fix: mail

src/generated/main/java/emu/grasscutter/net/proto/GetAllMailNotifyOuterClass.java

@@ -0,0 +1,547 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: GetAllMailNotify.proto
+
+package emu.grasscutter.net.proto;
+
+public final class GetAllMailNotifyOuterClass {
+  private GetAllMailNotifyOuterClass() {}
+  public static void registerAllExtensions(
+      com.google.protobuf.ExtensionRegistryLite registry) {
+  }
+
+  public static void registerAllExtensions(
+      com.google.protobuf.ExtensionRegistry registry) {
+    registerAllExtensions(
+        (com.google.protobuf.ExtensionRegistryLite) registry);
+  }
+  public interface GetAllMailNotifyOrBuilder extends
+      // @@protoc_insertion_point(interface_extends:GetAllMailNotify)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     * <code>bool is_collected = 6;</code>
+     * @return The isCollected.
+     */
+    boolean getIsCollected();
+  }
+  /**
+   * <pre>
+   * Name: PFHIOOMPNBH
+   * CmdId: 1442
+   * </pre>
+   *
+   * Protobuf type {@code GetAllMailNotify}
+   */
+  public static final class GetAllMailNotify extends
+      com.google.protobuf.GeneratedMessageV3 implements
+      // @@protoc_insertion_point(message_implements:GetAllMailNotify)
+      GetAllMailNotifyOrBuilder {
+  private static final long serialVersionUID = 0L;
+    // Use GetAllMailNotify.newBuilder() to construct.
+    private GetAllMailNotify(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+      super(builder);
+    }
+    private GetAllMailNotify() {
+    }
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(
+        UnusedPrivateParameter unused) {
+      return new GetAllMailNotify();
+    }
+
+    @java.lang.Override
+    public final com.google.protobuf.UnknownFieldSet
+    getUnknownFields() {
+      return this.unknownFields;
+    }
+    private GetAllMailNotify(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      this();
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+          com.google.protobuf.UnknownFieldSet.newBuilder();
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 48: {
+
+              isCollected_ = input.readBool();
+              break;
+            }
+            default: {
+              if (!parseUnknownField(
+                  input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+          }
+        }
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.setUnfinishedMessage(this);
+      } catch (java.io.IOException e) {
+        throw new com.google.protobuf.InvalidProtocolBufferException(
+            e).setUnfinishedMessage(this);
+      } finally {
+        this.unknownFields = unknownFields.build();
+        makeExtensionsImmutable();
+      }
+    }
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.internal_static_GetAllMailNotify_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.internal_static_GetAllMailNotify_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.GetAllMailNotify.class, emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.GetAllMailNotify.Builder.class);
+    }
+
+    public static final int IS_COLLECTED_FIELD_NUMBER = 6;
+    private boolean isCollected_;
+    /**
+     * <code>bool is_collected = 6;</code>
+     * @return The isCollected.
+     */
+    @java.lang.Override
+    public boolean getIsCollected() {
+      return isCollected_;
+    }
+
+    private byte memoizedIsInitialized = -1;
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    @java.lang.Override
+    public void writeTo(com.google.protobuf.CodedOutputStream output)
+                        throws java.io.IOException {
+      if (isCollected_ != false) {
+        output.writeBool(6, isCollected_);
+      }
+      unknownFields.writeTo(output);
+    }
+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (isCollected_ != false) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeBoolSize(6, isCollected_);
+      }
+      size += unknownFields.getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+       return true;
+      }
+      if (!(obj instanceof emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.GetAllMailNotify)) {
+        return super.equals(obj);
+      }
+      emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.GetAllMailNotify other = (emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.GetAllMailNotify) obj;
+
+      if (getIsCollected()
+          != other.getIsCollected()) return false;
+      if (!unknownFields.equals(other.unknownFields)) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      hash = (37 * hash) + IS_COLLECTED_FIELD_NUMBER;
+      hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(
+          getIsCollected());
+      hash = (29 * hash) + unknownFields.hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.GetAllMailNotify parseFrom(
+        java.nio.ByteBuffer data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.GetAllMailNotify parseFrom(
+        java.nio.ByteBuffer data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.GetAllMailNotify parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.GetAllMailNotify parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.GetAllMailNotify parseFrom(byte[] data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.GetAllMailNotify parseFrom(
+        byte[] data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.GetAllMailNotify parseFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input);
+    }
+    public static emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.GetAllMailNotify parseFrom(
+        java.io.InputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input, extensionRegistry);
+    }
+    public static emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.GetAllMailNotify parseDelimitedFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseDelimitedWithIOException(PARSER, input);
+    }
+    public static emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.GetAllMailNotify parseDelimitedFrom(
+        java.io.InputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+    }
+    public static emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.GetAllMailNotify parseFrom(
+        com.google.protobuf.CodedInputStream input)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input);
+    }
+    public static emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.GetAllMailNotify parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input, extensionRegistry);
+    }
+
+    @java.lang.Override
+    public Builder newBuilderForType() { return newBuilder(); }
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+    public static Builder newBuilder(emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.GetAllMailNotify prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE
+          ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     * <pre>
+     * Name: PFHIOOMPNBH
+     * CmdId: 1442
+     * </pre>
+     *
+     * Protobuf type {@code GetAllMailNotify}
+     */
+    public static final class Builder extends
+        com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+        // @@protoc_insertion_point(builder_implements:GetAllMailNotify)
+        emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.GetAllMailNotifyOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor
+          getDescriptor() {
+        return emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.internal_static_GetAllMailNotify_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.internal_static_GetAllMailNotify_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.GetAllMailNotify.class, emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.GetAllMailNotify.Builder.class);
+      }
+
+      // Construct using emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.GetAllMailNotify.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+
+      private Builder(
+          com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessageV3
+                .alwaysUseFieldBuilders) {
+        }
+      }
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        isCollected_ = false;
+
+        return this;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor
+          getDescriptorForType() {
+        return emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.internal_static_GetAllMailNotify_descriptor;
+      }
+
+      @java.lang.Override
+      public emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.GetAllMailNotify getDefaultInstanceForType() {
+        return emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.GetAllMailNotify.getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.GetAllMailNotify build() {
+        emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.GetAllMailNotify result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      @java.lang.Override
+      public emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.GetAllMailNotify buildPartial() {
+        emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.GetAllMailNotify result = new emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.GetAllMailNotify(this);
+        result.isCollected_ = isCollected_;
+        onBuilt();
+        return result;
+      }
+
+      @java.lang.Override
+      public Builder clone() {
+        return super.clone();
+      }
+      @java.lang.Override
+      public Builder setField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          java.lang.Object value) {
+        return super.setField(field, value);
+      }
+      @java.lang.Override
+      public Builder clearField(
+          com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
+      }
+      @java.lang.Override
+      public Builder clearOneof(
+          com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
+      }
+      @java.lang.Override
+      public Builder setRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          int index, java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
+      }
+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          java.lang.Object value) {
+        return super.addRepeatedField(field, value);
+      }
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.GetAllMailNotify) {
+          return mergeFrom((emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.GetAllMailNotify)other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.GetAllMailNotify other) {
+        if (other == emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.GetAllMailNotify.getDefaultInstance()) return this;
+        if (other.getIsCollected() != false) {
+          setIsCollected(other.getIsCollected());
+        }
+        this.mergeUnknownFields(other.unknownFields);
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.GetAllMailNotify parsedMessage = null;
+        try {
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage = (emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.GetAllMailNotify) e.getUnfinishedMessage();
+          throw e.unwrapIOException();
+        } finally {
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
+        return this;
+      }
+
+      private boolean isCollected_ ;
+      /**
+       * <code>bool is_collected = 6;</code>
+       * @return The isCollected.
+       */
+      @java.lang.Override
+      public boolean getIsCollected() {
+        return isCollected_;
+      }
+      /**
+       * <code>bool is_collected = 6;</code>
+       * @param value The isCollected to set.
+       * @return This builder for chaining.
+       */
+      public Builder setIsCollected(boolean value) {
+        
+        isCollected_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>bool is_collected = 6;</code>
+       * @return This builder for chaining.
+       */
+      public Builder clearIsCollected() {
+        
+        isCollected_ = false;
+        onChanged();
+        return this;
+      }
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+
+      // @@protoc_insertion_point(builder_scope:GetAllMailNotify)
+    }
+
+    // @@protoc_insertion_point(class_scope:GetAllMailNotify)
+    private static final emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.GetAllMailNotify DEFAULT_INSTANCE;
+    static {
+      DEFAULT_INSTANCE = new emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.GetAllMailNotify();
+    }
+
+    public static emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.GetAllMailNotify getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser<GetAllMailNotify>
+        PARSER = new com.google.protobuf.AbstractParser<GetAllMailNotify>() {
+      @java.lang.Override
+      public GetAllMailNotify parsePartialFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return new GetAllMailNotify(input, extensionRegistry);
+      }
+    };
+
+    public static com.google.protobuf.Parser<GetAllMailNotify> parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser<GetAllMailNotify> getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public emu.grasscutter.net.proto.GetAllMailNotifyOuterClass.GetAllMailNotify getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+
+  }
+
+  private static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_GetAllMailNotify_descriptor;
+  private static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_GetAllMailNotify_fieldAccessorTable;
+
+  public static com.google.protobuf.Descriptors.FileDescriptor
+      getDescriptor() {
+    return descriptor;
+  }
+  private static  com.google.protobuf.Descriptors.FileDescriptor
+      descriptor;
+  static {
+    java.lang.String[] descriptorData = {
+      "\n\026GetAllMailNotify.proto\"(\n\020GetAllMailNo" +
+      "tify\022\024\n\014is_collected\030\006 \001(\010B\033\n\031emu.grassc" +
+      "utter.net.protob\006proto3"
+    };
+    descriptor = com.google.protobuf.Descriptors.FileDescriptor
+      .internalBuildGeneratedFileFrom(descriptorData,
+        new com.google.protobuf.Descriptors.FileDescriptor[] {
+        });
+    internal_static_GetAllMailNotify_descriptor =
+      getDescriptor().getMessageTypes().get(0);
+    internal_static_GetAllMailNotify_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_GetAllMailNotify_descriptor,
+        new java.lang.String[] { "IsCollected", });
+  }
+
+  // @@protoc_insertion_point(outer_class_scope)
+}

src/main/java/emu/grasscutter/game/mail/Mail.java

@@ -6,13 +6,14 @@ import dev.morphia.annotations.Indexed;
 import dev.morphia.annotations.Transient;
 import emu.grasscutter.database.DatabaseHelper;
 import emu.grasscutter.game.player.Player;
+import emu.grasscutter.net.proto.*;
+import emu.grasscutter.utils.Utils;
+import org.bson.types.ObjectId;
 
 import java.time.Instant;
 import java.util.ArrayList;
 import java.util.List;
 
-import org.bson.types.ObjectId;
-
 @Entity(value = "mail", useDiscriminator = false)
 public class Mail {
 	@Id private ObjectId id;
@@ -51,18 +52,32 @@ public class Mail {
     }
 
     public ObjectId getId() {
-		return id;
+        return id;
-	}
+    }
 
-	public int getOwnerUid() {
+    public int getOwnerUid() {
-		return ownerUid;
+        return ownerUid;
-	}
+    }
 
-	public void setOwnerUid(int ownerUid) {
+    public void setOwnerUid(int ownerUid) {
-		this.ownerUid = ownerUid;
+        this.ownerUid = ownerUid;
-	}
+    }
 
-	@Entity
+    public MailDataOuterClass.MailData toProto(Player player) {
+        return MailDataOuterClass.MailData.newBuilder()
+            .setMailId(player.getMailId(this))
+            .setMailTextContent(this.mailContent.toProto())
+            .addAllItemList(this.itemList.stream().map(MailItem::toProto).toList())
+            .setSendTime((int) this.sendTime)
+            .setExpireTime((int) this.expireTime)
+            .setImportance(this.importance)
+            .setIsRead(this.isRead)
+            .setIsAttachmentGot(this.isAttachmentGot)
+            .setCollectState(MailCollectStateOuterClass.MailCollectState.MAIL_COLLECT_STATE_NOT_COLLECTIBLE)
+            .build();
+    }
+
+    @Entity
     public static class MailContent {
         public String title;
         public String content;
@@ -87,6 +102,14 @@ public class Mail {
             this.content = content;
             this.sender = sender;
         }
+
+        public MailTextContentOuterClass.MailTextContent toProto() {
+            return MailTextContentOuterClass.MailTextContent.newBuilder()
+                .setTitle(this.title)
+                .setContent(this.content)
+                .setSender(this.sender)
+                .build();
+        }
     }
 
     @Entity
@@ -105,13 +128,25 @@ public class Mail {
             this(itemId, 1);
         }
 
-        public MailItem(int itemId, int itemCount) { this(itemId, itemCount, 1); }
+        public MailItem(int itemId, int itemCount) {
+            this(itemId, itemCount, 1);
+        }
 
         public MailItem(int itemId, int itemCount, int itemLevel) {
             this.itemId = itemId;
             this.itemCount = itemCount;
             this.itemLevel = itemLevel;
         }
+
+        public MailItemOuterClass.MailItem toProto() {
+            return MailItemOuterClass.MailItem.newBuilder()
+                .setEquipParam(Utils.make(() -> EquipParamOuterClass.EquipParam.newBuilder()
+                    .setItemId(this.itemId)
+                    .setItemNum(this.itemCount)
+                    .setItemLevel(this.itemLevel)
+                    .setPromoteLevel(0)//mock
+                    .build())).build();
+        }
     }
 
 	public void save() {

src/main/java/emu/grasscutter/net/packet/PacketOpcodes.java

@@ -577,8 +577,6 @@ public class PacketOpcodes {
   public static final int GetAllActivatedBargainDataRsp = 457;
   public static final int GetAllH5ActivityInfoReq = 5693;
   public static final int GetAllH5ActivityInfoRsp = 5698;
-  public static final int GetAllMailReq = 1459;
-  public static final int GetAllMailRsp = 1407;
   public static final int GetAllSceneGalleryInfoReq = 5572;
   public static final int GetAllSceneGalleryInfoRsp = 5582;
   public static final int GetAllUnlockNameCardReq = 4046;

src/main/java/emu/grasscutter/server/packet/recv/HandlerGetAllMailNotify.java

@@ -0,0 +1,47 @@
+package emu.grasscutter.server.packet.recv;
+
+import emu.grasscutter.game.player.Player;
+import emu.grasscutter.net.packet.Opcodes;
+import emu.grasscutter.net.packet.PacketHandler;
+import emu.grasscutter.net.packet.PacketOpcodes;
+import emu.grasscutter.net.proto.GetAllMailNotifyOuterClass;
+import emu.grasscutter.server.game.GameSession;
+import emu.grasscutter.server.packet.send.PacketGetAllMailResultNotify;
+import emu.grasscutter.utils.Utils;
+
+import java.util.List;
+import java.util.concurrent.atomic.AtomicInteger;
+
+@Opcodes(PacketOpcodes.GetAllMailNotify)
+public class HandlerGetAllMailNotify extends PacketHandler {
+    private static final int MAX_MAIL_DATA_NUM_PER_PACKET = 40;
+
+    private static void subdivide(Player player) {
+        var notGiftedMails = player.getAllMail().stream().filter(mail -> mail.stateValue == 1).toList();
+        var packetsBeSent = notGiftedMails.size() / MAX_MAIL_DATA_NUM_PER_PACKET + 1;
+        var curPacketNum = new AtomicInteger(1);
+        for (int i = 0; i < packetsBeSent; i++) {
+            player.sendPacket(new PacketGetAllMailResultNotify(packetsBeSent, curPacketNum.get(), Utils.make(() -> {
+                var index = (curPacketNum.get() - 1) * MAX_MAIL_DATA_NUM_PER_PACKET;
+                return notGiftedMails.subList(index, curPacketNum.get() == packetsBeSent ? notGiftedMails.size() - 1 : index + MAX_MAIL_DATA_NUM_PER_PACKET - 1);
+            }).stream().map(mail -> mail.toProto(player)).toList(), createTransaction(player), false));
+            curPacketNum.incrementAndGet();
+        }
+    }
+
+    private static String createTransaction(Player player) {
+        return player.getUid() + "-" + Utils.getCurrentSeconds() + "-" + 0;//mock
+    }
+
+    @Override
+    public void handle(GameSession session, byte[] header, byte[] payload) throws Exception {
+        var req = GetAllMailNotifyOuterClass.GetAllMailNotify.parseFrom(payload);
+        var gift = req.getIsCollected();
+        if (gift) {
+            session.send(new PacketGetAllMailResultNotify(1, 1, List.of(), "", true));
+            return;
+        }
+
+        subdivide(session.getPlayer());
+    }
+}

src/main/java/emu/grasscutter/server/packet/recv/HandlerGetAllMailReq.java

@@ -1,21 +0,0 @@
-package emu.grasscutter.server.packet.recv;
-
-import emu.grasscutter.Grasscutter;
-import emu.grasscutter.net.packet.Opcodes;
-import emu.grasscutter.net.packet.PacketOpcodes;
-import emu.grasscutter.net.packet.PacketHandler;
-import emu.grasscutter.net.proto.GetAllMailReqOuterClass;
-import emu.grasscutter.net.proto.GetPlayerTokenReqOuterClass;
-import emu.grasscutter.server.game.GameSession;
-import emu.grasscutter.server.packet.send.PacketGetAllMailRsp;
-import emu.grasscutter.server.packet.send.PacketGetGachaInfoRsp;
-
-@Opcodes(PacketOpcodes.GetAllMailReq)
-public class HandlerGetAllMailReq extends PacketHandler {
-
-    @Override
-    public void handle(GameSession session, byte[] header, byte[] payload) throws Exception {
-        GetAllMailReqOuterClass.GetAllMailReq req = GetAllMailReqOuterClass.GetAllMailReq.parseFrom(payload);
-        session.send(new PacketGetAllMailRsp(session.getPlayer(), req.getIsCollected()));
-    }
-}

src/main/java/emu/grasscutter/server/packet/send/PacketGetAllMailResultNotify.java

@@ -0,0 +1,22 @@
+package emu.grasscutter.server.packet.send;
+
+import emu.grasscutter.net.packet.BasePacket;
+import emu.grasscutter.net.packet.PacketOpcodes;
+import emu.grasscutter.net.proto.GetAllMailResultNotifyOuterClass;
+import emu.grasscutter.net.proto.MailDataOuterClass;
+
+import java.util.List;
+
+public class PacketGetAllMailResultNotify extends BasePacket {
+    public PacketGetAllMailResultNotify(int packetBeSentNum, int packetNum, List<MailDataOuterClass.MailData> mailData, String transaction, boolean isGift) {
+        super(PacketOpcodes.GetAllMailResultNotify);
+
+        this.setData(GetAllMailResultNotifyOuterClass.GetAllMailResultNotify.newBuilder()
+            .setPacketBeSentNum(packetBeSentNum)
+            .addAllMailList(mailData)
+            .setTransaction(transaction)
+            .setIsCollected(isGift)
+            .setPacketNum(packetNum)
+            .build());
+    }
+}

src/main/java/emu/grasscutter/server/packet/send/PacketGetAllMailRsp.java

@@ -1,78 +0,0 @@
-package emu.grasscutter.server.packet.send;
-
-import emu.grasscutter.Grasscutter;
-import emu.grasscutter.game.mail.Mail;
-import emu.grasscutter.game.player.Player;
-import emu.grasscutter.net.packet.BasePacket;
-import emu.grasscutter.net.packet.PacketOpcodes;
-import emu.grasscutter.net.proto.EquipParamOuterClass;
-import emu.grasscutter.net.proto.GetAllMailRspOuterClass.GetAllMailRsp;
-import emu.grasscutter.net.proto.ItemParamOuterClass;
-import emu.grasscutter.net.proto.MailDataOuterClass;
-import emu.grasscutter.net.proto.MailDataOuterClass.MailData;
-import emu.grasscutter.net.proto.MailItemOuterClass;
-import emu.grasscutter.net.proto.MailTextContentOuterClass.MailTextContent;
-
-import java.time.Instant;
-import java.util.ArrayList;
-import java.util.List;
-
-public class PacketGetAllMailRsp extends BasePacket {
-
-    public PacketGetAllMailRsp(Player player, boolean isGiftMail) {
-        super(PacketOpcodes.GetAllMailRsp);
-        GetAllMailRsp.Builder proto = GetAllMailRsp.newBuilder();
-
-        if (isGiftMail) {
-            proto.setIsCollected(true);
-        } else {
-            proto.setIsCollected(false);
-
-            if (player.getAllMail().size() != 0) { // Make sure the player has mail
-                List<MailData> mailDataList = new ArrayList<MailData>();
-
-                for (Mail message : player.getAllMail()) {
-                    if (message.stateValue == 1) { // Make sure it isn't a gift
-                        if (message.expireTime > (int) Instant.now().getEpochSecond()) { // Make sure the message isn't expired (The game won't show expired mail, but I don't want to send unnecessary information).
-                            if (mailDataList.size() <= 1000) { // Make sure that there isn't over 1000 messages in the mailbox. (idk what will happen if there is but the game probably won't like it.)
-                                MailTextContent.Builder mailTextContent = MailTextContent.newBuilder();
-                                mailTextContent.setTitle(message.mailContent.title);
-                                mailTextContent.setContent(message.mailContent.content);
-                                mailTextContent.setSender(message.mailContent.sender);
-
-                                List<MailItemOuterClass.MailItem> mailItems = new ArrayList<>();
-
-                                for (Mail.MailItem item : message.itemList) {
-                                    MailItemOuterClass.MailItem.Builder mailItem = MailItemOuterClass.MailItem.newBuilder();
-                                    EquipParamOuterClass.EquipParam.Builder itemParam = EquipParamOuterClass.EquipParam.newBuilder();
-                                    itemParam.setItemId(item.itemId);
-                                    itemParam.setItemNum(item.itemCount);
-                                    mailItem.setEquipParam(itemParam.build());
-
-                                    mailItems.add(mailItem.build());
-                                }
-
-                                MailDataOuterClass.MailData.Builder mailData = MailDataOuterClass.MailData.newBuilder();
-                                mailData.setMailId(player.getMailId(message));
-                                mailData.setMailTextContent(mailTextContent.build());
-                                mailData.addAllItemList(mailItems);
-                                mailData.setSendTime((int) message.sendTime);
-                                mailData.setExpireTime((int) message.expireTime);
-                                mailData.setImportance(message.importance);
-                                mailData.setIsRead(message.isRead);
-                                mailData.setIsAttachmentGot(message.isAttachmentGot);
-                                mailData.setCollectStateValue(1);
-
-                                mailDataList.add(mailData.build());
-                            }
-                        }
-                    }
-                }
-
-                proto.addAllMailList(mailDataList);
-                proto.setIsTruncated(mailDataList.size() > 1000); // When enabled this will send a notification to the user telling them their inbox is full and they should delete old messages when opening the mailbox.
-            }
-        }
-        this.setData(proto.build());
-    }
-}

src/main/java/emu/grasscutter/utils/Utils.java

@@ -1,14 +1,5 @@
 package emu.grasscutter.utils;
 
-import java.io.*;
-import java.nio.charset.StandardCharsets;
-import java.nio.file.Files;
-import java.nio.file.StandardCopyOption;
-import java.time.*;
-import java.time.temporal.TemporalAdjusters;
-import java.util.*;
-import java.util.concurrent.ThreadLocalRandom;
-
 import emu.grasscutter.Grasscutter;
 import emu.grasscutter.config.ConfigContainer;
 import emu.grasscutter.data.DataLoader;
@@ -17,10 +8,21 @@ import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import it.unimi.dsi.fastutil.ints.IntArrayList;
 import it.unimi.dsi.fastutil.ints.IntList;
-
 import org.slf4j.Logger;
 
 import javax.annotation.Nullable;
+import java.io.*;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.StandardCopyOption;
+import java.time.DayOfWeek;
+import java.time.ZoneId;
+import java.time.ZoneOffset;
+import java.time.ZonedDateTime;
+import java.time.temporal.TemporalAdjusters;
+import java.util.*;
+import java.util.concurrent.ThreadLocalRandom;
+import java.util.function.Supplier;
 
 import static emu.grasscutter.utils.FileUtils.getResourcePath;
 import static emu.grasscutter.utils.Language.translate;
@@ -29,6 +31,10 @@ import static emu.grasscutter.utils.Language.translate;
 public final class Utils {
     public static final Random random = new Random();
 
+    public static <T> T make(Supplier<T> factory) {
+        return factory.get();
+    }
+
     public static int randomRange(int min, int max) {
         return random.nextInt(max - min + 1) + min;
     }