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src/main/java/it/auties/whatsapp/model/message/model/PinInChat.java

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+package it.auties.whatsapp.model.message.model;
+
+import it.auties.protobuf.annotation.ProtobufEnumIndex;
+import it.auties.protobuf.annotation.ProtobufMessageName;
+import it.auties.protobuf.annotation.ProtobufProperty;
+import it.auties.protobuf.model.ProtobufEnum;
+import it.auties.protobuf.model.ProtobufMessage;
+import it.auties.protobuf.model.ProtobufType;
+import it.auties.whatsapp.model.info.MessageAddOnContextInfo;
+import it.auties.whatsapp.model.jid.Jid;
+import it.auties.whatsapp.util.Clock;
+
+import java.time.ZonedDateTime;
+import java.util.Optional;
+
+
+/**
+ * A model class that represents an ephemeral message that was saved manually by the user in a chat
+ */
+@ProtobufMessageName("PinInChat")
+public record PinInChat(
+        @ProtobufProperty(index = 1, type = ProtobufType.OBJECT)
+        Type pinType,
+        @ProtobufProperty(index = 2, type = ProtobufType.OBJECT)
+        ChatMessageKey key,
+        @ProtobufProperty(index = 3, type = ProtobufType.INT64)
+        long clientTimestampInMilliseconds,
+        @ProtobufProperty(index = 4, type = ProtobufType.INT64)
+        long serverTimestampMilliseconds,
+        @ProtobufProperty(index = 5, type = ProtobufType.OBJECT)
+        MessageAddOnContextInfo messageAddOnContextInfo
+) implements ProtobufMessage {
+    public Optional<ZonedDateTime> serverTimestamp() { return Clock.parseMilliseconds(serverTimestampMilliseconds); }
+
+    public Optional<ZonedDateTime> clientTimestamp() { return Clock.parseMilliseconds(clientTimestampInMilliseconds); }
+
+    public enum Type implements ProtobufEnum {
+        UNKNOWN_TYPE(0),
+        PIN_FOR_ALL(1),
+        UNDO_PIN_FOR_ALL(2);
+
+        final int index;
+
+        Type(@ProtobufEnumIndex int index) { this.index = index; }
+
+        public int index() { return index; }
+    }
+}