#!/usr/bin/python
# -*- coding: utf-8 -*-
# __author__ = 'szhdanoff@gmail.com'
import os
import time
import csv
import phonenumbers

from email_validator import validate_email, EmailNotValidError
from dotenv import load_dotenv
# local imports
from dinect_api import get_user
from dinect_api import new_user

load_dotenv()

is_prod = bool(os.getenv('PRODUCTION', False))
COUNTRY = os.getenv('COUNTRY', 'RU')


csv_path = os.path.join(os.path.dirname(os.path.realpath(__file__)), 'csv')

files = []
# r=root, d=directories, f = files
for r, d, f in os.walk(csv_path):
    for file in f:
        filename, file_extension = os.path.splitext(file)
        if file_extension == '.csv':
            files.append(os.path.join(r, file))

for f in files:
    with open(f + f'-{time.strftime("%Y%m%d-%H%M%S", time.localtime())}.log', "w", encoding="utf-8") as log_file:
        with open(f, "r", encoding="utf-8") as csv_file:
            file_name = os.path.basename(f)
            # USERS file
            if 'users' in file_name:
                print(f'Processing "users" file: {f}')
                csv_reader = csv.reader(csv_file, delimiter=',')
                line_count = 0
                for row in csv_reader:
                    if line_count == 0:
                        line_count += 1
                    else:
                        try:
                            print(f'Processing line {line_count}: {row}')
                            nickname, full_name, card, phone, email, gender = row
                            # strip whitespaces
                            nickname = nickname.strip()
                            full_name = full_name.strip()
                            card = card.strip()
                            # validate phone
                            phone = phone.strip()
                            try:
                                parsed_phone = phonenumbers.parse(phone, region=COUNTRY)
                                if phonenumbers.is_valid_number(parsed_phone):
                                    phone = phonenumbers.format_number(parsed_phone, phonenumbers.PhoneNumberFormat.E164)
                            except:
                                print(f'error in line: [{line_count}]- Invalid phone number: {phone}')
                                log_file.write(f'error in line: [{line_count}]- Invalid phone number: {phone}\n')
                            # validate email
                            email = email.strip()
                            try:
                                email_info = validate_email(email, check_deliverability=False)
                                email = email_info.normalized
                            except EmailNotValidError as e:
                                print(f'error in line: [{line_count}]- Invalid email: {email}')
                                log_file.write(f'error in line: [{line_count}]- Invalid email: {email}\n')

                            # validate / set gender
                            gender = gender.strip()
                            if gender not in ['M', 'F']:
                                gender = 'M'

                            line_count += 1
                        except ValueError as e:
                            ret = f'Unexpected error in line: [{line_count}] {repr(e)}'
                            log_file.write(f'{ret}\n')
                        # Updating the database via the API
                        user_found, user_id, user_card, purchases_url, data = get_user(card)

                        if not user_found:
                            user_created, data = new_user('Иван тестов', '79039426495')
                            if user_created:
                                # log_file.write(f'error in line: [{line_count}]- Invalid user data: {data}\n')
                                print('User created with', data['ID'], data['DIN'])
                            else:
                                log_file.write(f'error in line: [{line_count}]- Invalid user data: {data}\n')




            # TRANSACTIONS file
            if 'transaction' in file_name:
                print(f'Processing "transaction" file: {f}')
                csv_reader = csv.reader(csv_file, delimiter=',')
                line_count = 0
                for row in csv_reader:
                    if line_count == 0:
                        line_count += 1
                    else:
                        try:
                            print(f'Processing line {line_count}: {row}')
                            user_id, card, phone, summ_total, summ_discount, sum_with_discount, bonus_amount, transaction_date, transaction_time = row
                            line_count += 1

                        except ValueError as e:
                            ret = f'error in line: [{line_count}] {repr(e)}'
                            log_file.write(f'{ret}\n')

            csv_file.close()
        log_file.close()

        # os.rename(f, f + '.old')