Add nickname retrieval support: implemented NicknameMapper for database queries, updated ChatService to return player names with optional nicknames, and extended /chat/player/{uuid}/name API endpoint.

database/src/main/java/com/alttd/altitudeweb/database/chat/NicknameMapper.java

@@ -0,0 +1,15 @@
+package com.alttd.altitudeweb.database.chat;
+
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+
+import java.util.Optional;
+
+public interface NicknameMapper {
+    @Select("""
+            SELECT nickname
+            FROM nicknames
+            WHERE uuid = #{uuid}
+            """)
+    Optional<String> getNicknameFromUUID(@Param("uuid") String uuid);
+}

database/src/main/java/com/alttd/altitudeweb/setup/Connection.java

@@ -144,6 +144,26 @@ public class Connection {
         }).start();
     }
 
+    public <T> T runQueryWithResult(QueryFunction<T> function) {
+        if (sqlSessionFactory == null) {
+            sqlSessionFactory = createSqlSessionFactory(settings, addMappers);
+        }
+
+        try (SqlSession session = sqlSessionFactory.openSession()) {
+            T result = function.apply(session);
+            session.commit();
+            return result;
+        } catch (Exception e) {
+            log.error("Failed to run query", e);
+            throw e;
+        }
+    }
+
+    @FunctionalInterface
+    public interface QueryFunction<T> {
+        T apply(SqlSession session);
+    }
+
     private SqlSessionFactory createSqlSessionFactory(DatabaseSettings settings, AddMappers addMappers) {
         try {
             Configuration configuration = getConfiguration(settings);

database/src/main/java/com/alttd/altitudeweb/setup/InitializeChat.java

@@ -2,6 +2,7 @@ package com.alttd.altitudeweb.setup;
 
 import com.alttd.altitudeweb.database.Databases;
 import com.alttd.altitudeweb.database.chat.ChatLogMapper;
+import com.alttd.altitudeweb.database.chat.NicknameMapper;
 import com.alttd.altitudeweb.database.votingplugin.VotingPluginUsersMapper;
 import lombok.extern.slf4j.Slf4j;
 
@@ -12,6 +13,7 @@ public class InitializeChat {
         log.info("Initializing Chat");
         Connection.getConnection(Databases.CHAT, (configuration) -> {
             configuration.addMapper(ChatLogMapper.class);
+            configuration.addMapper(NicknameMapper.class);
         }).join();
         log.debug("Initialized Chat");
     }