chore: import upstream snapshot with attribution

internal/base/constant/event.go

@@ -0,0 +1,75 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package constant
+
+// EventType event type. It is used to define the type of event. Such as object.action
+type EventType string
+
+// event object
+const (
+	eventQuestion = "question"
+	eventAnswer   = "answer"
+	eventComment  = "comment"
+	eventUser     = "user"
+)
+
+// event action
+const (
+	eventCreate = "create"
+	eventUpdate = "update"
+	eventDelete = "delete"
+	eventVote   = "vote"
+	eventAccept = "accept" // only question have the accept event
+	eventShare  = "share"  // the object share link has been clicked
+	eventFlag   = "flag"
+	eventReact  = "react"
+)
+
+const (
+	EventUserUpdate EventType = eventUser + "." + eventUpdate
+	EventUserShare  EventType = eventUser + "." + eventShare
+)
+
+const (
+	EventQuestionCreate EventType = eventQuestion + "." + eventCreate
+	EventQuestionUpdate EventType = eventQuestion + "." + eventUpdate
+	EventQuestionDelete EventType = eventQuestion + "." + eventDelete
+	EventQuestionVote   EventType = eventQuestion + "." + eventVote
+	EventQuestionAccept EventType = eventQuestion + "." + eventAccept
+	EventQuestionFlag   EventType = eventQuestion + "." + eventFlag
+	EventQuestionReact  EventType = eventQuestion + "." + eventReact
+)
+
+const (
+	EventAnswerCreate EventType = eventAnswer + "." + eventCreate
+	EventAnswerUpdate EventType = eventAnswer + "." + eventUpdate
+	EventAnswerDelete EventType = eventAnswer + "." + eventDelete
+	EventAnswerVote   EventType = eventAnswer + "." + eventVote
+	EventAnswerFlag   EventType = eventAnswer + "." + eventFlag
+	EventAnswerReact  EventType = eventAnswer + "." + eventReact
+)
+
+const (
+	EventCommentCreate EventType = eventComment + "." + eventCreate
+	EventCommentUpdate EventType = eventComment + "." + eventUpdate
+	EventCommentDelete EventType = eventComment + "." + eventDelete
+	EventCommentVote   EventType = eventComment + "." + eventVote
+	EventCommentFlag   EventType = eventComment + "." + eventFlag
+)