Changed upgrading to require points and use tracks

src/main/java/com/alttd/fishingevent/fish/Fish.java

@@ -1,21 +1,35 @@
 package com.alttd.fishingevent.fish;
 
+import com.alttd.fishingevent.FishingEvent;
 import com.alttd.fishingevent.config.Config;
 import com.alttd.fishingevent.config.Fishes;
 import com.alttd.fishingevent.objects.Rarity;
+import com.alttd.fishingevent.util.Logger;
 import net.kyori.adventure.text.Component;
 import net.kyori.adventure.text.minimessage.MiniMessage;
 import net.kyori.adventure.text.minimessage.tag.resolver.Placeholder;
 import net.kyori.adventure.text.minimessage.tag.resolver.TagResolver;
+import org.bukkit.NamespacedKey;
 import org.bukkit.entity.Player;
 import org.bukkit.inventory.ItemStack;
 import org.bukkit.inventory.meta.ItemMeta;
+import org.bukkit.persistence.PersistentDataType;
+import org.jetbrains.annotations.NotNull;
 
 import java.util.List;
+import java.util.Optional;
 import java.util.stream.Collectors;
 
 public abstract class Fish {
 
+    protected final FishingEvent fishingEvent;
+    protected final Logger logger;
+
+    Fish(FishingEvent fishingEvent, Logger logger) {
+        this.fishingEvent = fishingEvent;
+        this.logger = logger;
+    }
+
     /**
      * Get an the fish item for a specific player
      * @param player Player to get the item for
@@ -42,7 +56,7 @@ public abstract class Fish {
 
     public abstract Rarity getRarity();
 
-    public ItemStack createItem(Player player, double length) {
+    public Optional<ItemStack> createItem(Player player, double length, int points) {
         ItemStack fishItem = getFishItem(player);
         ItemMeta itemMeta = fishItem.getItemMeta();
         TagResolver resolver = TagResolver.resolver(
@@ -53,9 +67,21 @@ public abstract class Fish {
 
         itemMeta.lore(fishLore(resolver));
         itemMeta.displayName(fishName());
+        NamespacedKey namespacedKey;
+        try {
+            namespacedKey = NamespacedKey.fromString("points", fishingEvent);
+        } catch (Exception e) {
+            logger.warning("Unable to create namespaced key for fish");
+            return Optional.empty();
+        }
+        if (namespacedKey == null) {
+            logger.warning("Created null namespaced key for fish");
+            return Optional.empty();
+        }
+        itemMeta.getPersistentDataContainer().set(namespacedKey, PersistentDataType.INTEGER, points);
 
         fishItem.setItemMeta(itemMeta);
-        return fishItem;
+        return Optional.of(fishItem);
     }
 
     /**