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// GoToSocial
// Copyright (C) GoToSocial Authors admin@gotosocial.org
// SPDX-License-Identifier: AGPL-3.0-or-later
//
// 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 bundb
import (
"context"
"errors"
"slices"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/gtscontext"
"github.com/superseriousbusiness/gotosocial/internal/gtserror"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/log"
"github.com/superseriousbusiness/gotosocial/internal/state"
"github.com/superseriousbusiness/gotosocial/internal/util/xslices"
"github.com/uptrace/bun"
)
type statusEditDB struct {
db *bun.DB
state *state.State
}
func (s *statusEditDB) GetStatusEditByID(ctx context.Context, id string) (*gtsmodel.StatusEdit, error) {
// Fetch edit from database cache with loader callback.
edit, err := s.state.Caches.DB.StatusEdit.LoadOne("ID",
func() (*gtsmodel.StatusEdit, error) {
var edit gtsmodel.StatusEdit
// Not cached, load edit
// from database by its ID.
if err := s.db.NewSelect().
Model(&edit).
Where("? = ?", bun.Ident("id"), id).
Scan(ctx); err != nil {
return nil, err
}
return &edit, nil
}, id,
)
if err != nil {
return nil, err
}
if gtscontext.Barebones(ctx) {
// no need to fully populate.
return edit, nil
}
// Further populate the edit fields where applicable.
if err := s.PopulateStatusEdit(ctx, edit); err != nil {
return nil, err
}
return edit, nil
}
func (s *statusEditDB) GetStatusEditsByIDs(ctx context.Context, ids []string) ([]*gtsmodel.StatusEdit, error) {
// Load status edits for IDs via cache loader callbacks.
edits, err := s.state.Caches.DB.StatusEdit.LoadIDs("ID",
ids,
func(uncached []string) ([]*gtsmodel.StatusEdit, error) {
// Preallocate expected length of uncached edits.
edits := make([]*gtsmodel.StatusEdit, 0, len(uncached))
// Perform database query scanning
// the remaining (uncached) edit IDs.
if err := s.db.NewSelect().
Model(&edits).
Where("? IN (?)", bun.Ident("id"), bun.In(uncached)).
Scan(ctx); err != nil {
return nil, err
}
return edits, nil
},
)
if err != nil {
return nil, err
}
// Reorder the edits by their
// IDs to ensure in correct order.
getID := func(e *gtsmodel.StatusEdit) string { return e.ID }
xslices.OrderBy(edits, ids, getID)
if gtscontext.Barebones(ctx) {
// no need to fully populate.
return edits, nil
}
// Populate all loaded edits, removing those we fail to
// populate (removes needing so many nil checks everywhere).
edits = slices.DeleteFunc(edits, func(edit *gtsmodel.StatusEdit) bool {
if err := s.PopulateStatusEdit(ctx, edit); err != nil {
log.Errorf(ctx, "error populating edit %s: %v", edit.ID, err)
return true
}
return false
})
return edits, nil
}
func (s *statusEditDB) PopulateStatusEdit(ctx context.Context, edit *gtsmodel.StatusEdit) error {
var err error
var errs gtserror.MultiError
// For sub-models we only want
// barebones versions of them.
ctx = gtscontext.SetBarebones(ctx)
if !edit.AttachmentsPopulated() {
// Fetch all attachments for status edit's IDs.
edit.Attachments, err = s.state.DB.GetAttachmentsByIDs(
ctx,
edit.AttachmentIDs,
)
if err != nil {
errs.Appendf("error populating edit attachments: %w", err)
}
}
return errs.Combine()
}
func (s *statusEditDB) PutStatusEdit(ctx context.Context, edit *gtsmodel.StatusEdit) error {
return s.state.Caches.DB.StatusEdit.Store(edit, func() error {
_, err := s.db.NewInsert().Model(edit).Exec(ctx)
return err
})
}
func (s *statusEditDB) DeleteStatusEdits(ctx context.Context, ids []string) error {
// Gather necessary fields from
// deleted for cache invalidation.
deleted := make([]*gtsmodel.StatusEdit, 0, len(ids))
// Delete all edits with IDs pertaining
// to given slice, returning status IDs.
if _, err := s.db.NewDelete().
Model(&deleted).
Where("? IN (?)", bun.Ident("id"), bun.In(ids)).
Returning("?", bun.Ident("status_id")).
Exec(ctx); err != nil &&
!errors.Is(err, db.ErrNoEntries) {
return err
}
// Check for no deletes.
if len(deleted) == 0 {
return nil
}
// Invalidate all the cached status edits with IDs.
s.state.Caches.DB.StatusEdit.InvalidateIDs("ID", ids)
// With each invalidate hook mark status ID of
// edit we just called for. We only want to call
// invalidate hooks of edits from unique statuses.
invalidated := make(map[string]struct{}, 1)
// Invalidate the first delete manually, this
// opt negates need for initial hashmap lookup.
s.state.Caches.OnInvalidateStatusEdit(deleted[0])
invalidated[deleted[0].StatusID] = struct{}{}
for _, edit := range deleted {
// Check not already called for status.
_, ok := invalidated[edit.StatusID]
if ok {
continue
}
// Manually call status edit invalidate hook.
s.state.Caches.OnInvalidateStatusEdit(edit)
invalidated[edit.StatusID] = struct{}{}
}
return nil
}
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