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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1 @@ | ||
| *.sqlite* |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,121 @@ | ||
| package main | ||
|
|
||
| import ( | ||
| "database/sql" | ||
| "time" | ||
|
|
||
| "github.com/lbryio/lbry.go/v2/extras/errors" | ||
| "github.com/lbryio/ytsync/v5/pubrelay/gohubbub" | ||
| ) | ||
|
|
||
| const sqlTimeFormat = "2006-01-02 15:04:05" | ||
|
|
||
| func initDB(dbFile string) (*sql.DB, error) { | ||
| db, err := sql.Open("sqlite3", "file:"+dbFile+"?mode=rwc") | ||
| if err != nil { | ||
| return nil, errors.Err(err) | ||
| } | ||
|
|
||
| _, err = db.Exec(`CREATE TABLE IF NOT EXISTS channel ( | ||
| id TEXT NOT NULL PRIMARY KEY | ||
| )`) | ||
| if err != nil { | ||
| return nil, errors.Err(err) | ||
| } | ||
|
|
||
| _, err = db.Exec(`CREATE TABLE IF NOT EXISTS notification ( | ||
| id INTEGER NOT NULL PRIMARY KEY, | ||
| channel_id TEXT, | ||
| video_id TEXT, | ||
| published_at DATETIME, | ||
| last_attempted_at DATETIME | ||
| )`) | ||
| if err != nil { | ||
| return nil, errors.Err(err) | ||
| } | ||
|
|
||
| _, err = db.Exec(`CREATE UNIQUE INDEX IF NOT EXISTS channel_and_video_idx ON notification (channel_id, video_id)`) | ||
| if err != nil { | ||
| return nil, errors.Err(err) | ||
| } | ||
|
|
||
| _, err = db.Exec(`CREATE INDEX IF NOT EXISTS last_attempted_at_idx ON notification (last_attempted_at)`) | ||
| if err != nil { | ||
| return nil, errors.Err(err) | ||
| } | ||
|
|
||
| return db, nil | ||
| } | ||
|
|
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| func subscribeFromDB(db *sql.DB, s *gohubbub.Client) (err error) { | ||
| var rows *sql.Rows | ||
| rows, err = db.Query("SELECT id FROM channel") | ||
| if err != nil { | ||
| return errors.Err(err) | ||
| } | ||
| defer closeRows(rows, &err) | ||
|
|
||
| var channelID string | ||
| for rows.Next() { | ||
| err = rows.Scan(&channelID) | ||
| if err != nil { | ||
| return errors.Err(err) | ||
| } | ||
| subscribe(db, s, channelID) | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
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| func insertNewChannel(db *sql.DB, channelID string) error { | ||
| _, err := db.Exec(`INSERT OR IGNORE INTO channel (id) VALUES (?)`, channelID) | ||
| return errors.Err(err) | ||
| } | ||
|
|
||
| func touchFailedNotification(db *sql.DB, e entry) error { | ||
| _, err := db.Exec( | ||
| `INSERT INTO notification | ||
| (channel_id, video_id, published_at, last_attempted_at) VALUES (?,?,?,?) | ||
| ON CONFLICT (channel_id, video_id) DO UPDATE SET last_attempted_at = excluded.last_attempted_at`, | ||
| e.ChannelId, e.VideoId, e.PublishedAt, time.Now().UTC().Format(sqlTimeFormat), | ||
| ) | ||
| return errors.Err(err) | ||
| } | ||
|
|
||
| func getNotificationsToRetry(db *sql.DB, since time.Time) (entries []entry, err error) { | ||
| var rows *sql.Rows | ||
| rows, err = db.Query( | ||
| `SELECT channel_id, video_id, published_at FROM notification WHERE last_attempted_at <= ?`, | ||
| since.UTC().Format(sqlTimeFormat), | ||
| ) | ||
| if err != nil { | ||
| return nil, errors.Err(err) | ||
| } | ||
| defer closeRows(rows, &err) | ||
|
|
||
| for rows.Next() { | ||
| var e entry | ||
| err = rows.Scan(&e.ChannelId, &e.VideoId, &e.PublishedAt) | ||
| if err != nil { | ||
| return nil, errors.Err(err) | ||
| } | ||
| entries = append(entries, e) | ||
| } | ||
|
|
||
| return entries, nil | ||
| } | ||
|
|
||
| func deleteNotification(db *sql.DB, e entry) error { | ||
|
|
||
| } | ||
|
|
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| func closeRows(rows *sql.Rows, err *error) { | ||
| closeErr := rows.Close() | ||
| if *err != nil { | ||
| if closeErr != nil { | ||
| *err = errors.Err(closeErr) | ||
| } else { | ||
| *err = errors.Err(rows.Err()) | ||
| } | ||
| } | ||
| } |
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