xbp 10.26.3

XBP is a zero-config build pack that can also interact with proxies, kafka, sockets, synthetic monitors.
Documentation
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//! Package installation module for xbp
//!
//! This module provides functionality to install supported system packages and
//! project-local tooling. Most targets map to curated shell scripts, while
//! some use native cross-platform logic.

use crate::utils::{command_exists, find_xbp_config_upwards};
use colored::Colorize;
use serde_json::Value;
use std::collections::BTreeSet;
use std::env;
use std::ffi::OsStr;
use std::path::{Path, PathBuf};
use std::process::Output;
use tokio::process::Command;
use tracing::{debug, info};
use walkdir::{DirEntry, WalkDir};

const ULTRACITE_MIN_NODE_MAJOR: u64 = 20;
pub const INSTALL_COMMAND_AFTER_HELP: &str = "\
List installable targets:
  xbp install
  xbp install --list
  xbp install -l
  xbp install ls

Available targets:
  azure-cli      Azure CLI (cross-platform: winget/Linux script)
  grafana        Monitoring and observability platform
  scylladb       High-performance NoSQL database
  nginx          Full NGINX installation with modules
  opencv-rust    OpenCV bindings for Rust
  docker         Container platform
  elixir-erlang  Elixir and Erlang runtime
  triggerdotdev  Background job framework
  iotop          I/O monitoring tool
  ultracite      Project-local JS/TS linting setup via `npx ultracite init`
";
const PACKAGE_JSON_SKIP_DIRS: &[&str] = &[
    "node_modules",
    ".git",
    ".next",
    "dist",
    "build",
    "coverage",
    "target",
];

#[derive(Debug, Clone, Copy, PartialEq, Eq)]
enum InstallTarget {
    AzureCli,
    Grafana,
    Scylladb,
    Nginx,
    OpenCvRust,
    Docker,
    ElixirErlang,
    TriggerDotDev,
    Iotop,
    Ultracite,
}

impl InstallTarget {
    fn all() -> &'static [InstallTarget] {
        &[
            InstallTarget::AzureCli,
            InstallTarget::Grafana,
            InstallTarget::Scylladb,
            InstallTarget::Nginx,
            InstallTarget::OpenCvRust,
            InstallTarget::Docker,
            InstallTarget::ElixirErlang,
            InstallTarget::TriggerDotDev,
            InstallTarget::Iotop,
            InstallTarget::Ultracite,
        ]
    }

    fn parse(input: &str) -> Option<Self> {
        match normalize_install_target(input).as_str() {
            "azure-cli" => Some(Self::AzureCli),
            "grafana" => Some(Self::Grafana),
            "scylladb" => Some(Self::Scylladb),
            "nginx" | "nginx-full" => Some(Self::Nginx),
            "opencv-rust" => Some(Self::OpenCvRust),
            "elixir-erlang" => Some(Self::ElixirErlang),
            "docker" => Some(Self::Docker),
            "triggerdotdev" | "trigger-dot-dev" => Some(Self::TriggerDotDev),
            "iotop" => Some(Self::Iotop),
            "ultracite" => Some(Self::Ultracite),
            _ => None,
        }
    }

    fn display_name(self) -> &'static str {
        match self {
            Self::AzureCli => "azure-cli",
            Self::Grafana => "grafana",
            Self::Scylladb => "scylladb",
            Self::Nginx => "nginx",
            Self::OpenCvRust => "opencv-rust",
            Self::Docker => "docker",
            Self::ElixirErlang => "elixir-erlang",
            Self::TriggerDotDev => "triggerdotdev",
            Self::Iotop => "iotop",
            Self::Ultracite => "ultracite",
        }
    }

    fn description(self) -> &'static str {
        match self {
            Self::AzureCli => "Azure CLI (cross-platform: winget/Linux script)",
            Self::Grafana => "Monitoring and observability platform",
            Self::Scylladb => "High-performance NoSQL database",
            Self::Nginx => "Full NGINX installation with modules",
            Self::OpenCvRust => "OpenCV bindings for Rust",
            Self::Docker => "Container platform",
            Self::ElixirErlang => "Elixir and Erlang runtime",
            Self::TriggerDotDev => "Background job framework",
            Self::Iotop => "I/O monitoring tool",
            Self::Ultracite => "Project-local JS/TS linting setup via `npx ultracite init`",
        }
    }

    fn script_name(self) -> Option<&'static str> {
        match self {
            Self::AzureCli | Self::Ultracite => None,
            Self::Grafana => Some("grafana"),
            Self::Scylladb => Some("scylladb"),
            Self::Nginx => Some("nginx_full"),
            Self::OpenCvRust => Some("opencv-rust"),
            Self::Docker => Some("docker"),
            Self::ElixirErlang => Some("elixir_erlang"),
            Self::TriggerDotDev => Some("triggerdotdev"),
            Self::Iotop => Some("iotop"),
        }
    }

    async fn install(self, debug: bool) -> Result<(), String> {
        match self {
            Self::AzureCli => install_azure_cli(debug).await,
            Self::Ultracite => install_ultracite(debug).await,
            _ => {
                execute_install_script(
                    self.script_name().expect("script-backed target"),
                    self.display_name(),
                    debug,
                )
                .await
            }
        }
    }
}

#[derive(Debug, Clone, Copy, PartialEq, Eq)]
enum NodePackageManager {
    Pnpm,
    Bun,
    Yarn,
    Npm,
}

impl NodePackageManager {
    fn as_flag(self) -> &'static str {
        match self {
            Self::Pnpm => "pnpm",
            Self::Bun => "bun",
            Self::Yarn => "yarn",
            Self::Npm => "npm",
        }
    }
}

/// Installs a package by name using the corresponding installation script or
/// native implementation.
pub async fn install_package(package_name: &str, debug: bool) -> Result<(), String> {
    if package_name.trim().is_empty() || is_install_listing_request(package_name) {
        print_install_targets_help();
        return Ok(());
    }

    let Some(target) = InstallTarget::parse(package_name) else {
        eprintln!("{} '{}'", "Unknown install target:".red(), package_name);
        println!();
        print_install_targets_help();
        return Err(format!("Package '{}' is not supported", package_name));
    };

    target.install(debug).await
}

pub fn is_install_listing_request(package_name: &str) -> bool {
    matches!(
        normalize_install_target(package_name).as_str(),
        "--help" | "help" | "list" | "ls"
    )
}

pub fn print_install_empty_state() {
    println!("{}", "No install target selected.".bright_yellow().bold());
    println!(
        "{}",
        "Choose one of the supported targets below, or run `xbp install <target>` directly."
            .dimmed()
    );
    println!();
    print_install_targets_help();
}

pub fn print_install_targets_help() {
    list_available_packages();
    println!();
    println!("{}", "Examples:".bright_blue().bold());
    println!("  {}", "xbp install azure-cli".dimmed());
    println!("  {}", "xbp install docker".dimmed());
    println!("  {}", "xbp install nginx".dimmed());
    println!("  {}", "xbp install ultracite".dimmed());
    println!();
    println!(
        "{} {}",
        "Tip:".bright_yellow().bold(),
        "Use `xbp install --list`, `xbp install ls`, or `xbp <command> -h` for more detail."
    );
}

fn list_available_packages() {
    println!("{}", "Available packages:".bright_blue().bold());
    println!();

    for target in InstallTarget::all() {
        println!(
            "  {} - {}",
            target.display_name().cyan(),
            target.description()
        );
    }

    println!();
    println!(
        "{} {}",
        "Usage:".bright_blue(),
        "xbp install <package>".yellow()
    );
    println!(
        "{} {}",
        "Discover:".bright_blue(),
        "Run `xbp install`, `xbp install --list`, or `xbp install ls` to inspect targets.".yellow()
    );
}

fn normalize_install_target(input: &str) -> String {
    input.trim().to_ascii_lowercase().replace('_', "-")
}

/// Install Azure CLI natively: winget on Windows, curl|bash on Linux/macOS.
async fn install_azure_cli(_debug: bool) -> Result<(), String> {
    if command_exists("az") {
        info!("{}", "Azure CLI is already installed.".green());
        return Ok(());
    }

    #[cfg(target_os = "windows")]
    {
        if !command_exists("winget") {
            return Err(
                "winget is required. Install it from the Microsoft Store or use Windows 10/11."
                    .to_string(),
            );
        }
        info!("Installing Azure CLI via winget...");
        let output = Command::new("winget")
            .args([
                "install",
                "--exact",
                "--id",
                "Microsoft.AzureCLI",
                "--accept-package-agreements",
                "--accept-source-agreements",
            ])
            .output()
            .await
            .map_err(|e| format!("winget failed: {}", e))?;

        if !output.status.success() {
            let stderr = String::from_utf8_lossy(&output.stderr);
            let stdout = String::from_utf8_lossy(&output.stdout);
            return Err(format!("Azure CLI install failed: {}{}", stdout, stderr));
        }
        info!(
            "{}",
            "Azure CLI installed. Restart your terminal to use 'az'.".green()
        );
        Ok(())
    }

    #[cfg(target_os = "macos")]
    {
        if !command_exists("brew") {
            return Err("Homebrew is required. Install from https://brew.sh/".to_string());
        }
        info!("Installing Azure CLI via Homebrew...");
        let output = Command::new("brew")
            .args(["install", "azure-cli"])
            .output()
            .await
            .map_err(|e| format!("brew install failed: {}", e))?;

        if !output.status.success() {
            let stderr = String::from_utf8_lossy(&output.stderr);
            return Err(format!("Azure CLI install failed: {}", stderr));
        }
        info!("{}", "Azure CLI installed successfully.".green());
        Ok(())
    }

    #[cfg(target_os = "linux")]
    {
        info!("Installing Azure CLI via official script...");
        let script = "curl -sL https://aka.ms/InstallAzureCLIDeb | sudo bash";
        let output = Command::new("sh")
            .args(["-c", script])
            .output()
            .await
            .map_err(|e| format!("Azure CLI install failed: {}", e))?;

        if !output.status.success() {
            let stderr = String::from_utf8_lossy(&output.stderr);
            return Err(format!("Azure CLI install failed: {}", stderr));
        }
        info!("{}", "Azure CLI installed successfully.".green());
        Ok(())
    }

    #[cfg(not(any(target_os = "windows", target_os = "linux", target_os = "macos")))]
    {
        Err("Azure CLI install is supported on Windows, Linux, and macOS only.".to_string())
    }
}

async fn install_ultracite(debug: bool) -> Result<(), String> {
    let current_dir =
        env::current_dir().map_err(|e| format!("Failed to resolve current directory: {}", e))?;
    let project_dir = resolve_ultracite_project_dir(&current_dir)?;

    ensure_ultracite_prerequisites(debug).await?;

    let package_manager = detect_node_package_manager(&project_dir);
    let frameworks = infer_ultracite_frameworks(&project_dir);
    let args = build_ultracite_init_args(package_manager, &frameworks);

    info!(
        "Initializing Ultracite in project root: {}",
        project_dir.display()
    );
    info!(
        "Using package manager preset: {}",
        package_manager.as_flag()
    );
    if !frameworks.is_empty() {
        info!("Detected frameworks: {}", frameworks.join(", "));
    }

    if debug {
        debug!("Running Ultracite init: npx {}", args.join(" "));
    }

    let output = Command::new("npx")
        .args(&args)
        .current_dir(&project_dir)
        .output()
        .await
        .map_err(|e| format!("Failed to execute Ultracite installer: {}", e))?;

    if debug {
        debug!("Ultracite init output: {:?}", output);
    }

    if !output.status.success() {
        return Err(format_command_failure("npx", &args, &output));
    }

    let stdout = String::from_utf8_lossy(&output.stdout);
    if !stdout.trim().is_empty() {
        info!("{}", stdout.trim());
    }

    info!("{}", "Ultracite initialized successfully.".green());
    info!(
        "{}",
        "Tip: run `npx ultracite doctor` to validate the generated setup.".dimmed()
    );

    Ok(())
}

fn resolve_ultracite_project_dir(current_dir: &Path) -> Result<PathBuf, String> {
    if let Some(found) = find_xbp_config_upwards(current_dir) {
        let project_root = found.project_root;
        if project_root.join("package.json").exists() {
            return Ok(project_root);
        }

        if let Some(package_dir) =
            find_nearest_package_dir_ancestor(current_dir, Some(project_root.as_path()))
        {
            return Ok(package_dir);
        }

        let nested_package_dirs = find_nested_package_dirs(&project_root);
        if nested_package_dirs.len() == 1 {
            return Ok(nested_package_dirs[0].clone());
        }

        if nested_package_dirs.len() > 1 {
            let candidates = nested_package_dirs
                .iter()
                .take(4)
                .map(|path| path.display().to_string())
                .collect::<Vec<_>>()
                .join(", ");
            return Err(format!(
                "Ultracite requires a package.json-backed Node project. The XBP root `{}` has multiple nested package roots ({}). Run `xbp install ultracite` from the package you want to configure.",
                project_root.display(),
                candidates
            ));
        }

        return Err(format!(
            "Ultracite requires a package.json-backed Node project. No package.json was found in the current XBP project root `{}`.",
            project_root.display()
        ));
    }

    if let Some(package_dir) = find_nearest_package_dir_ancestor(current_dir, None) {
        return Ok(package_dir);
    }

    Err(
        "Ultracite requires a JavaScript or TypeScript project with a package.json file."
            .to_string(),
    )
}

fn find_nearest_package_dir_ancestor(start: &Path, stop_at: Option<&Path>) -> Option<PathBuf> {
    for dir in start.ancestors() {
        if dir.join("package.json").exists() {
            return Some(dir.to_path_buf());
        }

        if stop_at == Some(dir) {
            break;
        }
    }

    None
}

fn find_nested_package_dirs(root: &Path) -> Vec<PathBuf> {
    let mut dirs = BTreeSet::new();

    for path in collect_package_json_files(root) {
        if let Some(parent) = path.parent() {
            dirs.insert(parent.to_path_buf());
        }
    }

    dirs.into_iter().collect()
}

fn collect_package_json_files(root: &Path) -> Vec<PathBuf> {
    let mut files = Vec::new();

    for entry in WalkDir::new(root)
        .into_iter()
        .filter_entry(should_walk_package_tree)
    {
        let Ok(entry) = entry else {
            continue;
        };

        if entry.file_type().is_file() && entry.file_name() == OsStr::new("package.json") {
            files.push(entry.into_path());
        }
    }

    files.sort();
    files
}

fn should_walk_package_tree(entry: &DirEntry) -> bool {
    if !entry.file_type().is_dir() {
        return true;
    }

    let name = entry.file_name().to_string_lossy();
    !PACKAGE_JSON_SKIP_DIRS.contains(&name.as_ref())
}

async fn ensure_ultracite_prerequisites(debug: bool) -> Result<(), String> {
    if !command_exists("node") {
        return Err(format!(
            "Ultracite requires Node.js {}+ but `node` was not found on PATH.",
            ULTRACITE_MIN_NODE_MAJOR
        ));
    }

    if !command_exists("npx") {
        return Err(
            "Ultracite requires `npx`, but it was not found on PATH. Install Node.js with npm first."
                .to_string(),
        );
    }

    let output = Command::new("node")
        .arg("--version")
        .output()
        .await
        .map_err(|e| format!("Failed to check Node.js version: {}", e))?;

    if debug {
        debug!("Node.js version probe output: {:?}", output);
    }

    if !output.status.success() {
        return Err(format_command_failure(
            "node",
            &["--version".to_string()],
            &output,
        ));
    }

    let version = primary_output_line(&output);
    let major = parse_node_major_version(&version).ok_or_else(|| {
        format!(
            "Failed to parse Node.js version from `node --version` output: {}",
            version
        )
    })?;

    if major < ULTRACITE_MIN_NODE_MAJOR {
        return Err(format!(
            "Ultracite requires Node.js {}+ but found {}.",
            ULTRACITE_MIN_NODE_MAJOR, version
        ));
    }

    Ok(())
}

fn detect_node_package_manager(project_dir: &Path) -> NodePackageManager {
    let lockfile_order = [
        ("pnpm-lock.yaml", NodePackageManager::Pnpm),
        ("bun.lockb", NodePackageManager::Bun),
        ("bun.lock", NodePackageManager::Bun),
        ("yarn.lock", NodePackageManager::Yarn),
        ("package-lock.json", NodePackageManager::Npm),
        ("npm-shrinkwrap.json", NodePackageManager::Npm),
        ("pnpm-workspace.yaml", NodePackageManager::Pnpm),
    ];

    for (file, package_manager) in lockfile_order {
        if project_dir.join(file).exists() {
            return package_manager;
        }
    }

    detect_package_manager_from_package_json(&project_dir.join("package.json"))
        .unwrap_or(NodePackageManager::Npm)
}

fn detect_package_manager_from_package_json(path: &Path) -> Option<NodePackageManager> {
    let content = std::fs::read_to_string(path).ok()?;
    let json: Value = serde_json::from_str(&content).ok()?;
    let package_manager = json.get("packageManager")?.as_str()?;
    let name = package_manager
        .split('@')
        .next()?
        .trim()
        .to_ascii_lowercase();

    match name.as_str() {
        "pnpm" => Some(NodePackageManager::Pnpm),
        "bun" => Some(NodePackageManager::Bun),
        "yarn" => Some(NodePackageManager::Yarn),
        "npm" => Some(NodePackageManager::Npm),
        _ => None,
    }
}

fn infer_ultracite_frameworks(project_dir: &Path) -> Vec<String> {
    let mut dependency_names = BTreeSet::new();

    for package_json in collect_package_json_files(project_dir) {
        dependency_names.extend(read_dependency_names(&package_json));
    }

    let has_any = |names: &[&str]| names.iter().any(|name| dependency_names.contains(*name));
    let mut frameworks = Vec::new();

    if has_any(&["react", "react-dom", "next"]) {
        frameworks.push("react".to_string());
    }
    if has_any(&["next"]) {
        frameworks.push("next".to_string());
    }
    if has_any(&["solid-js", "solid-start"]) {
        frameworks.push("solid".to_string());
    }
    if has_any(&["vue", "nuxt", "nuxt3"]) {
        frameworks.push("vue".to_string());
    }
    if has_any(&["svelte", "@sveltejs/kit"]) {
        frameworks.push("svelte".to_string());
    }
    if has_any(&["@builder.io/qwik", "@builder.io/qwik-city"]) {
        frameworks.push("qwik".to_string());
    }
    if has_any(&["remix", "@remix-run/dev", "@remix-run/react"]) {
        frameworks.push("remix".to_string());
    }
    if has_any(&[
        "@tanstack/router-plugin",
        "@tanstack/react-router",
        "@tanstack/react-start",
        "@tanstack/start",
    ]) {
        frameworks.push("tanstack".to_string());
    }
    if has_any(&["@angular/core"]) {
        frameworks.push("angular".to_string());
    }
    if has_any(&["astro"]) {
        frameworks.push("astro".to_string());
    }
    if has_any(&["@nestjs/core", "@nestjs/common"]) {
        frameworks.push("nestjs".to_string());
    }

    frameworks
}

fn read_dependency_names(package_json_path: &Path) -> BTreeSet<String> {
    let mut names = BTreeSet::new();
    let Ok(content) = std::fs::read_to_string(package_json_path) else {
        return names;
    };
    let Ok(json) = serde_json::from_str::<Value>(&content) else {
        return names;
    };

    for key in [
        "dependencies",
        "devDependencies",
        "peerDependencies",
        "optionalDependencies",
    ] {
        if let Some(map) = json.get(key).and_then(Value::as_object) {
            names.extend(map.keys().cloned());
        }
    }

    names
}

fn build_ultracite_init_args(
    package_manager: NodePackageManager,
    frameworks: &[String],
) -> Vec<String> {
    let mut args = vec![
        "--yes".to_string(),
        "ultracite".to_string(),
        "init".to_string(),
        "--quiet".to_string(),
        "--linter".to_string(),
        "biome".to_string(),
        "--pm".to_string(),
        package_manager.as_flag().to_string(),
    ];

    if !frameworks.is_empty() {
        args.push("--frameworks".to_string());
        args.extend(frameworks.iter().cloned());
    }

    args
}

fn parse_node_major_version(version: &str) -> Option<u64> {
    version
        .trim()
        .trim_start_matches('v')
        .split('.')
        .next()?
        .parse()
        .ok()
}

fn primary_output_line(output: &Output) -> String {
    let stdout = String::from_utf8_lossy(&output.stdout).trim().to_string();
    if !stdout.is_empty() {
        return stdout;
    }

    String::from_utf8_lossy(&output.stderr).trim().to_string()
}

fn format_command_failure(program: &str, args: &[String], output: &Output) -> String {
    let stdout = String::from_utf8_lossy(&output.stdout).trim().to_string();
    let stderr = String::from_utf8_lossy(&output.stderr).trim().to_string();
    let details = match (stdout.is_empty(), stderr.is_empty()) {
        (false, false) => format!("stdout: {}\nstderr: {}", stdout, stderr),
        (false, true) => format!("stdout: {}", stdout),
        (true, false) => format!("stderr: {}", stderr),
        (true, true) => "no command output was captured".to_string(),
    };

    format!(
        "Command failed: {} {}\n{}",
        program,
        args.join(" "),
        details
    )
}

/// Executes the installation script for a specific package.
async fn execute_install_script(
    script_name: &str,
    display_name: &str,
    debug: bool,
) -> Result<(), String> {
    let script_path = format!("./package_install_scripts/{}.sh", script_name);
    let script_pathbuf = PathBuf::from(&script_path);

    if debug {
        debug!("Looking for install script at: {}", script_path);
    }

    if !script_pathbuf.exists() {
        return Err(format!("Install script not found: {}", script_path));
    }

    if debug {
        debug!("Making script executable: {}", script_path);
    }

    let chmod_output = Command::new("chmod")
        .arg("+x")
        .arg(&script_path)
        .output()
        .await
        .map_err(|e| format!("Failed to execute chmod command: {}", e))?;

    if !chmod_output.status.success() {
        return Err(format!(
            "Failed to make script executable: {}",
            String::from_utf8_lossy(&chmod_output.stderr)
        ));
    }

    if debug {
        debug!("Executing install script: {}", script_path);
    }

    let script_output = Command::new("bash")
        .arg(&script_path)
        .output()
        .await
        .map_err(|e| format!("Failed to execute install script: {}", e))?;

    if debug {
        debug!("Script output: {:?}", script_output);
    }

    if !script_output.status.success() {
        return Err(format!(
            "Install script failed: {}",
            String::from_utf8_lossy(&script_output.stderr)
        ));
    }

    let stdout = String::from_utf8_lossy(&script_output.stdout);
    if !stdout.trim().is_empty() {
        info!("{}", stdout);
    }

    info!("{} installation completed successfully!", display_name);

    Ok(())
}

#[cfg(test)]
mod tests {
    use super::*;
    use serde_json::json;
    use std::fs;
    use uuid::Uuid;

    fn temp_dir(label: &str) -> PathBuf {
        let dir = env::temp_dir().join(format!("xbp-install-{}-{}", label, Uuid::new_v4()));
        fs::create_dir_all(&dir).expect("create temp dir");
        dir
    }

    fn write_json(path: &Path, value: Value) {
        if let Some(parent) = path.parent() {
            fs::create_dir_all(parent).expect("create parent");
        }
        fs::write(
            path,
            serde_json::to_string_pretty(&value).expect("serialize json"),
        )
        .expect("write json");
    }

    #[test]
    fn install_target_parser_accepts_documented_aliases() {
        assert_eq!(InstallTarget::parse("nginx"), Some(InstallTarget::Nginx));
        assert_eq!(
            InstallTarget::parse("nginx_full"),
            Some(InstallTarget::Nginx)
        );
        assert_eq!(
            InstallTarget::parse("elixir_erlang"),
            Some(InstallTarget::ElixirErlang)
        );
        assert_eq!(
            InstallTarget::parse("trigger-dot-dev"),
            Some(InstallTarget::TriggerDotDev)
        );
        assert_eq!(
            InstallTarget::parse("ultracite"),
            Some(InstallTarget::Ultracite)
        );
    }

    #[test]
    fn install_listing_request_aliases_are_recognized() {
        assert!(is_install_listing_request("help"));
        assert!(is_install_listing_request("--help"));
        assert!(is_install_listing_request("list"));
        assert!(is_install_listing_request("ls"));
        assert!(!is_install_listing_request("docker"));
    }

    #[test]
    fn ultracite_project_resolution_prefers_xbp_root_package_json() {
        let dir = temp_dir("xbp-root-package");
        let current_dir = dir.join("apps").join("web").join("src");
        fs::create_dir_all(&current_dir).expect("create nested dir");
        fs::create_dir_all(dir.join(".xbp")).expect("create xbp dir");
        fs::write(dir.join(".xbp").join("xbp.yaml"), "services: []\n").expect("write xbp yaml");
        write_json(&dir.join("package.json"), json!({ "name": "root-app" }));
        write_json(
            &dir.join("apps").join("web").join("package.json"),
            json!({ "name": "nested-app" }),
        );

        let resolved = resolve_ultracite_project_dir(&current_dir).expect("resolve project dir");
        assert_eq!(resolved, dir);

        let _ = fs::remove_dir_all(&resolved);
    }

    #[test]
    fn ultracite_project_resolution_uses_single_nested_package_when_needed() {
        let dir = temp_dir("xbp-single-nested");
        fs::create_dir_all(dir.join(".xbp")).expect("create xbp dir");
        fs::write(dir.join(".xbp").join("xbp.yaml"), "services: []\n").expect("write xbp yaml");
        write_json(
            &dir.join("apps").join("web").join("package.json"),
            json!({ "name": "web-app" }),
        );

        let resolved = resolve_ultracite_project_dir(&dir).expect("resolve nested package dir");
        assert_eq!(resolved, dir.join("apps").join("web"));

        let _ = fs::remove_dir_all(&dir);
    }

    #[test]
    fn package_manager_detection_prefers_lockfiles() {
        let dir = temp_dir("pm-detection");
        write_json(
            &dir.join("package.json"),
            json!({ "name": "app", "packageManager": "npm@10.0.0" }),
        );
        fs::write(dir.join("pnpm-lock.yaml"), "lockfileVersion: '9.0'\n").expect("write lock");

        assert_eq!(detect_node_package_manager(&dir), NodePackageManager::Pnpm);

        let _ = fs::remove_dir_all(&dir);
    }

    #[test]
    fn framework_inference_scans_workspace_package_json_files() {
        let dir = temp_dir("framework-detection");
        write_json(
            &dir.join("package.json"),
            json!({
                "name": "workspace",
                "workspaces": ["apps/*", "packages/*"]
            }),
        );
        write_json(
            &dir.join("apps").join("web").join("package.json"),
            json!({
                "name": "web",
                "dependencies": {
                    "next": "15.0.0"
                }
            }),
        );
        write_json(
            &dir.join("packages").join("api").join("package.json"),
            json!({
                "name": "api",
                "dependencies": {
                    "@nestjs/core": "11.0.0"
                }
            }),
        );

        let frameworks = infer_ultracite_frameworks(&dir);
        assert_eq!(
            frameworks,
            vec![
                "react".to_string(),
                "next".to_string(),
                "nestjs".to_string()
            ]
        );

        let _ = fs::remove_dir_all(&dir);
    }

    #[test]
    fn ultracite_init_args_are_non_interactive_and_biome_default() {
        let args = build_ultracite_init_args(
            NodePackageManager::Pnpm,
            &["react".to_string(), "next".to_string()],
        );

        assert_eq!(
            args,
            vec![
                "--yes".to_string(),
                "ultracite".to_string(),
                "init".to_string(),
                "--quiet".to_string(),
                "--linter".to_string(),
                "biome".to_string(),
                "--pm".to_string(),
                "pnpm".to_string(),
                "--frameworks".to_string(),
                "react".to_string(),
                "next".to_string(),
            ]
        );
    }

    #[test]
    fn node_major_version_parser_handles_v_prefix() {
        assert_eq!(parse_node_major_version("v22.14.0"), Some(22));
        assert_eq!(parse_node_major_version("20.11.1"), Some(20));
        assert_eq!(parse_node_major_version("not-a-version"), None);
    }
}