use color_eyre::eyre::Context;
use color_eyre::eyre::Result;
use color_eyre::eyre::{OptionExt, bail, eyre};
use jetbrains_toolbox_updater::{FindError, find_jetbrains_toolbox, update_jetbrains_toolbox};
use regex::bytes::Regex;
use rust_i18n::t;
use semver::Version;
use serde::Deserialize;
use std::ffi::OsString;
use std::iter::once;
use std::path::PathBuf;
use std::sync::LazyLock;
use std::{env, path::Path};
use std::{fs, io::Write};
use tempfile::{tempdir, tempfile_in};
use tracing::{debug, error, warn};
use walkdir::WalkDir;

use crate::HOME_DIR;
use crate::command::{CommandExt, Utf8Output};
use crate::execution_context::ExecutionContext;
use crate::executor::{ExecutorChild, ExecutorOutput};
use crate::output_changed_message;
use crate::step::Step;
use crate::sudo::SudoExecuteOpts;
use crate::terminal::{print_separator, shell};
use crate::utils::{PathExt, check_is_python_2_or_shim, require, require_one, require_option, which};
use crate::{
    error::{DryRun, SkipStep, StepFailed, TopgradeError},
    terminal::print_warning,
};

#[cfg(target_os = "linux")]
pub fn is_wsl() -> Result<bool> {
    let output = std::fs::read_to_string("/proc/version").unwrap_or_default();
    debug!("Proc version output: {}", output);
    Ok(output.to_lowercase().contains("microsoft"))
}

#[cfg(not(target_os = "linux"))]
pub fn is_wsl() -> Result<bool> {
    Ok(false)
}

pub fn run_cargo_update(ctx: &ExecutionContext) -> Result<()> {
    let cargo_dir = env::var_os("CARGO_HOME")
        .map_or_else(|| HOME_DIR.join(".cargo"), PathBuf::from)
        .require()?;
    require("cargo").or_else(|_| {
        require_option(
            cargo_dir.join("bin/cargo").if_exists(),
            String::from("No cargo detected"),
        )
    })?;

    let toml_file = cargo_dir.join(".crates.toml").require()?;

    if fs::metadata(&toml_file)?.len() == 0 {
        return Err(SkipStep(format!("{} exists but empty", &toml_file.display())).into());
    }

    print_separator("Cargo");
    let cargo_update = require("cargo-install-update")
        .ok()
        .or_else(|| cargo_dir.join("bin/cargo-install-update").if_exists());

    let Some(cargo_update) = cargo_update else {
        let message = String::from(
            "cargo-update isn't installed so Topgrade can't upgrade cargo packages.\nInstall cargo-update by running `cargo install cargo-update`",
        );
        print_warning(&message);
        return Err(SkipStep(message).into());
    };

    let mut command = ctx.execute(cargo_update);
    command.args(["install-update", "--all"]);
    if ctx.config().cargo_update_git() {
        command.arg("--git");
    }
    if ctx.config().cargo_update_quiet() {
        command.arg("--quiet");
    }
    command.status_checked()?;

    if ctx.config().cleanup() {
        let cargo_cache = require("cargo-cache")
            .ok()
            .or_else(|| cargo_dir.join("bin/cargo-cache").if_exists());
        if let Some(e) = cargo_cache {
            ctx.execute(e).args(["-a"]).status_checked()?;
        } else {
            let message = String::from(
                "cargo-cache isn't installed so Topgrade can't cleanup cargo packages.\nInstall cargo-cache by running `cargo install cargo-cache`",
            );
            print_warning(message);
        }
    }

    Ok(())
}

pub fn run_flutter_upgrade(ctx: &ExecutionContext) -> Result<()> {
    let flutter = require("flutter")?;

    print_separator("Flutter");
    ctx.execute(flutter).arg("upgrade").status_checked()
}

pub fn run_gem(ctx: &ExecutionContext) -> Result<()> {
    let gem = require("gem")?;
    HOME_DIR.join(".gem").require()?;

    print_separator("Gems");

    let mut command = ctx.execute(gem);
    command.arg("update");

    if env::var_os("RBENV_SHELL").is_none() {
        command.arg("--user-install");
    } else {
        debug!("Detected rbenv. Avoiding --user-install");
    }

    command.status_checked()
}

pub fn run_rubygems(ctx: &ExecutionContext) -> Result<()> {
    HOME_DIR.join(".gem").require()?;
    let gem = require("gem")?;

    print_separator("RubyGems");
    let gem_path_str = gem.as_os_str();
    if gem_path_str.to_str().unwrap().contains("asdf")
        || gem_path_str.to_str().unwrap().contains("mise")
        || gem_path_str.to_str().unwrap().contains(".rbenv")
        || gem_path_str.to_str().unwrap().contains(".rvm")
    {
        ctx.execute(gem).args(["update", "--system"]).status_checked()?;
    } else if !Path::new("/usr/lib/ruby/vendor_ruby/rubygems/defaults/operating_system.rb").exists() {
        let sudo = ctx.require_sudo()?;
        sudo.execute_opts(ctx, &gem, SudoExecuteOpts::new().preserve_env().set_home())?
            .args(["update", "--system"])
            .status_checked()?;
    }

    Ok(())
}

pub fn run_haxelib_update(ctx: &ExecutionContext) -> Result<()> {
    let haxelib = require("haxelib")?;

    let haxelib_dir = PathBuf::from(
        std::str::from_utf8(&ctx.execute(&haxelib).always().arg("config").output_checked()?.stdout)?.trim(),
    )
    .require()?;

    let directory_writable = tempfile_in(&haxelib_dir).is_ok();
    debug!("{:?} writable: {}", haxelib_dir, directory_writable);

    print_separator("haxelib");

    let mut command = if directory_writable {
        ctx.execute(&haxelib)
    } else {
        let sudo = ctx.require_sudo()?;
        sudo.execute(ctx, &haxelib)?
    };

    command.arg("update").status_checked()
}

pub fn run_getnf_update(ctx: &ExecutionContext) -> Result<()> {
    let getnf = require("getnf")?;

    print_separator("getnf");

    ctx.execute(getnf).args(["-U"]).status_checked()
}

pub fn run_sheldon(ctx: &ExecutionContext) -> Result<()> {
    let sheldon = require("sheldon")?;

    print_separator("Sheldon");

    ctx.execute(sheldon).args(["lock", "--update"]).status_checked()
}

pub fn run_fossil(ctx: &ExecutionContext) -> Result<()> {
    let fossil = require("fossil")?;

    print_separator("Fossil");

    ctx.execute(fossil).args(["all", "sync"]).status_checked()
}

pub fn run_micro(ctx: &ExecutionContext) -> Result<()> {
    let micro = require("micro")?;

    print_separator("micro");

    let stdout = ctx
        .execute(micro)
        .args(["-plugin", "update"])
        .output_checked_utf8()?
        .stdout;
    std::io::stdout().write_all(stdout.as_bytes())?;

    if stdout.contains("Nothing to install / update") || stdout.contains("One or more plugins installed") {
        Ok(())
    } else {
        Err(eyre!("micro output does not indicate success: {}", stdout))
    }
}

#[cfg(not(any(
    target_os = "freebsd",
    target_os = "openbsd",
    target_os = "netbsd",
    target_os = "dragonfly"
)))]
pub fn run_apm(ctx: &ExecutionContext) -> Result<()> {
    let apm = require("apm")?;

    print_separator("Atom Package Manager");

    ctx.execute(apm).args(["upgrade", "--confirm=false"]).status_checked()
}

enum Aqua {
    JetBrainsAqua(PathBuf),
    AquaCLI(PathBuf),
}

impl Aqua {
    fn aqua_cli(self) -> Result<PathBuf> {
        match self {
            Aqua::AquaCLI(aqua) => Ok(aqua),
            Aqua::JetBrainsAqua(_) => {
                Err(SkipStep("Command `aqua` probably points to JetBrains Aqua".to_string()).into())
            }
        }
    }

    fn jetbrains_aqua(self) -> Result<PathBuf> {
        match self {
            Aqua::JetBrainsAqua(path) => Ok(path),
            Aqua::AquaCLI(_) => Err(SkipStep("Command `aqua` probably points to Aqua CLI".to_string()).into()),
        }
    }

    fn get(ctx: &ExecutionContext) -> Result<Self> {
        let aqua = require("aqua")?;

        // Check if `aqua --help` mentions "aqua". JetBrains Aqua does not, Aqua CLI does.
        let output = ctx.execute(&aqua).always().arg("--help").output_checked()?;

        if String::from_utf8(output.stdout)?.contains("aqua") {
            debug!("Detected `aqua` as Aqua CLI");
            Ok(Self::AquaCLI(aqua))
        } else {
            debug!("Detected `aqua` as JetBrains Aqua");
            Ok(Self::JetBrainsAqua(aqua))
        }
    }
}

pub fn run_aqua(ctx: &ExecutionContext) -> Result<()> {
    let aqua = Aqua::get(ctx)?.aqua_cli()?;

    print_separator("Aqua");

    ctx.execute(&aqua).arg("update-aqua").status_checked()?;

    // Don't run plain `aqua update` because it uses the current directory by default.
    if let Ok(path) = env::var("AQUA_GLOBAL_CONFIG") {
        ctx.execute(&aqua)
            .args(["update", "--config", &path])
            .status_checked()?;
    }

    Ok(())
}

pub fn run_rustup(ctx: &ExecutionContext) -> Result<()> {
    let rustup = require("rustup")?;

    print_separator("rustup");

    ctx.execute(rustup)
        .arg("update")
        .args(ctx.config().rustup_channels())
        .status_checked()
}

pub fn run_rye(ctx: &ExecutionContext) -> Result<()> {
    let rye = require("rye")?;

    print_separator("Rye");
    ctx.execute(rye).args(["self", "update"]).status_checked()
}

pub fn run_elan(ctx: &ExecutionContext) -> Result<()> {
    let elan = require("elan")?;

    print_separator("elan");

    let version_output = ctx.execute(&elan).always().arg("--version").output_checked_utf8()?;
    let version_string = version_output.stdout.split_whitespace().nth(1).ok_or_else(|| {
        eyre!(output_changed_message!(
            "elan --version",
            "Expected version after 'elan '"
        ))
    })?;
    let version = Version::parse(version_string)
        .wrap_err_with(|| output_changed_message!("elan --version", "Invalid version"))?;
    debug!("Detected elan version as: {}", version);

    let disabled_error_msg = "self-update is disabled";
    let executor_output = ctx.execute(&elan).args(["self", "update"]).output()?;
    match executor_output {
        ExecutorOutput::Wet(command_output) => {
            if command_output.status.success() {
                // Flush the captured output
                std::io::stdout().lock().write_all(&command_output.stdout).unwrap();
                std::io::stderr().lock().write_all(&command_output.stderr).unwrap();
            } else {
                let stderr_as_str = std::str::from_utf8(&command_output.stderr).unwrap();
                if stderr_as_str.contains(disabled_error_msg) {
                    // `elan` is externally managed, we cannot do the update. Users
                    // won't see any error message because Topgrade captures them
                    // all.
                } else {
                    // `elan` is NOT externally managed, `elan self update` can
                    // be performed, but the invocation failed, so we report the
                    // error to the user and error out.
                    std::io::stdout().lock().write_all(&command_output.stdout).unwrap();
                    std::io::stderr().lock().write_all(&command_output.stderr).unwrap();

                    return Err(StepFailed.into());
                }
            }
        }
        ExecutorOutput::Dry => { /* nothing needed because in a dry run */ }
    }

    // In elan 4.0.0, `elan update` was removed, as toolchains are now updated automatically
    if version < Version::new(4, 0, 0) {
        ctx.execute(&elan).arg("update").status_checked()?;
    }

    Ok(())
}

pub fn run_juliaup(ctx: &ExecutionContext) -> Result<()> {
    let juliaup = require("juliaup")?;

    print_separator("juliaup");

    if juliaup.canonicalize().is_ok_and(|p| p.is_descendant_of(&HOME_DIR)) {
        ctx.execute(&juliaup).args(["self", "update"]).status_checked()?;
    }

    ctx.execute(&juliaup).arg("update").status_checked()?;

    if ctx.config().cleanup() {
        ctx.execute(&juliaup).arg("gc").status_checked()?;
    }

    Ok(())
}

pub fn run_choosenim(ctx: &ExecutionContext) -> Result<()> {
    let choosenim = require("choosenim")?;

    print_separator("choosenim");

    ctx.execute(&choosenim).args(["update", "self"]).status_checked()?;
    ctx.execute(&choosenim).args(["update", "stable"]).status_checked()
}

pub fn run_krew_upgrade(ctx: &ExecutionContext) -> Result<()> {
    let krew = require("kubectl-krew")?;

    print_separator("Krew");

    ctx.execute(krew).args(["upgrade"]).status_checked()
}

pub fn run_gcloud_components_update(ctx: &ExecutionContext) -> Result<()> {
    let gcloud = require("gcloud")?;

    if gcloud.starts_with("/snap") {
        return Ok(());
    }

    print_separator("gcloud");

    let output = ctx
        .execute(&gcloud)
        .args(["components", "update", "--quiet"])
        .output()?;

    let output = match output {
        ExecutorOutput::Wet(wet) => wet,
        ExecutorOutput::Dry => return Ok(()),
    };

    // When `gcloud` is installed via `apt`, the components update via `apt` as well
    let stderr = String::from_utf8(output.stderr)?;
    if stderr.contains("You cannot perform this action because the Google Cloud CLI component manager")
        && stderr.contains("is disabled for this installation")
    {
        return Err(
            SkipStep("The Google Cloud CLI component manager is disabled for this installation".to_string()).into(),
        );
    }

    // Flush captured output
    std::io::stdout().write_all(&output.stdout)?;
    std::io::stderr().write_all(stderr.as_bytes())?;

    if !output.status.success() {
        bail!("gcloud component update failed");
    }

    Ok(())
}

pub fn run_jetpack(ctx: &ExecutionContext) -> Result<()> {
    let jetpack = require("jetpack")?;

    print_separator("Jetpack");

    ctx.execute(jetpack).args(["global", "update"]).status_checked()
}

pub fn run_rtcl(ctx: &ExecutionContext) -> Result<()> {
    let rupdate = require("rupdate")?;

    print_separator("rtcl");

    ctx.execute(rupdate).status_checked()
}

pub fn run_opam_update(ctx: &ExecutionContext) -> Result<()> {
    let opam = require("opam")?;

    print_separator("OCaml Package Manager");

    ctx.execute(&opam).arg("update").status_checked()?;

    let mut command = ctx.execute(&opam);
    command.arg("upgrade");
    if ctx.config().yes(Step::Opam) {
        command.arg("--yes");
    }
    command.status_checked()?;

    if ctx.config().cleanup() {
        ctx.execute(&opam).arg("clean").status_checked()?;
    }

    Ok(())
}

pub fn run_vcpkg_update(ctx: &ExecutionContext) -> Result<()> {
    let vcpkg = require("vcpkg")?;
    print_separator("vcpkg");

    #[cfg(unix)]
    let is_root_install = !&vcpkg.starts_with("/home");

    #[cfg(not(unix))]
    let is_root_install = false;

    let mut command = if is_root_install {
        let sudo = ctx.require_sudo()?;
        sudo.execute(ctx, &vcpkg)?
    } else {
        ctx.execute(&vcpkg)
    };

    command.args(["upgrade", "--no-dry-run"]).status_checked()
}

enum VSCodeVariant {
    Antigravity,
    Code,
    CodeInsiders,
    Codium,
    CodiumInsiders,
    Cursor,
    Windsurf,
}

impl VSCodeVariant {
    fn name(&self) -> &'static str {
        match self {
            VSCodeVariant::Antigravity => "Antigravity",
            VSCodeVariant::Code => "VSCode",
            VSCodeVariant::CodeInsiders => "VSCode Insiders",
            VSCodeVariant::Codium => "VSCodium",
            VSCodeVariant::CodiumInsiders => "VSCodium Insiders",
            VSCodeVariant::Cursor => "Cursor",
            VSCodeVariant::Windsurf => "Windsurf",
        }
    }

    fn bin_name(&self) -> &'static str {
        match self {
            VSCodeVariant::Antigravity => "antigravity",
            VSCodeVariant::Code => "code",
            VSCodeVariant::CodeInsiders => "code-insiders",
            VSCodeVariant::Codium => "codium",
            VSCodeVariant::CodiumInsiders => "codium-insiders",
            VSCodeVariant::Cursor => "cursor",
            VSCodeVariant::Windsurf => "windsurf",
        }
    }

    fn display_name(&self) -> &'static str {
        match self {
            VSCodeVariant::Antigravity => "Antigravity extensions",
            VSCodeVariant::Code => "Visual Studio Code extensions",
            VSCodeVariant::CodeInsiders => "Visual Studio Code Insiders extensions",
            VSCodeVariant::Codium => "VSCodium extensions",
            VSCodeVariant::CodiumInsiders => "VSCodium Insiders extensions",
            VSCodeVariant::Cursor => "Cursor extensions",
            VSCodeVariant::Windsurf => "Windsurf extensions",
        }
    }

    fn supports_profiles(&self) -> bool {
        match self {
            VSCodeVariant::Antigravity | VSCodeVariant::Code | VSCodeVariant::CodeInsiders | VSCodeVariant::Cursor => {
                true
            }
            VSCodeVariant::Codium | VSCodeVariant::CodiumInsiders | VSCodeVariant::Windsurf => false,
        }
    }
}

/// Runs extension updates for VSCode-compatible editors (VSCode, VSCode Insiders, VSCodium,
/// VSCodium Insiders, Cursor, Antigravity), as the process is the same for all.
fn run_vscode_compatible(variant: VSCodeVariant, ctx: &ExecutionContext) -> Result<()> {
    // Calling VSCode/VSCodium in WSL may install a server instead of updating extensions (https://github.com/topgrade-rs/topgrade/issues/594#issuecomment-1782157367)
    if is_wsl()? {
        return Err(SkipStep(String::from("Should not run in WSL")).into());
    }

    let name = variant.name();
    let bin_name = variant.bin_name();
    let bin = require(bin_name)?;

    // VSCode has update command only since 1.86 version ("january 2024" update), disable the update for prior versions
    //
    // The output of `code --version` has two possible formats:
    // 1. 3 lines: version, git commit, instruction set. We parse only the first one
    //    This is confirmed on an install from the apt repository
    // 2. 1 line: 'bin-name 1.2.3 (commit 123abc)', example: `code-insiders 1.106.0 (commit 48cdf17f0e856e1daca2ad2747814085a2453df0)`
    //    See https://github.com/topgrade-rs/topgrade/issues/1605, confirmed from Microsoft website
    // This should apply to VSCodium as well.

    let version_output = ctx.execute(&bin).always().arg("--version").output_checked_utf8()?;

    debug!(version_output.stdout);

    let line = version_output.stdout.lines().next().ok_or_else(|| {
        eyre!(output_changed_message!(
            &format!("{bin_name} --version"),
            "No first line"
        ))
    })?;

    let version_string = if line.starts_with(bin_name) {
        // Case 2
        line.split_whitespace().nth(1).ok_or_else(|| {
            eyre!(output_changed_message!(
                &format!("{bin_name} --version"),
                format!("No version after '{bin_name}'")
            ))
        })?
    } else {
        // Case 1
        // The whole line should be the version
        // Insiders versions have "-insider" suffix which we can simply ignore.
        line.trim_end_matches("-insider")
    };

    // Strip leading zeroes because `semver` does not allow them, but VSCodium uses them sometimes.
    //  This is not the case for VSCode, but just in case, and it can't really cause any issues.
    let version_string = version_string
        .split('.')
        .map(|s| if s == "0" { "0" } else { s.trim_start_matches('0') })
        .collect::<Vec<_>>()
        .join(".");

    let version = Version::parse(&version_string)
        // Raise any errors in parsing the version
        //  The benefit of handling VSCodium versions so old that the version format is something
        //  unexpected is outweighed by the benefit of failing fast on new breaking versions
        .wrap_err_with(|| output_changed_message!(&format!("{bin_name} --version"), "Invalid version"))?;

    debug!("Detected {name} version as: {version}");

    if version < Version::new(1, 86, 0) {
        return Err(SkipStep(format!("Too old {name} version to have update extensions command")).into());
    }

    print_separator(variant.display_name());

    let mut cmd = ctx.execute(bin);
    // If the variant supports profiles
    if variant.supports_profiles() {
        // And we have configured use of a profile
        if let Some(profile) = ctx.config().vscode_profile() {
            // Add the profile argument
            cmd.arg("--profile").arg(profile);
        }
    }

    cmd.arg("--update-extensions").status_checked()
}

/// Make VSCodium a separate step because:
///
/// 1. Users could use both VSCode and VSCodium
/// 2. Just in case, VSCodium could have incompatible changes with VSCode
pub fn run_vscodium_extensions_update(ctx: &ExecutionContext) -> Result<()> {
    run_vscode_compatible(VSCodeVariant::Codium, ctx)
}

pub fn run_vscode_extensions_update(ctx: &ExecutionContext) -> Result<()> {
    run_vscode_compatible(VSCodeVariant::Code, ctx)
}

pub fn run_vscode_insiders_extensions_update(ctx: &ExecutionContext) -> Result<()> {
    run_vscode_compatible(VSCodeVariant::CodeInsiders, ctx)
}

pub fn run_vscodium_insiders_extensions_update(ctx: &ExecutionContext) -> Result<()> {
    run_vscode_compatible(VSCodeVariant::CodiumInsiders, ctx)
}

pub fn run_cursor_extensions_update(ctx: &ExecutionContext) -> Result<()> {
    run_vscode_compatible(VSCodeVariant::Cursor, ctx)
}

pub fn run_windsurf_extensions_update(ctx: &ExecutionContext) -> Result<()> {
    run_vscode_compatible(VSCodeVariant::Windsurf, ctx)
}

pub fn run_antigravity_extensions_update(ctx: &ExecutionContext) -> Result<()> {
    run_vscode_compatible(VSCodeVariant::Antigravity, ctx)
}

pub fn run_pi(ctx: &ExecutionContext) -> Result<()> {
    let pi = require("pi")?;
    let temp_dir = tempdir()?;

    print_separator("pi");

    // `pi` reads project-local settings from `./.pi/settings.json`, so run
    // from a fresh directory to restrict this step to global packages.
    ctx.execute(pi)
        .current_dir(temp_dir.path())
        .arg("update")
        .status_checked()
}

pub fn run_pipx_update(ctx: &ExecutionContext) -> Result<()> {
    let pipx = require("pipx")?;
    print_separator("pipx");

    let mut command_args = vec!["upgrade-all", "--include-injected"];

    // pipx version 1.4.0 introduced a new command argument `pipx upgrade-all --quiet`
    // (see https://pipx.pypa.io/stable/docs/#pipx-upgrade-all)
    let version_str = ctx
        .execute(&pipx)
        .always()
        .args(["--version"])
        .output_checked_utf8()
        .map(|s| s.stdout.trim().to_owned());
    let version = Version::parse(&version_str?);
    if let Ok(version) = version
        && version >= Version::new(1, 4, 0)
    {
        command_args.push("--quiet");
    }

    ctx.execute(pipx).args(command_args).status_checked()
}

pub fn run_pipxu_update(ctx: &ExecutionContext) -> Result<()> {
    let pipxu = require("pipxu")?;
    print_separator("pipxu");

    ctx.execute(pipxu).args(["upgrade", "--all"]).status_checked()
}

pub fn run_conda_update(ctx: &ExecutionContext) -> Result<()> {
    let conda = require("conda")?;

    let output = ctx
        .execute(&conda)
        .always()
        .args(["config", "--show", "auto_activate"])
        .output_checked_utf8()?;
    debug!("Conda output: {}", output.stdout);
    if output.stdout.contains("False") {
        return Err(SkipStep("auto_activate is set to False".to_string()).into());
    }

    print_separator("Conda");

    // Update named environments, starting with the always-present "base"
    let base_env_name = "base".to_string();
    let addl_env_names = ctx.config().conda_env_names().into_iter().flatten();
    let env_names = once(&base_env_name).chain(addl_env_names);

    for env_name in env_names {
        let mut command = ctx.execute(&conda);
        command.args(["update", "--all", "-n", env_name]);
        if ctx.config().yes(Step::Conda) {
            command.arg("--yes");
        }
        command.status_checked()?;
    }

    // Update any environments given by path
    if let Some(env_paths) = ctx.config().conda_env_paths() {
        for env_path in env_paths.iter() {
            let mut command = ctx.execute(&conda);
            command.args(["update", "--all", "-p", env_path]);
            if ctx.config().yes(Step::Conda) {
                command.arg("--yes");
            }
            command.status_checked()?;
        }
    }

    // Cleanup (conda clean) is global (not tied to a particular environment)
    if ctx.config().cleanup() {
        let mut command = ctx.execute(conda);
        command.args(["clean", "--all"]);
        if ctx.config().yes(Step::Conda) {
            command.arg("--yes");
        }
        command.status_checked()?;
    }

    Ok(())
}

pub fn run_pixi_update(ctx: &ExecutionContext) -> Result<()> {
    let pixi = require("pixi")?;
    print_separator("Pixi");

    // Check if `pixi --help` mentions self-update, if yes, self-update must be enabled.
    // pixi self-update --help works regardless of whether the feature is enabled.
    let top_level_help_output = ctx.execute(&pixi).always().arg("--help").output_checked_utf8()?;

    if top_level_help_output.stdout.contains("self-update") {
        let self_update_help_output = ctx
            .execute(&pixi)
            .always()
            .args(["self-update", "--help"])
            .output_checked_utf8()?;
        let mut cmd = ctx.execute(&pixi);
        cmd.arg("self-update");
        // check if help mentions --no-release-note to check if it is supported
        if self_update_help_output.stdout.contains("--no-release-note") && !ctx.config().show_pixi_release_notes() {
            cmd.arg("--no-release-note");
        }
        cmd.status_checked()?;
    }

    ctx.execute(&pixi).args(["global", "update"]).status_checked()
}

pub fn run_mamba_update(ctx: &ExecutionContext) -> Result<()> {
    let mamba = require("mamba")?;

    print_separator("Mamba");

    let mut command = ctx.execute(&mamba);
    command.args(["update", "--all", "-n", "base"]);
    if ctx.config().yes(Step::Mamba) {
        command.arg("--yes");
    }
    command.status_checked()?;

    if ctx.config().cleanup() {
        let mut command = ctx.execute(&mamba);
        command.args(["clean", "--all"]);
        if ctx.config().yes(Step::Mamba) {
            command.arg("--yes");
        }
        command.status_checked()?;
    }

    Ok(())
}

pub fn run_miktex_packages_update(ctx: &ExecutionContext) -> Result<()> {
    let miktex = require("miktex")?;
    print_separator("miktex");

    ctx.execute(miktex).args(["packages", "update"]).status_checked()
}

pub fn run_pip3_update(ctx: &ExecutionContext) -> Result<()> {
    let py = require("python").and_then(|p| check_is_python_2_or_shim(ctx, p));
    let py3 = require("python3").and_then(|p| check_is_python_2_or_shim(ctx, p));

    let python3 = match (py, py3) {
        // prefer `python` if it is available and is a valid Python 3.
        (Ok(py), _) => py,
        (Err(_), Ok(py3)) => py3,
        (Err(py_err), Err(py3_err)) => {
            return Err(SkipStep(format!("Skip due to following reasons: {py_err} {py3_err}")).into());
        }
    };

    ctx.execute(&python3)
        .always()
        .args(["-m", "pip"])
        .output_checked_utf8()
        .map_err(|_| SkipStep("pip does not exist".to_string()))?;

    let check_extern_managed_script = "import sysconfig; from os import path; print('Y') if path.isfile(path.join(sysconfig.get_path('stdlib'), 'EXTERNALLY-MANAGED')) else print('N')";
    let output = ctx
        .execute(&python3)
        .always()
        .args(["-c", check_extern_managed_script])
        .output_checked_utf8()?;
    let stdout = output.stdout.trim();
    let extern_managed = match stdout {
        "N" => false,
        "Y" => true,
        _ => unreachable!("unexpected output from `check_extern_managed_script`"),
    };

    let allow_break_sys_pkg = match ctx
        .execute(&python3)
        .always()
        .args(["-m", "pip", "config", "get", "global.break-system-packages"])
        .output_checked_utf8()
    {
        Ok(output) => {
            let stdout = output.stdout.trim();
            stdout.parse::<bool>().wrap_err_with(|| {
                output_changed_message!(
                    "pip config get global.break-system-packages",
                    "unexpected output that is not `true` or `false`"
                )
            })?
        }
        // it can fail because this key may not be set
        //
        // ```sh
        // $ pip --version
        // pip 23.0.1 from /usr/lib/python3/dist-packages/pip (python 3.11)
        //
        // $ pip config get global.break-system-packages
        // ERROR: No such key - global.break-system-packages
        //
        // $ echo $?
        // 1
        // ```
        Err(_) => false,
    };

    debug!("pip3 externally managed: {} ", extern_managed);
    debug!("pip3 global.break-system-packages: {}", allow_break_sys_pkg);

    // Even though pip3 is externally managed, we should still update it if
    // `global.break-system-packages` is true.
    if extern_managed && !allow_break_sys_pkg {
        return Err(SkipStep(
            "Skip pip3 update as it is externally managed and global.break-system-packages is not true".to_string(),
        )
        .into());
    }

    print_separator("pip3");
    if env::var("VIRTUAL_ENV").is_ok() {
        print_warning("This step is skipped when running inside a virtual environment");
        return Err(SkipStep("Does not run inside a virtual environment".to_string()).into());
    }

    ctx.execute(&python3)
        .args(["-m", "pip", "install", "--upgrade", "--user", "pip"])
        .status_checked()
}

pub fn run_pip_review_update(ctx: &ExecutionContext) -> Result<()> {
    let pip_review = require("pip-review")?;

    print_separator("pip-review");

    if !ctx.config().enable_pip_review() {
        print_warning(
            "Pip-review is disabled by default. Enable it by setting enable_pip_review=true in the configuration.",
        );
        return Err(SkipStep(String::from("Pip-review is disabled by default")).into());
    }
    ctx.execute(pip_review).arg("--auto").status_checked_with_codes(&[1])?;

    Ok(())
}

pub fn run_pip_review_local_update(ctx: &ExecutionContext) -> Result<()> {
    let pip_review = require("pip-review")?;

    print_separator("pip-review (local)");

    if !ctx.config().enable_pip_review_local() {
        print_warning(
            "Pip-review (local) is disabled by default. Enable it by setting enable_pip_review_local=true in the configuration.",
        );
        return Err(SkipStep(String::from("Pip-review (local) is disabled by default")).into());
    }
    ctx.execute(pip_review)
        .arg("--local")
        .arg("--auto")
        .status_checked_with_codes(&[1])?;

    Ok(())
}

pub fn run_pipupgrade_update(ctx: &ExecutionContext) -> Result<()> {
    let pipupgrade = require("pipupgrade")?;

    print_separator("Pipupgrade");
    if !ctx.config().enable_pipupgrade() {
        print_warning(
            "Pipupgrade is disabled by default. Enable it by setting enable_pipupgrade=true in the configuration.",
        );
        return Err(SkipStep(String::from("Pipupgrade is disabled by default")).into());
    }
    ctx.execute(pipupgrade)
        .args(ctx.config().pipupgrade_arguments().split_whitespace())
        .status_checked()?;

    Ok(())
}

pub fn run_stack_update(ctx: &ExecutionContext) -> Result<()> {
    if require("ghcup").is_ok() {
        // `ghcup` is present and probably(?) being used to install `stack`.
        // Don't upgrade `stack`, let `ghcup` handle it. Per `ghcup install stack`:
        // !!! Additionally, you should upgrade stack only through ghcup and not use 'stack upgrade' !!!
        return Ok(());
    }

    let stack = require("stack")?;
    print_separator("stack");

    ctx.execute(stack).arg("upgrade").status_checked()
}

pub fn run_ghcup_update(ctx: &ExecutionContext) -> Result<()> {
    let ghcup = require("ghcup")?;
    print_separator("ghcup");

    ctx.execute(ghcup).arg("upgrade").status_checked()
}

pub fn run_tldr(ctx: &ExecutionContext) -> Result<()> {
    let tldr = require("tldr")?;

    print_separator("TLDR");

    ctx.execute(tldr).arg("--update").status_checked()
}

pub fn run_tlmgr_update(ctx: &ExecutionContext) -> Result<()> {
    if cfg!(any(target_os = "linux", target_os = "android")) && !ctx.config().enable_tlmgr_linux() {
        return Err(SkipStep(String::from(
            "tlmgr must be explicitly enabled in the configuration to run in Android/Linux",
        ))
        .into());
    }

    let tlmgr = require("tlmgr")?;
    let kpsewhich = require("kpsewhich")?;
    let tlmgr_directory = {
        let mut d = PathBuf::from(
            ctx.execute(kpsewhich)
                .always()
                .arg("-var-value=SELFAUTOPARENT")
                .output_checked_utf8()?
                .stdout
                .trim(),
        );
        d.push("tlpkg");
        d
    }
    .require()?;

    let directory_writable = tempfile_in(&tlmgr_directory).is_ok();
    debug!("{:?} writable: {}", tlmgr_directory, directory_writable);

    print_separator("TeX Live package manager");

    let mut command = if directory_writable {
        ctx.execute(&tlmgr)
    } else {
        let sudo = ctx.require_sudo()?;
        sudo.execute(ctx, &tlmgr)?
    };
    command.args(["update", "--self", "--all"]);

    command.status_checked()
}

pub fn run_chezmoi_update(ctx: &ExecutionContext) -> Result<()> {
    let chezmoi = require("chezmoi")?;

    PathBuf::from(
        ctx.execute(&chezmoi)
            .always()
            .arg("source-path")
            .output_checked_utf8()?
            .stdout
            .trim(),
    )
    .require()?;

    let mut cmd = ctx.execute(&chezmoi);

    print_separator("chezmoi");

    cmd.arg("update");

    if ctx.config().chezmoi_exclude_encrypted() {
        cmd.arg("--exclude=encrypted");
    }

    cmd.status_checked()
}

pub fn run_myrepos_update(ctx: &ExecutionContext) -> Result<()> {
    let myrepos = require("mr")?;
    HOME_DIR.join(".mrconfig").require()?;

    print_separator("myrepos");

    ctx.execute(&myrepos)
        .arg("--directory")
        .arg(&*HOME_DIR)
        .arg("checkout")
        .status_checked()?;
    ctx.execute(&myrepos)
        .arg("--directory")
        .arg(&*HOME_DIR)
        .arg("update")
        .status_checked()
}

pub fn run_custom_command(name: &str, command: &str, ctx: &ExecutionContext) -> Result<()> {
    print_separator(name);
    let mut exec = ctx.execute(shell());
    #[cfg(unix)]
    let command = if let Some(command) = command.strip_prefix("-i ") {
        exec.arg("-i");
        command
    } else {
        command
    };
    if ctx.config().yes(Step::CustomCommands) {
        exec.env("TOPGRADE_YES", "1");
    }
    if ctx.config().cleanup() {
        exec.env("TOPGRADE_CLEANUP", "1");
    }
    exec.arg("-c").arg(command).status_checked()
}

pub fn run_composer_update(ctx: &ExecutionContext) -> Result<()> {
    let composer = require("composer")?;
    let composer_home = ctx
        .execute(&composer)
        .always()
        .args(["global", "config", "--absolute", "--quiet", "home"])
        .output_checked_utf8()
        .map_err(|e| SkipStep(t!("Error getting the composer directory: {error}", error = e).to_string()))
        .map(|s| PathBuf::from(s.stdout.trim()))?
        .require()?;

    if !composer_home.is_descendant_of(&HOME_DIR) {
        return Err(SkipStep(
            t!(
                "Composer directory {composer_home} isn't a descendant of the user's home directory",
                composer_home = composer_home.display()
            )
            .to_string(),
        )
        .into());
    }

    print_separator(t!("Composer"));

    if ctx.config().composer_self_update() {
        if cfg!(unix) {
            // If self-update fails without sudo then there's probably an update
            let has_update = match ctx.execute(&composer).arg("self-update").output()? {
                ExecutorOutput::Wet(output) => !output.status.success(),
                _ => false,
            };

            if has_update {
                let sudo = ctx.require_sudo()?;
                sudo.execute(ctx, &composer)?.arg("self-update").status_checked()?;
            }
        } else {
            ctx.execute(&composer).arg("self-update").status_checked()?;
        }
    }

    let output = ctx.execute(&composer).args(["global", "update"]).output()?;
    if let ExecutorOutput::Wet(output) = output {
        let output: Utf8Output = output.try_into()?;
        print!("{}\n{}", output.stdout, output.stderr);
        if (output.stdout.contains("valet") || output.stderr.contains("valet"))
            && let Some(valet) = which("valet")
        {
            ctx.execute(valet).arg("install").status_checked()?;
        }
    }

    Ok(())
}

pub fn run_dotnet_upgrade(ctx: &ExecutionContext) -> Result<()> {
    let dotnet = require("dotnet")?;

    // Skip when the `dotnet tool list` subcommand fails.
    // (This is expected when a dotnet runtime is installed but no SDK.)
    let output = match ctx
        .execute(&dotnet)
        .always()
        .args(["tool", "list", "--global"])
        // dotnet will print a greeting message on its first run, from this question:
        // https://stackoverflow.com/q/70493706/14092446
        // Setting `DOTNET_NOLOGO` to `true` should disable it
        .env("DOTNET_NOLOGO", "true")
        .output_checked_utf8()
    {
        Ok(output) => output,
        Err(_) => {
            return Err(SkipStep(
                t!("Error running `dotnet tool list`. This is expected when a dotnet runtime is installed but no SDK.")
                    .to_string(),
            )
            .into());
        }
    };

    let mut in_header = true;
    let mut packages = output
        .stdout
        .lines()
        // Skip the header:
        //
        // Package Id      Version      Commands
        // -------------------------------------
        .skip_while(|line| {
            // The .NET SDK respects locale, so the header can be printed
            // in languages other than English. The separator should hopefully
            // always be at least 10 -'s long.
            if in_header && line.starts_with("----------") {
                in_header = false;
                true
            } else {
                in_header
            }
        })
        .filter(|line| !line.is_empty())
        .peekable();

    if packages.peek().is_none() {
        return Err(SkipStep(t!("No dotnet global tools installed").to_string()).into());
    }

    print_separator(".NET");

    for package in packages {
        let package_name = package.split_whitespace().next().unwrap();
        ctx.execute(&dotnet)
            .args(["tool", "update", package_name, "--global"])
            .status_checked()
            .with_context(|| format!("Failed to update .NET package {package_name:?}"))?;
    }

    Ok(())
}

pub fn run_powershell(ctx: &ExecutionContext) -> Result<()> {
    let powershell = ctx.require_powershell()?;

    print_separator(t!("Powershell Modules Update"));

    let mut cmd = "Update-Module".to_string();

    if ctx.config().verbose() {
        cmd.push_str(" -Verbose");
    }
    if ctx.config().yes(Step::Powershell) {
        cmd.push_str(" -Force");
    }

    println!("{}", t!("Updating modules..."));

    if powershell.is_pwsh() {
        // For PowerShell Core, run Update-Module without sudo since it defaults to CurrentUser scope
        // and Update-Module updates all modules regardless of their original installation scope
        powershell.build_command(ctx, &cmd, false)?.status_checked()
    } else {
        // For (Windows) PowerShell, use sudo since it defaults to AllUsers scope
        // and may need administrator privileges
        powershell.build_command(ctx, &cmd, true)?.status_checked()
    }
}

enum Hx {
    Helix(PathBuf),
    HxHexdump,
}

impl Hx {
    fn helix(self) -> Result<PathBuf> {
        match self {
            Hx::Helix(hx) => Ok(hx),
            Hx::HxHexdump => {
                Err(SkipStep("Command `hx` probably points to hx (hexdump alternative)".to_string()).into())
            }
        }
    }

    fn get(ctx: &ExecutionContext) -> Result<Self> {
        let hx = require("hx")?;

        // Check if `hx --help` mentions "helix". Helix does, hx (hexdump alternative) doesn't.
        let output = ctx.execute(&hx).always().arg("--help").output_checked()?;

        if String::from_utf8(output.stdout)?.contains("helix") {
            debug!("Detected `hx` as Helix");
            Ok(Self::Helix(hx))
        } else {
            debug!("Detected `hx` as hx (hexdump alternative)");
            Ok(Self::HxHexdump)
        }
    }
}

enum Helix {
    HelixEditor(PathBuf),
    HelixDB(PathBuf),
}

impl Helix {
    fn helix_editor(self) -> Result<PathBuf> {
        match self {
            Helix::HelixEditor(hx) => Ok(hx),
            Helix::HelixDB(_) => Err(SkipStep("Command `helix` probably points to Helix DB".to_string()).into()),
        }
    }

    fn helix_db(self) -> Result<PathBuf> {
        match self {
            Helix::HelixDB(hx) => Ok(hx),
            Helix::HelixEditor(_) => {
                Err(SkipStep("Command `helix` points to Helix Editor, not HelixDB".to_string()).into())
            }
        }
    }

    fn get(ctx: &ExecutionContext) -> Result<Self> {
        let helix = require("helix")?;

        let output = ctx.execute(&helix).always().arg("--help").output_checked()?;
        let stdout = String::from_utf8(output.stdout)?;

        // Helix Editor's `--help` mentions "--grammar", HelixDB's mentions "helix.toml".
        if stdout.contains("--grammar") {
            debug!("Detected `helix` as Helix Editor");
            Ok(Self::HelixEditor(helix))
        } else if stdout.contains("helix.toml") {
            debug!("Detected `helix` as Helix DB");
            Ok(Self::HelixDB(helix))
        } else {
            Err(SkipStep("Command `helix` is neither Helix Editor nor HelixDB".to_string()).into())
        }
    }
}

pub fn run_helix_grammars(ctx: &ExecutionContext) -> Result<()> {
    let helix = Hx::get(ctx)
        .and_then(|hx| hx.helix())
        .or_else(|_| Helix::get(ctx).and_then(|h| h.helix_editor()))
        .map_err(|_| SkipStep(t!("Neither `hx` nor `helix` command points to Helix Editor").to_string()))?;

    print_separator("Helix");

    ctx.execute(&helix)
        .args(["--grammar", "fetch"])
        .status_checked()
        .with_context(|| "Failed to download helix grammars!")?;

    ctx.execute(&helix)
        .args(["--grammar", "build"])
        .status_checked()
        .with_context(|| "Failed to build helix grammars!")?;

    Ok(())
}

pub fn run_helix_db(ctx: &ExecutionContext) -> Result<()> {
    let helix = Helix::get(ctx)?.helix_db()?;

    print_separator("HelixDB");

    ctx.execute(helix).arg("update").status_checked()
}

pub fn run_raco_update(ctx: &ExecutionContext) -> Result<()> {
    let raco = require("raco")?;

    print_separator(t!("Racket Package Manager"));

    ctx.execute(raco).args(["pkg", "update", "--all"]).status_checked()
}

pub fn bin_update(ctx: &ExecutionContext) -> Result<()> {
    let bin = require("bin")?;

    print_separator("Bin");
    ctx.execute(bin).arg("update").status_checked()
}

pub fn spicetify_upgrade(ctx: &ExecutionContext) -> Result<()> {
    // As of 04-07-2023 NixOS packages Spicetify with the `spicetify-cli` binary name
    let spicetify = require("spicetify").or(require("spicetify-cli"))?;

    print_separator("Spicetify");
    ctx.execute(spicetify).arg("upgrade").status_checked()
}

pub fn run_ghcli_extensions_upgrade(ctx: &ExecutionContext) -> Result<()> {
    let gh = require("gh")?;
    let result = ctx
        .execute(&gh)
        .always()
        .args(["extensions", "list"])
        .output_checked_utf8();
    if result.is_err() {
        debug!("GH result {:?}", result);
        return Err(SkipStep(t!("GH failed").to_string()).into());
    }

    print_separator(t!("GitHub CLI Extensions"));
    ctx.execute(&gh)
        .args(["extension", "upgrade", "--all"])
        .status_checked()
}

pub fn update_julia_packages(ctx: &ExecutionContext) -> Result<()> {
    let julia = require("julia")?;

    print_separator(t!("Julia Packages"));

    let mut executor = ctx.execute(julia);

    executor.arg(if ctx.config().julia_use_startup_file() {
        "--startup-file=yes"
    } else {
        "--startup-file=no"
    });

    executor.args(["-e", "using Pkg; Pkg.update()"]).status_checked()
}

pub fn run_helm_repo_update(ctx: &ExecutionContext) -> Result<()> {
    let helm = require("helm")?;

    print_separator("Helm");

    let no_repo = "no repositories found";
    let mut success = true;
    let mut exec = ctx.execute(helm);
    if let Err(e) = exec.arg("repo").arg("update").status_checked() {
        error!("Updating repositories failed: {e}");
        success = match exec.output_checked_utf8() {
            Ok(s) => s.stdout.contains(no_repo) || s.stderr.contains(no_repo),
            Err(e) => match e.downcast_ref::<TopgradeError>() {
                Some(TopgradeError::ProcessFailedWithOutput(_, _, stderr)) => stderr.contains(no_repo),
                _ => false,
            },
        };
    }

    if success { Ok(()) } else { Err(eyre!(StepFailed)) }
}

pub fn run_stew(ctx: &ExecutionContext) -> Result<()> {
    let stew = require("stew")?;

    print_separator("stew");
    ctx.execute(stew).args(["upgrade", "--all"]).status_checked()
}

pub fn run_bob(ctx: &ExecutionContext) -> Result<()> {
    let bob = require("bob")?;

    print_separator("Bob");

    ctx.execute(bob).args(["update", "--all"]).status_checked()
}

pub fn run_certbot(ctx: &ExecutionContext) -> Result<()> {
    let certbot = require("certbot")?;

    print_separator("Certbot");

    let sudo = ctx.require_sudo()?;
    sudo.execute(ctx, &certbot)?.arg("renew").status_checked()
}

/// Run `$ freshclam` to update ClamAV signature database
///
/// doc: https://docs.clamav.net/manual/Usage/SignatureManagement.html#freshclam
pub fn run_freshclam(ctx: &ExecutionContext) -> Result<()> {
    let freshclam = require("freshclam")?;
    print_separator(t!("Update ClamAV Database(FreshClam)"));

    let output = ctx.execute(&freshclam).output()?;
    let output = match output {
        ExecutorOutput::Wet(output) => output,
        ExecutorOutput::Dry => return Ok(()), // In a dry run, just exit after running without sudo
    };

    // Check if running without sudo was successful
    if output.status.success() {
        // Success, so write the output and exit
        std::io::stdout().lock().write_all(&output.stdout).unwrap();
        std::io::stderr().lock().write_all(&output.stderr).unwrap();
        return Ok(());
    }

    // Since running without sudo failed (hopefully due to permission errors), try running with sudo.
    debug!("`freshclam` (without sudo) resulted in error: {:?}", output);
    let sudo = ctx.require_sudo()?;

    match sudo.execute(ctx, freshclam)?.status_checked() {
        Ok(()) => Ok(()), // Success! The output of only the sudo'ed process is written.
        Err(err) => {
            // Error! We add onto the error the output of running without sudo for more information.
            Err(err.wrap_err(format!(
                "Running `freshclam` with sudo failed as well as running without sudo. Output without sudo: {output:?}"
            )))
        }
    }
}

/// Involve `pio upgrade` to update PlatformIO core.
pub fn run_platform_io(ctx: &ExecutionContext) -> Result<()> {
    // We use the full path because by default the binary is not in `PATH`:
    // https://github.com/topgrade-rs/topgrade/issues/754#issuecomment-2020537559
    #[cfg(unix)]
    fn bin_path() -> PathBuf {
        HOME_DIR.join(".platformio/penv/bin/pio")
    }
    #[cfg(windows)]
    fn bin_path() -> PathBuf {
        HOME_DIR.join(".platformio/penv/Scripts/pio.exe")
    }

    let bin_path = require(bin_path())?;

    print_separator("PlatformIO Core");

    ctx.execute(bin_path).arg("upgrade").status_checked()
}

/// Run `lensfun-update-data` to update lensfun database.
///
/// `sudo` will be used if `use_sudo` configuration entry is set to true.
pub fn run_lensfun_update_data(ctx: &ExecutionContext) -> Result<()> {
    const EXIT_CODE_WHEN_NO_UPDATE: i32 = 1;

    let lensfun_update_data = require("lensfun-update-data")?;

    print_separator("Lensfun's database update");

    if ctx.config().lensfun_use_sudo() {
        let sudo = ctx.require_sudo()?;
        sudo.execute(ctx, &lensfun_update_data)?
            // `lensfun-update-data` returns 1 when there is no update available
            // which should be considered success
            .status_checked_with_codes(&[EXIT_CODE_WHEN_NO_UPDATE])
    } else {
        ctx.execute(lensfun_update_data)
            .status_checked_with_codes(&[EXIT_CODE_WHEN_NO_UPDATE])
    }
}

pub fn run_poetry(ctx: &ExecutionContext) -> Result<()> {
    let poetry = require("poetry")?;

    #[cfg(unix)]
    fn get_interpreter(poetry: &PathBuf) -> Result<(PathBuf, Option<OsString>)> {
        // Parse the standard Unix shebang line: #!interpreter [optional-arg]
        // Spaces and tabs on either side of interpreter are ignored.

        use std::ffi::OsStr;
        use std::os::unix::ffi::OsStrExt;

        static SHEBANG_REGEX: LazyLock<Regex> =
            LazyLock::new(|| Regex::new(r"^#![ \t]*([^ \t\n]+)(?:[ \t]+([^\n]+)?)?").unwrap());

        let script = fs::read(poetry)?;
        if let Some(c) = SHEBANG_REGEX.captures(&script) {
            let interpreter = OsStr::from_bytes(&c[1]).into();
            let args = c.get(2).map(|args| OsStr::from_bytes(args.as_bytes()).into());
            return Ok((interpreter, args));
        }

        Err(eyre!("Could not find shebang"))
    }
    #[cfg(windows)]
    fn get_interpreter(poetry: &PathBuf) -> Result<(PathBuf, Option<OsString>)> {
        // Parse the shebang line from scripts using https://bitbucket.org/vinay.sajip/simple_launcher,
        // such as those created by pip. In contrast to Unix shebang lines, interpreter paths can
        // contain spaces, if they are double-quoted.

        use std::str;

        static SHEBANG_REGEX: LazyLock<Regex> =
            LazyLock::new(|| Regex::new(r#"^#![ \t]*(?:"([^"\n]+)"|([^" \t\n]+))(?:[ \t]+([^\n]+)?)?"#).unwrap());

        let data = fs::read(poetry)?;

        let pos = match data.windows(4).rposition(|b| b == b"PK\x05\x06") {
            Some(i) => i,
            None => bail!("Not a ZIP archive"),
        };

        let cdr_size = match data.get(pos + 12..pos + 16) {
            Some(b) => u32::from_le_bytes(b.try_into().unwrap()) as usize,
            None => bail!("Invalid CDR size"),
        };
        let cdr_offset = match data.get(pos + 16..pos + 20) {
            Some(b) => u32::from_le_bytes(b.try_into().unwrap()) as usize,
            None => bail!("Invalid CDR offset"),
        };
        if pos < cdr_size + cdr_offset {
            bail!("Invalid ZIP archive");
        }
        let arc_pos = pos - cdr_size - cdr_offset;
        match data[..arc_pos].windows(2).rposition(|b| b == b"#!") {
            Some(l) => {
                let line = &data[l..arc_pos - 1];
                if let Some(c) = SHEBANG_REGEX.captures(line) {
                    let interpreter = c.get(1).or_else(|| c.get(2)).unwrap();
                    // shebang line should be valid utf8
                    let interpreter = str::from_utf8(interpreter.as_bytes())?.into();
                    let args = match c.get(3) {
                        Some(args) => Some(str::from_utf8(args.as_bytes())?.into()),
                        None => None,
                    };
                    Ok((interpreter, args))
                } else {
                    Err(eyre!("Invalid shebang line"))
                }
            }
            None => Err(eyre!("Could not find shebang")),
        }
    }

    if ctx.config().poetry_force_self_update() {
        debug!("forcing poetry self update");
    } else {
        let (interp, interp_args) = get_interpreter(&poetry)
            .map_err(|e| SkipStep(format!("Could not find interpreter for {}: {}", poetry.display(), e)))?;
        debug!("poetry interpreter: {:?}, args: {:?}", interp, interp_args);

        let check_official_install_script = "import sys; from os import path; print('Y') if path.isfile(path.join(sys.prefix, 'poetry_env')) else print('N')";
        let mut command = ctx.execute(&interp).always();
        if let Some(args) = interp_args {
            command.arg(args);
        }
        let output = command
            .args(["-c", check_official_install_script])
            .output_checked_utf8()?;
        let stdout = output.stdout.trim();
        let official_install = match stdout {
            "N" => false,
            "Y" => true,
            _ => unreachable!("unexpected output from `check_official_install_script`"),
        };

        debug!("poetry is official install: {}", official_install);

        if !official_install {
            return Err(SkipStep("Not installed with the official script".to_string()).into());
        }
    }

    print_separator("Poetry");
    ctx.execute(&poetry).args(["self", "update"]).status_checked()
}

pub fn run_uv(ctx: &ExecutionContext) -> Result<()> {
    let uv_exec = require("uv")?;
    print_separator("uv");

    // Run `uv self update` if the `uv` binary is built with the `self-update`
    //    cargo feature enabled.
    //
    // To check if this feature is enabled or not, different version of `uv` need
    // different approaches, we need to know the version first and handle them
    // separately.
    let uv_version_output = ctx.execute(&uv_exec).always().arg("--version").output_checked_utf8()?;
    // Multiple possible output formats are possible according to uv source code
    //
    // https://github.com/astral-sh/uv/blob/6b7f60c1eaa840c2e933a0fb056ab46f99c991a5/crates/uv-cli/src/version.rs#L28-L42
    //
    // For example:
    //  "uv 0.5.11 (c4d0caaee 2024-12-19)\n"
    //  "uv 0.5.11+1 (xxxd0cee 2024-12-20)\n"
    //  "uv 0.6.14\n"

    let uv_version_output_stdout = uv_version_output.stdout;

    let version_str = {
        // Trim the starting "uv" and " " (whitespace)
        let start_trimmed = uv_version_output_stdout
            .trim_start_matches("uv")
            .trim_start_matches(' ');
        // Remove the tailing part " (c4d0caaee 2024-12-19)\n", if it's there
        match start_trimmed.find(' ') {
            None => start_trimmed.trim_end_matches('\n'), // Otherwise, just strip the newline
            Some(i) => &start_trimmed[..i],
        }

        // After trimming, it should be a string in 2 possible formats, both can be handled by `Version::parse()`
        //
        // 1. "0.5.11"
        // 2. "0.5.11+1"
    };
    let version =
        Version::parse(version_str).wrap_err_with(|| output_changed_message!("uv --version", "Invalid version"))?;

    if version < Version::new(0, 4, 25) {
        // For uv before version 0.4.25 (exclusive), the `self` sub-command only
        // exists under the `self-update` feature, we run `uv self --help` to check
        // the feature gate.
        let self_update_feature_enabled = ctx
            .execute(&uv_exec)
            .always()
            .args(["self", "--help"])
            .output_checked()
            .is_ok();

        if self_update_feature_enabled {
            ctx.execute(&uv_exec).args(["self", "update"]).status_checked()?;
        }
    } else {
        // After 0.4.25 (inclusive), running `uv self` succeeds regardless of the
        // feature gate, so the above approach won't work.
        //
        // We run `uv self update` directly, and ignore an error if it outputs:
        //
        // "error: uv was installed through an external package manager" [various continuations]
        //
        // or:
        //
        // "
        // error: Self-update is only available for uv binaries installed via the standalone installation scripts.
        //
        // If you installed uv with pip, brew, or another package manager, update uv with `pip install --upgrade`, `brew upgrade`, or similar.
        // "
        //
        // These two error messages can both occur, in different situations.

        const ERROR_MSGS: [&str; 2] = [
            "uv was installed through an external package manager",
            "Self-update is only available for uv binaries installed via the standalone installation scripts.",
        ];

        let output = ctx
            .execute(&uv_exec)
            .args(["self", "update"])
            // `output()` captures the output so that users won't see it for now.
            .output()
            .expect("this should be ok regardless of this child process's exit code");
        let output = match output {
            ExecutorOutput::Wet(wet) => wet,
            ExecutorOutput::Dry => return Err(DryRun().into()),
        };
        let stderr = std::str::from_utf8(&output.stderr).expect("output should be UTF-8 encoded");

        if ERROR_MSGS.iter().any(|&n| stderr.contains(n)) {
            // Feature `self-update` is disabled, nothing to do.
        } else {
            // Feature is enabled, flush the captured output so that users know we did the self-update.

            std::io::stdout().write_all(&output.stdout)?;
            std::io::stderr().write_all(&output.stderr)?;

            // And, if self update failed, fail the step as well.
            if !output.status.success() {
                bail!("uv self update failed");
            }
        }
    };

    // Update the installed tools
    ctx.execute(&uv_exec)
        .args(["tool", "upgrade", "--all"])
        .status_checked()?;

    // Update uv-managed Python installations from uv>=0.10.0
    if version >= Version::new(0, 10, 0) {
        ctx.execute(&uv_exec).args(["python", "upgrade"]).status_checked()?;
    }

    if ctx.config().cleanup() {
        // Prune cache
        ctx.execute(&uv_exec).args(["cache", "prune"]).status_checked()?;
    }

    Ok(())
}

/// Involve `zvm upgrade` to update ZVM
pub fn run_zvm(ctx: &ExecutionContext) -> Result<()> {
    let zvm = require("zvm")?;

    print_separator("ZVM");

    ctx.execute(zvm).arg("upgrade").status_checked()
}

pub fn run_bun(ctx: &ExecutionContext) -> Result<()> {
    let bun = require("bun")?;

    // From the official install script (both install.sh and install.ps1), Bun uses
    // the path set in this variable as the install root, and its defaults to
    // `$HOME/.bun`
    //
    // UNIX: https://bun.sh/install.sh
    // Windows: https://bun.sh/install.ps1
    let bun_install_env = env::var("BUN_INSTALL")
        .map(PathBuf::from)
        .unwrap_or(HOME_DIR.join(".bun"));

    // If `bun` is a descendant of `bun_install_env`, then Bun is installed
    // through the official script
    if bun.is_descendant_of(&bun_install_env) {
        print_separator("Bun");

        ctx.execute(bun).arg("upgrade").status_checked()
    } else {
        Err(SkipStep("Not installed through the official script".to_string()).into())
    }
}

pub fn run_zigup(ctx: &ExecutionContext) -> Result<()> {
    let zigup = require("zigup")?;
    let config = ctx.config();

    print_separator("zigup");

    let mut path_args = Vec::new();
    if let Some(path) = config.zigup_path_link() {
        path_args.push("--path-link".to_owned());
        path_args.push(shellexpand::tilde(path).into_owned());
    }
    if let Some(path) = config.zigup_install_dir() {
        path_args.push("--install-dir".to_owned());
        path_args.push(shellexpand::tilde(path).into_owned());
    }

    for zig_version in config.zigup_target_versions() {
        ctx.execute(&zigup)
            .args(&path_args)
            .arg("fetch")
            .arg(&zig_version)
            .status_checked()?;

        if config.zigup_cleanup() {
            ctx.execute(&zigup)
                .args(&path_args)
                .arg("keep")
                .arg(&zig_version)
                .status_checked()?;
        }
    }

    if config.zigup_cleanup() {
        ctx.execute(zigup).args(&path_args).arg("clean").status_checked()?;
    }

    Ok(())
}

pub fn run_jetbrains_toolbox(ctx: &ExecutionContext) -> Result<()> {
    let installation = find_jetbrains_toolbox();
    match installation {
        Err(FindError::NotFound) => {
            // Skip
            Err(SkipStep(format!("{}", t!("No JetBrains Toolbox installation found"))).into())
        }
        Err(FindError::UnsupportedOS(os)) => {
            // Skip
            Err(SkipStep(format!("{}", t!("Unsupported operating system {os}", os = os))).into())
        }
        Err(e) => {
            // Unexpected error
            println!(
                "{}",
                t!("jetbrains-toolbox-updater encountered an unexpected error during finding:")
            );
            println!("{e:?}");
            Err(StepFailed.into())
        }
        Ok(installation) => {
            print_separator("JetBrains Toolbox");

            if ctx.run_type().dry() {
                println!("Dry running jetbrains-toolbox-updater");
                return Ok(());
            }

            match update_jetbrains_toolbox(installation) {
                Err(e) => {
                    // Unexpected error
                    println!(
                        "{}",
                        t!("jetbrains-toolbox-updater encountered an unexpected error during updating:")
                    );
                    println!("{e:?}");
                    Err(StepFailed.into())
                }
                Ok(()) => Ok(()),
            }
        }
    }
}

fn run_jetbrains_ide_generic<const IS_JETBRAINS: bool>(ctx: &ExecutionContext, bin: PathBuf, name: &str) -> Result<()> {
    let prefix = if IS_JETBRAINS { "JetBrains " } else { "" };
    print_separator(format!("{prefix}{name} plugins"));

    // The `update` command is undocumented, but tested on all of the below.
    let output = ctx.execute(&bin).arg("update").output()?;
    let output = match output {
        ExecutorOutput::Dry => return Ok(()),
        ExecutorOutput::Wet(output) => output,
    };
    // Write the output which we swallowed in all cases
    std::io::stdout().lock().write_all(&output.stdout).unwrap();
    std::io::stderr().lock().write_all(&output.stderr).unwrap();

    let stdout = String::from_utf8(output.stdout.clone()).wrap_err("Expected valid UTF-8 output")?;

    // "Only one instance of RustRover can be run at a time."
    if stdout.contains("Only one instance of ") && stdout.contains(" can be run at a time.") {
        // It's always paired with status code 1
        let status_code = output
            .status
            .code()
            .ok_or_eyre("Failed to get status code; was killed with signal")?;
        if status_code != 1 {
            bail!(
                "Expected status code 1 ('Only one instance of <IDE> can be run at a time.'), but found status code {}. Output: {output:?}",
                status_code
            );
        }
        // Don't crash, but don't be silent either
        warn!("{name} is already running, can't update it now.");
        Err(SkipStep(format!("{name} is already running, can't update it now.")).into())
    } else if !output.status.success() {
        // Unknown failure
        Err(eyre!("Running `{bin:?} update` failed. Output: {output:?}"))
    } else {
        // Success. Output was already written above
        Ok(())
    }
}

fn run_jetbrains_ide(ctx: &ExecutionContext, bin: PathBuf, name: &str) -> Result<()> {
    run_jetbrains_ide_generic::<true>(ctx, bin, name)
}

pub fn run_android_studio(ctx: &ExecutionContext) -> Result<()> {
    // We don't use `run_jetbrains_ide` here because that would print "JetBrains Android Studio",
    //  which is incorrect as Android Studio is made by Google. Just "Android Studio" is fine.
    run_jetbrains_ide_generic::<false>(
        ctx,
        require_one([
            "studio",
            "android-studio",
            "android-studio-beta",
            "android-studio-canary",
        ])?,
        "Android Studio",
    )
}

pub fn run_jetbrains_aqua(ctx: &ExecutionContext) -> Result<()> {
    run_jetbrains_ide(ctx, Aqua::get(ctx)?.jetbrains_aqua()?, "Aqua")
}

pub fn run_jetbrains_clion(ctx: &ExecutionContext) -> Result<()> {
    run_jetbrains_ide(ctx, require_one(["clion", "clion-eap"])?, "CLion")
}

pub fn run_jetbrains_datagrip(ctx: &ExecutionContext) -> Result<()> {
    run_jetbrains_ide(ctx, require_one(["datagrip", "datagrip-eap"])?, "DataGrip")
}

pub fn run_jetbrains_dataspell(ctx: &ExecutionContext) -> Result<()> {
    run_jetbrains_ide(ctx, require_one(["dataspell", "dataspell-eap"])?, "DataSpell")
}

pub fn run_jetbrains_gateway(ctx: &ExecutionContext) -> Result<()> {
    run_jetbrains_ide(
        ctx,
        require_one(["gateway", "jetbrains-gateway", "jetbrains-gateway-eap"])?,
        "Gateway",
    )
}

pub fn run_jetbrains_goland(ctx: &ExecutionContext) -> Result<()> {
    run_jetbrains_ide(ctx, require_one(["goland", "goland-eap"])?, "Goland")
}

pub fn run_jetbrains_idea(ctx: &ExecutionContext) -> Result<()> {
    run_jetbrains_ide(
        ctx,
        require_one([
            "idea",
            "intellij-idea-ultimate-edition",
            "intellij-idea-ultimate",
            "intellij-idea-community-edition",
            "intellij-idea-community",
        ])?,
        "IntelliJ IDEA",
    )
}

pub fn run_jetbrains_mps(ctx: &ExecutionContext) -> Result<()> {
    run_jetbrains_ide(ctx, require_one(["mps", "jetbrains-mps"])?, "MPS")
}

pub fn run_jetbrains_phpstorm(ctx: &ExecutionContext) -> Result<()> {
    run_jetbrains_ide(ctx, require("phpstorm")?, "PhpStorm")
}

pub fn run_jetbrains_pycharm(ctx: &ExecutionContext) -> Result<()> {
    run_jetbrains_ide(
        ctx,
        require_one(["pycharm", "pycharm-professional", "pycharm-eap"])?,
        "PyCharm",
    )
}

pub fn run_jetbrains_rider(ctx: &ExecutionContext) -> Result<()> {
    run_jetbrains_ide(ctx, require_one(["rider", "rider-eap"])?, "Rider")
}

pub fn run_jetbrains_rubymine(ctx: &ExecutionContext) -> Result<()> {
    run_jetbrains_ide(
        ctx,
        require_one(["rubymine", "jetbrains-rubymine", "rubymine-eap"])?,
        "RubyMine",
    )
}

pub fn run_jetbrains_rustrover(ctx: &ExecutionContext) -> Result<()> {
    run_jetbrains_ide(ctx, require_one(["rustrover", "rustrover-eap"])?, "RustRover")
}

pub fn run_jetbrains_webstorm(ctx: &ExecutionContext) -> Result<()> {
    run_jetbrains_ide(ctx, require_one(["webstorm", "webstorm-eap"])?, "WebStorm")
}

pub fn run_yazi(ctx: &ExecutionContext) -> Result<()> {
    let ya = require("ya")?;

    print_separator("Yazi packages");

    ctx.execute(ya).args(["pkg", "upgrade"]).status_checked()
}

#[derive(Deserialize)]
struct TypstInfo {
    build: TypstBuild,
}

#[derive(Deserialize)]
struct TypstBuild {
    settings: TypstSettings,
}

#[derive(Deserialize)]
#[serde(rename_all = "kebab-case")]
struct TypstSettings {
    self_update: bool,
}

pub fn run_typst(ctx: &ExecutionContext) -> Result<()> {
    let typst = require("typst")?;

    let raw_info = ctx
        .execute(&typst)
        .always()
        .args(["info", "-f", "json"])
        .output_checked_utf8()?
        .stdout;
    let info: TypstInfo = serde_json::from_str(&raw_info).wrap_err_with(|| {
        output_changed_message!(
            "typst info -f json",
            "json output invalid or does not contain .build.settings.self-update"
        )
    })?;
    if !info.build.settings.self_update {
        return Err(SkipStep("This build of typst does not have self-update enabled".to_string()).into());
    }

    print_separator("Typst");

    ctx.execute(typst).args(["update"]).status_checked()
}

pub fn run_claude_code(ctx: &ExecutionContext) -> Result<()> {
    #[derive(Deserialize)]
    #[serde(rename_all = "camelCase")]
    struct ClaudePlugin {
        id: String,
        scope: String,
        #[serde(default)]
        project_path: Option<PathBuf>,
    }

    let claude = require("claude")?;

    print_separator("Claude Code");

    ctx.execute(&claude).arg("update").status_checked()?;

    ctx.execute(&claude)
        .args(["plugin", "marketplace", "update"])
        .status_checked()?;

    let output = ctx
        .execute(&claude)
        .args(["plugin", "list", "--json"])
        .output_checked_utf8()?;
    let plugins: Vec<ClaudePlugin> = serde_json::from_str(&output.stdout).wrap_err_with(|| {
        output_changed_message!(
            "claude plugin list --json",
            "json output is invalid or does not match expected structure"
        )
    })?;

    let mut success = true;
    for plugin in &plugins {
        let mut cmd = ctx.execute(&claude);
        cmd.args(["plugin", "update", &plugin.id, "--scope", &plugin.scope]);
        if let Some(path) = &plugin.project_path {
            cmd.current_dir(path);
        }
        if let Err(e) = cmd.status_checked() {
            error!("Updating plugin {} failed: {e}", plugin.id);
            success = false;
        }
    }

    if success { Ok(()) } else { Err(eyre!(StepFailed)) }
}

pub fn run_falconf(ctx: &ExecutionContext) -> Result<()> {
    let falconf = require("falconf")?;

    print_separator("falconf sync");

    ctx.execute(falconf).arg("sync").status_checked()
}

pub fn run_colima(ctx: &ExecutionContext) -> Result<()> {
    let colima = require("colima")?;

    print_separator("Colima");

    ctx.execute(colima).arg("update").status_checked()
}

pub fn run_skills(ctx: &ExecutionContext) -> Result<()> {
    let npx = require("npx")?;

    let skill_lock = HOME_DIR.join(".agents").join(".skill-lock.json");
    if !skill_lock.exists() {
        return Err(SkipStep("No ~/.agents/.skill-lock.json found".to_string()).into());
    }

    print_separator("Skills");

    let mut command = ctx.execute(npx);

    if ctx.config().yes(Step::Skills) {
        command.arg("--yes");
    }

    command.args(["skills", "update", "--global"]);

    command.status_checked()
}

fn ollama_serve(ctx: &ExecutionContext, ollama: &Path) -> Result<ExecutorChild> {
    ctx.execute(ollama)
        .arg("serve")
        .stdin(std::process::Stdio::null())
        .spawn()
        .context("Failed to start Ollama server")
}

fn ollama_manifests_path() -> PathBuf {
    env::var_os("OLLAMA_MODELS")
        .map(PathBuf::from)
        .unwrap_or_else(|| HOME_DIR.join(".ollama/models"))
        .join("manifests/registry.ollama.ai")
}

struct OllamaModel {
    name: String,
    manifest_path: PathBuf,
}

fn ollama_list_models() -> impl Iterator<Item = OllamaModel> {
    let manifests = ollama_manifests_path();

    WalkDir::new(&manifests)
        .min_depth(3)
        .max_depth(3)
        .into_iter()
        .filter_map(move |entry| {
            let entry = entry.ok()?;
            if !entry.file_type().is_file() {
                return None;
            }

            let path = entry.path();
            let tag = path.file_name()?.to_string_lossy();
            let name = path.parent()?.file_name()?.to_string_lossy();
            let namespace = path.parent()?.parent()?.file_name()?.to_string_lossy();

            Some(OllamaModel {
                name: if namespace == "library" {
                    format!("{name}:{tag}")
                } else {
                    format!("{namespace}/{name}:{tag}")
                },
                manifest_path: path.to_path_buf(),
            })
        })
}

#[derive(Deserialize)]
struct OllamaManifest {
    layers: Vec<OllamaLayer>,
}

#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
struct OllamaLayer {
    media_type: String,
    #[serde(default)]
    from: Option<String>,
}

// Locally created model manifests have a `from` field on their model layers
fn is_local_ollama_model(manifest_path: &Path) -> bool {
    let Ok(content) = fs::read_to_string(manifest_path) else {
        return false;
    };
    let Ok(manifest) = serde_json::from_str::<OllamaManifest>(&content) else {
        return false;
    };
    manifest
        .layers
        .iter()
        .any(|l| l.media_type == "application/vnd.ollama.image.model" && l.from.is_some())
}

pub fn run_ollama_pull(ctx: &ExecutionContext) -> Result<()> {
    let ollama = require("ollama")?;

    let mut remote_models = ollama_list_models()
        .filter(|m| !is_local_ollama_model(&m.manifest_path))
        .peekable();
    if remote_models.peek().is_none() {
        return Err(SkipStep("No Ollama models to pull".to_string()).into());
    }

    print_separator("Ollama");

    let mut server: Option<ExecutorChild> = None;
    if let ExecutorOutput::Wet(out) = ctx.execute(&ollama).always().args(["list"]).output()?
        && String::from_utf8_lossy(&out.stderr).contains("could not connect")
        && !ctx.run_type().dry()
    {
        debug!("Ollama server not running, starting temporary server");
        server = Some(ollama_serve(ctx, &ollama)?);
        // wait max 2 seconds for server to start
        for _ in 0..10 {
            std::thread::sleep(std::time::Duration::from_millis(200));
            if ctx.execute(&ollama).args(["list"]).status_checked().is_ok() {
                break;
            }
        }
    }

    let mut pull_result = Ok(());
    for model in remote_models {
        if let Err(e) = ctx.execute(&ollama).args(["pull", &model.name]).status_checked() {
            pull_result = Err(e);
            break;
        }
    }

    // kill temporary Ollama server - must run, don't add early returns before this
    if let Some(ExecutorChild::Wet(mut child)) = server {
        let _ = child.kill();
        let _ = child.wait();
    }

    pull_result
}
