use std::io::{self, BufRead, Write};
use errors::Result;
use http_send::HttpSend;
use registration::Registered;
use Mastodon;
pub fn authenticate<H: HttpSend>(registration: Registered<H>) -> Result<Mastodon<H>> {
let url = registration.authorize_url()?;
let stdout = io::stdout();
let stdin = io::stdin();
let mut stdout = stdout.lock();
let mut stdin = stdin.lock();
writeln!(&mut stdout, "Click this link to authorize: {}", url)?;
write!(&mut stdout, "Paste the returned authorization code: ")?;
stdout.flush()?;
let mut input = String::new();
stdin.read_line(&mut input)?;
let code = input.trim();
Ok(registration.complete(code)?)
}