voli 0.3.0

//! CLI-level tests for step 10 (spec §8, §9): the env-consent auto-apply path,
//! doctor's env-drift WARN, and `upgrade --all` skipping pinned packages.
//!
//! These drive the real `voli` binary (so the TTY / prompt / pin-filter logic
//! that lives in the CLI is exercised) against a scratch VOLI_ENV_SUBKEY and an
//! isolated VOLI_ROOT.

use std::fs;
use std::io::Write;
use std::path::Path;
use std::process::{Command, Stdio};
use std::sync::Once;

use sha2::{Digest, Sha256};
use voli_core::{Manifest, State, env, install_local};
use zip::write::SimpleFileOptions;

static STUB: Once = Once::new();

/// Point `VOLI_SHIM_STUB` at the built voli-shim.exe (in target/debug, the
/// parent of the test binary's deps/ dir) so in-process installs can copy it.
fn ensure_stub() {
    STUB.call_once(|| {
        let stub = std::env::current_exe()
            .ok()
            .and_then(|p| {
                p.parent()
                    .and_then(|d| d.parent())
                    .map(|d| d.join("voli-shim.exe"))
            })
            .filter(|p| p.exists())
            .unwrap_or_else(|| {
                let p = std::env::temp_dir().join("voli-test-shim-stub.exe");
                fs::write(&p, b"dummy shim stub").unwrap();
                p
            });
        // SAFETY: set once, before any install runs.
        unsafe { std::env::set_var("VOLI_SHIM_STUB", stub) };
    });
}

fn sha256_hex(bytes: &[u8]) -> String {
    let d = Sha256::digest(bytes);
    d.iter().map(|b| format!("{b:02x}")).collect()
}

/// Zip with wrapper `app-1.0.0/` + `app.exe` + `bin/`.
fn app_zip() -> Vec<u8> {
    let mut buf = Vec::new();
    {
        let mut w = zip::ZipWriter::new(std::io::Cursor::new(&mut buf));
        let opts = SimpleFileOptions::default().compression_method(zip::CompressionMethod::Stored);
        w.add_directory("app-1.0.0/", opts).unwrap();
        w.start_file("app-1.0.0/app.exe", opts).unwrap();
        w.write_all(b"fake app").unwrap();
        w.add_directory("app-1.0.0/bin/", opts).unwrap();
        w.finish().unwrap();
    }
    buf
}

fn write_env_manifest(dir: &Path, sha: &str) -> std::path::PathBuf {
    let toml = format!(
        r#"
name = "app"
version = "1.0.0"
kind = "app"
extract_dir = "app-1.0.0"
bin = ["app.exe"]

[source.x64]
url = "https://example.com/app.zip"
sha256 = "{sha}"

[env]
JAVA_HOME = "{{dir}}"
"#
    );
    let p = dir.join("app.toml");
    fs::write(&p, toml).unwrap();
    p
}

fn voli(root: &Path, subkey: &str, args: &[&str]) -> std::process::Output {
    Command::new(env!("CARGO_BIN_EXE_voli"))
        .args(args)
        .env("VOLI_ROOT", root)
        .env("VOLI_ENV_SUBKEY", subkey)
        .stdin(Stdio::null()) // non-TTY: install auto-applies env (spec §8/§9)
        .output()
        .unwrap()
}

#[test]
fn non_tty_install_auto_applies_env_and_uninstall_restores() {
    let td = tempfile::tempdir().unwrap();
    let root = td.path();
    let sk = "Software\\voli-test-cli\\autoapply";
    let _ = env::delete_subkey(sk);

    let zip = app_zip();
    let archive = root.join("app.zip");
    fs::write(&archive, &zip).unwrap();
    let manifest = write_env_manifest(root, &sha256_hex(&zip));

    // Non-TTY install: no --yes, but null stdin => auto-applies without prompting.
    let out = voli(
        root,
        sk,
        &[
            "install",
            manifest.to_str().unwrap(),
            "--archive",
            archive.to_str().unwrap(),
        ],
    );
    assert!(
        out.status.success(),
        "install failed: {}",
        String::from_utf8_lossy(&out.stderr)
    );

    let expect = root
        .join("apps")
        .join("app")
        .join("current")
        .to_string_lossy()
        .into_owned();
    assert_eq!(
        env::get(sk, "JAVA_HOME").unwrap().as_deref(),
        Some(expect.as_str())
    );

    // `voli env app` reports it.
    let env_out = voli(root, sk, &["env", "app"]);
    assert!(env_out.status.success());
    assert!(String::from_utf8_lossy(&env_out.stdout).contains("JAVA_HOME"));

    // Uninstall restores prior (JAVA_HOME was absent => deleted).
    let un = voli(root, sk, &["uninstall", "app"]);
    assert!(un.status.success());
    assert_eq!(
        env::get(sk, "JAVA_HOME").unwrap(),
        None,
        "zero-trace: key deleted"
    );

    let _ = env::delete_subkey(sk);
}

#[test]
fn no_env_flag_skips_application() {
    let td = tempfile::tempdir().unwrap();
    let root = td.path();
    let sk = "Software\\voli-test-cli\\noenv";
    let _ = env::delete_subkey(sk);

    let zip = app_zip();
    let archive = root.join("app.zip");
    fs::write(&archive, &zip).unwrap();
    let manifest = write_env_manifest(root, &sha256_hex(&zip));

    let out = voli(
        root,
        sk,
        &[
            "install",
            manifest.to_str().unwrap(),
            "--archive",
            archive.to_str().unwrap(),
            "--no-env",
        ],
    );
    assert!(out.status.success());
    assert_eq!(
        env::get(sk, "JAVA_HOME").unwrap(),
        None,
        "--no-env applies nothing"
    );

    let _ = env::delete_subkey(sk);
}

#[test]
fn doctor_warns_on_env_drift() {
    let td = tempfile::tempdir().unwrap();
    let root = td.path();
    let sk = "Software\\voli-test-cli\\drift";
    let _ = env::delete_subkey(sk);

    let zip = app_zip();
    let archive = root.join("app.zip");
    fs::write(&archive, &zip).unwrap();
    let manifest = write_env_manifest(root, &sha256_hex(&zip));
    voli(
        root,
        sk,
        &[
            "install",
            manifest.to_str().unwrap(),
            "--archive",
            archive.to_str().unwrap(),
        ],
    );

    // User edits what voli set → drift.
    env::set(sk, "JAVA_HOME", "C:\\hand\\edited").unwrap();

    // (This root was never `voli setup`, so PATH/bin checks fail — that's fine;
    // we assert only that drift surfaces as a WARN, never a FAIL, and is not
    // auto-fixed.)
    let out = voli(root, sk, &["doctor", "--json"]);
    let text = String::from_utf8_lossy(&out.stdout);
    let json: serde_json::Value = serde_json::from_str(&text).unwrap();
    let drift = json["checks"]
        .as_array()
        .unwrap()
        .iter()
        .find(|c| c["check"] == "env drift")
        .expect("doctor should report an env-drift check");
    assert_eq!(drift["status"], "WARN", "drift must WARN, not FAIL");

    // Never auto-fixed: the hand-edited value stands.
    assert_eq!(
        env::get(sk, "JAVA_HOME").unwrap().as_deref(),
        Some("C:\\hand\\edited")
    );

    let _ = env::delete_subkey(sk);
}

#[test]
fn upgrade_all_skips_pinned() {
    ensure_stub();
    let td = tempfile::tempdir().unwrap();
    let root = td.path();
    let sk = "Software\\voli-test-cli\\pin";

    // Install v1 locally (no network), then advertise a newer v2 in the index.
    let zip = app_zip();
    let archive = root.join("app.zip");
    fs::write(&archive, &zip).unwrap();
    let manifest = write_env_manifest(root, &sha256_hex(&zip));
    install_local(&manifest, &archive, root).unwrap();

    let m1 = Manifest::from_toml_str(
        r#"name="app"
version="1.0.0"
kind="app"
bin=["app.exe"]
[source.x64]
url="https://example.com/app-1.0.0.zip"
sha256="aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa""#,
    )
    .unwrap();
    let m2 = Manifest::from_toml_str(
        r#"name="app"
version="2.0.0"
kind="app"
bin=["app.exe"]
[source.x64]
url="https://example.com/app-2.0.0.zip"
sha256="bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb""#,
    )
    .unwrap();
    voli_core::index::build(&[m1, m2], &voli_core::index::index_db_path(root)).unwrap();

    // Pin it.
    {
        let mut state = State::open(&voli_core::Paths::at(root).state_db()).unwrap();
        assert!(state.set_pinned("app", true).unwrap());
    }

    // `upgrade --all` must skip the pinned package (never downloads v2).
    let out = voli(root, sk, &["upgrade", "--all"]);
    assert!(out.status.success());
    let text = String::from_utf8_lossy(&out.stdout);
    assert!(
        text.contains("pinned"),
        "expected a pinned-skip note:\n{text}"
    );

    // Still v1 — the pin held.
    let state = State::open(&voli_core::Paths::at(root).state_db()).unwrap();
    assert_eq!(
        state.installed_version("app").unwrap().as_deref(),
        Some("1.0.0")
    );
}