Fix?

src/main/java/eu/m724/mstats/Startup.java

@@ -4,14 +4,23 @@ import eu.m724.mstats.api.service.PluginService;
 import io.quarkus.runtime.StartupEvent;
 import jakarta.enterprise.event.Observes;
 import jakarta.inject.Inject;
-import jakarta.transaction.Transactional;
+import jakarta.persistence.EntityExistsException;
 
 public class Startup {
     @Inject
     PluginService pluginService;
 
-    @Transactional
     public void onStartup(@Observes StartupEvent event) {
-        pluginService.createPlugin("ploogin");
+        try {
+            pluginService.createPlugin(1, "Tweaks724");
+        } catch (EntityExistsException e) {
+            System.out.println("exists1");
+        }
+
+        try {
+            pluginService.createPlugin(2, "Giants");
+        } catch (EntityExistsException e) {
+            System.out.println("exists2");
+        }
     }
 }

src/main/java/eu/m724/mstats/api/resource/PluginApiResource.java

@@ -63,7 +63,7 @@ public class PluginApiResource {
 
     }
 
-    class StatsResponse {
+    static class StatsResponse {
         @JsonProperty("id")
         public Long id;
 
@@ -80,7 +80,7 @@ public class PluginApiResource {
         public List<Version> pluginVersions;
     }
 
-    class Version {
+    static class Version {
         public Version(String version, int servers) {
             this.version = version;
             this.servers = servers;

src/main/java/eu/m724/mstats/api/resource/ServerApiResource.java

@@ -52,6 +52,17 @@ public class ServerApiResource {
         return Response.ok(heartbeatResponse).build();
     }
 
+    @Path("/remove")
+    @POST
+    public Response remove() {
+        if (!identity.isAnonymous()) {
+            Server server = identity.getAttribute("server");
+            serverService.removeServer(server);
+        }
+
+        return Response.ok().build();
+    }
+
     public static class HeartbeatRequest {
         /** List of registered plugins, this is sent only on boot */
         @JsonProperty("plugins")

src/main/java/eu/m724/mstats/api/service/PluginService.java

@@ -7,10 +7,11 @@ import jakarta.transaction.Transactional;
 @ApplicationScoped
 public class PluginService {
     @Transactional
-    public Plugin createPlugin(String name) {
+    public Plugin createPlugin(long id, String name) {
-        return Plugin.createPlugin(name);
+        return Plugin.createPlugin(id, name);
     }
 
+
     @Transactional
     public Plugin getPlugin(long id) {
         return Plugin.findById(id);

src/main/java/eu/m724/mstats/api/service/ServerService.java

@@ -1,11 +1,14 @@
 package eu.m724.mstats.api.service;
 
 import eu.m724.mstats.api.resource.ServerApiResource;
+import eu.m724.mstats.orm.Plugin;
 import eu.m724.mstats.orm.Server;
 import jakarta.enterprise.context.ApplicationScoped;
 import jakarta.transaction.Transactional;
 
 import java.time.Instant;
+import java.util.HashSet;
+import java.util.Set;
 
 @ApplicationScoped
 public class ServerService {
@@ -19,17 +22,30 @@ public class ServerService {
         server.persistAndFlush();
     }
 
+    @Transactional
+    public void removeServer(Server server) {
+        server.delete();
+    }
+
     @Transactional
     public void heartbeat(Server server, ServerApiResource.HeartbeatRequest heartbeatRequest) {
         server = Server.findById(server.id); // this is necessary for some reason
+        Set<Long> unknownPlugins = new HashSet<>();
 
         for (ServerApiResource.RunningPlugin plugin : heartbeatRequest.plugins) {
-            server.addPlugin(plugin.id, plugin.version);
+            Plugin p = server.addPlugin(plugin.id, plugin.version);
+            if (p == null) {
+                unknownPlugins.add(plugin.id);
+            }
         }
 
         if (heartbeatRequest.serverVersion != null)
             server.serverVersion = heartbeatRequest.serverVersion;
 
+        if (!unknownPlugins.isEmpty()) {
+            // TODO
+        }
+
         server.heartbeat = Instant.now();
         server.persistAndFlush();
     }

src/main/java/eu/m724/mstats/auth/MyHttpAuthenticationMechanism.java

@@ -41,6 +41,7 @@ public class MyHttpAuthenticationMechanism implements HttpAuthenticationMechanis
             }
 
             return QuarkusSecurityIdentity.builder()
+                    .setPrincipal(new QuarkusPrincipal("Anonymous")) // this is to fix an error in logging
                     .setAnonymous(true)
                     .build();
         }).runSubscriptionOn(Infrastructure.getDefaultWorkerPool());

src/main/java/eu/m724/mstats/orm/Plugin.java

@@ -19,8 +19,14 @@ public class Plugin extends PanacheEntity {
     public List<Server> servers = new ArrayList<>();
 
     @Transactional
-    public static Plugin createPlugin(String name) {
+    public static Plugin createPlugin(long id, String name) {
+        if (Plugin.find("name", name).firstResultOptional().isPresent()) throw new EntityExistsException();
+
         Plugin plugin = new Plugin();
+        if (id != -1) {
+            if (Plugin.findById(id) != null) throw new EntityExistsException();
+            plugin.id = id;
+        }
         plugin.name = name;
 
         plugin.persistAndFlush();

src/main/java/eu/m724/mstats/orm/Server.java

@@ -19,7 +19,7 @@ public class Server extends PanacheEntity {
     @Column(nullable = false)
     public byte[] token;
 
-    @OneToMany(cascade = CascadeType.ALL, fetch = FetchType.EAGER)
+    @ManyToMany(fetch = FetchType.EAGER)
     public List<PluginWithVersion> plugins = new ArrayList<>();
 
     public String serverVersion;
@@ -38,7 +38,7 @@ public class Server extends PanacheEntity {
             return null;
 
         if (plugins.stream().anyMatch(pwv -> pwv.plugin.id == id))
-            return null;
+            return plugin;
 
         plugins.add(new PluginWithVersion(plugin, version));
         plugin.servers.add(this);

src/main/resources/application.properties

@@ -2,5 +2,5 @@ quarkus.hibernate-orm.database.generation=update
 
 quarkus.datasource.db-kind=h2
 quarkus.datasource.username=username-default
-quarkus.datasource.jdbc.url=jdbc:h2:mem:default
+quarkus.datasource.jdbc.url=jdbc:h2:./db:default
 quarkus.datasource.jdbc.max-size=13