gotosocial/internal/db/pg/statuscontext.go
Tobi Smethurst 0f2de6394a
Dereference remote replies (#132)
* decided where to put reply dereferencing

* fiddling with dereferencing threads

* further adventures

* tidy up some stuff

* move dereferencing functionality

* a bunch of refactoring

* go fmt

* more refactoring

* bleep bloop

* docs and linting

* start implementing replies collection on gts side

* fiddling around

* allow dereferencing our replies

* lint, fmt
2021-08-10 13:32:39 +02:00

105 lines
3 KiB
Go

/*
GoToSocial
Copyright (C) 2021 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 pg
import (
"container/list"
"errors"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
)
func (ps *postgresService) StatusParents(status *gtsmodel.Status, onlyDirect bool) ([]*gtsmodel.Status, error) {
parents := []*gtsmodel.Status{}
ps.statusParent(status, &parents, onlyDirect)
return parents, nil
}
func (ps *postgresService) statusParent(status *gtsmodel.Status, foundStatuses *[]*gtsmodel.Status, onlyDirect bool) {
if status.InReplyToID == "" {
return
}
parentStatus := &gtsmodel.Status{}
if err := ps.conn.Model(parentStatus).Where("id = ?", status.InReplyToID).Select(); err == nil {
*foundStatuses = append(*foundStatuses, parentStatus)
}
if onlyDirect {
return
}
ps.statusParent(parentStatus, foundStatuses, false)
}
func (ps *postgresService) StatusChildren(status *gtsmodel.Status, onlyDirect bool, minID string) ([]*gtsmodel.Status, error) {
foundStatuses := &list.List{}
foundStatuses.PushFront(status)
ps.statusChildren(status, foundStatuses, onlyDirect, minID)
children := []*gtsmodel.Status{}
for e := foundStatuses.Front(); e != nil; e = e.Next() {
entry, ok := e.Value.(*gtsmodel.Status)
if !ok {
panic(errors.New("entry in foundStatuses was not a *gtsmodel.Status"))
}
// only append children, not the overall parent status
if entry.ID != status.ID {
children = append(children, entry)
}
}
return children, nil
}
func (ps *postgresService) statusChildren(status *gtsmodel.Status, foundStatuses *list.List, onlyDirect bool, minID string) {
immediateChildren := []*gtsmodel.Status{}
q := ps.conn.Model(&immediateChildren).Where("in_reply_to_id = ?", status.ID)
if minID != "" {
q = q.Where("status.id > ?", minID)
}
if err := q.Select(); err != nil {
return
}
for _, child := range immediateChildren {
insertLoop:
for e := foundStatuses.Front(); e != nil; e = e.Next() {
entry, ok := e.Value.(*gtsmodel.Status)
if !ok {
panic(errors.New("entry in foundStatuses was not a *gtsmodel.Status"))
}
if child.InReplyToAccountID != "" && entry.ID == child.InReplyToID {
foundStatuses.InsertAfter(child, e)
break insertLoop
}
}
// only do one loop if we only want direct children
if onlyDirect {
return
}
ps.statusChildren(child, foundStatuses, false, minID)
}
}