edm-core 0.2.0

Core types and traits for edm.
Documentation 
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

use rand::{seq::SliceRandom, thread_rng, Rng};

/// Country codes for a mocked phone number.
const COUNTRY_CODES: [&str; 3] = ["+1", "+49", "+86"];

/// Generates a random phone number.
pub(crate) fn gen_phone_number() -> String {
    let mut rng = thread_rng();
    let country_code = COUNTRY_CODES.choose(&mut rng).unwrap_or(&"+86");
    let national_number = match *country_code {
        "+1" => (0..10)
            .map(|i| match i {
                0 => rng.gen_range('2'..='9'),
                1 => rng.gen_range('4'..='9'),
                _ => rng.gen_range('0'..='9'),
            })
            .collect::<String>(),
        "+49" => (0..11)
            .map(|i| match i {
                0 => '1',
                1 => '7',
                2 => rng.gen_range('1'..='9'),
                _ => rng.gen_range('0'..='9'),
            })
            .collect::<String>(),
        _ => (0..11)
            .map(|i| match i {
                0 => '1',
                1 => rng.gen_range('3'..='9'),
                _ => rng.gen_range('0'..='9'),
            })
            .collect::<String>(),
    };
    format!("{country_code}{national_number}")
}