[chore] Deinterface processor and subprocessors (#1501)

* [chore] Deinterface processor and subprocessors

* expose subprocessors via function calls

* missing license header

internal/processing/admin/media.go

@@ -0,0 +1,64 @@
+/*
+   GoToSocial
+   Copyright (C) 2021-2023 GoToSocial Authors admin@gotosocial.org
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Affero General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU Affero General Public License for more details.
+
+   You should have received a copy of the GNU Affero General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+package admin
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/superseriousbusiness/gotosocial/internal/gtserror"
+	"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
+	"github.com/superseriousbusiness/gotosocial/internal/log"
+)
+
+// MediaRefetch forces a refetch of remote emojis.
+func (p *Processor) MediaRefetch(ctx context.Context, requestingAccount *gtsmodel.Account, domain string) gtserror.WithCode {
+	transport, err := p.transportController.NewTransportForUsername(ctx, requestingAccount.Username)
+	if err != nil {
+		err = fmt.Errorf("error getting transport for user %s during media refetch request: %w", requestingAccount.Username, err)
+		return gtserror.NewErrorInternalError(err)
+	}
+
+	go func() {
+		log.Info(ctx, "starting emoji refetch")
+		refetched, err := p.mediaManager.RefetchEmojis(context.Background(), domain, transport.DereferenceMedia)
+		if err != nil {
+			log.Errorf(ctx, "error refetching emojis: %s", err)
+		} else {
+			log.Infof(ctx, "refetched %d emojis from remote", refetched)
+		}
+	}()
+
+	return nil
+}
+
+// MediaPrune triggers a non-blocking prune of remote media, local unused media, etc.
+func (p *Processor) MediaPrune(ctx context.Context, mediaRemoteCacheDays int) gtserror.WithCode {
+	if mediaRemoteCacheDays < 0 {
+		err := fmt.Errorf("MediaPrune: invalid value for mediaRemoteCacheDays prune: value was %d, cannot be less than 0", mediaRemoteCacheDays)
+		return gtserror.NewErrorBadRequest(err, err.Error())
+	}
+
+	if err := p.mediaManager.PruneAll(ctx, mediaRemoteCacheDays, false); err != nil {
+		err = fmt.Errorf("MediaPrune: %w", err)
+		return gtserror.NewErrorInternalError(err)
+	}
+
+	return nil
+}