Patched incorrect register dates on Nukkit

Affects issues:
- #1320

Plan/common/src/main/java/com/djrapitops/plan/storage/database/SQLDB.java

@@ -169,7 +169,8 @@ public abstract class SQLDB extends AbstractDatabase {
                 new ExtensionShowInPlayersTablePatch(),
                 new ExtensionTableRowValueLengthPatch(),
                 new CommandUsageTableRemovalPatch(),
-                new RegisterDateMinimizationPatch()
+                new RegisterDateMinimizationPatch(),
+                new BadNukkitRegisterValuePatch()
         };
     }
 

Plan/common/src/main/java/com/djrapitops/plan/storage/database/transactions/patches/BadNukkitRegisterValuePatch.java

@@ -0,0 +1,69 @@
+/*
+ *  This file is part of Player Analytics (Plan).
+ *
+ *  Plan is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU Lesser General Public License v3 as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  Plan is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public License
+ *  along with Plan. If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.djrapitops.plan.storage.database.transactions.patches;
+
+import com.djrapitops.plan.storage.database.queries.HasMoreThanZeroQueryStatement;
+import com.djrapitops.plan.storage.database.sql.tables.UserInfoTable;
+import com.djrapitops.plan.storage.database.sql.tables.UsersTable;
+import com.djrapitops.plan.storage.database.transactions.ExecStatement;
+
+import java.sql.PreparedStatement;
+import java.sql.SQLException;
+
+import static com.djrapitops.plan.storage.database.sql.building.Sql.*;
+
+/**
+ * Patch to fix incorrect register dates for nukkit.
+ * https://github.com/plan-player-analytics/Plan/issues/1320
+ *
+ * @author Rsl1122
+ */
+public class BadNukkitRegisterValuePatch extends Patch {
+
+    @Override
+    public boolean hasBeenApplied() {
+        return !hasWrongRegisterDates();
+    }
+
+    public boolean hasWrongRegisterDates() {
+        String sql = SELECT + "COUNT(*) as c" + FROM + UserInfoTable.TABLE_NAME + WHERE + UserInfoTable.REGISTERED + "<?";
+        return query(new HasMoreThanZeroQueryStatement(sql) {
+            @Override
+            public void prepare(PreparedStatement statement) throws SQLException {
+                statement.setLong(1, 20000000); // Before 20th August 1970
+            }
+        });
+    }
+
+    @Override
+    protected void applyPatch() {
+        multiplyInTable(UserInfoTable.TABLE_NAME, UserInfoTable.REGISTERED);
+        multiplyInTable(UsersTable.TABLE_NAME, UsersTable.REGISTERED);
+    }
+
+    private void multiplyInTable(String tableName, String registered) {
+        String sql = "UPDATE " + tableName + " SET " +
+                registered + "=" + registered + "*1000" +
+                WHERE + registered + "<?";
+        execute(new ExecStatement(sql) {
+            @Override
+            public void prepare(PreparedStatement statement) throws SQLException {
+                statement.setLong(1, 20000000); // Before 20th August 1970
+            }
+        });
+    }
+}