53 lines
1.1 KiB
Go
53 lines
1.1 KiB
Go
package storage
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import (
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"context"
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"database/sql"
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"fmt"
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_ "modernc.org/sqlite"
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)
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type Storage struct {
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db *sql.DB
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}
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func Open(path string) (*Storage, error) {
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db, err := sql.Open("sqlite", path+"?_pragma=journal_mode(wal)&_pragma=busy_timeout(5000)")
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if err != nil {
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return nil, fmt.Errorf("open sqlite: %w", err)
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}
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if err := db.Ping(); err != nil {
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db.Close()
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return nil, fmt.Errorf("ping sqlite: %w", err)
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}
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s := &Storage{db: db}
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if err := s.migrate(context.Background()); err != nil {
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db.Close()
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return nil, fmt.Errorf("migrate: %w", err)
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}
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return s, nil
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}
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func (s *Storage) Close() error {
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return s.db.Close()
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}
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func (s *Storage) migrate(ctx context.Context) error {
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const ddl = `
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CREATE TABLE IF NOT EXISTS show_history (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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memo_name TEXT NOT NULL,
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shown_at INTEGER NOT NULL,
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tier INTEGER NOT NULL DEFAULT 0
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);
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CREATE INDEX IF NOT EXISTS idx_show_history_memo ON show_history(memo_name);
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CREATE INDEX IF NOT EXISTS idx_show_history_shown_at ON show_history(shown_at);
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`
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_, err := s.db.ExecContext(ctx, ddl)
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return err
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}
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