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package chain
import (
"errors"
"fmt"
"lindenii.org/go/furgit/object/id"
"lindenii.org/go/furgit/object/store"
"lindenii.org/go/furgit/object/typ"
)
// ReadBytesFull reads a full serialized object
// from the first backend that has it.
func (chain *Chain) ReadBytesFull(id id.ObjectID) ([]byte, error) {
for _, backend := range chain.backends {
full, err := backend.ReadBytesFull(id)
if err == nil {
return full, nil
}
if errors.Is(err, store.ErrObjectNotFound) {
continue
}
return nil, fmt.Errorf("object/store/chain: read bytes full: %w", err)
}
return nil, store.ErrObjectNotFound
}
// ReadBytesContent reads an object's type and content bytes
// from the first backend that has it.
func (chain *Chain) ReadBytesContent(id id.ObjectID) (typ.Type, []byte, error) {
for _, backend := range chain.backends {
ty, content, err := backend.ReadBytesContent(id)
if err == nil {
return ty, content, nil
}
if errors.Is(err, store.ErrObjectNotFound) {
continue
}
return typ.Unknown, nil, fmt.Errorf("object/store/chain: read bytes content: %w", err)
}
return typ.Unknown, nil, store.ErrObjectNotFound
}
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