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use chrono::Utc;
use mysql;
use rand::{self, Rng};
use sha1;
use errors::*;
pub struct Purchaser<'a> {
name: &'a str,
email: &'a str,
secret: Option<String>,
}
impl<'a> Purchaser<'a> {
pub fn new(name: &'a str, email: &'a str) -> Self {
let mut purchaser = Purchaser {
name: name,
email: email,
secret: None,
};
purchaser.generate_secret();
purchaser
}
fn generate_secret(&mut self) {
let timestamp = Utc::now().timestamp();
let mut rng = rand::thread_rng();
let random: usize = rng.gen_range(1_000_000_000, ::std::usize::MAX);
let source = format!("{}{}{}{}", self.name, self.email, timestamp, random);
let digest = sha1::Sha1::from(source).hexdigest();
self.secret = Some(digest);
}
pub fn insert(&self, cx: &mut mysql::PooledConn) -> Result<()> {
let mut tx = cx.start_transaction(
false, // consistent_snapshot
None, // isolation_level
None, // readonly
)?;
match self.secret {
Some(ref s) => {
tx.prep_exec("
INSERT INTO purchasers
(name, email, secret)
VALUES
(?, ?, ?)",
(self.name, self.email, s),
)?;
},
None => {
tx.prep_exec("
INSERT INTO purchasers
(name, email)
VALUES
(?, ?)",
(self.name, self.email),
)?;
},
}
tx.commit()?;
Ok(())
}
}
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