getting close to working, switching to work on server for a sec

store/store.go

@@ -0,0 +1,97 @@
+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
+}