// An example is based on README.md from https://github.com/philippkeller/rexpect

#[cfg(unix)]
use anticipate::{repl::spawn_bash, ControlCode, Expect, Regex};

#[cfg(unix)]
fn main() {
    let mut p = spawn_bash().unwrap();

    // case 1: execute
    let hostname = p.execute("hostname").unwrap();
    println!("Current hostname: {:?}", String::from_utf8_lossy(&hostname));

    // case 2: wait until done, only extract a few infos
    p.send_line("wc /etc/passwd").unwrap();
    // `exp_regex` returns both string-before-match and match itself, discard first
    let lines = p.expect(Regex("[0-9]+")).unwrap();
    let words = p.expect(Regex("[0-9]+")).unwrap();
    let bytes = p.expect(Regex("[0-9]+")).unwrap();
    p.expect_prompt().unwrap(); // go sure `wc` is really done
    println!(
        "/etc/passwd has {} lines, {} words, {} chars",
        String::from_utf8_lossy(&lines[0]),
        String::from_utf8_lossy(&words[0]),
        String::from_utf8_lossy(&bytes[0]),
    );

    // case 3: read while program is still executing
    p.send_line("ping 8.8.8.8").unwrap(); // returns when it sees "bytes of data" in output
    for _ in 0..5 {
        // times out if one ping takes longer than 2s
        let duration = p.expect(Regex("[0-9. ]+ ms")).unwrap();
        println!("Roundtrip time: {}", String::from_utf8_lossy(&duration[0]));
    }

    p.send(ControlCode::EOT).unwrap();
}

#[cfg(windows)]
fn main() {
    panic!("An example doesn't supported on windows")
}