Timeline manager (#40)

* start messing about with timeline manager

* i have no idea what i'm doing

* i continue to not know what i'm doing

* it's coming along

* bit more progress

* update timeline with new posts as they come in

* lint and fmt

* Select accounts where empty string

* restructure a bunch, get unfaves working

* moving stuff around

* federate status deletes properly

* mention regex better but not 100% there

* fix regex

* some more hacking away at the timeline code phew

* fix up some little things

* i can't even

* more timeline stuff

* move to ulid

* fiddley

* some lil fixes for kibou compatibility

* timelines working pretty alright!

* tidy + lint

internal/federation/federatingdb/create.go

@@ -29,6 +29,7 @@ import (
 	"github.com/sirupsen/logrus"
 	"github.com/superseriousbusiness/gotosocial/internal/db"
 	"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
+	"github.com/superseriousbusiness/gotosocial/internal/id"
 	"github.com/superseriousbusiness/gotosocial/internal/util"
 )
 
@@ -99,10 +100,21 @@ func (f *federatingDB) Create(ctx context.Context, asType vocab.Type) error {
 				if err != nil {
 					return fmt.Errorf("error converting note to status: %s", err)
 				}
+
+				// id the status based on the time it was created
+				statusID, err := id.NewULIDFromTime(status.CreatedAt)
+				if err != nil {
+					return err
+				}
+				status.ID = statusID
+
 				if err := f.db.Put(status); err != nil {
 					if _, ok := err.(db.ErrAlreadyExists); ok {
+						// the status already exists in the database, which means we've already handled everything else,
+						// so we can just return nil here and be done with it.
 						return nil
 					}
+					// an actual error has happened
 					return fmt.Errorf("database error inserting status: %s", err)
 				}
 
@@ -125,6 +137,12 @@ func (f *federatingDB) Create(ctx context.Context, asType vocab.Type) error {
 			return fmt.Errorf("could not convert Follow to follow request: %s", err)
 		}
 
+		newID, err := id.NewULID()
+		if err != nil {
+			return err
+		}
+		followRequest.ID = newID
+
 		if err := f.db.Put(followRequest); err != nil {
 			return fmt.Errorf("database error inserting follow request: %s", err)
 		}
@@ -146,6 +164,12 @@ func (f *federatingDB) Create(ctx context.Context, asType vocab.Type) error {
 			return fmt.Errorf("could not convert Like to fave: %s", err)
 		}
 
+		newID, err := id.NewULID()
+		if err != nil {
+			return err
+		}
+		fave.ID = newID
+
 		if err := f.db.Put(fave); err != nil {
 			return fmt.Errorf("database error inserting fave: %s", err)
 		}