[chore] remove type switch in Create() and instead move to FederatedCallbacks() (#3697)

* remove type switch in Create() and instead move to FederatedCallbacks()

* add missing (my bad!) federating wrapped callbacks behaviour

* add missing license header 😇

* fix create flag test to use correct function

internal/federation/federatingdb/db.go

@@ -24,6 +24,7 @@ import (
 	"codeberg.org/gruf/go-cache/v3/simple"
 	"github.com/superseriousbusiness/activity/pub"
 	"github.com/superseriousbusiness/activity/streams/vocab"
+	"github.com/superseriousbusiness/gotosocial/internal/ap"
 	"github.com/superseriousbusiness/gotosocial/internal/filter/interaction"
 	"github.com/superseriousbusiness/gotosocial/internal/filter/spam"
 	"github.com/superseriousbusiness/gotosocial/internal/filter/visibility"
@@ -34,18 +35,20 @@ import (
 // DB wraps the pub.Database interface with
 // a couple of custom functions for GoToSocial.
 type DB interface {
-	// Default functionality.
+	// Default
+	// functionality.
 	pub.Database
 
-	/*
-		Overridden functionality for calling from federatingProtocol.
-	*/
-
-	Undo(ctx context.Context, undo vocab.ActivityStreamsUndo) error
-	Accept(ctx context.Context, accept vocab.ActivityStreamsAccept) error
-	Reject(ctx context.Context, reject vocab.ActivityStreamsReject) error
-	Announce(ctx context.Context, announce vocab.ActivityStreamsAnnounce) error
-	Move(ctx context.Context, move vocab.ActivityStreamsMove) error
+	// Federating protocol overridden callback functionality.
+	Like(context.Context, vocab.ActivityStreamsLike) error
+	Block(context.Context, vocab.ActivityStreamsBlock) error
+	Follow(context.Context, vocab.ActivityStreamsFollow) error
+	Undo(context.Context, vocab.ActivityStreamsUndo) error
+	Accept(context.Context, vocab.ActivityStreamsAccept) error
+	Reject(context.Context, vocab.ActivityStreamsReject) error
+	Announce(context.Context, vocab.ActivityStreamsAnnounce) error
+	Move(context.Context, vocab.ActivityStreamsMove) error
+	Flag(context.Context, vocab.ActivityStreamsFlag) error
 
 	/*
 		Extra/convenience functionality.
@@ -87,3 +90,9 @@ func New(
 	fdb.activityIDs.Init(0, 2048)
 	return &fdb
 }
+
+// storeActivityID stores an entry in the .activityIDs cache for this
+// type's JSON-LD ID, for later checks in Exist() to mark it as seen.
+func (f *federatingDB) storeActivityID(asType vocab.Type) {
+	f.activityIDs.Set(ap.GetJSONLDId(asType).String(), struct{}{})
+}