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mod regions;
#[derive(Debug)]
pub struct JMBG<'a>(pub &'a str);
pub enum Gender {
Male,
Female,
}
impl JMBG<'_> {
pub fn day(&self) -> std::result::Result<u8, std::num::ParseIntError> {
self.0[..2].parse::<u8>()
}
pub fn month(&self) -> std::result::Result<u8, std::num::ParseIntError> {
self.0[2..4].parse::<u8>()
}
pub fn year(&self) -> std::result::Result<u16, std::num::ParseIntError> {
let mut year_num = match self.0[4..7].parse::<u16>() {
Ok(_year) => _year,
Err(err) => return Err(err),
};
if year_num > 870 {
year_num += 1000;
} else {
year_num += 2000;
}
Ok(year_num)
}
pub fn region_num(&self) -> std::result::Result<u8, std::num::ParseIntError> {
self.0[7..9].parse::<u8>()
}
pub fn region(&self) -> std::result::Result<(&str, &str), std::num::ParseIntError> {
let code = match self.region_num() {
Ok(code) => code,
Err(err) => return Err(err),
};
Ok((regions::region(code), regions::country(code)))
}
pub fn birth_num(&self) -> std::result::Result<u16, std::num::ParseIntError> {
self.0[9..12].parse::<u16>()
}
pub fn gender(&self) -> std::result::Result<Gender, std::num::ParseIntError> {
let code = match self.birth_num() {
Ok(code) => code,
Err(err) => return Err(err),
};
if code < 500 {
return Ok(Gender::Male);
} else {
return Ok(Gender::Female);
}
}
pub fn checksum(&self) -> std::option::Option<u8> {
match self.0.chars().nth(12_usize) {
Some(value) => match value.to_digit(10) {
Some(value) => Some(value as u8),
None => return None
},
None => return None
}
}
pub fn is_valid(&self) -> std::result::Result<bool, std::num::ParseIntError> {
let jmbg_int = match self.0.parse::<u64>() {
Ok(value) => value,
Err(err) => return Err(err),
};
let mut digits = [0; 13];
for i in (0..13).rev() {
digits[12 - i] = (jmbg_int / 10_u64.pow(i as u32) % 10) as u8;
}
let m = 11
- ((7 * (digits[0] + digits[6])
+ 6 * (digits[1] + digits[7])
+ 5 * (digits[2] + digits[8])
+ 4 * (digits[3] + digits[9])
+ 3 * (digits[4] + digits[10])
+ 2 * (digits[5] + digits[11]))
% 11);
let k = match m {
10 => 0,
11 => 0,
_ => m
};
Ok(digits[12] == k)
}
}