#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# This file is part of Librarian, licensed under GNU Affero GPLv3 or later.
# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
#
import os.path
import optparse

from librarian import epub, DirDocProvider, ParseError


if __name__ == '__main__':
    # Parse commandline arguments
    usage = """Usage: %prog [options] SOURCE [SOURCE...]
    Convert SOURCE files to EPUB format."""

    parser = optparse.OptionParser(usage=usage)

    parser.add_option('-v', '--verbose', action='store_true', dest='verbose', default=False,
        help='print status messages to stdout')
    parser.add_option('-d', '--make-dir', action='store_true', dest='make_dir', default=False,
                      help='create a directory for author and put the PDF in it')
    parser.add_option('-o', '--output-file', dest='output_file', metavar='FILE',
                      help='specifies the output file')
    parser.add_option('-O', '--output-dir', dest='output_dir', metavar='DIR',
                      help='specifies the directory for output')

    options, input_filenames = parser.parse_args()

    if len(input_filenames) < 1:
        parser.print_help()
        exit(1)

    # Do some real work
    try:
        for main_input in input_filenames:
            if options.verbose:
                print main_input
            path, fname = os.path.realpath(main_input).rsplit('/', 1)
            provider = DirDocProvider(path)

            output_dir = output_file = None
            if options.output_dir:
                output_dir = options.output_dir
            elif options.output_file:
                output_file = options.output_file
            else:
                output_dir = path

            epub.transform(provider, file_path=main_input, output_dir=output_dir, output_file=output_file, make_dir=options.make_dir)
    except ParseError, e:
        print '%(file)s:%(name)s:%(message)s' % {
            'file': main_input,
            'name': e.__class__.__name__,
            'message': e.message
        }