1 files changed, 119 insertions, 0 deletions
diff --git a/internal/db/bundb/tag.go b/internal/db/bundb/tag.go
new file mode 100644
index 000000000..043af5728
--- /dev/null
+++ b/internal/db/bundb/tag.go
@@ -0,0 +1,119 @@
+// 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"
+	"strings"
+
+	"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
+	"github.com/superseriousbusiness/gotosocial/internal/log"
+	"github.com/superseriousbusiness/gotosocial/internal/state"
+	"github.com/uptrace/bun"
+)
+
+type tagDB struct {
+	conn  *WrappedDB
+	state *state.State
+}
+
+func (m *tagDB) GetTag(ctx context.Context, id string) (*gtsmodel.Tag, error) {
+	return m.state.Caches.GTS.Tag().Load("ID", func() (*gtsmodel.Tag, error) {
+		var tag gtsmodel.Tag
+
+		q := m.conn.
+			NewSelect().
+			Model(&tag).
+			Where("? = ?", bun.Ident("tag.id"), id)
+
+		if err := q.Scan(ctx); err != nil {
+			return nil, m.conn.ProcessError(err)
+		}
+
+		return &tag, nil
+	}, id)
+}
+
+func (m *tagDB) GetTagByName(ctx context.Context, name string) (*gtsmodel.Tag, error) {
+	// Normalize 'name' string.
+	name = strings.TrimSpace(name)
+	name = strings.ToLower(name)
+
+	return m.state.Caches.GTS.Tag().Load("Name", func() (*gtsmodel.Tag, error) {
+		var tag gtsmodel.Tag
+
+		q := m.conn.
+			NewSelect().
+			Model(&tag).
+			Where("? = ?", bun.Ident("tag.name"), name)
+
+		if err := q.Scan(ctx); err != nil {
+			return nil, m.conn.ProcessError(err)
+		}
+
+		return &tag, nil
+	}, name)
+}
+
+func (m *tagDB) GetTags(ctx context.Context, ids []string) ([]*gtsmodel.Tag, error) {
+	tags := make([]*gtsmodel.Tag, 0, len(ids))
+
+	for _, id := range ids {
+		// Attempt fetch from DB
+		tag, err := m.GetTag(ctx, id)
+		if err != nil {
+			log.Errorf(ctx, "error getting tag %q: %v", id, err)
+			continue
+		}
+
+		// Append tag
+		tags = append(tags, tag)
+	}
+
+	return tags, nil
+}
+
+func (m *tagDB) PutTag(ctx context.Context, tag *gtsmodel.Tag) error {
+	// Normalize 'name' string before it enters
+	// the db, without changing tag we were given.
+	//
+	// First copy tag to new pointer.
+	t2 := new(gtsmodel.Tag)
+	*t2 = *tag
+
+	// Normalize name on new pointer.
+	t2.Name = strings.TrimSpace(t2.Name)
+	t2.Name = strings.ToLower(t2.Name)
+
+	// Insert the copy.
+	if err := m.state.Caches.GTS.Tag().Store(t2, func() error {
+		_, err := m.conn.NewInsert().Model(t2).Exec(ctx)
+		return m.conn.ProcessError(err)
+	}); err != nil {
+		return err // err already processed
+	}
+
+	// Update original tag with
+	// field values populated by db.
+	tag.CreatedAt = t2.CreatedAt
+	tag.UpdatedAt = t2.UpdatedAt
+	tag.Useable = t2.Useable
+	tag.Listable = t2.Listable
+
+	return nil
+}