#!/usr/bin/env bash

# ─< Check if the given command exists silently >─────────────────────────────────────────
command_exists() {
  command -v "$@" >/dev/null 2>&1
}

# WHY:
# This import will give you the following variables:
# _sudo="sudo -E" <- only if non root user
# distro = <distro name, like 'arch', 'debian', 'fedora'..>
# arch = bool
# fedora = bool
# opensuse =  bool....
# You can then use it for, `if $arch; then`
# Also this gives you the _install command, which installs a package pased on the packagemanager/distro used.
# CAUTION:
# This only wokrs for generic package names, like neovim, or vim, or tmux etc..
# not every package packagemanager has the same packagenames for their packages..
getImports() {
  local url="https://git.k4li.de/scripts/imports/raw/branch/main/distros.sh"
  local import="$(mktemp)"
  if command_exists curl; then
    curl -fsSL $url -o $import
  elif command_exists wget; then
    wget -o $import $url
  else
    echo "curl/wget is required, but missing.."
    exit 69
  fi

  source "$import"
  sleep 0.1
  rm -f "$import"
}

installNeovide() {
  if ! command_exists cargo; then
    curl --proto '=https' --tlsv1.2 -sSf "https://sh.rustup.rs" | sh
    "$HOME/.cargo/bin/cargo" install --git https://github.com/neovide/neovide
  else
    cargo install --git https://github.com/neovide/neovide
  fi

  if [ -e "$HOME/.cargo/bin/neovide" ]; then
    $_sudo ln -rs "$HOME/.cargo/bin/neovide" /bin/neovide
  fi
}

i_arch() {
  deps="base-devel fontconfig freetype2 libglvnd sndio cmake git gtk3 python sdl2 vulkan-intel libxkbcommon-x11"
  for dep in $deps; do
    if ! command_exists $dep; then
      _install "$dep" || echo_error "Couldn't install $dep"
    fi
  done
}

i_debian() {
  deps="curl gnupg ca-certificates git gcc-multilib g++-multilib cmake libssl-dev pkg-config libfreetype6-dev libasound2-dev libexpat1-dev libxcb-composite0-dev libbz2-dev libsndio-dev freeglut3-dev libxmu-dev libxi-dev libfontconfig1-dev libxcursor-dev"
  for dep in $deps; do
    if ! command_exists $dep; then
      silentexec $_sudo apt-get install --assume-yes "$dep" || echo_error "Couldn't install $dep"
    fi
  done
}

i_fedora() {
  deps="fontconfig-devel freetype-devel libX11-xcb libX11-devel libstdc++-static libstdc++-devel dnf-plugins-core"
  for dep in $deps; do
    if ! command_exists $dep; then
      _install "$dep" || echo_error "Couldn't install $dep"
    fi
  done
  $_sudo dnf groupinstall "Development Tools" "Development Libraries"
}

_setup() {
  case "$distro" in
  arch) i_arch ;;
  fedora) i_fedora ;;
  debian | ubuntu) i_debian ;;
  *)
    echo_error "$distro is not supported by this script"
    return 69
    ;;
  esac
}

if getImports; then
  # ─< package variable >───────────────────────────────────────────────────────────────────
  unset PACKAGE

  # ─< argument list variables >────────────────────────────────────────────────────────────
  unset silent

  sleep 0.1

  PACKAGE=hyprpolkit-agent
  if command_exists "$PACKAGE"; then
    echo_warning "$PACKAGE is already installed!"
    echo_warning "Exiting now!"
    exit 69
  fi

  # ─< parse arguments and get variable contents >──────────────────────────────────────────
  for arg in "$@"; do
    case "$arg" in
    --silent | -s)
      export silent=true
      ;;
    esac
  done
  _setup
  installNeovide
fi