From b5eb5dc0b964a2026ecc43b99cb48070346fffa6 Mon Sep 17 00:00:00 2001
From: P0nk <ponkcode@gmail.com>
Date: Thu, 26 Jun 2025 15:35:26 +0200
Subject: [PATCH] Liquibase POC

---
 pom.xml                                       |  7 +++-
 .../java/database/DatabaseMigrations.java     | 35 +++++++++++++++++++
 src/main/java/net/server/Server.java          |  3 ++
 src/main/resources/db/changelog.xml           | 13 +++++++
 src/main/resources/db/test-liquibase.sql      |  4 +++
 5 files changed, 61 insertions(+), 1 deletion(-)
 create mode 100644 src/main/java/database/DatabaseMigrations.java
 create mode 100644 src/main/resources/db/changelog.xml
 create mode 100644 src/main/resources/db/test-liquibase.sql

diff --git a/pom.xml b/pom.xml
index 373713bd7e..945a417fd8 100644
--- a/pom.xml
+++ b/pom.xml
@@ -66,6 +66,7 @@
         <HikariCP.version>6.3.0</HikariCP.version> <!-- Database connection pool -->
         <mysql-connector-j.version>9.3.0</mysql-connector-j.version> <!-- MySQL JDBC driver -->
         <jdbi-version>3.49.5</jdbi-version> <!-- Convenience wrapper around JDBC -->
+        <liquibase-core.version>4.32.0</liquibase-core.version> <!-- Database migrations -->
         <junit.version>5.13.1</junit.version> <!-- Unit test -->
         <mockito.version>5.18.0</mockito.version> <!-- Unit test -->
     </properties>
@@ -98,7 +99,11 @@
             <artifactId>jdbi3-core</artifactId>
             <version>${jdbi-version}</version>
         </dependency>
-
+        <dependency>
+            <groupId>org.liquibase</groupId>
+            <artifactId>liquibase-core</artifactId>
+            <version>${liquibase-core.version}</version>
+        </dependency>
 
         <!-- Networking -->
         <dependency>
diff --git a/src/main/java/database/DatabaseMigrations.java b/src/main/java/database/DatabaseMigrations.java
new file mode 100644
index 0000000000..9033b3d689
--- /dev/null
+++ b/src/main/java/database/DatabaseMigrations.java
@@ -0,0 +1,35 @@
+package database;
+
+import liquibase.Liquibase;
+import liquibase.UpdateSummaryOutputEnum;
+import liquibase.database.jvm.JdbcConnection;
+import liquibase.exception.LiquibaseException;
+import liquibase.resource.ClassLoaderResourceAccessor;
+import tools.DatabaseConnection;
+
+import java.sql.Connection;
+import java.sql.SQLException;
+
+public class DatabaseMigrations {
+
+    public static void runDatabaseMigrations() {
+        suppressLiquibaseLogs();
+        runLiquibaseUpdate();
+    }
+
+    private static void suppressLiquibaseLogs() {
+        java.util.logging.Logger liquibaseLogger = java.util.logging.Logger.getLogger("liquibase");
+        liquibaseLogger.setLevel(java.util.logging.Level.WARNING);
+    }
+
+    private static void runLiquibaseUpdate() {
+        try (Connection connection = DatabaseConnection.getConnection()) {
+            liquibase.database.DatabaseConnection databaseConnection = new JdbcConnection(connection);
+            Liquibase liquibase = new Liquibase("db/changelog.xml", new ClassLoaderResourceAccessor(), databaseConnection);
+            liquibase.setShowSummaryOutput(UpdateSummaryOutputEnum.LOG);
+            liquibase.update();
+        } catch (SQLException | LiquibaseException e) {
+            throw new RuntimeException("Failed to run database migrations", e);
+        }
+    }
+}
diff --git a/src/main/java/net/server/Server.java b/src/main/java/net/server/Server.java
index 1b0159d2cc..6c61e5ce2a 100644
--- a/src/main/java/net/server/Server.java
+++ b/src/main/java/net/server/Server.java
@@ -36,6 +36,7 @@ import constants.game.GameConstants;
 import constants.inventory.ItemConstants;
 import constants.net.OpcodeConstants;
 import constants.net.ServerConstants;
+import database.DatabaseMigrations;
 import database.note.NoteDao;
 import net.ChannelDependencies;
 import net.PacketProcessor;
@@ -869,6 +870,8 @@ public class Server {
             throw new IllegalStateException("Failed to initiate a connection to the database");
         }
 
+        DatabaseMigrations.runDatabaseMigrations();
+
         channelDependencies = registerChannelDependencies();
 
         final ExecutorService initExecutor = Executors.newFixedThreadPool(10);
diff --git a/src/main/resources/db/changelog.xml b/src/main/resources/db/changelog.xml
new file mode 100644
index 0000000000..a1f0567ef1
--- /dev/null
+++ b/src/main/resources/db/changelog.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<databaseChangeLog
+        xmlns="http://www.liquibase.org/xml/ns/dbchangelog"
+        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+        xsi:schemaLocation="
+        http://www.liquibase.org/xml/ns/dbchangelog
+        http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-4.3.xsd">
+
+    <changeSet id="1" author="Ponk">
+        <sqlFile path="db/test-liquibase.sql"/>
+    </changeSet>
+
+</databaseChangeLog>
\ No newline at end of file
diff --git a/src/main/resources/db/test-liquibase.sql b/src/main/resources/db/test-liquibase.sql
new file mode 100644
index 0000000000..f6e0582883
--- /dev/null
+++ b/src/main/resources/db/test-liquibase.sql
@@ -0,0 +1,4 @@
+CREATE TABLE test_liquibase
+(
+    id INT NOT NULL
+);
\ No newline at end of file