1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
# frozen_string_literal: true
module FFaker
module IdentificationFI
extend ModuleUtils
extend self
CHECK_DIGITS = '0123456789ABCDEFHJKLMNPRSTUVWXY'
# Number ranges in real use
POSSIBLY_REAL_FEMALE_INDIVIDUAL_NUMBERS = (2..898).step(2).to_a.freeze
POSSIBLY_REAL_MALE_INDIVIDUAL_NUMBERS = (3..899).step(2).to_a.freeze
# Number ranges not in real use
FAKE_FEMALE_INDIVIDUAL_NUMBERS = (900..998).step(2).to_a.freeze
FAKE_MALE_INDIVIDUAL_NUMBERS = (901..999).step(2).to_a.freeze
def identity_number(gender: FFaker::Gender.binary, birthday: FFaker::Date.birthday, fake: true)
day = fetch_formatted_day(birthday)
month = fetch_formatted_month(birthday)
year = fetch_formatted_year(birthday)
separator = fetch_separator(birthday)
individual_number = fetch_individual_number(gender, fake)
check_digit = calculate_check_digit(birthday, individual_number)
"#{day}#{month}#{year}#{separator}#{individual_number}#{check_digit}"
end
private
def fetch_formatted_day(birthday)
format('%.2d', birthday.day)
end
def fetch_formatted_month(birthday)
format('%.2d', birthday.month)
end
def fetch_formatted_year(birthday)
check_birth_year(birthday.year)
birthday.strftime('%y')
end
def fetch_separator(birthday)
case birthday.year
when ..1899
'+'
when 1900..1999
'-'
else
'A'
end
end
def fetch_individual_number(gender, fake)
numbers_range = if gender == 'female'
fake ? FAKE_FEMALE_INDIVIDUAL_NUMBERS : POSSIBLY_REAL_FEMALE_INDIVIDUAL_NUMBERS
else
fake ? FAKE_MALE_INDIVIDUAL_NUMBERS : POSSIBLY_REAL_MALE_INDIVIDUAL_NUMBERS
end
format('%.3d', fetch_sample(numbers_range))
end
def calculate_check_digit(birthday, individual_number)
digit = "#{birthday.day}#{fetch_formatted_month(birthday)}#{fetch_formatted_year(birthday)}#{individual_number}"
.to_i % 31
CHECK_DIGITS[digit]
end
def check_birth_year(birth_year)
return if birth_year.between?(1799, 2100)
raise ArgumentError, "Birth year: #{birth_year} is not between supported 1799 and 2100 range"
end
end
end
|
