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mod utils;
use wasm_bindgen::prelude::*;
use rand::Rng;
// When the `wee_alloc` feature is enabled, use `wee_alloc` as the global
// allocator.
#[cfg(feature = "wee_alloc")]
#[global_allocator]
static ALLOC: wee_alloc::WeeAlloc = wee_alloc::WeeAlloc::INIT;
#[wasm_bindgen]
extern {
fn alert(s: &str);
}
#[wasm_bindgen]
pub fn generate(len: usize, lower: bool, upper: bool, number: bool, special: bool) -> String {
if len == 0 ||!lower && !upper && !number && !special {
return "".to_string();
}
let mut upper_charset: Vec<char> = String::from("ABCDEFGHIJKLMNOPQRSTUVWXYZ").chars().collect();
let mut lower_charset: Vec<char> = String::from("abcdefghijklmnopqrstuvwxyz").chars().collect();
let mut number_charset: Vec<char> = String::from("1234567890").chars().collect();
let mut special_charset: Vec<char> = String::from("!@#$%^&*()+{}[]").chars().collect();
let mut result: Vec<char> = Vec::new();
let mut rng = rand::thread_rng();
if lower {
result.append(&mut lower_charset);
}
if upper {
result.append(&mut upper_charset);
}
if number {
result.append(&mut number_charset);
}
if special {
result.append(&mut special_charset);
}
(0..len)
.map(|_| {
let idx = rng.gen_range(0..result.len());
result[idx] as char
})
.collect()
}
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