use crate::prelude::*;
use cryptography::hashing::HashedBytes;
use log::error;
use tokio::task::spawn_blocking;

/// Returns true if the provided master password is valid
#[inline]
async fn check_master_pass(
    msg: &Message,
    db: &Pool,
    master_pass: &str,
) -> crate::Result<Option<String>> {
    let user_id = msg.from().ok_or(NoUserInfo)?.id.0;
    let Some(model) = MasterPass::get(user_id, db).await? else {
        error!("User was put into the GetMasterPass state with no master password set");
        return Ok(Some(
            "No master password set. Use /cancel and set it by using /set_master_pass".to_owned(),
        ));
    };

    let is_valid = {
        let hash = HashedBytes::from(model);
        let master_pass = master_pass.to_owned();
        spawn_blocking(move || hash.verify(master_pass.as_bytes())).await?
    };

    if !is_valid {
        return Ok(Some("Wrong master password. Try again".to_owned()));
    }
    Ok(None)
}

crate::simple_state_handler!(
    get_master_pass,
    check_master_pass,
    "Couldn't get the text of the message. Send the master password again"
);