adjust costs and make enchants available from enchantment table

src/main/java/me/youhavetrouble/enchantio/Enchantio.java

@@ -8,6 +8,7 @@ public final class Enchantio extends JavaPlugin {
 
     @Override
     public void onEnable() {
+
         getServer().getPluginManager().registerEvents(new SoulboundListener(), this);
         getServer().getPluginManager().registerEvents(new TelepathyListener(), this);
     }

src/main/java/me/youhavetrouble/enchantio/EnchantioBootstrap.java

@@ -3,15 +3,22 @@ package me.youhavetrouble.enchantio;
 import io.papermc.paper.plugin.bootstrap.BootstrapContext;
 import io.papermc.paper.plugin.bootstrap.PluginBootstrap;
 import io.papermc.paper.plugin.bootstrap.PluginProviderContext;
+import io.papermc.paper.plugin.lifecycle.event.types.LifecycleEvents;
 import io.papermc.paper.registry.RegistryKey;
 import io.papermc.paper.registry.TypedKey;
 import io.papermc.paper.registry.event.RegistryEvents;
+import io.papermc.paper.registry.keys.tags.EnchantmentTagKeys;
+import io.papermc.paper.tag.TagEntry;
 import me.youhavetrouble.enchantio.enchants.EnchantioEnchant;
 import me.youhavetrouble.enchantio.enchants.SoulboundEnchant;
 import me.youhavetrouble.enchantio.enchants.TelepathyEnchant;
+import org.bukkit.enchantments.Enchantment;
 import org.bukkit.plugin.java.JavaPlugin;
 import org.jetbrains.annotations.NotNull;
 
+import java.util.HashSet;
+import java.util.Set;
+
 @SuppressWarnings("all")
 public class EnchantioBootstrap implements PluginBootstrap {
     @Override
@@ -36,6 +43,15 @@ public class EnchantioBootstrap implements PluginBootstrap {
             }
         }));
 
+        context.getLifecycleManager().registerEventHandler(LifecycleEvents.TAGS.preFlatten(RegistryKey.ENCHANTMENT).newHandler((event) -> {
+            Set<TagEntry<Enchantment>> enchantTags = new HashSet<>(EnchantioEnchant.getEnchants().size());
+            for (EnchantioEnchant enchant : EnchantioEnchant.getEnchants().values()) {
+                if (!enchant.canGetFromEnchantingTable()) continue;
+                enchantTags.add(enchant.getTagEntry());
+            }
+            event.registrar().addToTag(EnchantmentTagKeys.IN_ENCHANTING_TABLE, enchantTags);
+        }));
+
     }
 
     @Override

src/main/java/me/youhavetrouble/enchantio/enchants/EnchantioEnchant.java

@@ -1,9 +1,13 @@
 package me.youhavetrouble.enchantio.enchants;
 
+import io.papermc.paper.registry.RegistryKey;
+import io.papermc.paper.registry.TypedKey;
 import io.papermc.paper.registry.data.EnchantmentRegistryEntry;
 import io.papermc.paper.registry.tag.TagKey;
+import io.papermc.paper.tag.TagEntry;
 import net.kyori.adventure.key.Key;
 import net.kyori.adventure.text.Component;
+import org.bukkit.enchantments.Enchantment;
 import org.bukkit.inventory.EquipmentSlotGroup;
 import org.bukkit.inventory.ItemType;
 
@@ -27,6 +31,7 @@ public abstract class EnchantioEnchant {
     private final TagKey<ItemType> supportedItems;
     private final TagKey<ItemType> primaryItems;
     private final Set<EquipmentSlotGroup> activeSlots;
+    private final boolean canGetFromEnchantingTable;
 
     public EnchantioEnchant(
             Key key,
@@ -38,7 +43,8 @@ public abstract class EnchantioEnchant {
             EnchantmentRegistryEntry.EnchantmentCost maximumCost,
             TagKey<ItemType> primaryItems,
             TagKey<ItemType> supportedItems,
-            Set<EquipmentSlotGroup> activeSlots
+            Set<EquipmentSlotGroup> activeSlots,
+            boolean canGetFromEnchantingTable
     ) {
         this.key = key;
         this.description = description;
@@ -50,6 +56,7 @@ public abstract class EnchantioEnchant {
         this.primaryItems = primaryItems;
         this.supportedItems = supportedItems;
         this.activeSlots = activeSlots;
+        this.canGetFromEnchantingTable = canGetFromEnchantingTable;
     }
 
     public Key getKey() {
@@ -92,6 +99,14 @@ public abstract class EnchantioEnchant {
         return activeSlots;
     }
 
+    public boolean canGetFromEnchantingTable() {
+        return canGetFromEnchantingTable;
+    }
+
+    public TagEntry<Enchantment> getTagEntry() {
+        return TagEntry.valueEntry(TypedKey.create(RegistryKey.ENCHANTMENT, getKey()));
+    }
+
     protected static void registerEnchant(EnchantioEnchant enchant) {
         enchantioEnchants.put(enchant.getKey().asString(), enchant);
     }

src/main/java/me/youhavetrouble/enchantio/enchants/SoulboundEnchant.java

@@ -18,11 +18,12 @@ public class SoulboundEnchant extends EnchantioEnchant {
                 1,
                 1,
                 10,
-                EnchantmentRegistryEntry.EnchantmentCost.of(1, 1),
-                EnchantmentRegistryEntry.EnchantmentCost.of(3, 1),
+                EnchantmentRegistryEntry.EnchantmentCost.of(10, 1),
+                EnchantmentRegistryEntry.EnchantmentCost.of(30, 1),
                 ItemTypeTagKeys.ENCHANTABLE_ARMOR,
                 ItemTypeTagKeys.ENCHANTABLE_ARMOR,
-                Set.of(EquipmentSlotGroup.ANY)
+                Set.of(EquipmentSlotGroup.ANY),
+                true
         );
         registerEnchant(this);
     }

src/main/java/me/youhavetrouble/enchantio/enchants/TelepathyEnchant.java

@@ -19,11 +19,12 @@ public class TelepathyEnchant extends EnchantioEnchant {
                 1,
                 1,
                 4,
-                EnchantmentRegistryEntry.EnchantmentCost.of(1, 1),
-                EnchantmentRegistryEntry.EnchantmentCost.of(3, 1),
+                EnchantmentRegistryEntry.EnchantmentCost.of(15, 1),
+                EnchantmentRegistryEntry.EnchantmentCost.of(30, 1),
                 ItemTypeTagKeys.ENCHANTABLE_MINING,
                 ItemTypeTagKeys.ENCHANTABLE_MINING,
-                Set.of(EquipmentSlotGroup.ANY)
+                Set.of(EquipmentSlotGroup.ANY),
+                true
         );
         registerEnchant(this);
     }