use cfgsync_adapter::{
    DynCfgsyncError, MaterializationResult, MaterializedArtifacts, RegistrationSnapshot,
    RegistrationSnapshotMaterializer,
};
use cfgsync_artifacts::{ArtifactFile, ArtifactSet};
use cfgsync_runtime::serve_cfgsync;

struct ExampleMaterializer;

impl RegistrationSnapshotMaterializer for ExampleMaterializer {
    fn materialize_snapshot(
        &self,
        registrations: &RegistrationSnapshot,
    ) -> Result<MaterializationResult, DynCfgsyncError> {
        if registrations.is_empty() {
            return Ok(MaterializationResult::NotReady);
        }

        let nodes = registrations.iter().map(|registration| {
            (
                registration.identifier.clone(),
                ArtifactSet::new(vec![ArtifactFile::new(
                    "/config.yaml",
                    format!("id: {}\n", registration.identifier),
                )]),
            )
        });

        Ok(MaterializationResult::ready(
            MaterializedArtifacts::from_nodes(nodes),
        ))
    }
}

#[tokio::main]
async fn main() -> anyhow::Result<()> {
    serve_cfgsync(4400, ExampleMaterializer).await?;
    Ok(())
}