[feature] Implement backfilling statuses thru scheduled_at (#3685)

* Implement backfilling statuses thru scheduled_at

* Forbid mentioning others in backfills

* Update error messages & codes

* Add new tests for backfilled statuses

* Test that backfilling doesn't timeline or notify

* Fix check for absence of notification

* Test that backfills do not cause federation

* Fix type of apimodel.StatusCreateRequest.ScheduledAt in tests

* Add config file switch and min date check

1 files changed, 7 insertions, 2 deletions

diff --git a/internal/gtsmodel/status.go b/internal/gtsmodel/status.go
index d28898ed1..e170e7464 100644
--- a/internal/gtsmodel/status.go
+++ b/internal/gtsmodel/status.go
@@ -86,7 +86,7 @@ func (s *Status) GetAccountID() string {
 	return s.AccountID
 }
 
-// GetBoostID implements timeline.Timelineable{}.
+// GetBoostOfID implements timeline.Timelineable{}.
 func (s *Status) GetBoostOfID() string {
 	return s.BoostOfID
 }
@@ -171,7 +171,7 @@ func (s *Status) EditsPopulated() bool {
 	return true
 }
 
-// EmojissUpToDate returns whether status emoji attachments of receiving status are up-to-date
+// EmojisUpToDate returns whether status emoji attachments of receiving status are up-to-date
 // according to emoji attachments of the passed status, by comparing their emoji URIs. We don't
 // use IDs as this is used to determine whether there are new emojis to fetch.
 func (s *Status) EmojisUpToDate(other *Status) bool {
@@ -386,3 +386,8 @@ type Content struct {
 	Content    string
 	ContentMap map[string]string
 }
+
+// BackfillStatus is a wrapper for creating a status without pushing notifications to followers.
+type BackfillStatus struct {
+	*Status
+}