use std::env;
use std::path::PathBuf;

fn main() -> Result<(), Box<dyn std::error::Error>> {
    let catalog_file = "./proto/catalog.proto";
    let datum_file = "./proto/datum.proto";
    let domain_file = "./proto/domain.proto";
    let model_file = "./proto/model.proto";
    let request_file = "./proto/request.proto";
    let snapshot_file = "./proto/snapshot.proto";
    let out_dir = PathBuf::from(env::var("OUT_DIR").unwrap());

    tonic_build::configure()
        .protoc_arg("--experimental_allow_proto3_optional") // for older systems
        .build_client(true)
        .build_server(true)
        .file_descriptor_set_path(out_dir.join("proto_descriptor.bin"))
        .out_dir("./src")
        .compile(&[catalog_file, datum_file, domain_file, model_file, request_file, snapshot_file], &["proto"])?;

    Ok(())
}