use std::os::unix::process::ExitStatusExt;

use super::*;

const V0_2_9: emver::Version = emver::Version::new(0, 2, 9, 0);

pub struct Version;
#[async_trait]
impl VersionT for Version {
    type Previous = v0_2_8::Version;
    fn new() -> Self {
        Version
    }
    fn semver(&self) -> &'static emver::Version {
        &V0_2_9
    }
    async fn up(&self) -> Result<(), Error> {
        crate::tor::write_lan_services(
            &crate::tor::services_map(&PersistencePath::from_ref(crate::SERVICES_YAML)).await?,
        )
        .await?;
        tokio::fs::os::unix::symlink(
            crate::tor::ETC_NGINX_SERVICES_CONF,
            "/etc/nginx/sites-enabled/start9-services.conf",
        )
        .await
        .or_else(|e| {
            if e.kind() == std::io::ErrorKind::AlreadyExists {
                Ok(())
            } else {
                Err(e)
            }
        })?;
        let svc_exit = std::process::Command::new("service")
            .args(&["nginx", "reload"])
            .status()?;
        crate::ensure_code!(
            svc_exit.success(),
            crate::error::GENERAL_ERROR,
            "Failed to Reload Nginx: {}",
            svc_exit
                .code()
                .or_else(|| { svc_exit.signal().map(|a| 128 + a) })
                .unwrap_or(0)
        );
        Ok(())
    }
    async fn down(&self) -> Result<(), Error> {
        tokio::fs::remove_file("/etc/nginx/sites-enabled/start9-services.conf").await?;
        tokio::fs::remove_file(crate::tor::ETC_NGINX_SERVICES_CONF).await?;
        let svc_exit = std::process::Command::new("service")
            .args(&["nginx", "reload"])
            .status()?;
        crate::ensure_code!(
            svc_exit.success(),
            crate::error::GENERAL_ERROR,
            "Failed to Reload Nginx: {}",
            svc_exit
                .code()
                .or_else(|| { svc_exit.signal().map(|a| 128 + a) })
                .unwrap_or(0)
        );
        Ok(())
    }
}