from pathlib import Path
import json
import re
import requests
import time
import os

dictionary_filename = 'efremova.txt'
dictionary_json_filename = 'data.json'
url = 'https://ru.wiktionary.org/wiki/'


def main():
    if not is_exist_dictionary():
        return

    while True:
        print('')
        print('1 - Clear all temporary files')
        print('2 - Generated file {}'.format(dictionary_json_filename))
        print('3 - How many articles need to check on {}'.format(url))
        print('4 - Check the words on {}'.format(dictionary_json_filename))
        print('5 - Print a list of unchecked words on {}'.format(dictionary_json_filename))
        print('6 - Print a list of words on {} with 404 error'.format(dictionary_json_filename))
        print('10 - Exit')

        command = int(input('Enter command number '))
        if command == 1:
            clear_all_temporary_files()
        elif command == 2:
            generated_json()
        elif command == 3:
            how_many_articles_need_to_check()
        elif command == 4:
            check_words_on_site()
        elif command == 5:
            print_list_of_words('null')
        elif command == 6:
            print_list_of_words('404')
        elif command == 10:
            break


def clear_all_temporary_files():
    start = time.time()
    file = Path(dictionary_json_filename)
    if file.is_file():
        os.remove(dictionary_json_filename)
    print('All temporary files deleted')
    end = time.time()
    print_time(start, end)


def generated_json():
    start = time.time()
    if not is_exist_dictionary():
        return

    file = Path(dictionary_filename)
    with open(file, encoding='utf8') as f:
        lines = f.read().splitlines()
    dictionary = dict()
    for line in lines:
        split_line = line.split(' ', 1)
        word = split_line[0]
        definition = split_line[1]

        is_noun_by_dictionary = False
        if re.match(r'(ж|м|ср|мн)\.(.*)$', definition) or re.match(r'(1\.|I) (ж|м|ср|мн)\.(.*)$', definition):
            is_noun_by_dictionary = True

        is_possible_not_noun = False
        if (
                word.endswith('ая') or
                word.endswith('ее') or
                word.endswith('ие') or
                word.endswith('ий') or
                word.endswith('ое') or
                word.endswith('ой') or
                word.endswith('ые') or
                word.endswith('ый') or
                word.endswith('ье') or
                word.endswith('ьи') or
                word.endswith('ья') or
                word.endswith('яя')
        ):
            is_possible_not_noun = True

        entry = dict()
        entry['definition'] = definition
        entry['is_noun_by_dictionary'] = is_noun_by_dictionary
        entry['is_possible_not_noun'] = is_possible_not_noun
        entry['answer_from_wiktionary'] = 'null'
        dictionary[word] = entry

    save_json(dictionary)
    end = time.time()
    print_time(start, end)


def how_many_articles_need_to_check():
    start = time.time()
    if not is_exist_json():
        return
    dictionary = read_json()

    count_all = 0
    count_nouns_by_dictionary = 0
    count_check = 0
    for word, entry in dictionary.items():
        count_all += 1
        if entry['is_noun_by_dictionary']:
            count_nouns_by_dictionary += 1
        if (
                entry['is_noun_by_dictionary'] and
                entry['is_possible_not_noun'] and
                entry['answer_from_wiktionary'] == 'null'
        ):
            count_check += 1

    print('All words: {}'.format(count_all))
    print('All nouns by dictionary: {}'.format(count_nouns_by_dictionary))
    print('It remains to check words: {}'.format(count_check))
    end = time.time()
    print_time(start, end)


def print_list_of_words(answer_from_wiktionary):
    start = time.time()
    if not is_exist_json():
        return
    dictionary = read_json()

    count = 0
    for word, entry in dictionary.items():
        if entry['is_noun_by_dictionary'] and entry['is_possible_not_noun']:
            is_print = False

            if answer_from_wiktionary == 'null' and entry['answer_from_wiktionary'] == 'null':
                is_print = True

            if answer_from_wiktionary == '404' and entry['answer_from_wiktionary'] == 404:
                is_print = True

            if is_print:
                print(word)
                print('answer_from_wiktionary = {}'.format(entry['answer_from_wiktionary']))
                print('-------------------------')
                count += 1

    print('Words: {}'.format(count))
    end = time.time()
    print_time(start, end)


def check_words_on_site():
    start = time.time()
    if not is_exist_json():
        return
    dictionary = read_json()

    i = 0
    for word, entry in dictionary.items():
        if (
                entry['is_noun_by_dictionary'] and
                entry['is_possible_not_noun'] and
                entry['answer_from_wiktionary'] == 'null'
        ):
            try:
                response = requests.get(url + word)
                print('{} status_code = {}'.format(word, response.status_code))
                if response.status_code == 200:
                    html = response.text
                    is_noun_by_wiktionary = False
                    is_not_noun_by_wiktionary = False
                    if (
                            'title="существительное">Существительное</a>' in html or
                            'Существительное.' in html or
                            'title="выступает в роли существительного">субстантивир.</span>' in html or
                            ('Существительное' in html and 'Прилагательное' not in html) or
                            'Существительное, одушевлённое,  тип склонения по ' in html
                    ):
                        is_noun_by_wiktionary = True

                    if (
                            'title="прилагательное">Прилагательное</a>' in html or
                            'title="причастие">Причастие</a>' in html or
                            'title="причастие">причастие</a>' in html or
                            'title="наречие">Наречие</a>' in html or
                            'title="деепричастие">деепричастие</a>' in html or
                            ('Существительное' not in html and 'Прилагательное' in html) or
                            ('Существительное' not in html and 'прилагательного' in html) or
                            ('Существительное' not in html and 'Местоименное прилагательное' in html) or
                            ('Существительное' not in html and 'Притяжательное местоимение' in html) or
                            ('Существительное' not in html and 'Притяжательное прилагательное' in html) or
                            ('Существительное' not in html and 'Числительное' in html) or
                            ('Существительное' not in html and 'Порядковое числительное' in html) or
                            ('Существительное' not in html and 'Местоимение' in html) or
                            ('Существительное' not in html and 'Указательное местоимение' in html)
                    ):
                        is_not_noun_by_wiktionary = True

                    if is_noun_by_wiktionary:
                        dictionary[word]['answer_from_wiktionary'] = 'noun'
                        print('answer_from_wiktionary = noun')

                    if is_not_noun_by_wiktionary:
                        dictionary[word]['answer_from_wiktionary'] = 'not_noun'
                        print('answer_from_wiktionary = not_noun')

                    if not is_noun_by_wiktionary and not is_not_noun_by_wiktionary:
                        print('Need more checks')
                else:
                    dictionary[word]['answer_from_wiktionary'] = response.status_code
                    print('url = {}'.format(response.url))
                print('-------------------------')

                i += 1
                if i % 100 == 0:
                    save_json(dictionary)
            except ConnectionError:
                print("Error: ConnectionError")
                time.sleep(1)

    save_json(dictionary)
    print('Analysis of a dictionary using the {} ended'.format(url))
    end = time.time()
    print_time(start, end)


def print_time(start, end):
    print('Function execution time: {}'.format(end - start))


def save_json(dictionary):
    file = Path(dictionary_json_filename)
    action = 'updated' if file.is_file() else 'created'
    with open(dictionary_json_filename, 'w', encoding='utf8') as outfile:
        json.dump(dictionary, outfile, ensure_ascii=False, indent=4)
    print('File {} {}'.format(dictionary_json_filename, action))


def read_json():
    file = Path(dictionary_json_filename)
    with open(file, encoding='utf8') as f:
        dictionary = json.loads(f.read())
    print('File ' + dictionary_json_filename + ' opened')
    return dictionary


def is_exist_json():
    file = Path(dictionary_json_filename)
    if not file.is_file():
        print('File {} not exists. This file needs to be generated.'.format(dictionary_json_filename))
    return file.is_file()


def is_exist_dictionary():
    file = Path(dictionary_filename)
    if not file.is_file():
        print('File {} not exists. The program cannot work.'.format(dictionary_filename))
    return file.is_file()


def test():
    pass


if __name__ == '__main__':
    main()