[feature] Process `Reject` of interaction via fedi API, put rejected statuses in the "sin bin" 😈 (#3271)

* [feature] Process `Reject` of interaction via fedi API, put rejected statuses in the "sin bin"

* update test

* move nil check back to `rejectStatusIRI`

5 files changed, 236 insertions, 0 deletions

diff --git a/internal/db/bundb/bundb.go b/internal/db/bundb/bundb.go
index 6ecd43cbc..45607ea15 100644
--- a/internal/db/bundb/bundb.go
+++ b/internal/db/bundb/bundb.go
@@ -76,6 +76,7 @@ type DBService struct {
 	db.Rule
 	db.Search
 	db.Session
+	db.SinBinStatus
 	db.Status
 	db.StatusBookmark
 	db.StatusFave
@@ -271,6 +272,10 @@ func NewBunDBService(ctx context.Context, state *state.State) (db.DB, error) {
 		Session: &sessionDB{
 			db: db,
 		},
+		SinBinStatus: &sinBinStatusDB{
+			db:    db,
+			state: state,
+		},
 		Status: &statusDB{
 			db:    db,
 			state: state,
diff --git a/internal/db/bundb/migrations/20240904084406_fedi_api_reject_interaction.go b/internal/db/bundb/migrations/20240904084406_fedi_api_reject_interaction.go
new file mode 100644
index 000000000..d97d35372
--- /dev/null
+++ b/internal/db/bundb/migrations/20240904084406_fedi_api_reject_interaction.go
@@ -0,0 +1,67 @@
+// 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 migrations
+
+import (
+	"context"
+
+	"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
+	"github.com/uptrace/bun"
+)
+
+func init() {
+	up := func(ctx context.Context, db *bun.DB) error {
+		return db.RunInTx(ctx, nil, func(ctx context.Context, tx bun.Tx) error {
+			if _, err := tx.
+				NewCreateTable().
+				Model(&gtsmodel.SinBinStatus{}).
+				IfNotExists().
+				Exec(ctx); err != nil {
+				return err
+			}
+
+			for idx, col := range map[string]string{
+				"sin_bin_statuses_account_uri_idx":     "account_uri",
+				"sin_bin_statuses_domain_idx":          "domain",
+				"sin_bin_statuses_in_reply_to_uri_idx": "in_reply_to_uri",
+			} {
+				if _, err := tx.
+					NewCreateIndex().
+					Table("sin_bin_statuses").
+					Index(idx).
+					Column(col).
+					IfNotExists().
+					Exec(ctx); err != nil {
+					return err
+				}
+			}
+
+			return nil
+		})
+	}
+
+	down := func(ctx context.Context, db *bun.DB) error {
+		return db.RunInTx(ctx, nil, func(ctx context.Context, tx bun.Tx) error {
+			return nil
+		})
+	}
+
+	if err := Migrations.Register(up, down); err != nil {
+		panic(err)
+	}
+}
diff --git a/internal/db/bundb/sinbinstatus.go b/internal/db/bundb/sinbinstatus.go
new file mode 100644
index 000000000..5fc368022
--- /dev/null
+++ b/internal/db/bundb/sinbinstatus.go
@@ -0,0 +1,122 @@
+// 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"
+	"time"
+
+	"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
+	"github.com/superseriousbusiness/gotosocial/internal/state"
+	"github.com/uptrace/bun"
+)
+
+type sinBinStatusDB struct {
+	db    *bun.DB
+	state *state.State
+}
+
+func (s *sinBinStatusDB) GetSinBinStatusByID(ctx context.Context, id string) (*gtsmodel.SinBinStatus, error) {
+	return s.getSinBinStatus(
+		"ID",
+		func(sbStatus *gtsmodel.SinBinStatus) error {
+			return s.db.
+				NewSelect().
+				Model(sbStatus).
+				Where("? = ?", bun.Ident("sin_bin_status.id"), id).
+				Scan(ctx)
+		},
+		id,
+	)
+}
+
+func (s *sinBinStatusDB) GetSinBinStatusByURI(ctx context.Context, uri string) (*gtsmodel.SinBinStatus, error) {
+	return s.getSinBinStatus(
+		"URI",
+		func(sbStatus *gtsmodel.SinBinStatus) error {
+			return s.db.
+				NewSelect().
+				Model(sbStatus).
+				Where("? = ?", bun.Ident("sin_bin_status.uri"), uri).
+				Scan(ctx)
+		},
+		uri,
+	)
+}
+
+func (s *sinBinStatusDB) getSinBinStatus(
+	lookup string,
+	dbQuery func(*gtsmodel.SinBinStatus) error,
+	keyParts ...any,
+) (*gtsmodel.SinBinStatus, error) {
+	// Fetch from database cache with loader callback.
+	return s.state.Caches.DB.SinBinStatus.LoadOne(lookup, func() (*gtsmodel.SinBinStatus, error) {
+		// Not cached! Perform database query.
+		sbStatus := new(gtsmodel.SinBinStatus)
+		if err := dbQuery(sbStatus); err != nil {
+			return nil, err
+		}
+
+		return sbStatus, nil
+	}, keyParts...)
+}
+
+func (s *sinBinStatusDB) PutSinBinStatus(ctx context.Context, sbStatus *gtsmodel.SinBinStatus) error {
+	return s.state.Caches.DB.SinBinStatus.Store(sbStatus, func() error {
+		_, err := s.db.
+			NewInsert().
+			Model(sbStatus).
+			Exec(ctx)
+		return err
+	})
+}
+
+func (s *sinBinStatusDB) UpdateSinBinStatus(
+	ctx context.Context,
+	sbStatus *gtsmodel.SinBinStatus,
+	columns ...string,
+) error {
+	sbStatus.UpdatedAt = time.Now()
+	if len(columns) > 0 {
+		// If we're updating by column,
+		// ensure "updated_at" is included.
+		columns = append(columns, "updated_at")
+	}
+
+	return s.state.Caches.DB.SinBinStatus.Store(sbStatus, func() error {
+		_, err := s.db.
+			NewUpdate().
+			Model(sbStatus).
+			Column(columns...).
+			Where("? = ?", bun.Ident("sin_bin_status.id"), sbStatus.ID).
+			Exec(ctx)
+		return err
+	})
+}
+
+func (s *sinBinStatusDB) DeleteSinBinStatusByID(ctx context.Context, id string) error {
+	// On return ensure status invalidated from cache.
+	defer s.state.Caches.DB.SinBinStatus.Invalidate("ID", id)
+
+	_, err := s.db.
+		NewDelete().
+		TableExpr("? AS ?", bun.Ident("sin_bin_statuses"), bun.Ident("sin_bin_status")).
+		Where("? = ?", bun.Ident("sin_bin_status.id"), id).
+		Exec(ctx)
+	return err
+}
diff --git a/internal/db/db.go b/internal/db/db.go
index cd621871a..c42985912 100644
--- a/internal/db/db.go
+++ b/internal/db/db.go
@@ -48,6 +48,7 @@ type DB interface {
 	Rule
 	Search
 	Session
+	SinBinStatus
 	Status
 	StatusBookmark
 	StatusFave
diff --git a/internal/db/sinbinstatus.go b/internal/db/sinbinstatus.go
new file mode 100644
index 000000000..16abcf8bd
--- /dev/null
+++ b/internal/db/sinbinstatus.go
@@ -0,0 +1,41 @@
+// 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 db
+
+import (
+	"context"
+
+	"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
+)
+
+type SinBinStatus interface {
+	// GetSinBinStatusByID fetches the sin bin status from the database with matching id column.
+	GetSinBinStatusByID(ctx context.Context, id string) (*gtsmodel.SinBinStatus, error)
+
+	// GetSinBinStatusByURI fetches the sin bin status from the database with matching uri column.
+	GetSinBinStatusByURI(ctx context.Context, uri string) (*gtsmodel.SinBinStatus, error)
+
+	// PutSinBinStatus stores one sin bin status in the database.
+	PutSinBinStatus(ctx context.Context, sbStatus *gtsmodel.SinBinStatus) error
+
+	// UpdateSinBinStatus updates one sin bin status in the database.
+	UpdateSinBinStatus(ctx context.Context, sbStatus *gtsmodel.SinBinStatus, columns ...string) error
+
+	// DeleteSinBinStatusByID deletes one sin bin status from the database.
+	DeleteSinBinStatusByID(ctx context.Context, id string) error
+}