MM-57326: [Shared Channels] Message priority, acknowledgement and persistent notifications need to be synced (#30736)

server/public/model/post_acknowledgement.go

@@ -6,9 +6,11 @@ package model
 import "net/http"
 
 type PostAcknowledgement struct {
-	UserId         string `json:"user_id"`
-	PostId         string `json:"post_id"`
-	AcknowledgedAt int64  `json:"acknowledged_at"`
+	UserId         string  `json:"user_id"`
+	PostId         string  `json:"post_id"`
+	AcknowledgedAt int64   `json:"acknowledged_at"`
+	ChannelId      string  `json:"channel_id"`
+	RemoteId       *string `json:"remote_id,omitempty"`
 }
 
 func (o *PostAcknowledgement) IsValid() *AppError {
@@ -20,5 +22,22 @@ func (o *PostAcknowledgement) IsValid() *AppError {
 		return NewAppError("PostAcknowledgement.IsValid", "model.acknowledgement.is_valid.post_id.app_error", nil, "post_id="+o.PostId, http.StatusBadRequest)
 	}
 
+	if !IsValidId(o.ChannelId) {
+		return NewAppError("PostAcknowledgement.IsValid", "model.acknowledgement.is_valid.channel_id.app_error", nil, "channel_id="+o.ChannelId, http.StatusBadRequest)
+	}
+
 	return nil
 }
+
+func (o *PostAcknowledgement) GetRemoteID() string {
+	if o.RemoteId != nil {
+		return *o.RemoteId
+	}
+	return ""
+}
+
+func (o *PostAcknowledgement) PreSave() {
+	if o.AcknowledgedAt == 0 {
+		o.AcknowledgedAt = GetMillis()
+	}
+}

server/public/model/shared_channel.go

@@ -291,6 +291,7 @@ type SyncMsg struct {
 	Reactions         []*Reaction            `json:"reactions,omitempty"`
 	Statuses          []*Status              `json:"statuses,omitempty"`
 	MembershipChanges []*MembershipChangeMsg `json:"membership_changes,omitempty"`
+	Acknowledgements  []*PostAcknowledgement `json:"acknowledgements,omitempty"`
 }
 
 func NewSyncMsg(channelID string) *SyncMsg {
@@ -328,6 +329,9 @@ type SyncResponse struct {
 	ReactionsLastUpdateAt int64    `json:"reactions_last_update_at"`
 	ReactionErrors        []string `json:"reaction_errors"`
 
+	AcknowledgementsLastUpdateAt int64    `json:"acknowledgements_last_update_at"`
+	AcknowledgementErrors        []string `json:"acknowledgement_errors"`
+
 	StatusErrors []string `json:"status_errors"` // user IDs for which the status sync failed
 }