feat: add conversation system action messages

server/im_http.go

@@ -551,6 +551,18 @@ type imGroupMuteBatchRequest struct {
 	Reason string `json:"reason,omitempty"`
 }
 
+type imSystemMessageActor struct {
+	UserID string         `json:"user_id,omitempty"`
+	Name   string         `json:"name,omitempty"`
+	Click  map[string]any `json:"click,omitempty"`
+}
+
+type imSystemMessageAction struct {
+	Type     string `json:"type"`
+	Label    string `json:"label,omitempty"`
+	TargetID string `json:"target_id,omitempty"`
+}
+
 func serveIMTenantResolve(wrt http.ResponseWriter, req *http.Request) {
 	if req.Method != http.MethodPost {
 		writeIMError(wrt, req, http.StatusMethodNotAllowed, 30002, imReasonMethodNotAllowed, "method not allowed", nil)
@@ -4169,6 +4181,9 @@ func serveIMFriends(wrt http.ResponseWriter, req *http.Request) {
 	}
 	payload := make([]map[string]any, 0, len(items))
 	for _, item := range items {
+		if item.Friendship.PeerID == principal.Uid {
+			continue
+		}
 		payload = append(payload, friendListItemPayload(item))
 	}
 	writeIMSuccess(wrt, req, map[string]any{"items": payload, "next_cursor": nextCursor})
@@ -4934,6 +4949,16 @@ func serveIMGroupInvitationResource(wrt http.ResponseWriter, req *http.Request)
 		writeIMRelationError(wrt, req, err)
 		return
 	}
+	if imReliableHTTPEventsEnabled(req) {
+		publishIMConversationSystemNotice(principal.TenantID, inv.Topic,
+			"system_action", "group_member_joined", "有成员通过邀请加入了群聊。",
+			[]imSystemMessageActor{
+				{UserID: inv.InviterUserID.UserId(), Click: map[string]any{"type": "user_profile", "target_id": inv.InviterUserID.UserId()}},
+				{UserID: inv.TargetUserID.UserId(), Click: map[string]any{"type": "user_profile", "target_id": inv.TargetUserID.UserId()}},
+			},
+			[]imSystemMessageAction{{Type: "group_profile", Label: "查看群聊", TargetID: inv.Topic}},
+			map[string]any{"invitation_id": inv.InvitationID, "source": "invitation"})
+	}
 	dispatchIMGroupEvents(principal.TenantID)
 	writeIMSuccess(wrt, req, groupInvitationPayload(inv))
 }
@@ -5048,6 +5073,16 @@ func serveIMGroupJoinRequestAction(wrt http.ResponseWriter, req *http.Request, t
 		writeIMRelationError(wrt, req, err)
 		return
 	}
+	if updated.Status == types.GroupJoinRequestStatusAccepted && imReliableHTTPEventsEnabled(req) {
+		publishIMConversationSystemNotice(principal.TenantID, topic,
+			"system_action", "group_member_joined", "有成员通过审批加入了群聊。",
+			[]imSystemMessageActor{
+				{UserID: updated.ApplicantUserID.UserId(), Click: map[string]any{"type": "user_profile", "target_id": updated.ApplicantUserID.UserId()}},
+				{UserID: principal.Uid.UserId(), Click: map[string]any{"type": "user_profile", "target_id": principal.Uid.UserId()}},
+			},
+			[]imSystemMessageAction{{Type: "group_profile", Label: "查看群聊", TargetID: topic}},
+			map[string]any{"request_id": updated.RequestID, "source": "approval"})
+	}
 	dispatchIMGroupEvents(principal.TenantID)
 	writeIMSuccess(wrt, req, groupJoinRequestPayload(updated))
 }
@@ -5176,6 +5211,21 @@ func serveIMGroupGovernance(wrt http.ResponseWriter, req *http.Request, topic st
 			writeIMRelationError(wrt, req, err)
 			return
 		}
+		if body.JoinApproval != nil && imReliableHTTPEventsEnabled(req) {
+			template := "group_invite_confirm_disabled"
+			text := "群聊邀请确认已关闭，成员邀请好友可直接进群。"
+			if *body.JoinApproval {
+				template = "group_invite_confirm_enabled"
+				text = "群聊邀请确认已启用，群成员邀请好友进群需要群主或管理员确认。"
+			}
+			publishIMConversationSystemNotice(principal.TenantID, topic,
+				"system_action", template, text,
+				[]imSystemMessageActor{
+					{UserID: principal.Uid.UserId(), Click: map[string]any{"type": "user_profile", "target_id": principal.Uid.UserId()}},
+				},
+				[]imSystemMessageAction{{Type: "open_group_invite_settings", Label: "群聊邀请确认", TargetID: topic}},
+				map[string]any{"join_approval": *body.JoinApproval, "version": settings.Version})
+		}
 		dispatchIMGroupEvents(principal.TenantID)
 		writeIMSuccess(wrt, req, groupGovernancePayloadFromSettings(settings, selfSub))
 	default:
@@ -5794,6 +5844,14 @@ func serveIMFriendRequestAction(wrt http.ResponseWriter, req *http.Request) {
 		writeIMRelationError(wrt, req, err)
 		return
 	}
+	if status == types.FriendRequestAccepted && imReliableHTTPEventsEnabled(req) {
+		publishIMConversationSystemNotice(principal.TenantID, updated.ApplicantID.P2PName(updated.TargetID),
+			"system_notice", "friend_added", "你们已成为好友，现在可以开始聊天了。",
+			[]imSystemMessageActor{
+				{UserID: updated.ApplicantID.UserId(), Click: map[string]any{"type": "user_profile", "target_id": updated.ApplicantID.UserId()}},
+				{UserID: updated.TargetID.UserId(), Click: map[string]any{"type": "user_profile", "target_id": updated.TargetID.UserId()}},
+			}, nil, map[string]any{"request_id": updated.RequestID})
+	}
 	dispatchIMBusinessEvents(principal.TenantID)
 	if imReliableHTTPEventsEnabled(req) {
 		eventType := "friend.request." + status
@@ -9248,6 +9306,64 @@ func requireIMTopicReadable(tenantID types.TenantID, uid types.Uid, topic string
 	return nil
 }
 
+func publishIMConversationSystemNotice(tenantID types.TenantID, topic, msgType, template, text string, actors []imSystemMessageActor, actions []imSystemMessageAction, extra map[string]any) {
+	if tenantID == types.ZeroTenantID || strings.TrimSpace(topic) == "" || store.Store == nil || !store.Store.IsOpen() || store.Topics == nil || store.Messages == nil {
+		return
+	}
+	msgType = strings.TrimSpace(msgType)
+	if msgType == "" {
+		msgType = "system_notice"
+	}
+	if msgType != "system_notice" && msgType != "system_action" {
+		logs.Warn.Printf("im system message: unsupported type %q for topic %s", msgType, topic)
+		return
+	}
+	template = strings.TrimSpace(template)
+	text = strings.TrimSpace(text)
+	if template == "" || text == "" {
+		return
+	}
+	topicRecord, err := store.Topics.Get(tenantID, topic)
+	if err != nil || topicRecord == nil {
+		if err != nil {
+			logs.Warn.Printf("im system message: failed to load topic %s: %v", topic, err)
+		}
+		return
+	}
+	content := map[string]any{
+		"text":     text,
+		"template": template,
+		"level":    "normal",
+	}
+	if len(actors) > 0 {
+		content["actors"] = actors
+	}
+	if len(actions) > 0 {
+		content["actions"] = actions
+	}
+	if len(extra) > 0 {
+		content["extra"] = extra
+	}
+	now := time.Now().UTC().Round(time.Millisecond)
+	_, err = store.Messages.Save(tenantID, &types.Message{
+		ObjHeader: types.ObjHeader{CreatedAt: now, UpdatedAt: now},
+		TenantID:  tenantID,
+		SeqId:     topicRecord.SeqId + 1,
+		Topic:     topic,
+		From:      types.ZeroUid.String(),
+		Head: types.KVMap{
+			"x-im-schema":   1,
+			"x-im-type":     msgType,
+			"x-im-template": template,
+			"x-im-from":     "system",
+		},
+		Content: content,
+	}, nil, false)
+	if err != nil && !errors.Is(err, types.ErrDuplicate) {
+		logs.Warn.Printf("im system message: failed to save %s for topic %s: %v", template, topic, err)
+	}
+}
+
 func systemNotificationIDFromPath(path string) string {
 	const marker = "/v1/im/system-notifications/"
 	idx := strings.Index(path, marker)