// Copyright 2020 the Deno authors. All rights reserved. MIT license.

use deno_core::error::AnyError;
use deno_core::FsModuleLoader;
use deno_core::ModuleSpecifier;
use deno_runtime::permissions::Permissions;
use deno_runtime::worker::MainWorker;
use deno_runtime::worker::WorkerOptions;
use std::path::Path;
use std::rc::Rc;
use std::sync::Arc;

fn get_error_class_name(e: &AnyError) -> &'static str {
  deno_runtime::errors::get_error_class_name(e).unwrap_or("Error")
}

#[tokio::main]
async fn main() -> Result<(), AnyError> {
  let module_loader = Rc::new(FsModuleLoader);
  let create_web_worker_cb = Arc::new(|_| {
    todo!("Web workers are not supported in the example");
  });

  let options = WorkerOptions {
    apply_source_maps: false,
    args: vec![],
    debug_flag: false,
    unstable: false,
    ca_data: None,
    user_agent: "hello_runtime".to_string(),
    seed: None,
    js_error_create_fn: None,
    create_web_worker_cb,
    attach_inspector: false,
    maybe_inspector_server: None,
    should_break_on_first_statement: false,
    module_loader,
    runtime_version: "x".to_string(),
    ts_version: "x".to_string(),
    no_color: false,
    get_error_class_fn: Some(&get_error_class_name),
  };

  let js_path =
    Path::new(env!("CARGO_MANIFEST_DIR")).join("examples/hello_runtime.js");
  let main_module = ModuleSpecifier::resolve_path(&js_path.to_string_lossy())?;
  let permissions = Permissions::allow_all();

  let mut worker =
    MainWorker::from_options(main_module.clone(), permissions, &options);
  worker.bootstrap(&options);
  worker.execute_module(&main_module).await?;
  worker.run_event_loop().await?;
  Ok(())
}