use crate::DAGGER_ENGINE_VERSION;
use crate::{
    cli_session::CliSession, config::Config, connect_params::ConnectParams, downloader::Downloader,
};

pub struct Engine {}

impl Engine {
    pub fn new() -> Self {
        Self {}
    }

    async fn from_cli(&self, cfg: &Config) -> eyre::Result<(ConnectParams, tokio::process::Child)> {
        let cli = Downloader::new(DAGGER_ENGINE_VERSION.into())?
            .get_cli()
            .await?;

        let cli_session = CliSession::new();

        Ok(cli_session.connect(cfg, &cli).await?)
    }

    pub async fn start(
        &self,
        cfg: &Config,
    ) -> eyre::Result<(ConnectParams, tokio::process::Child)> {
        tracing::info!("starting dagger-engine");

        // TODO: Add from existing session as well
        self.from_cli(cfg).await
    }
}