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/*
GoToSocial
Copyright (C) 2021-2022 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 bundb
import (
"context"
"strings"
"github.com/superseriousbusiness/gotosocial/internal/cache"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/log"
"github.com/uptrace/bun"
)
type emojiDB struct {
conn *DBConn
cache *cache.EmojiCache
}
func (e *emojiDB) newEmojiQ(emoji *gtsmodel.Emoji) *bun.SelectQuery {
return e.conn.
NewSelect().
Model(emoji)
}
func (e *emojiDB) PutEmoji(ctx context.Context, emoji *gtsmodel.Emoji) db.Error {
if _, err := e.conn.NewInsert().Model(emoji).Exec(ctx); err != nil {
return e.conn.ProcessError(err)
}
e.cache.Put(emoji)
return nil
}
func (e *emojiDB) GetCustomEmojis(ctx context.Context) ([]*gtsmodel.Emoji, db.Error) {
emojiIDs := []string{}
q := e.conn.
NewSelect().
TableExpr("? AS ?", bun.Ident("emojis"), bun.Ident("emoji")).
Column("emoji.id").
Where("? = ?", bun.Ident("emoji.visible_in_picker"), true).
Where("? = ?", bun.Ident("emoji.disabled"), false).
Where("? IS NULL", bun.Ident("emoji.domain")).
Order("emoji.shortcode ASC")
if err := q.Scan(ctx, &emojiIDs); err != nil {
return nil, e.conn.ProcessError(err)
}
return e.emojisFromIDs(ctx, emojiIDs)
}
func (e *emojiDB) GetEmojiByID(ctx context.Context, id string) (*gtsmodel.Emoji, db.Error) {
return e.getEmoji(
ctx,
func() (*gtsmodel.Emoji, bool) {
return e.cache.GetByID(id)
},
func(emoji *gtsmodel.Emoji) error {
return e.newEmojiQ(emoji).Where("? = ?", bun.Ident("emoji.id"), id).Scan(ctx)
},
)
}
func (e *emojiDB) GetEmojiByURI(ctx context.Context, uri string) (*gtsmodel.Emoji, db.Error) {
return e.getEmoji(
ctx,
func() (*gtsmodel.Emoji, bool) {
return e.cache.GetByURI(uri)
},
func(emoji *gtsmodel.Emoji) error {
return e.newEmojiQ(emoji).Where("? = ?", bun.Ident("emoji.uri"), uri).Scan(ctx)
},
)
}
func (e *emojiDB) GetEmojiByShortcodeDomain(ctx context.Context, shortcode string, domain string) (*gtsmodel.Emoji, db.Error) {
return e.getEmoji(
ctx,
func() (*gtsmodel.Emoji, bool) {
return e.cache.GetByShortcodeDomain(shortcode, domain)
},
func(emoji *gtsmodel.Emoji) error {
q := e.newEmojiQ(emoji)
if domain != "" {
q = q.Where("? = ?", bun.Ident("emoji.shortcode"), shortcode)
q = q.Where("? = ?", bun.Ident("emoji.domain"), domain)
} else {
q = q.Where("? = ?", bun.Ident("emoji.shortcode"), strings.ToLower(shortcode))
q = q.Where("? IS NULL", bun.Ident("emoji.domain"))
}
return q.Scan(ctx)
},
)
}
func (e *emojiDB) getEmoji(ctx context.Context, cacheGet func() (*gtsmodel.Emoji, bool), dbQuery func(*gtsmodel.Emoji) error) (*gtsmodel.Emoji, db.Error) {
// Attempt to fetch cached emoji
emoji, cached := cacheGet()
if !cached {
emoji = >smodel.Emoji{}
// Not cached! Perform database query
err := dbQuery(emoji)
if err != nil {
return nil, e.conn.ProcessError(err)
}
// Place in the cache
e.cache.Put(emoji)
}
return emoji, nil
}
func (e *emojiDB) emojisFromIDs(ctx context.Context, emojiIDs []string) ([]*gtsmodel.Emoji, db.Error) {
// Catch case of no emojis early
if len(emojiIDs) == 0 {
return nil, db.ErrNoEntries
}
emojis := make([]*gtsmodel.Emoji, 0, len(emojiIDs))
for _, id := range emojiIDs {
emoji, err := e.GetEmojiByID(ctx, id)
if err != nil {
log.Errorf("emojisFromIDs: error getting emoji %q: %v", id, err)
}
emojis = append(emojis, emoji)
}
return emojis, nil
}
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