waxpkg 0.20.6

Fast Homebrew-compatible package manager
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use crate::cache::Cache;
use crate::error::Result;
use crate::install::InstallState;
use crate::version::is_same_or_newer;
use console::style;
use std::collections::HashMap;

fn print_disabled(disabled: &[(&str, &str, &str)]) {
    if disabled.is_empty() {
        return;
    }
    println!(
        "\n{} {} disabled {}:",
        style("✗").red().bold(),
        disabled.len(),
        if disabled.len() == 1 {
            "package"
        } else {
            "packages"
        }
    );
    for (name, version, reason) in disabled {
        println!(
            "  {} {}  {}",
            style(*name).red(),
            style(format!("@{}", version)).dim(),
            style(*reason).dim()
        );
    }
}

fn print_deprecated(deprecated: &[(&str, &str, &str)]) {
    if deprecated.is_empty() {
        return;
    }
    println!(
        "\n{} {} deprecated {}:",
        style("!").yellow().bold(),
        deprecated.len(),
        if deprecated.len() == 1 {
            "package"
        } else {
            "packages"
        }
    );
    for (name, version, reason) in deprecated {
        println!(
            "  {} {}  {}",
            style(*name).yellow(),
            style(format!("@{}", version)).dim(),
            style(*reason).dim()
        );
    }
}

fn print_outdated(outdated: &[(&str, &str, String)]) {
    if outdated.is_empty() {
        return;
    }
    println!(
        "\n{} {} outdated {}:",
        style("↑").cyan().bold(),
        outdated.len(),
        if outdated.len() == 1 {
            "package"
        } else {
            "packages"
        }
    );
    for (name, installed_ver, latest_ver) in outdated {
        println!(
            "  {} {} → {}",
            style(*name).cyan(),
            style(*installed_ver).dim(),
            style(latest_ver).green()
        );
    }
}

fn print_unknown(unknown: &[(&str, &str)]) {
    if unknown.is_empty() {
        return;
    }
    println!(
        "\n{} {} {} not in any known tap:",
        style("?").dim().bold(),
        unknown.len(),
        if unknown.len() == 1 {
            "package"
        } else {
            "packages"
        }
    );
    for (name, version) in unknown {
        println!(
            "  {} {}",
            style(*name).dim(),
            style(format!("@{}", version)).dim()
        );
    }
}

pub async fn audit(cache: &Cache) -> Result<()> {
    let state = InstallState::new()?;
    state.sync_from_cellar().await.ok();
    let installed = state.load().await?;

    if installed.is_empty() {
        println!("no packages installed");
        return Ok(());
    }

    cache.ensure_fresh().await?;
    let formulae = cache.load_all_formulae().await?;
    let formula_index: HashMap<_, _> = formulae.iter().map(|f| (f.name.as_str(), f)).collect();

    let mut deprecated = Vec::new();
    let mut disabled = Vec::new();
    let mut outdated = Vec::new();
    let mut unknown = Vec::new();

    for (name, pkg) in &installed {
        match formula_index.get(name.as_str()) {
            Some(formula) => {
                if formula.disabled {
                    let reason = formula
                        .disable_reason
                        .as_deref()
                        .unwrap_or("no reason given");
                    disabled.push((name.as_str(), pkg.version.as_str(), reason));
                } else if formula.deprecated {
                    let reason = formula
                        .deprecation_reason
                        .as_deref()
                        .unwrap_or("no reason given");
                    deprecated.push((name.as_str(), pkg.version.as_str(), reason));
                }

                let latest = formula.full_version();
                if !is_same_or_newer(&pkg.version, &latest) {
                    outdated.push((name.as_str(), pkg.version.as_str(), latest));
                }
            }
            None => {
                unknown.push((name.as_str(), pkg.version.as_str()));
            }
        }
    }

    let total_issues = disabled.len() + deprecated.len();

    if total_issues == 0 && outdated.is_empty() && unknown.is_empty() {
        println!(
            "{} {} installed packages — no issues found",
            style("✓").green(),
            installed.len()
        );
        return Ok(());
    }

    print_disabled(&disabled);
    print_deprecated(&deprecated);
    print_outdated(&outdated);
    print_unknown(&unknown);

    println!("\n{} installed, {} issues", installed.len(), total_issues);

    Ok(())
}