package zmostp_go

import "io"

var _ io.ByteReader = (*SimpleByteReader)(nil)

// SimpleByteReader implements io.ByteReader for io.Reader.
// Not recommended for production use due to performance issues.
type SimpleByteReader struct {
	reader io.Reader
	buf    []byte
}

// NewSimpleByteReader creates a new SimpleByteReader.
// Not recommended for production use due to performance issues.
func NewSimpleByteReader(reader io.Reader) *SimpleByteReader {
	return &SimpleByteReader{
		reader: reader,
		buf:    make([]byte, 1),
	}
}

func (s SimpleByteReader) ReadByte() (byte, error) {
	_, err := s.reader.Read(s.buf)
	if err != nil {
		return 0, err
	}
	return s.buf[0], nil
}