复制项目

internal/api/jssdk/sort.go

@@ -0,0 +1,33 @@
+package jssdk
+
+import "git.imall.cloud/openim/protocol/msg"
+
+type sortActiveConversations struct {
+	Conversation          []*msg.ActiveConversation
+	PinnedConversationIDs map[string]struct{}
+}
+
+func (s sortActiveConversations) Top(limit int) []*msg.ActiveConversation {
+	if limit > 0 && len(s.Conversation) > limit {
+		return s.Conversation[:limit]
+	}
+	return s.Conversation
+}
+
+func (s sortActiveConversations) Len() int {
+	return len(s.Conversation)
+}
+
+func (s sortActiveConversations) Less(i, j int) bool {
+	iv, jv := s.Conversation[i], s.Conversation[j]
+	_, ip := s.PinnedConversationIDs[iv.ConversationID]
+	_, jp := s.PinnedConversationIDs[jv.ConversationID]
+	if ip != jp {
+		return ip
+	}
+	return iv.LastTime > jv.LastTime
+}
+
+func (s sortActiveConversations) Swap(i, j int) {
+	s.Conversation[i], s.Conversation[j] = s.Conversation[j], s.Conversation[i]
+}