# Set manually
set -gx OS "fedora"		    # Choose OS
# set -gx HELPERS "snap flatpak"    # Specify helper package managers, if any
set -gx LANG_HELPERS "cargo"	    # List of language package managers

# Auto-detect OS if not manually set
if not set -q OS
    if test -f /etc/os-release
        set -l distro (grep "^ID=" /etc/os-release | cut -d= -f2 | tr -d '"')
        set -gx OS $distro
    else if test (uname) = "FreeBSD"
        set -gx OS "freebsd"
    else if test (uname) = "OpenBSD"
        set -gx OS "openbsd"
    else if test (uname) = "NetBSD"
        set -gx OS "netbsd"
    else if test (uname) = "DragonFly"
        set -gx OS "dragonfly"
    else if test (uname) = "Redox"
        set -gx OS "redox"
    end
end

# Base OS package manager
switch $OS
    case debian ubuntu linuxmint pop elementary neon zorin kali mx antix
        alias inst="sudo apt-get install -y"
        set updt "sudo apt-get update && sudo apt-get upgrade -y"

    case arch manjaro endeavour arcolinux garuda parabola artix
        alias inst="sudo pacman -S"
        set updt "sudo pacman -Syuu --noconfirm"

    case fedora rhel centos rocky almalinux oracle
        alias inst="sudo dnf install -y"
        set updt "sudo dnf upgrade -y"

    case opensuse tumbleweed leap suse sles
        alias inst="sudo zypper install -y"
        set updt "sudo zypper refresh && sudo zypper update -y"

    case void
        alias inst="sudo xbps-install -Sy"
        set updt "sudo xbps-install -Su"

    case alpine
        alias inst="sudo apk add"
        set updt "sudo apk update && sudo apk upgrade"

    case gentoo funtoo
        alias inst="sudo emerge -av"
        set updt "sudo emerge --sync && sudo emerge -avuDN @world"

    case slackware
        alias inst="sudo slackpkg install"
        set updt "sudo slackpkg update && sudo slackpkg upgrade-all"

    case nixos
        alias inst="nix-env -iA"
        set updt "sudo nix-channel --update && sudo nixos-rebuild switch"

    case guix
        alias inst="guix install"
        set updt "guix pull && guix upgrade"

    # BSD Family
    case freebsd dragonfly
        alias inst="sudo pkg install -y"
        set updt "sudo pkg update && sudo pkg upgrade -y"

    case openbsd
        alias inst="doas pkg_add"
        set updt "doas pkg_add -u"

    case netbsd
        alias inst="sudo pkgin install"
        set updt "sudo pkgin update && sudo pkgin upgrade"

    # Redox OS
    case redox
        alias inst="pkg install"
        set updt "pkg upgrade"

    # Unknown fallback
    case '*'
        alias inst="echo 'Unknown OS: please set aliases manually'"
        set updt "echo 'Unknown OS: no update command'"
end

# Helpers (extra package managers)
# Multiple helpers allowed: e.g. set -gx HELPERS "snap flatpak yay"
if set -q HELPERS
    for helper in $HELPERS
        switch $helper
            # Universal
            case snap
                set updt "$updt && sudo snap refresh"
            case flatpak
                set updt "$updt && flatpak update -y"
            case appimage
                set updt "$updt && echo 'Update AppImages manually or with appimageupdatetool'"
            case brew
                set updt "$updt && brew update && brew upgrade"

            # Arch AUR Helpers
            case yay
                set updt "$updt && yay -Syu --noconfirm"
            case paru
                set updt "$updt && paru -Syu --noconfirm"
            case trizen
                set updt "$updt && trizen -Syu --noconfirm"
            case pacaur
                set updt "$updt && pacaur -Syu --noconfirm"

            # Fedora / RHEL Helpers
            case rpm-ostree
                set updt "$updt && sudo rpm-ostree upgrade"
            case copr
                set updt "$updt && echo 'COPR repos update automatically with dnf upgrade'"

            # openSUSE Helpers
            case oneclick
                set updt "$updt && echo 'Use YaST or zypper for OneClick updates'"
            case osc
                set updt "$updt && osc up"

            # Slackware Helpers
            case slackpkg+
                set updt "$updt && slackpkg update gpg && slackpkg update && slackpkg upgrade-all"

            # Portable/Other
            case pkgsrc
                set updt "$updt && sudo pkgin update && sudo pkgin upgrade"
            case spack
                set updt "$updt && spack update && spack upgrade"
        end
    end
end

# Language / toolchain managers
# Multiple allowed: e.g. set -gx LANG_HELPERS "cargo npm pip gem"

if set -q LANG_HELPERS
    for lang in $LANG_HELPERS
        switch $lang
            # Rust
            case cargo
                set updt "$updt && rustup update"

            # Node.js
            case npm
                set updt "$updt && npm update -g && npm install -g npm"

            case yarn
                set updt "$updt && yarn global upgrade"

            case pnpm
                set updt "$updt && pnpm add -g npm && pnpm update -g"

            # Python
            case pip
                set updt "$updt && pip install --upgrade pip setuptools wheel && pip list --outdated --format=freeze | cut -d'=' -f1 | xargs -n1 pip install -U"

            case pipx
                set updt "$updt && pipx upgrade-all"

            # Ruby
            case gem
                set updt "$updt && gem update --system && gem update"

            case bundler
                set updt "$updt && bundle update"

            # Go
            case go
                set updt "$updt && go install all"

            # PHP
            case composer
                set updt "$updt && composer self-update && composer global update"

            # Java
            case sdkman
                set updt "$updt && sdk update && sdk upgrade"

            # Haskell
            case cabal
                set updt "$updt && cabal update && cabal install --lib --upgrade-dependencies"

            case stack
                set updt "$updt && stack upgrade && stack update"

            # Elixir / Erlang
            case mix
                set updt "$updt && mix local.hex --force && mix local.rebar --force && mix deps.update --all"

            case rebar
                set updt "$updt && rebar3 update"

            # Perl
            case cpan
                set updt "$updt && cpan -u"

            case cpanm
                set updt "$updt && cpan-outdated -p | xargs cpanm"

            # .NET
            case dotnet
                set updt "$updt && dotnet tool update --global --all"

            # Julia
            case julia
                set updt "$updt && julia -e 'using Pkg; Pkg.update()'"

            # R
            case cran
                set updt "$updt && R -q -e 'update.packages(ask=FALSE, repos=\"https://cloud.r-project.org\")'"

            # Lua
            case luarocks
                set updt "$updt && luarocks install --server=https://luarocks.org/dev"

            # Scala
            case coursier
                set updt "$updt && cs update"

            # Dart / Flutter
            case dart
                set updt "$updt && dart pub upgrade"

            case flutter
                set updt "$updt && flutter upgrade"

            # OCaml
            case opam
                set updt "$updt && opam update && opam upgrade -y"

            # Common Lisp
            case quicklisp
                set updt "$updt && sbcl --eval '(ql:update-all-dists)' --quit"

            # Nim
            case nimble
                set updt "$updt && nimble refresh && nimble update"

            # Crystal
            case shards
                set updt "$updt && shards update"
        end
    end
end


# Final alias
alias updt="$updt"
alias systemctl="sudo systemctl"