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store.go
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store.go
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package store
import (
"github.com/dgraph-io/badger/v3"
"github.com/pkg/errors"
"github.com/timshannon/badgerhold/v4"
"github.com/c13n-io/c13n-go/slog"
)
type bhDatabase struct {
logger *slog.Logger
bhOptions badgerhold.Options
bh *badgerhold.Store
}
// WithLogger sets the database logger.
func WithLogger(logger *slog.Logger) func(Database) {
return func(db Database) {
if bhdb, ok := db.(*bhDatabase); ok {
bhdb.logger = logger
}
}
}
// WithBadgerOption sets a badger option.
// Useful for passing badger options to badgerhold.
func WithBadgerOption(f func(badger.Options) badger.Options) func(Database) {
return func(db Database) {
if bhdb, ok := db.(*bhDatabase); ok {
bhdb.bhOptions.Options = f(bhdb.bhOptions.Options)
}
}
}
// New opens and returns a database object.
func New(dbDir string, options ...func(Database)) (Database, error) {
bhOpts := badgerhold.DefaultOptions
bhOpts.Dir, bhOpts.ValueDir = dbDir, dbDir
db := &bhDatabase{
bhOptions: bhOpts,
}
// Apply all database options.
for _, option := range options {
option(db)
}
// Set the logger instance, if unset.
if db.logger == nil {
db.logger = slog.NewLogger("database")
}
db.bhOptions.Options = db.bhOptions.Options.WithLogger(db.logger)
// Open the badgerhold instance.
var err error
if db.bh, err = badgerhold.Open(db.bhOptions); err != nil {
return nil, errors.Wrap(err, "Could not open database")
}
return db, nil
}
// Close closees the database and returns any encountered error.
func (db *bhDatabase) Close() error {
return db.bh.Close()
}