use std::io::Write;
use std::net::TcpStream;
use std::sync::{Arc, RwLock};

use anyhow::Result;

use bank::bank::Bank;

use crate::commands::Command;
use crate::protocol;

pub struct CreateAccount;

impl Command for CreateAccount {
    fn execute(
        &self,
        bank: Arc<RwLock<Bank>>,
        data: &[u8],
        mut stream: &TcpStream,
    ) -> Result<usize> {
        debug!("owner nr bytes {:?}", data);

        let owner = String::from_utf8_lossy(data);
        info!("creating new account with owner {}...", owner);

        let mut bank = bank.write().unwrap();
        let nr = bank.create_account(owner.into());
        info!("created account {}", nr);

        let written = stream.write(&protocol::account_nr(&nr))?;
        Ok(written)
    }
}