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use std::convert::Infallible;
use std::net::SocketAddr;
use clap::Parser;
use hyper::Body;
use hyper::Request;
use hyper::Response;
use hyper::Server;
use tedge_api::PluginBuilder;
use tedge_api::PluginExt;
use tracing::debug;
use tracing::info;
use tedge_cli::Registry;
#[derive(Debug, miette::Diagnostic, thiserror::Error)]
enum Error {
#[error("Failed to parse configuration")]
ConfigParseFailed(#[from] toml::de::Error),
#[error("Hyper error")]
Hyper(#[from] hyper::Error),
}
pub struct EchoServerPluginBuilder;
#[async_trait::async_trait]
impl<PD> PluginBuilder<PD> for EchoServerPluginBuilder
where
PD: tedge_api::PluginDirectory,
{
fn kind_name() -> &'static str
where
Self: Sized,
{
"echo"
}
fn kind_message_types() -> tedge_api::plugin::HandleTypes
where
Self: Sized,
{
EchoServerPlugin::get_handled_types()
}
async fn verify_configuration(
&self,
_config: &tedge_api::PluginConfiguration,
) -> Result<(), tedge_api::PluginError> {
Ok(())
}
async fn instantiate(
&self,
_config: tedge_api::PluginConfiguration,
cancellation_token: tedge_api::CancellationToken,
_core_comms: &PD,
) -> Result<tedge_api::plugin::BuiltPlugin, tedge_api::PluginError> {
Ok(EchoServerPlugin { cancellation_token }.finish())
}
}
pub struct EchoServerPlugin {
cancellation_token: tedge_api::CancellationToken,
}
#[async_trait::async_trait]
impl tedge_api::Plugin for EchoServerPlugin {
async fn main(&self) -> Result<(), tedge_api::PluginError> {
let svc = hyper::service::make_service_fn(move |_conn| {
let service = hyper::service::service_fn(move |req| request_handler(req));
async move { Ok::<_, Infallible>(service) }
});
let cancellation_token = self.cancellation_token.clone();
let addr: SocketAddr = "0.0.0.0:8080".parse().unwrap();
Server::bind(&addr)
.serve(svc)
.with_graceful_shutdown(async move {
cancellation_token.cancelled().await;
})
.await
.map(|_| ())
.map_err(Error::from)
.map_err(tedge_api::PluginError::from)
}
}
async fn request_handler(_: Request<Body>) -> Result<Response<Body>, Infallible> {
Ok(Response::new("Pong".into()))
}
impl tedge_api::plugin::PluginDeclaration for EchoServerPlugin {
type HandledMessages = ();
}
#[tokio::main]
#[tracing::instrument]
async fn main() -> miette::Result<()> {
let args = tedge_cli::cli::Cli::parse();
let _guard = tedge_cli::logging::setup_logging(
args.logging,
args.chrome_logging.as_ref(),
args.tracy_logging,
)?;
info!("Tedge booting...");
debug!(?args, "Tedge CLI");
let registry = tedge_cli::Registry::default();
info!("Building application");
let registry = Registry {
app_builder: registry
.app_builder
.with_plugin_builder(EchoServerPluginBuilder),
plugin_kinds: registry.plugin_kinds,
doc_printers: registry.doc_printers,
};
tedge_cli::run_app(args, registry).await
}
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