openai.ChatGPTService;
+import de.hhhammer.dchat.bot.openai.ResponseException;
 import de.hhhammer.dchat.db.ServerDBService;
 import de.hhhammer.dchat.db.models.server.ServerMessage;
-import de.hhhammer.dchat.openai.ChatGPTRequestBuilder;
-import de.hhhammer.dchat.openai.ChatGPTService;
-import de.hhhammer.dchat.openai.ResponseException;
 import org.javacord.api.entity.DiscordEntity;
 import org.javacord.api.entity.message.Message;
 import org.javacord.api.entity.message.MessageReference;

bot/src/main/java/de/hhhammer/dchat/bot/discord/UserMessageHandler.java

@@ -1,10 +1,10 @@
-package de.hhhammer.dchat.discord;
+package de.hhhammer.dchat.bot.discord;
 
 import de.hhhammer.dchat.db.UserDBService;
 import de.hhhammer.dchat.db.models.user.UserMessage;
-import de.hhhammer.dchat.openai.ChatGPTRequestBuilder;
-import de.hhhammer.dchat.openai.ChatGPTService;
-import de.hhhammer.dchat.openai.ResponseException;
+import de.hhhammer.dchat.bot.openai.ChatGPTRequestBuilder;
+import de.hhhammer.dchat.bot.openai.ChatGPTService;
+import de.hhhammer.dchat.bot.openai.ResponseException;
 import org.javacord.api.event.message.MessageCreateEvent;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;

bot/src/main/java/de/hhhammer/dchat/bot/openai/ChatGPTRequestBuilder.java

@@ -1,7 +1,6 @@
-package de.hhhammer.dchat.openai;
-
-import de.hhhammer.dchat.openai.models.ChatGPTRequest;
+package de.hhhammer.dchat.bot.openai;
 
+import de.hhhammer.dchat.bot.openai.models.ChatGPTRequest;
 import java.util.ArrayList;
 import java.util.List;
 

bot/src/main/java/de/hhhammer/dchat/bot/openai/ChatGPTService.java

@@ -1,8 +1,8 @@
-package de.hhhammer.dchat.openai;
+package de.hhhammer.dchat.bot.openai;
 
 import com.fasterxml.jackson.databind.ObjectMapper;
-import de.hhhammer.dchat.openai.models.ChatGPTRequest;
-import de.hhhammer.dchat.openai.models.ChatGPTResponse;
+import de.hhhammer.dchat.bot.openai.models.ChatGPTRequest;
+import de.hhhammer.dchat.bot.openai.models.ChatGPTResponse;
 
 import java.io.IOException;
 import java.net.URI;

bot/src/main/java/de/hhhammer/dchat/bot/openai/ResponseException.java

@@ -1,4 +1,4 @@
-package de.hhhammer.dchat.openai;
+package de.hhhammer.dchat.bot.openai;
 
 public class ResponseException extends Exception {
     public ResponseException(String message) {

bot/src/main/java/de/hhhammer/dchat/bot/openai/models/ChatGPTRequest.java

@@ -1,4 +1,4 @@
-package de.hhhammer.dchat.openai.models;
+package de.hhhammer.dchat.bot.openai.models;
 
 import java.util.List;
 

bot/src/main/java/de/hhhammer/dchat/bot/openai/models/ChatGPTResponse.java

@@ -1,4 +1,4 @@
-package de.hhhammer.dchat.openai.models;
+package de.hhhammer.dchat.bot.openai.models;
 
 import com.fasterxml.jackson.annotation.JsonProperty;
 

bot/src/main/resources/logback.xml

@@ -0,0 +1,13 @@
+<configuration>
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
+        </encoder>
+    </appender>
+
+    <logger name="de.hhhammer.dchat" level="DEBUG"/>
+
+    <root level="INFO">
+        <appender-ref ref="STDOUT"/>
+    </root>
+</configuration>

build.sh

@@ -1,31 +1,56 @@
 #!/usr/bin/env bash
 
-REPO="git.hhhammer.de/hamburghammer/dchat"
 AUTHORS="Augusto Dwenger J. <dwenger@posteo.de>"
 URL="https://${REPO}"
 VENDOR="hamburghammer"
 TITLE="dchat"
 DESCRIPTION="A Discord bot to chat with ChatGPT from OpenAI"
-CREATED=$(date -u +"%Y-%m-%dT%H:%M:%SZ")
-REVISION=$(git rev-parse HEAD)
 
-IMAGE_LATEST="${REPO}:latest"
 
-# shellcheck disable=SC2086
-podman build \
-        $DOCKER_BUILD_ARGS \
-        -t $IMAGE_LATEST \
-        --label "org.opencontainers.image.revision=${REVISION}" \
-        --label "org.opencontainers.image.version=${TAG}" \
-        --label "org.opencontainers.image.authors=${AUTHORS}" \
-        --label "org.opencontainers.image.created=${CREATED}" \
-        --label "org.opencontainers.image.source=${URL}" \
-        --label "org.opencontainers.image.vendor=${VENDOR}" \
-        --label "org.opencontainers.image.title=${TITLE}" \
-        --label "org.opencontainers.image.description=${DESCRIPTION}" \
-        . || exit $?
+build() {
+  CREATED=$(date -u +"%Y-%m-%dT%H:%M:%SZ")
+  REVISION=$(git rev-parse HEAD)
 
-if [ "$PUSH_LATEST" == "1" ]; then
-  podman push "${IMAGE_LATEST}"
-fi
+  IMAGE_LATEST="${REPO}:latest"
+  # shellcheck disable=SC2086
+  podman build \
+    $DOCKER_BUILD_ARGS \
+    -t $IMAGE_LATEST \
+    --label "org.opencontainers.image.revision=${REVISION}" \
+    --label "org.opencontainers.image.version=${TAG}" \
+    --label "org.opencontainers.image.authors=${AUTHORS}" \
+    --label "org.opencontainers.image.created=${CREATED}" \
+    --label "org.opencontainers.image.source=${URL}" \
+    --label "org.opencontainers.image.vendor=${VENDOR}" \
+    --label "org.opencontainers.image.title=${TITLE}" \
+    --label "org.opencontainers.image.description=${DESCRIPTION}" \
+    .. || exit $?
 
+  if [ "$PUSH_LATEST" == "1" ]; then
+    podman push "${IMAGE_LATEST}"
+  fi
+}
+
+echo "start building bot"
+cd "./bot" || exit 1
+REPO="git.hhhammer.de/hamburghammer/dchat/bot"
+TITLE="dchat-bot"
+DESCRIPTION="A Discord bot to chat with ChatGPT from OpenAI"
+build
+cd ..
+
+echo "start building web"
+cd "./web" || exit 1
+REPO="git.hhhammer.de/hamburghammer/dchat/web"
+TITLE="dchat-web"
+DESCRIPTION="A web API and UI for the dchat-bot configuration"
+build
+cd ..
+
+echo "start building migration"
+cd "./migration" || exit 1
+REPO="git.hhhammer.de/hamburghammer/dchat/migration"
+TITLE="dchat-migration"
+DESCRIPTION="A migration tool for the dchat database"
+build
+cd ..

db/pom.xml

@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <artifactId>dchat</artifactId>
+        <groupId>de.hhhammer.dchat</groupId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
+
+    <artifactId>db</artifactId>
+    <version>1.0-SNAPSHOT</version>
+    <name>db</name>
+
+    <dependencies>
+        <!-- https://mvnrepository.com/artifact/org.postgresql/postgresql -->
+        <dependency>
+            <groupId>org.postgresql</groupId>
+            <artifactId>postgresql</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.fasterxml.jackson.core</groupId>
+            <artifactId>jackson-databind</artifactId>
+            <version>2.15.0-rc2</version>
+        </dependency>
+    </dependencies>
+
+    <build>
+
+    </build>
+</project>

docker-compose.yml

@@ -2,8 +2,8 @@ version: "3"
 
 services:
   bot:
-    image: git.hhhammer.de/hamburghammer/dchat:latest
-    build: .
+    image: git.hhhammer.de/hamburghammer/dchat/bot:latest
+    build: ./bot/
     restart: unless-stopped
     depends_on:
       - db
@@ -13,8 +13,30 @@ services:
       - POSTGRES_USER=<postgres-user>
       - POSTGRES_PASSWORD=<postgres-password>
       - POSTGRES_URL=jdbc:postgresql://db:5432/dchat
-      - API_PORT=8080
       - JDK_JAVA_OPTIONS="--enable-preview"
+
+  web:
+    image: git.hhhammer.de/hamburghammer/dchat/web:latest
+    build: ./web/
+    restart: unless-stopped
+    depends_on:
+      - db
+    environment:
+      - POSTGRES_USER=<postgres-user>
+      - POSTGRES_PASSWORD=<postgres-password>
+      - POSTGRES_URL=jdbc:postgresql://db:5432/dchat
+      - JDK_JAVA_OPTIONS="--enable-preview"
+
+  migration:
+    image: git.hhhammer.de/hamburghammer/dchat/migration:latest
+    build: ./migration/
+    depends_on:
+      - db
+    environment:
+      - POSTGRES_USER=<postgres-user>
+      - POSTGRES_PASSWORD=<postgres-password>
+      - POSTGRES_URL=jdbc:postgresql://db:5432/dchat
+
   db:
     image: docker.io/postgres:15-alpine
     restart: unless-stopped

migration/pom.xml

@@ -0,0 +1,60 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <parent>
+    <artifactId>dchat</artifactId>
+    <groupId>de.hhhammer.dchat</groupId>
+    <version>1.0-SNAPSHOT</version>
+  </parent>
+
+  <artifactId>migration</artifactId>
+  <version>1.0-SNAPSHOT</version>
+
+  <name>migration</name>
+
+  <dependencies>
+    <dependency>
+      <groupId>org.postgresql</groupId>
+      <artifactId>postgresql</artifactId>
+    </dependency>
+  </dependencies>
+
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-shade-plugin</artifactId>
+        <configuration>
+          <shadedArtifactAttached>true</shadedArtifactAttached>
+          <shadedClassifierName>fat</shadedClassifierName>
+          <transformers>
+            <transformer
+                    implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
+              <manifestEntries>
+                <Main-Class>de.hhhammer.dchat.migration.App</Main-Class>
+              </manifestEntries>
+            </transformer>
+          </transformers>
+          <filters>
+            <filter>
+              <artifact>*:*</artifact>
+              <excludes>
+                <exclude>META-INF/*.SF</exclude>
+                <exclude>META-INF/*.DSA</exclude>
+                <exclude>META-INF/*.RSA</exclude>
+              </excludes>
+            </filter>
+          </filters>
+        </configuration>
+        <executions>
+          <execution>
+            <phase>package</phase>
+            <goals>
+              <goal>shade</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
+</project>

migration/src/main/java/de/hhhammer/dchat/migration/App.java

@@ -0,0 +1,25 @@
+package de.hhhammer.dchat.migration;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Hello world!
+ */
+public class App {
+    private static final Logger logger = LoggerFactory.getLogger(App.class);
+    private static final String DB_MIGRATION_PATH = "db/schema.sql";
+
+    public static void main(String[] args) {
+        String postgresUser = System.getenv("POSTGRES_USER");
+        String postgresPassword = System.getenv("POSTGRES_PASSWORD");
+        String postgresUrl = System.getenv("POSTGRES_URL");
+        if (postgresUser == null || postgresPassword == null || postgresUrl == null) {
+            logger.error("Missing environment variables: POSTGRES_USER and/or POSTGRES_PASSWORD and/or POSTGRES_URL");
+            System.exit(1);
+        }
+        var migrationExecutor = new MigrationExecutor(postgresUrl, postgresUser, postgresPassword);
+        var dbMigrator = new DBMigrator(migrationExecutor, DB_MIGRATION_PATH);
+        dbMigrator.run();
+    }
+}

migration/src/main/java/de/hhhammer/dchat/migration/DBMigrator.java

@@ -1,7 +1,5 @@
-package de.hhhammer.dchat;
+package de.hhhammer.dchat.migration;
 
-import de.hhhammer.dchat.migration.DBMigrationException;
-import de.hhhammer.dchat.migration.MigrationExecutor;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 

migration/src/main/resources/logback.xml

@@ -0,0 +1,13 @@
+<configuration>
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
+        </encoder>
+    </appender>
+
+    <logger name="de.hhhammer.dchat" level="DEBUG"/>
+
+    <root level="INFO">
+        <appender-ref ref="STDOUT"/>
+    </root>
+</configuration>

pom.xml

@@ -7,6 +7,9 @@
     <groupId>de.hhhammer.dchat</groupId>
     <artifactId>dchat</artifactId>
     <version>1.0-SNAPSHOT</version>
+    <!-- FIXME change it to the project's website -->
+    <url>http://www.example.com</url>
+    <packaging>pom</packaging>
 
     <properties>
         <maven.compiler.source>19</maven.compiler.source>
@@ -14,105 +17,111 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>
 
+
+    <!-- logging -->
     <dependencies>
-        <dependency>
-            <groupId>org.javacord</groupId>
-            <artifactId>javacord</artifactId>
-            <version>3.8.0</version>
-            <type>pom</type>
-        </dependency>
-        <dependency>
-            <groupId>com.fasterxml.jackson.core</groupId>
-            <artifactId>jackson-databind</artifactId>
-            <version>2.15.0-rc2</version>
-        </dependency>
-        <dependency>
-            <groupId>com.fasterxml.jackson.datatype</groupId>
-            <artifactId>jackson-datatype-jsr310</artifactId>
-            <version>2.14.2</version>
-        </dependency>
-        <!-- https://mvnrepository.com/artifact/org.postgresql/postgresql -->
-        <dependency>
-            <groupId>org.postgresql</groupId>
-            <artifactId>postgresql</artifactId>
-            <version>42.6.0</version>
-        </dependency>
-        <dependency>
-            <groupId>io.javalin</groupId>
-            <artifactId>javalin</artifactId>
-            <version>5.5.0</version>
-        </dependency>
-        <!-- logging -->
-        <dependency>
-            <groupId>org.apache.logging.log4j</groupId>
-            <artifactId>log4j-to-slf4j</artifactId>
-            <version>2.20.0</version>
-        </dependency>
         <dependency>
             <groupId>org.slf4j</groupId>
             <artifactId>slf4j-api</artifactId>
-            <version>2.0.7</version>
         </dependency>
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-classic</artifactId>
-            <version>1.4.6</version>
         </dependency>
         <dependency>
             <groupId>org.jetbrains</groupId>
             <artifactId>annotations</artifactId>
-            <version>24.0.1</version>
         </dependency>
     </dependencies>
 
-    <build>
-        <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.11.0</version>
-                <configuration>
-                    <compilerArgs>
-                        <compilerArg>--enable-preview</compilerArg>
-                    </compilerArgs>
-                </configuration>
-            </plugin>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-shade-plugin</artifactId>
-                <version>3.2.3</version>
-                <configuration>
-                    <shadedArtifactAttached>true</shadedArtifactAttached>
-                    <shadedClassifierName>fat</shadedClassifierName>
-                    <transformers>
-                        <transformer
-                                implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
-                            <manifestEntries>
-                                <Main-Class>de.hhhammer.dchat.Main</Main-Class>
-                            </manifestEntries>
-                        </transformer>
-                    </transformers>
-                    <filters>
-                        <filter>
-                            <artifact>*:*</artifact>
-                            <excludes>
-                                <exclude>META-INF/*.SF</exclude>
-                                <exclude>META-INF/*.DSA</exclude>
-                                <exclude>META-INF/*.RSA</exclude>
-                            </excludes>
-                        </filter>
-                    </filters>
-                </configuration>
-                <executions>
-                    <execution>
-                        <phase>package</phase>
-                        <goals>
-                            <goal>shade</goal>
-                        </goals>
-                    </execution>
-                </executions>
-            </plugin>
-        </plugins>
-    </build>
 
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.slf4j</groupId>
+                <artifactId>slf4j-api</artifactId>
+                <version>2.0.7</version>
+            </dependency>
+            <dependency>
+                <groupId>ch.qos.logback</groupId>
+                <artifactId>logback-classic</artifactId>
+                <version>1.4.6</version>
+                <scope>runtime</scope>
+            </dependency>
+            <dependency>
+                <groupId>org.jetbrains</groupId>
+                <artifactId>annotations</artifactId>
+                <version>24.0.1</version>
+                <scope>provided</scope>
+            </dependency>
+            <dependency>
+                <groupId>org.postgresql</groupId>
+                <artifactId>postgresql</artifactId>
+                <version>42.6.0</version>
+                <scope>runtime</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+    <build>
+        <pluginManagement>
+            <!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
+            <plugins>
+                <plugin>
+                    <groupId>com.google.cloud.tools</groupId>
+                    <artifactId>jib-maven-plugin</artifactId>
+                    <version>3.3.2</version>
+                </plugin>
+
+                <!-- clean lifecycle, see https://maven.apache.org/ref/current/maven-core/lifecycles.html#clean_Lifecycle -->
+                <plugin>
+                    <artifactId>maven-clean-plugin</artifactId>
+                    <version>3.1.0</version>
+                </plugin>
+                <!-- default lifecycle, jar packaging: see https://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_jar_packaging -->
+                <plugin>
+                    <artifactId>maven-resources-plugin</artifactId>
+                    <version>3.0.2</version>
+                </plugin>
+                <plugin>
+                    <artifactId>maven-compiler-plugin</artifactId>
+                    <version>3.11.0</version>
+                </plugin>
+                <plugin>
+                    <artifactId>maven-surefire-plugin</artifactId>
+                    <version>2.22.1</version>
+                </plugin>
+                <plugin>
+                    <artifactId>maven-jar-plugin</artifactId>
+                    <version>3.0.2</version>
+                </plugin>
+                <plugin>
+                    <artifactId>maven-install-plugin</artifactId>
+                    <version>2.5.2</version>
+                </plugin>
+                <plugin>
+                    <artifactId>maven-deploy-plugin</artifactId>
+                    <version>2.8.2</version>
+                </plugin>
+                <!-- site lifecycle, see https://maven.apache.org/ref/current/maven-core/lifecycles.html#site_Lifecycle -->
+                <plugin>
+                    <artifactId>maven-site-plugin</artifactId>
+                    <version>3.7.1</version>
+                </plugin>
+                <plugin>
+                    <artifactId>maven-project-info-reports-plugin</artifactId>
+                    <version>3.0.0</version>
+                </plugin>
+                <plugin>
+                    <artifactId>maven-shade-plugin</artifactId>
+                    <version>3.2.3</version>
+                </plugin>
+            </plugins>
+        </pluginManagement>
+    </build>
+    <modules>
+        <module>bot</module>
+        <module>db</module>
+        <module>web</module>
+        <module>migration</module>
+    </modules>
 </project>

web/pom.xml

@@ -0,0 +1,155 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <artifactId>dchat</artifactId>
+        <groupId>de.hhhammer.dchat</groupId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
+
+    <artifactId>web</artifactId>
+    <version>1.0-SNAPSHOT</version>
+    <name>web</name>
+
+    <properties>
+        <node.version>v18.16.0</node.version>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>de.hhhammer.dchat</groupId>
+            <artifactId>db</artifactId>
+            <version>1.0-SNAPSHOT</version>
+        </dependency>
+        <dependency>
+            <groupId>io.javalin</groupId>
+            <artifactId>javalin</artifactId>
+            <version>5.5.0</version>
+        </dependency>
+        <dependency>
+            <groupId>com.fasterxml.jackson.core</groupId>
+            <artifactId>jackson-databind</artifactId>
+            <version>2.15.0-rc2</version>
+        </dependency>
+        <dependency>
+            <groupId>com.fasterxml.jackson.datatype</groupId>
+            <artifactId>jackson-datatype-jsr310</artifactId>
+            <version>2.14.2</version>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <configuration>
+                    <compilerArgs>
+                        <compilerArg>--enable-preview</compilerArg>
+                    </compilerArgs>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-shade-plugin</artifactId>
+                <configuration>
+                    <shadedArtifactAttached>true</shadedArtifactAttached>
+                    <shadedClassifierName>fat</shadedClassifierName>
+                    <transformers>
+                        <transformer
+                                implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
+                            <manifestEntries>
+                                <Main-Class>de.hhhammer.dchat.web.App</Main-Class>
+                            </manifestEntries>
+                        </transformer>
+                    </transformers>
+                    <filters>
+                        <filter>
+                            <artifact>*:*</artifact>
+                            <excludes>
+                                <exclude>META-INF/*.SF</exclude>
+                                <exclude>META-INF/*.DSA</exclude>
+                                <exclude>META-INF/*.RSA</exclude>
+                            </excludes>
+                        </filter>
+                    </filters>
+                </configuration>
+                <executions>
+                    <execution>
+                        <phase>package</phase>
+                        <goals>
+                            <goal>shade</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+            <plugin>
+                <groupId>com.github.eirslett</groupId>
+                <artifactId>frontend-maven-plugin</artifactId>
+                <version>1.9.1</version>
+                <configuration>
+                    <nodeVersion>${node.version}</nodeVersion>
+                    <workingDirectory>src/ui</workingDirectory>
+                </configuration>
+                <executions>
+                    <execution>
+                        <id>Install node and npm</id>
+                        <goals>
+                            <goal>install-node-and-npm</goal>
+                        </goals>
+                        <phase>generate-resources</phase>
+                        <configuration>
+                            <nodeVersion>${node.version}</nodeVersion>
+                            <npmVersion>${npm.version}</npmVersion>
+                        </configuration>
+                    </execution>
+
+                    <execution>
+                        <id>npm install</id>
+                        <goals>
+                            <goal>npm</goal>
+                        </goals>
+                        <phase>generate-resources</phase>
+                        <configuration>
+                            <arguments>install</arguments>
+                        </configuration>
+                    </execution>
+
+                    <execution>
+                        <id>npm build</id>
+                        <goals>
+                            <goal>npm</goal>
+                        </goals>
+                        <phase>generate-resources</phase>
+                        <configuration>
+                            <arguments>run build-only</arguments>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-resources-plugin</artifactId>
+                <executions>
+                    <execution>
+                        <id>Copy Vue frontend into target static folder</id>
+                        <phase>process-resources</phase>
+                        <goals>
+                            <goal>copy-resources</goal>
+                        </goals>
+                        <configuration>
+                            <outputDirectory>target/classes/ui</outputDirectory>
+                            <resources>
+                                <resource>
+                                    <directory>src/ui/dist</directory>
+                                    <filtering>true</filtering>
+                                </resource>
+                            </resources>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+</project>

web/src/main/java/de/hhhammer/dchat/web/App.java

@@ -0,0 +1,37 @@
+package de.hhhammer.dchat.web;
+
+import de.hhhammer.dchat.db.ServerDBService;
+import de.hhhammer.dchat.db.UserDBService;
+import io.javalin.Javalin;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Hello world!
+ */
+public class App {
+    private static final Logger logger = LoggerFactory.getLogger(App.class);
+
+    public static void main(String[] args) {
+        String postgresUser = System.getenv("POSTGRES_USER");
+        String postgresPassword = System.getenv("POSTGRES_PASSWORD");
+        String postgresUrl = System.getenv("POSTGRES_URL");
+        if (postgresUser == null || postgresPassword == null || postgresUrl == null) {
+            logger.error("Missing environment variables: POSTGRES_USER and/or POSTGRES_PASSWORD and/or POSTGRES_URL");
+            System.exit(1);
+        }
+
+        var serverDBService = new ServerDBService(postgresUrl, postgresUser, postgresPassword);
+        var userDBService = new UserDBService(postgresUrl, postgresUser, postgresPassword);
+
+        String apiPortStr = System.getenv("API_PORT") != null ? System.getenv("API_PORT") : "8080";
+        int apiPort = Integer.parseInt(apiPortStr);
+        var uiLocation = System.getenv("UI_LOCATION");
+        if (uiLocation == null) {
+            logger.error("Missing environment variables: UI_LOCATION");
+            System.exit(1);
+        }
+        var webApi = new WebAPI(serverDBService, userDBService, uiLocation, apiPort);
+        webApi.run();
+    }
+}

web/src/main/java/de/hhhammer/dchat/web/WebAPI.java

@@ -1,4 +1,4 @@
-package de.hhhammer.dchat;
+package de.hhhammer.dchat.web;
 
 import de.hhhammer.dchat.db.ServerDBService;
 import de.hhhammer.dchat.db.UserDBService;
@@ -17,11 +17,13 @@ public class WebAPI implements Runnable {
     private static final Logger logger = LoggerFactory.getLogger(WebAPI.class);
     private final ServerDBService serverDBService;
     private final UserDBService userDBService;
+    private final String uiLocation;
     private final int port;
 
-    public WebAPI(ServerDBService serverDBService, UserDBService userDBService, int port) {
+    public WebAPI(ServerDBService serverDBService, UserDBService userDBService, String uiLocation, int port) {
         this.serverDBService = serverDBService;
         this.userDBService = userDBService;
+        this.uiLocation = uiLocation;
         this.port = port;
     }
 
@@ -35,7 +37,7 @@ public class WebAPI implements Runnable {
             config.staticFiles.add(staticFileConfig -> {
                 staticFileConfig.hostedPath = "/";
                 staticFileConfig.location = Location.EXTERNAL;
-                staticFileConfig.directory = "./ui/dist/";
+                staticFileConfig.directory = this.uiLocation;
             });
         });
         Runtime.getRuntime().addShutdownHook(new Thread(() -> {

web/src/main/resources/logback.xml

@@ -6,7 +6,6 @@
     </appender>
 
     <logger name="de.hhhammer.dchat" level="DEBUG"/>
-    <logger name="org.javacord.core" level="WARN"/>
     <logger name="io.javalin.Javalin" level="INFO"/>
 
     <root level="INFO">

web/src/ui/.gitignore

@@ -26,3 +26,5 @@ coverage
 *.njsproj
 *.sln
 *.sw?
+
+node