import os

from ebook_converter.customize.conversion import OutputFormatPlugin, OptionRecommendation


__license__ = 'GPL 3'
__copyright__ = '2009, John Schember <john@nachtimwald.com>'
__docformat__ = 'restructuredtext en'


class RBOutput(OutputFormatPlugin):

    name = 'RB Output'
    author = 'John Schember'
    file_type = 'rb'
    commit_name = 'rb_output'

    options = {
        OptionRecommendation(name='inline_toc',
            recommended_value=False, level=OptionRecommendation.LOW,
            help=_('Add Table of Contents to beginning of the book.'))}

    def convert(self, oeb_book, output_path, input_plugin, opts, log):
        from ebook_converter.ebooks.rb.writer import RBWriter

        close = False
        if not hasattr(output_path, 'write'):
            close = True
            if not os.path.exists(os.path.dirname(output_path)) and os.path.dirname(output_path):
                os.makedirs(os.path.dirname(output_path))
            out_stream = lopen(output_path, 'wb')
        else:
            out_stream = output_path

        writer = RBWriter(opts, log)

        out_stream.seek(0)
        out_stream.truncate()

        writer.write_content(oeb_book, out_stream, oeb_book.metadata)

        if close:
            out_stream.close()