#!/usr/bin/env python3
# © 2017 James R. Barlow: github.com/jbarlow83
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

import sys
import img2pdf
import PyPDF2 as pypdf
from PIL import Image


"""Tesseract bad utf8 spoof

In 'hocr' mode or 'pdf' mode, return error code 1 and some non-Unicode
text because tesseract seems to do that in some cases related to 
language pack version mismatches

"""


VERSION_STRING = '''tesseract 3.05.01
 leptonica-1.72
  libjpeg 8d : libpng 1.6.19 : libtiff 4.0.6 : zlib 1.2.5
SPOOFED
'''

# Japanese "Invalid UTF-8" encoded in Shift JIS
BAD_UTF8 = b'\x96\xb3\x8c\xf8\x82\xc8UTF-8\x0a'


def main():
    if sys.argv[1] == '--version':
        print(VERSION_STRING, file=sys.stderr)
        sys.exit(0)
    elif sys.argv[1] == '--list-langs':
        print('List of available languages (1):\neng', file=sys.stderr)
        sys.exit(0)
    elif sys.argv[1] == '--print-parameters':
        print("Some parameters", file=sys.stderr)
        print("textonly_pdf\t1\tSome help text")
        sys.exit(0)
    elif sys.argv[-2] in ('hocr', 'pdf'):
        sys.stdout.buffer.write(BAD_UTF8)
        sys.exit(1)
    elif sys.argv[-1] == 'stdout':
        # input file is at sys.argv[-2] but we don't look at it
        print("""Orientation: 0
Orientation in degrees: 0
Orientation confidence: 100.00
Script: 1
Script confidence: 100.00""", file=sys.stderr)
    else:
        print("Spoof doesn't understand arguments", file=sys.stderr)
        print(sys.argv, file=sys.stderr)
        sys.exit(1)

    sys.exit(0)


if __name__ == '__main__':
    main()