#!/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() {
  # Variables
  local repo
  repo=https://git.mylloon.fr/Anri/confOS/raw/branch/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 eza fzf glu man-pages-fr uwufetch mdcat python-pip opam \
    cpanminus unison timidity++ rebuild-detector difftastic sdl2_ttf rustup \
    libsamplerate rsync doxygen otf-fira-sans ttf-fira-code texlive-binextra \
    otf-fira-mono mingw-w64-gcc otf-font-awesome soundfont-fluid fluidsynth \
    pulseaudio-alsa texlive-latexextra texlive-langfrench texlive-luatex \
    noto-fonts jdk-openjdk


  # === Rustup ==
  # Init rustup
  rustup default stable
  # fish_add_path "$HOME/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/bin"
  # 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

  # === Paru ==
  git clone https://aur.archlinux.org/paru.git
  cd paru || exit
  makepkg -si --noconfirm
  # Remove folder
  cd ..
  rm -rf paru
  paru --gendb
  # Clean files used for compilation
  sudo sed -i "s/#CleanAfter/CleanAfter/g" /etc/paru.conf

  # === AUR packages ==
  paru -S --noconfirm \
    otf-font-awesome topgrade-bin cram

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

  # === Set-up systemd
  mkdir -p 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 -p /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 "$HOME"/.config/fish/functions/
  mkdir -p "$HOME"/.ssh
  # Custom config.fish
  wget -q ${repo}/.config/fish/config_wsl.fish -O "$HOME"/.config/fish/config.fish
  # Fish theme
  fish -c "fish_config theme choose 'Base16 Eighties' && yes | fish_config theme save"
  fish -c "set fish_color_comment 5c6773" # custom comment color
  # Fish prompt
  rm "$HOME"/.config/fish/functions/fish_prompt.fish 2> /dev/null
  wget -q ${repo}/.config/fish/functions/fish_prompt.fish -P "$HOME"/.config/fish/functions/
  # EZA colors
  fish -c "set -Ux EXA_COLORS 'di=1;36:da=35'"
  # Add abbreviations
  wget -q ${repo}/.config/fish/conf.d/abbr.fish -O "$HOME"/.config/fish/conf.d/abbr.fish
  curl -s ${repo}/.config/fish/conf.d/abbr_wsl.fish >> "$HOME"/.config/fish/conf.d/abbr.fish
  # Add aliases
  wget -q ${repo}/.config/fish/conf.d/alias.fish -O "$HOME"/.config/fish/conf.d/alias.fish

  # === Default editor ==
  fish -c "set -Ux EDITOR nano"

  # === Micro configuration ==
  mkdir -p "$HOME"/.config/micro
  wget -q --show-progress ${repo}/.config/micro/settings.json -O "$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 -Uax 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

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

  # === Git ==
  wget -q ${repo}/dotfiles/.gitconfig -O "$HOME"/.gitconfig

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

  # === 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 pprint sexplib
  wget -q ${repo}/dotfiles/.ocamlformat -O "$HOME"/.ocamlformat
  # Add Opam packages from OCaml
  mkdir -p "$HOME"/.opam/default/bin
  fish -c "fish_add_path $HOME/.opam/default/bin | true"
  # Fix dlllwt_unix_stubs.so shared object file
  fish -c "set -Ux CAML_LD_LIBRARY_PATH $(opam var stublibs)"

  # === Clang ==
  wget -q ${repo}/dotfiles/.clang-format -O "$HOME"/.clang-format

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

  # === Unison ==
  mkdir -p "$HOME"/.unison
  wget -q ${repo}/.unison/default.prf -O "$HOME"/.unison/default.prf

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

  # === Emacs ==
  # mkdir -p "$HOME"/.emacs.d
  # wget -q ${repo}/.emacs.d/init.el -O "$HOME"/.emacs.d/init.el

  # === Bash VSCode fix ==
  curl -s ${repo}/dotfiles/.bashrc >> "$HOME"/.bashrc

  # === MIDI files ==
  {
    echo "soundfont /usr/share/soundfonts/FluidR3_GS.sf2"
    echo "soundfont /usr/share/soundfonts/FluidR3_GM.sf2"
  } | sudo tee -a /etc/timidity/timidity.cfg > /dev/null
  sudo mkdir -p /usr/share/sounds/sf2
  sudo ln -s /usr/share/soundfonts/*.sf2 /usr/share/sounds/sf2/

  # === Update NPM ==
  sudo npm i -g npm@latest

  # === Clear useless packages
  pacman -Qqtd | sudo pacman --noconfirm -Rsn subsystemctl - 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