//! Integration guard for the `aura chart` viewer's keyboard-control math: the pure
//! `keyXRange` (arrow-pan, +/- zoom-toward-cursor, 0/Home reset) lives in
//! `chart-viewer.js` and cannot be checked from Rust; this shells out to `node`, running
//! `tests/chart_viewer_keys.mjs`, which drives the pure export. `node` is REQUIRED: if
//! absent this test FAILS.

use std::path::PathBuf;
use std::process::Command;

#[test]
fn chart_viewer_keyboard_pan_zoom_toward_cursor() {
    let script = PathBuf::from(env!("CARGO_MANIFEST_DIR"))
        .join("tests")
        .join("chart_viewer_keys.mjs");
    assert!(script.exists(), "guard script missing at {}", script.display());

    let out = match Command::new("node").arg(&script).output() {
        Ok(out) => out,
        Err(e) => panic!(
            "node is required for the chart-viewer keyboard guard but could not be run \
             ({e}); install Node.js or ensure `node` is on PATH"
        ),
    };

    let stdout = String::from_utf8_lossy(&out.stdout);
    let stderr = String::from_utf8_lossy(&out.stderr);
    assert!(
        out.status.success(),
        "chart-viewer keyboard guard failed (exit {:?}).\n--- node stdout ---\n{stdout}\n--- node stderr ---\n{stderr}",
        out.status.code()
    );
}
