Support deserializing old package stuff

bukkit/src/main/java/me.william278.husksync.bukkit.data/DataSerializer.java

@@ -0,0 +1,57 @@
+package me.william278.husksync.bukkit.data;
+
+import org.bukkit.Material;
+import org.bukkit.Statistic;
+import org.bukkit.World;
+import org.bukkit.entity.EntityType;
+
+import java.io.Serializable;
+import java.time.Instant;
+import java.util.*;
+
+/**
+ * Holds legacy data store methods for data storage
+ */
+@Deprecated
+@SuppressWarnings("DeprecatedIsStillUsed")
+public class DataSerializer {
+
+    /**
+     * A record used to store data for advancement synchronisation
+     *
+     * @deprecated Old format - Use {@link AdvancementRecordDate} instead
+     */
+    @Deprecated
+    @SuppressWarnings("DeprecatedIsStillUsed")
+    // Suppress deprecation warnings here (still used for backwards compatibility)
+    public record AdvancementRecord(String advancementKey,
+                                    ArrayList<String> awardedAdvancementCriteria) implements Serializable {
+    }
+
+    /**
+     * A record used to store data for a player's statistics
+     */
+    public record StatisticData(HashMap<Statistic, Integer> untypedStatisticValues,
+                                HashMap<Statistic, HashMap<Material, Integer>> blockStatisticValues,
+                                HashMap<Statistic, HashMap<Material, Integer>> itemStatisticValues,
+                                HashMap<Statistic, HashMap<EntityType, Integer>> entityStatisticValues) implements Serializable {
+    }
+
+    /**
+     * A record used to store data for native advancement synchronisation, tracking advancement date progress
+     */
+    public record AdvancementRecordDate(String key, Map<String, Date> criteriaMap) implements Serializable {
+        public AdvancementRecordDate(String key, List<String> criteriaList) {
+            this(key, new HashMap<>() {{
+                criteriaList.forEach(s -> put(s, Date.from(Instant.EPOCH)));
+            }});
+        }
+    }
+
+    /**
+     * A record used to store data for a player's location
+     */
+    public record PlayerLocation(double x, double y, double z, float yaw, float pitch,
+                                 String worldName, World.Environment environment) implements Serializable {
+    }
+}