03. Descriptions 100/100 with regex

# 03. Descriptions 100/100 with regex
# https://judge.softuni.org/Contests/Practice/Index/1140?fbclid=IwAR0szSoRJQozKH6o_5Bwi1U9Y-5R6OcPT_l6jSJX73WzJq_BmmhONJbVkEc#2


import re

data = input()

pattern_names = r'(name is\s)([A-Z][a-z]+)+\s?([A-Z][a-z]+)'
pattern_years = r'((\d+)\s(years))'
pattern_b_day_data = r'(\d{2}-\d{2}-\d{4}).?'
valid_data = []
db_empty = False
printed_once = False
while not data == 'make migrations':
    matched_names = re.findall(pattern_names, data)
    if matched_names:
        first_name = matched_names[0][1]
        last_name = matched_names[0][2]
        valid_data.append(first_name + " " + last_name)
    else:
        data = input()
        db_empty = True
        continue

    matched_years = re.findall(pattern_years, data)
    if matched_years:
        years_old = int(matched_years[0][1])
        if 9 < years_old <= 99:
            valid_data.append(years_old)
        else:
            matched_years = []
            db_empty = True

    matched_b_day_data = re.findall(pattern_b_day_data, data)
    if matched_b_day_data:
        b_day_data = ''.join(matched_b_day_data)
    else:
        data = input()
        db_empty = True
        continue

    valid_data.append(b_day_data)
    if matched_names and matched_years and matched_b_day_data:
        print(f'Name of the person: {valid_data[0]}.')
        print(f'Age of the person: {valid_data[1]}.')
        print(f'Birthdate of the person: {valid_data[2]}.')
        valid_data.clear()
        printed_once = True
        db_empty = True

    data = input()

if db_empty and not printed_once:
    print('DB is empty')