#!/usr/bin/env bash

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

# ─< package variable >───────────────────────────────────────────────────────────────────
unset PACKAGE

# ─< argument list variables >────────────────────────────────────────────────────────────
silent=false

sleep 0.1

PACKAGE=hyprgraphics
if command_exists "$PACKAGE"; then
  echo "$PACKAGE is already installed!"
  echo "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

# 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 "$import"
  sleep 0.2
  rm "$import"
}

checkComp() {
  if ! $arch && ! $debian; then
    echo_error "Your distro $distro is not compatible with this script"
    return 69
  fi
}

getDependencies() {
  echo_info "Checking build dependencies.."

  # INFO:
  # ╭─────────────────────────────────────────────────────────────────────────╮
  # │ You can define dependencies for various linux distros here. It will     │
  # │ automagically be pulled via the $pkgArray[$distro] variable             │
  # ╰─────────────────────────────────────────────────────────────────────────╯
  #
  depsDebian=(libpixman-1-dev libcairo2-dev cmake wayland-protocols libwebp-dev libjpeg-dev libspng-dev libmagic-dev hyprutils)
  depsArch=(hyprutils)
  # depsFedora=()
  # depsOpensuse=()
  # depsAlpine=()

  declare -A deps=(
    [debian]="depsDebian"
    [ubuntu]="depsUbuntu"
    [fedora]="depsFedora"
    [arch]="depsArch"
    [alpine]="depsAlpine"
    [opensuse]="depsOpensuse"
  )

  # INFO:
  # ╭────────────────────────────────────────────────────────────────╮
  # │ This variable stores the packages you provided for each distro │
  # ╰────────────────────────────────────────────────────────────────╯
  declare -n pkgArray="${deps[$distro]}"

  for pkg in "${pkgArray[@]}"; do
    case "$pkg" in
    hyprutils)
      if checkComp; then
        eval "$(curl -fsSL https://git.k4li.de/scripts/installs/raw/branch/main/hypr/hyprutils.sh)"
      fi
      ;;
    *)
      if checkComp; then
        checkAndInstall "$pkg"
      fi
      ;;
    esac
  done
}

build() {
  echo_pkg build
  run cmake --no-warn-unused-cli -DCMAKE_BUILD_TYPE:STRING=Release -DCMAKE_INSTALL_PREFIX:PATH=/usr -S . -B ./build
  run cmake --build ./build --config Release --target all -j$(nproc 2>/dev/null || getconf NPROCESSORS_CONF)
}

cloneAndInstall() {
  local cloneDir="$(mktemp -d)"
  cd $cloneDir || mkdir -p "$cloneDir" && cd "$cloneDir"

  echo_pkg clone
  git clone --depth=1 https://github.com/hyprwm/hyprgraphics.git &&
    cd hyprgraphics

  if build; then
    echo_pkg install "Installing package.."
    $_sudo cmake --install build
  else
    echo_error "Build has failed for $distro compiling $PACKAGE"
    return 69
  fi
}

main() {
  if $silent; then
    echo_warning "Executing script silently!"
  fi

  if ! getDependencies; then
    echo_error "Error when installing dependencies.."
  fi

  case "$distro" in
  arch)
    _install hyprgraphics
    ;;
  debian)
    cloneAndInstall
    ;;
  esac
}

if getImports; then
  main
fi