use rusqlite::{Connection};
use std;
use auth::HashedPassword;

type Result<T> = std::result::Result<T, String>;

fn is_initialized(conn: &mut Connection) -> Result<bool> {
    Ok(false)
}

pub fn init(conn: &mut Connection) -> Result<()> {
    if !is_initialized(conn)? {
        info!("Initializing db...");
        conn.execute_batch("
            BEGIN;
            CREATE TABLE IF NOT EXISTS users
              (username TEXT PRIMARY KEY, salt TEXT, passwd TEXT);
            COMMIT;
        ").unwrap();
    }
    Ok(())
}

pub fn insert_user(conn: &mut Connection,
                   username: &str,
                   password: &HashedPassword) -> Result<()> {
    conn.execute("INSERT INTO users (username, salt, passwd)
                  VALUES (?1, ?2, ?3)",
                 &[&username, &password.salt, &password.enc]).unwrap();
    Ok(())
}