Tulir Asokan
63 lines
2.0 KiB
Go
63 lines
2.0 KiB
Go
// mautrix-telegram - A Matrix-Telegram puppeting bridge.
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// Copyright (C) 2025 Tulir Asokan
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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package store
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import (
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"context"
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"go.mau.fi/util/dbutil"
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"go.mau.fi/util/exsync"
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)
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type topicKey struct {
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ChannelID int64
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TopicID int
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}
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type TopicQuery struct {
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db *dbutil.Database
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existingTopics *exsync.Set[topicKey]
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}
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const (
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getAllTopicsQuery = `SELECT topic_id FROM telegram_topic WHERE channel_id=$1`
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addTopicQuery = `INSERT INTO telegram_topic (channel_id, topic_id) VALUES ($1, $2) ON CONFLICT DO NOTHING`
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deleteTopicQuery = `DELETE FROM telegram_topic WHERE channel_id=$1 AND topic_id=$2`
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)
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func (s *TopicQuery) Add(ctx context.Context, channelID int64, topicID int) (err error) {
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if channelID == 0 {
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return nil
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}
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if s.existingTopics.Add(topicKey{ChannelID: channelID, TopicID: topicID}) {
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_, err = s.db.Exec(ctx, addTopicQuery, channelID, topicID)
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}
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return
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}
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func (s *TopicQuery) Delete(ctx context.Context, channelID int64, topicID int) (err error) {
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s.existingTopics.Remove(topicKey{ChannelID: channelID, TopicID: topicID})
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_, err = s.db.Exec(ctx, deleteTopicQuery, channelID, topicID)
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return
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}
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var intScanner = dbutil.ConvertRowFn[int](dbutil.ScanSingleColumn[int])
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func (s *TopicQuery) GetAll(ctx context.Context, channelID int64) (topics []int, err error) {
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return intScanner.NewRowIter(s.db.Query(ctx, getAllTopicsQuery, channelID)).AsList()
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}
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