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 CloseAccount;

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

        let nr = String::from_utf8_lossy(data).to_string();
        info!("closing account {}...", nr);

        let bank = bank.read().unwrap();

        let written = match bank.accounts.get(&nr) {
            Some(acc) => {
                let mut acc = acc.write().unwrap();
                stream.write(&protocol::account_passivate(acc.passivate()))?
            }
            None => stream.write(&protocol::account_passivate(false))?,
        };

        Ok(written)
    }
}