up

src/main/java/su/xserver/iikocon/SettingsService.java

@@ -0,0 +1,67 @@
+package su.xserver.iikocon;
+
+import io.vertx.core.Future;
+import io.vertx.core.json.JsonObject;
+import io.vertx.sqlclient.Pool;
+import io.vertx.sqlclient.templates.SqlTemplate;
+
+import java.util.Map;
+
+public class SettingsService {
+  private final Pool pool;
+
+  public SettingsService(Pool pool) { this.pool = pool; }
+
+  public Future<Void> initDatabase() {
+    String createTable = """
+        CREATE TABLE IF NOT EXISTS app_settings (
+          setting_key VARCHAR(255) PRIMARY KEY,
+          setting_value TEXT
+        )
+        """;
+    return pool.query(createTable).execute()
+      .compose(v -> setIfAbsent("site_name", "Admin Panel"))
+      .compose(v -> setIfAbsent("site_description", "Powerful administration dashboard"))
+      .compose(v -> setIfAbsent("theme", "light"))
+      .compose(v -> setIfAbsent("items_per_page", "20"))
+      .compose(v -> setIfAbsent("enable_registration", "true"))
+      .compose(v -> setIfAbsent("maintenance_mode", "false"))
+      .compose(v -> setIfAbsent("default_language", "en"))
+      .compose(v -> setIfAbsent("session_timeout_minutes", "60"))
+      .compose(v -> setIfAbsent("logo_url", "/assets/logo.png"))
+      .mapEmpty();
+  }
+
+  private Future<Void> setIfAbsent(String key, String defaultValue) {
+    return get(key).compose(existing -> {
+      if (existing == null) {
+        return set(key, defaultValue);
+      }
+      return Future.succeededFuture();
+    });
+  }
+
+  public Future<String> get(String key) {
+    return SqlTemplate.forQuery(pool, "SELECT setting_value FROM app_settings WHERE setting_key = #{key}")
+      .execute(Map.of("key", key))
+      .map(rows -> rows.iterator().hasNext() ? rows.iterator().next().getString("setting_value") : null);
+  }
+
+  public Future<Void> set(String key, String value) {
+    return SqlTemplate.forUpdate(pool,
+        "INSERT INTO app_settings (setting_key, setting_value) VALUES (#{key}, #{value}) " +
+          "ON DUPLICATE KEY UPDATE setting_value = #{value}")
+      .execute(Map.of("key", key, "value", value))
+      .mapEmpty();
+  }
+
+  public Future<JsonObject> getAll() {
+    return pool.query("SELECT setting_key, setting_value FROM app_settings")
+      .execute()
+      .map(rows -> {
+        JsonObject json = new JsonObject();
+        rows.forEach(row -> json.put(row.getString("setting_key"), row.getString("setting_value")));
+        return json;
+      });
+  }
+}