# -*- coding: utf-8 -*-
from __future__ import print_function
import unittest

import yaml

import dotdot
from pubs import endecoder
from pubs.p3 import ustr

from fixtures import dummy_metadata
from str_fixtures import bibtex_raw0, metadata_raw0, turing_bib


def compare_yaml_str(s1, s2):
    if s1 == s2:
        return True
    else:
        y1 = yaml.safe_load(s1)
        y2 = yaml.safe_load(s2)
        return y1 == y2


class TestEnDecode(unittest.TestCase):

    def test_encode_bibtex_is_unicode(self):
        decoder = endecoder.EnDecoder()
        entry = decoder.decode_bibdata(bibtex_raw0)
        bibraw = decoder.encode_bibdata(entry)
        self.assertIsInstance(bibraw, ustr)

    def test_encode_metadat_is_unicode(self):
        decoder = endecoder.EnDecoder()
        data = decoder.encode_metadata(dummy_metadata)
        self.assertIsInstance(data, ustr)

    def test_endecode_bibtex(self):
        decoder = endecoder.EnDecoder()
        entry = decoder.decode_bibdata(bibtex_raw0)

        bibraw1 = decoder.encode_bibdata(entry)
        entry1  = decoder.decode_bibdata(bibraw1)
        bibraw2 = decoder.encode_bibdata(entry1)
        entry2  = decoder.decode_bibdata(bibraw2)

        for citekey in entry1.keys():
            bibentry1 = entry1[citekey]
            bibentry2 = entry2[citekey]
            for key, value in bibentry1.items():
                self.assertEqual(bibentry1[key], bibentry2[key])

        self.assertEqual(bibraw1, bibraw2)

    def test_endecode_bibtex_editor(self):
        decoder = endecoder.EnDecoder()
        entry = decoder.decode_bibdata(turing_bib)

        bibraw1 = decoder.encode_bibdata(entry)
        entry1  = decoder.decode_bibdata(bibraw1)
        bibraw2 = decoder.encode_bibdata(entry1)
        entry2  = decoder.decode_bibdata(bibraw2)

        for citekey in entry1.keys():
            bibentry1 = entry1[citekey]
            bibentry2 = entry2[citekey]
            for key, value in bibentry1.items():
                self.assertEqual(bibentry1[key], bibentry2[key])
        self.assertEqual(bibraw1, bibraw2)

    def test_endecode_keyword(self):
        decoder = endecoder.EnDecoder()
        entry = decoder.decode_bibdata(turing_bib)
        keywords = ['artificial intelligence', 'Turing test']
        entry['turing1950computing']['keyword'] = keywords
        bibraw = decoder.encode_bibdata(entry)
        entry1 = decoder.decode_bibdata(bibraw)
        self.assertIn('keyword', entry1['turing1950computing'])
        self.assertEqual(set(keywords),
                         set(entry1['turing1950computing']['keyword']))

    def test_endecode_keyword_as_keywords(self):
        decoder = endecoder.EnDecoder()
        keywords = [u'artificial intelligence', u'Turing test']
        # Add keywords to bibraw
        keyword_str = 'keywords = {artificial intelligence, Turing test},\n'
        biblines = turing_bib.splitlines()
        biblines.insert(-3, keyword_str)
        bibsrc = '\n'.join(biblines)
        entry = decoder.decode_bibdata(bibsrc)['turing1950computing']
        self.assertNotIn(u'keywords', entry)
        self.assertIn(u'keyword', entry)
        self.assertEqual(set(keywords), set(entry[u'keyword']))


    def test_endecode_metadata(self):
        decoder = endecoder.EnDecoder()
        entry = decoder.decode_metadata(metadata_raw0)
        metadata_output0 = decoder.encode_metadata(entry)
        self.assertEqual(set(metadata_raw0.split('\n')), set(metadata_output0.split('\n')))


if __name__ == '__main__':
    unittest.main()