feat: provide the interface required by js sdk (#2664)

* fix: redis support acquisition time

* fix: GetActiveConversation

* feat: jssdk GetConversations, GetActiveConversation

* feat: jssdk GetConversations, GetActiveConversation

* feat: jssdk GetConversations, GetActiveConversation

* feat: jssdk GetConversations, GetActiveConversation

* feat: jssdk GetConversations, GetActiveConversation

internal/rpc/msg/as_read.go

@@ -55,7 +55,7 @@ func (m *msgServer) GetConversationsHasReadAndMaxSeq(ctx context.Context, req *m
 			conversationMaxSeqMap[conversation.ConversationID] = conversation.MaxSeq
 		}
 	}
-	maxSeqs, err := m.MsgDatabase.GetMaxSeqs(ctx, conversationIDs)
+	maxSeqs, err := m.MsgDatabase.GetMaxSeqsWithTime(ctx, conversationIDs)
 	if err != nil {
 		return nil, err
 	}
@@ -63,7 +63,8 @@ func (m *msgServer) GetConversationsHasReadAndMaxSeq(ctx context.Context, req *m
 	for conversationID, maxSeq := range maxSeqs {
 		resp.Seqs[conversationID] = &msg.Seqs{
 			HasReadSeq: hasReadSeqs[conversationID],
-			MaxSeq:     maxSeq,
+			MaxSeq:     maxSeq.Seq,
+			MaxSeqTime: maxSeq.Time,
 		}
 		if v, ok := conversationMaxSeqMap[conversationID]; ok {
 			resp.Seqs[conversationID].MaxSeq = v

internal/rpc/msg/seq.go

@@ -16,10 +16,10 @@ package msg
 
 import (
 	"context"
+	pbmsg "github.com/openimsdk/protocol/msg"
 	"github.com/openimsdk/tools/errs"
 	"github.com/redis/go-redis/v9"
-
-	pbmsg "github.com/openimsdk/protocol/msg"
+	"sort"
 )
 
 func (m *msgServer) GetConversationMaxSeq(ctx context.Context, req *pbmsg.GetConversationMaxSeqReq) (*pbmsg.GetConversationMaxSeqResp, error) {
@@ -62,3 +62,25 @@ func (m *msgServer) SetUserConversationsMinSeq(ctx context.Context, req *pbmsg.S
 	}
 	return &pbmsg.SetUserConversationsMinSeqResp{}, nil
 }
+
+func (m *msgServer) GetActiveConversation(ctx context.Context, req *pbmsg.GetActiveConversationReq) (*pbmsg.GetActiveConversationResp, error) {
+	res, err := m.MsgDatabase.GetCacheMaxSeqWithTime(ctx, req.ConversationIDs)
+	if err != nil {
+		return nil, err
+	}
+	conversations := make([]*pbmsg.ActiveConversation, 0, len(res))
+	for conversationID, val := range res {
+		conversations = append(conversations, &pbmsg.ActiveConversation{
+			MaxSeq:         val.Seq,
+			LastTime:       val.Time,
+			ConversationID: conversationID,
+		})
+	}
+	if req.Limit > 0 {
+		sort.Sort(activeConversations(conversations))
+		if len(conversations) > int(req.Limit) {
+			conversations = conversations[:req.Limit]
+		}
+	}
+	return &pbmsg.GetActiveConversationResp{Conversations: conversations}, nil
+}

internal/rpc/msg/utils.go

@@ -15,6 +15,7 @@
 package msg
 
 import (
+	"github.com/openimsdk/protocol/msg"
 	"github.com/openimsdk/tools/errs"
 	"github.com/redis/go-redis/v9"
 	"go.mongodb.org/mongo-driver/mongo"
@@ -28,3 +29,63 @@ func IsNotFound(err error) bool {
 		return false
 	}
 }
+
+type activeConversations []*msg.ActiveConversation
+
+func (s activeConversations) Len() int {
+	return len(s)
+}
+
+func (s activeConversations) Less(i, j int) bool {
+	return s[i].LastTime > s[j].LastTime
+}
+
+func (s activeConversations) Swap(i, j int) {
+	s[i], s[j] = s[j], s[i]
+}
+
+//type seqTime struct {
+//	ConversationID string
+//	Seq            int64
+//	Time           int64
+//	Unread         int64
+//	Pinned         bool
+//}
+//
+//func (s seqTime) String() string {
+//	return fmt.Sprintf("<Time_%d,Unread_%d,Pinned_%t>", s.Time, s.Unread, s.Pinned)
+//}
+//
+//type seqTimes []seqTime
+//
+//func (s seqTimes) Len() int {
+//	return len(s)
+//}
+//
+//// Less sticky priority, unread priority, time descending
+//func (s seqTimes) Less(i, j int) bool {
+//	iv, jv := s[i], s[j]
+//	if iv.Pinned && (!jv.Pinned) {
+//		return true
+//	}
+//	if jv.Pinned && (!iv.Pinned) {
+//		return false
+//	}
+//	if iv.Unread > 0 && jv.Unread == 0 {
+//		return true
+//	}
+//	if jv.Unread > 0 && iv.Unread == 0 {
+//		return false
+//	}
+//	return iv.Time > jv.Time
+//}
+//
+//func (s seqTimes) Swap(i, j int) {
+//	s[i], s[j] = s[j], s[i]
+//}
+//
+//type conversationStatus struct {
+//	ConversationID string
+//	Pinned         bool
+//	Recv           bool
+//}