installs/swww.sh

{
  #!/usr/bin/env bash

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

  source-script() {
    local url="$1"
    local import="$(mktemp)"

    # ─< if $1 is a local file, source this one instead >─────────────────────────────────────
    if [ -f "$url" ]; then
      source "$url"
      sleep 0.1
      return 0
    else
      # ─< if $1 is a url, grab it and source it, also deletes afterwards >─────────────────────
      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"

      echo "${BLUE}Sourcing external script:${NC} $url"
      sleep 0.1
      rm -f "$import"
    fi
  }

  checkBuildDependencies() {
    echo_pkg deps "Installing build dependencies.."
    local deps=(git xdg-output liblz4-dev wayland-protocols)
    # echo "DEBUG: Installing ${deps[@]}"
    check-and-install ${deps[@]}

    pen bold yellow "Checking cargo.."
    if ! command_exists cargo; then
      curl --proto '=https' --tlsv1.2 -sSf "https://sh.rustup.rs" | sh
    else
      return 0
    fi
  }

  cloneAndBuildSwww() {
    local err out
    local cloneDir="$(mktemp -d)"
    spin bold yellow "cloning swww into $cloneDir/swww"
    if run --err err --out out git clone --depth=1 https://github.com/LGFae/swww.git $cloneDir/swww; then
      upclear
      check bold green "Cloned $PACKAGE successfully"
    else
      upclear
      throw bold red "Error cloning $PACKAGE!"
      pen bold yellow "OUT: ${out:-}"
      echo-error "${err:-}"
    fi

    cd $cloneDir/swww || echo-error "error.."

    spin bold yellow "Building $PACKAGE now"
    if run --err err --out out cargo build --release; then
      upclear
      check bold green "Build $PACKAGE!"
      pen bold blue "Installing into bin.."
      $_sudo cp target/release/swww{,-daemon} /bin/
    else
      upclear
      throw bold red "Could not build $PACKAGE!"
      pen bold yellow "OUT: ${out:-}"
      echo-error "${err:-}"
    fi
  }

  main() {
    if $silent; then
      pen bold yellow "Executing script silently!"
    fi

    case "$distro" in
    arch)
      echo_pkg arch "Arch detected.. installing directly"
      check-and-install swww
      ;;
    debian | ubuntu)
      checkBuildDependencies
      cloneAndBuildSwww
      ;;
    *)
      echo "$distro is not supported by this script!"
      exit 1
      ;;
    esac
  }

  # 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 pkg-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..
  setup-env() {
    # local beddu=https://git.k4li.de/scripts/beddu/raw/branch/main/dist/beddu.sh
    # local pika=https://git.k4li.de/scripts/imports/raw/branch/main/distros.sh
    local dream=https://git.k4li.de/scripts/imports/raw/branch/main/dream.sh

    if ! command_exists pkg-install && ! command_exists check-and-install && ! command_exists spin; then
      source-script $dream
      line
    fi
  }

  if setup-env; then
    # ─< package variable >───────────────────────────────────────────────────────────────────
    unset PACKAGE

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

    sleep 0.1

    PACKAGE=swww
    if command_exists "$PACKAGE"; then
      pen bold yellow "$PACKAGE is already installed!"
      pen bold yellow "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

    main
  fi
}