//! Shell completions and man pages come from the command definitions.

use std::process::Command;

fn oxy(args: &[&str]) -> (bool, String) {
    let out = Command::new(env!("CARGO_BIN_EXE_oxy"))
        .args(args)
        .env("NO_COLOR", "1")
        .output()
        .unwrap();
    (
        out.status.success(),
        String::from_utf8_lossy(&out.stdout).into_owned(),
    )
}

#[test]
fn completions_for_each_shell() {
    for (shell, marker) in [
        ("bash", "_oxy()"),
        ("zsh", "#compdef oxy"),
        ("fish", "complete -c oxy"),
        ("powershell", "Register-ArgumentCompleter"),
    ] {
        let (ok, text) = oxy(&["completions", shell]);
        assert!(ok, "{shell}");
        assert!(
            text.contains(marker),
            "{shell}: {}",
            &text[..text.len().min(200)]
        );
        assert!(
            text.contains("commit") && text.contains("doctor"),
            "{shell} knows the commands"
        );
    }
    assert!(
        !oxy(&["completions", "tcsh"]).0,
        "an unknown shell is refused"
    );
}

#[test]
fn man_pages_for_every_command() {
    let dir = tempfile::tempdir().unwrap();
    let (ok, _) = oxy(&["man", "--dir", &dir.path().to_string_lossy()]);
    assert!(ok);
    for page in [
        "oxy.1",
        "oxy-commit.1",
        "oxy-remote-add.1",
        "oxy-identity-delegate-add.1",
        "oxy-doctor.1",
    ] {
        let text = std::fs::read_to_string(dir.path().join(page))
            .unwrap_or_else(|_| panic!("{page} missing"));
        assert!(
            text.starts_with(".ie") || text.contains(".TH"),
            "{page} is roff"
        );
    }
    let commit = std::fs::read_to_string(dir.path().join("oxy-commit.1")).unwrap();
    assert!(
        commit.contains("subject line"),
        "argument help reaches the page"
    );
    let (ok, top) = oxy(&["man"]);
    assert!(ok && top.contains(".TH oxy"), "oxy man prints the top page");
}