Notify client of unlocked recipies on login.

src/main/java/emu/grasscutter/game/managers/CookingManager.java

@@ -0,0 +1,78 @@
+package emu.grasscutter.game.managers;
+
+import java.util.ArrayList;
+import java.util.Dictionary;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+import emu.grasscutter.data.GameData;
+import emu.grasscutter.game.player.Player;
+import emu.grasscutter.net.proto.CookRecipeDataOuterClass;
+import emu.grasscutter.server.packet.send.PacketCookDataNotify;
+
+public class CookingManager {
+    private static Set<Integer> defaultUnlockedRecipies;
+    private final Player player;
+
+    public CookingManager(Player player) {
+        this.player = player;
+    }
+
+    public static void initialize() {
+        // Initialize the set of recipies that are unlocked by default.
+        defaultUnlockedRecipies = new HashSet<>();
+
+        for (var recipe : GameData.getCookRecipeDataMap().values()) {
+            if (recipe.isDefaultUnlocked()) {
+                defaultUnlockedRecipies.add(recipe.getId());
+            }
+        }
+    }
+
+    /********************
+     * Perform cooking.
+     ********************/
+    
+
+     /********************
+     * Notify unlocked recipies.
+     ********************/
+    private void addDefaultUnlocked() {
+        // Get recipies that are already unlocked.
+        var unlockedRecipies = this.player.getUnlockedRecipies();
+
+        // Get recipies that should be unlocked by default but aren't.
+        var additionalRecipies = new HashSet<>(defaultUnlockedRecipies);
+        additionalRecipies.removeAll(unlockedRecipies.keySet());
+
+        // Add them to the player.
+        for (int id : additionalRecipies) {
+            unlockedRecipies.put(id, 0);
+        }
+    }
+
+    public void sendCookDataNofity() {
+        // Default unlocked recipies to player if they don't have them yet.
+        this.addDefaultUnlocked();
+
+        // Get unlocked recipies.
+        var unlockedRecipies = this.player.getUnlockedRecipies();
+
+        // Construct CookRecipeData protos.
+        List<CookRecipeDataOuterClass.CookRecipeData> data = new ArrayList<>();
+        for (var recipe : unlockedRecipies.entrySet()) {
+            int recipeId = recipe.getKey();
+            int proficiency = recipe.getValue();
+
+            CookRecipeDataOuterClass.CookRecipeData proto = CookRecipeDataOuterClass.CookRecipeData.newBuilder()
+                .setRecipeId(recipeId)
+                .setProficiency(proficiency)
+                .build();
+            data.add(proto);
+        }
+
+        // Send packet.
+        this.player.sendPacket(new PacketCookDataNotify(data));
+    }
+}