#!/usr/bin/env bash

set -o errexit  # crash the script when a command crash
set -o pipefail # same as above for piped command
set -o nounset  # crash when a variable doesnt exist

# TRACE=1 for debug
if [[ "${TRACE-0}" == "1" ]]; then
    set -o xtrace
fi

cd "$(dirname "$0")" # change script directory

main() {
    # === Init pacman ==
    sudo pacman-key --init
    sudo pacman-key --populate
    sudo pacman -Sy --noconfirm archlinux-keyring

    # === Update Arch mirrors ==
    sudo pacman -S --noconfirm pacman-contrib
    curl -s "https://archlinux.org/mirrorlist/?country=FR&country=GB&protocol=https&use_mirror_status=on" | \
    sed -e "s/^#Server/Server/" -e "/^#/d" | sudo bash -c "rankmirrors -n 7 - > /etc/pacman.d/mirrorlist"

    # === Update Arch ==
    sudo pacman -Syyuu --noconfirm

    # === Install packages ==
    sudo pacman -S --noconfirm git wget zip openssh bat base-devel make \
                          python-pygments micro git-lfs npm sdl2_image nodejs \
                          fish autoconf valgrind automake python-virtualenv gdb \
                          tk sdl2_mixer exa texlive-most fzf glu man-pages-fr \
                          uwufetch python-pip opam cpanminus unison \
                          rebuild-detector git-delta sdl2_ttf rustup

    # === Rustup ==
    # Init rustup
    rustup default stable
    # Dev tools
    rustup component add rust-analysis rls

    # === Colors package manager ==
    sudo sed -i "s/#Color/Color/g" /etc/pacman.conf
    sudo sed -i "s/#ParallelDownloads = 5/ParallelDownloads = 3/g" /etc/pacman.conf

    # === Remove SU password ==
    echo -e "# Disable password for specific user\nanri ALL=(ALL) NOPASSWD:ALL" | sudo tee -a /etc/sudoers > /dev/null

    # === Yay ==
    git clone https://aur.archlinux.org/yay.git
    cd yay || exit
    makepkg -si --noconfirm
    # Remove folder
    cd ..
    rm -rf yay
    # Enable *-git package updates
    yay -Y --devel --save

    # === AUR packages ==
    yay -S --noconfirm spim-svn cal8tor

    # === Rust ==
    # Add Cargo packages from Rust
    mkdir -p "$HOME"/.cargo/bin
    fish -c "fish_add_path $HOME/.cargo/bin"

    # === Set-up systemd
    mkdir subsystemctl
    cd subsystemctl || exit
    curl -so PKGBUILD https://raw.githubusercontent.com/sorah/arch.sorah.jp/master/aur-sorah/PKGBUILDs/subsystemctl/PKGBUILD
    makepkg -si --noconfirm
    cd ..
    rm -rf subsystemctl
    sudo subsystemctl start

    # === Locales ==
    sudo sed -i "s/#fr_FR.UTF-8 UTF-8/fr_FR.UTF8 UTF-8/g" /etc/locale.gen
    sudo locale-gen
    subsystemctl exec sudo localectl set-locale fr_FR.UTF-8

    # === Shared folders ==
    sudo mkdir /mnt/y

    # === Fish ==
    # Remove motd
    fish -c "set -U fish_greeting"
    # Reversed search
    curl -sL https://git.io/fisher | fish -c "source && fisher install jorgebucaran/fisher"
    fish -c "fisher install jethrokuan/fzf"
    fish -c "fisher install jorgebucaran/autopair.fish"
    # SSH
    wget -q https://gitlab.com/kyb/fish_ssh_agent/raw/master/functions/fish_ssh_agent.fish -P "$HOME"/.config/fish/functions/
    mkdir "$HOME"/.ssh
    # Custom config.fish
    wget -q https://git.mylloon.fr/Anri/confOS/raw/branch/main/.config/fish/config_wsl.fish -O "$HOME"/.config/fish/config.fish
    # Custom prompt shell (based on https://github.com/fish-shell/fish-shell/blob/master/share/tools/web_config/themes/Base16%20Eighties.theme)
    # Modifications: Changed comment color
    wget -q https://git.mylloon.fr/Anri/confOS/raw/branch/main/.config/fish/functions/fish_prompt.fish -P "$HOME"/.config/fish/functions/
    fish -c "set -U fish_color_normal normal"
    fish -c "set -U fish_color_command 99cc99"
    fish -c "set -U fish_color_quote ffcc66"
    fish -c "set -U fish_color_redirection d3d0c8"
    fish -c "set -U fish_color_end cc99cc"
    fish -c "set -U fish_color_error f2777a"
    fish -c "set -U fish_color_param d3d0c8"
    fish -c "set -U fish_color_comment 5c6773"
    fish -c "set -U fish_color_match 6699cc"
    fish -c "set -U fish_color_selection white --bold --background=brblack"
    fish -c "set -U fish_color_search_match bryellow --background=brblack"
    fish -c "set -U fish_color_history_current --bold"
    fish -c "set -U fish_color_operator 6699cc"
    fish -c "set -U fish_color_escape 66cccc"
    fish -c "set -U fish_color_cwd green"
    fish -c "set -U fish_color_cwd_root red"
    fish -c "set -U fish_color_valid_path --underline"
    fish -c "set -U fish_color_autosuggestion 747369"
    fish -c "set -U fish_color_user brgreen"
    fish -c "set -U fish_color_host normal"
    fish -c "set -U fish_color_cancel -r"
    fish -c "set -U fish_pager_color_completion normal"
    fish -c "set -U fish_pager_color_description B3A06D yellow"
    fish -c "set -U fish_pager_color_prefix normal --bold --underline"
    fish -c "set -U fish_pager_color_progress brwhite --background=cyan"
    fish -c "set -U fish_pager_color_selected_background --background=brblack"
    fish -c "set -U fish_color_option d3d0c8"
    fish -c "set -U fish_color_keyword 99cc99"
    # EXA colors
    fish -c "set -Ux EXA_COLORS 'di=1;36:da=35'"
    # Add aliases
    wget -q https://git.mylloon.fr/Anri/confOS/raw/branch/main/.config/fish/conf.d/abbr_wsl.fish -O "$HOME"/.config/fish/conf.d/abbr.fish

    # === Micro configuration ==
    fish -c "set -Ux EDITOR micro"
    mkdir "$HOME"/.config/micro
    wget -q --show-progress https://git.mylloon.fr/Anri/confOS/raw/branch/main/.config/micro/settings.json -O "$HOME"/.config/micro/settings.json
    micro -plugin install detectindent

    # === GL4D ==
    # Download, build and installation
    git clone https://github.com/noalien/GL4Dummies.git
    cd GL4Dummies || exit
    make -f Makefile.autotools
    ./configure
    make
    sudo make install
    cd ..
    rm -rf GL4Dummies
    # Fix for shared libraries (https://stackoverflow.com/a/9395355)
    sudo ldconfig
    # Add to path
    fish -c "set -Ua LD_LIBRARY_PATH /usr/local/lib"

    # === tldr ==
    cargo install tealdeer
    fish -c "tldr --update"
    # Fish completion
    local url_tldr
    url_tldr=$(curl -s https://api.github.com/repos/dbrgn/tealdeer/releases/latest \
        | grep 'browser_download_url": ".*/completions_fish"' \
        | cut --delimiter=":" --field=2,3 \
        | tr -d \" )
    wget -q --show-progress "${url_tldr:1}" -O completions_fish
    mv completions_fish ~/.config/fish/completions/tldr.fish

    # === Java ==
    curl -s "https://get.sdkman.io" | bash
    # Temporary disable nounset for SDK
    set +o nounset
    # shellcheck source=/dev/null
    source "$HOME/.sdkman/bin/sdkman-init.sh"
    if [ -x "$HOME"/.config/fish ] ; then
        if [ ! -f "$HOME"/.config/fish/functions/fisher.fish ] ; then # install fisher if not already installed
            curl -sL https://git.io/fisher | fish -c "source && fisher install jorgebucaran/fisher"
        fi
        fish -c "fisher install reitzig/sdkman-for-fish"
    fi
    sdk install java 17.0.6-tem # https://whichjdk.com/#adoptium-eclipse-temurin
    # Renable nounset
    set -o nounset

    # === Manual color ==
    fish -c "set -Ux MANPAGER \"sh -c 'col -bx | bat -l man -p'\""

    # === Git ==
    wget -q https://git.mylloon.fr/Anri/confOS/raw/branch/main/dotfiles/.gitconfig -O "$HOME"/.gitconfig

    # === Python ==
    # Add PIP packages from Python
    mkdir "$HOME"/.local/bin
    fish -c "fish_add_path $HOME/.local/bin"

    # === OCaml ==
    # Init Opam and install stuff
    echo | opam init
    fish -c "yes | opam init"
    opam install -y utop ocaml-lsp-server ocamlformat ocamlformat-rpc menhir
    wget -q https://git.mylloon.fr/Anri/confOS/raw/branch/main/dotfiles/.ocamlformat -O "$HOME"/.ocamlformat
    # Add Opam packages from OCaml
    mkdir -p "$HOME"/.opam/default/bin
    fish -c "fish_add_path $HOME/.opam/default/bin"
    # Fix dlllwt_unix_stubs.so shared object file
    fish -c "set -Ux CAML_LD_LIBRARY_PATH $(opam var stublibs)"

    # === Clang ==
    wget -q https://git.mylloon.fr/Anri/confOS/raw/branch/main/dotfiles/.clang-format -O "$HOME"/.clang-format

    # === LaTeX ==
    # Pour latexindent
    sudo cpanm YAML::Tiny File::HomeDir

    # === Valgrind ==
    fish -c "set -Ux DEBUGINFOD_URLS https://debuginfod.archlinux.org"

    # === Unison ==
    mkdir "$HOME"/.unison
    wget -q https://git.mylloon.fr/Anri/confOS/raw/branch/main/.unison/default.prf -O "$HOME"/.unison/default.prf

    # === Perl ==
    # Add perl packages to path
    fish -c "fish_add_path /usr/bin/vendor_perl"

    # === Clear useless packages
    pacman -Qqtd | sudo pacman --noconfirm -Rsn - 2> /dev/null || true

    echo -e "\nInstallation terminée !\nIl faut redémarrer WSL (dans Powershell = wsl --shutdown)."
    echo -e "---\nPense bien à paramétrer ton terminal, exemple avec Windows Terminal :"
    echo    "- Ligne de commande = wsl.exe -d Arch fish"
    echo    "- Profils par défaut => Apparence :"
    echo    "   - Jeu de couleur = One Half Dark"
    echo    "   - Type de police = Caskaydia Cove Nerd Font Complete Mono Windows Compatible"
    echo    "                      (à télécharger ici : https://www.nerdfonts.com/font-downloads)"
}

if grep "WSL2" /proc/version > /dev/null;
then
    main "$@"
else
    echo "Ce script ne fonctionne que sur ArchWSL." >&2
fi