url_shortener

url_shortener.rs

#[derive(Debug, Clone)]
pub struct Shortener {
    id: u64,
    generator: Harsh, 
}

impl Default for Shortener {
    fn default() -> Self { 
        Shortener{
            id: 0,
            generator: Harsh::default(),
        }
    }
}

impl Shortener {
    fn next_id(&mut self) -> String {
        let hashed = self.generator.encode(&[self.id]);
        self.id += 1;
        hashed
    }
}

#[derive(Debug)]
pub struct TinyUrl {
    pub shortener: Shortener,
}

impl TinyUrl {
    pub fn new() -> TinyUrl {
        TinyUrl {
            shortener: Shortener::default(),
        }
    }
    pub fn set(&mut self, url: &str) -> String {
        self.shortener.next_id()  
    }
}