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historyposter/store/store.go

97 lines
1.8 KiB

package store
import (
"database/sql"
"fmt"
"os"
"git.eeqj.de/sneak/goutil"
"github.com/rs/zerolog/log"
)
const tablename string = "postedUrls"
type Store struct {
dbdir string
dbfn string
db *sql.DB
}
func NewStore() (*Store, error) {
s := new(Store)
s.dbdir = os.Getenv("HOME") + "/Library/Application Support/historyposter"
err := goutil.Mkdirp(s.dbdir)
if err != nil {
log.Error().
Err(err).
Str("dir", s.dbdir).
Msg("unable to create directory")
return nil, err
}
s.dbfn = s.dbdir + "/postedurlstore.db"
log.Info().Msg("opening store db")
db, err := sql.Open("sqlite3", s.dbfn)
if err != nil {
log.Error().Err(err)
return nil, err
}
s.db = db
if s.CreateTables() != nil {
log.Error().
Err(err).
Msg("unable to create tables")
return nil, err
}
return s, nil
}
func (s *Store) CreateTables() error {
q := fmt.Sprintf(`
CREATE TABLE IF NOT EXISTS %s (
id INTEGER PRIMARY KEY AUTOINCREMENT,
url VARCHAR(255) NOT NULL,
posted DATE NULL
);
`, tablename)
_, err := s.db.Exec(q)
return err
}
func (s *Store) Close() {
log.Info().Msg("closing store db")
s.db.Close()
}
func (s *Store) MarkURLSeen(url string) {
q := fmt.Sprintf(`INSERT into %s (url, posted) VALUES (?, date('now'));`, tablename)
_, err := s.db.Exec(q, url)
if err != nil {
log.Error().
Str("url", url).
Err(err).Msg("unable to insert url into db")
}
log.Debug().
Str("url", url).
Msg("url added to db")
}
func (s *Store) URLAlreadySeen(url string) bool {
q := fmt.Sprintf(`select id from %s where url = ?;`, tablename)
row := s.db.QueryRow(q, url)
var id int
err := row.Scan(&id)
if err == sql.ErrNoRows {
return false
}
if err != nil {
log.Error().Err(err).Msg("sql error looking up url")
return false
}
if id > 0 {
return true
}
log.Fatal().Msg("shouldn't happen")
return false
}