use test_programs::p3::wasi::cli::{
    environment, stderr, stdin, stdout, terminal_stderr, terminal_stdin, terminal_stdout,
};
use test_programs::p3::wit_stream;
use wit_bindgen::StreamResult;

struct Component;

test_programs::p3::export!(Component);

impl test_programs::p3::exports::wasi::cli::run::Guest for Component {
    async fn run() -> Result<(), ()> {
        assert_eq!(environment::get_arguments(), ["p3_cli.component", "."]);
        assert_ne!(environment::get_environment(), []);
        assert_eq!(environment::get_initial_cwd(), None);

        assert!(terminal_stdin::get_terminal_stdin().is_none());
        assert!(terminal_stdout::get_terminal_stdout().is_none());
        assert!(terminal_stderr::get_terminal_stderr().is_none());

        let mut stdin = stdin::get_stdin();
        assert!(stdin.next().await.is_none());

        let (mut stdout_tx, stdout_rx) = wit_stream::new();
        stdout::set_stdout(stdout_rx);
        let (res, buf) = stdout_tx.write(b"hello stdout\n".into()).await;
        assert_eq!(res, StreamResult::Complete(13));
        assert_eq!(buf.into_vec(), []);

        let (mut stderr_tx, stderr_rx) = wit_stream::new();
        stderr::set_stderr(stderr_rx);
        let (res, buf) = stderr_tx.write(b"hello stderr\n".into()).await;
        assert_eq!(res, StreamResult::Complete(13));
        assert_eq!(buf.into_vec(), []);

        Ok(())
    }
}

fn main() {}