#!/usr/bin/env bash

set -eu -o pipefail

# shellcheck source=../lib/utils.sh
source "$(dirname "$0")/../lib/utils.sh"

install_nodejs() {
  local install_type="$1" version_query="$2" install_path="$3"
  local version=

  version="$(resolve_version_query "$version_query")"

  if [ "$version" != "$version_query" ]; then
    install_aliased_version "$version" "$version_query" "$install_path"
  else
    install_canon_version "$install_type" "$version" "$install_path"
  fi
}


try_to_update_nodebuild() {
  local exit_code=0

  "$ASDF_NODEJS_PLUGIN_DIR/lib/commands/command-update-nodebuild.bash" 2> /dev/null || exit_code=$?

  if [ "$exit_code" != 0 ]; then
    printf "
$(colored $YELLOW WARNING): Updating node-build failed with exit code %s. The installation will
try to continue with already installed local defintions. To debug what went
wrong, try to manually update node-build by running: \`asdf %s update nodebuild\`
\n" "$exit_code" "$ASDF_NODEJS_PLUGIN_NAME"
  fi
}


install_canon_version() {
  local install_type="$1" version="$2" install_path="$3"
  local args=()

  if [ "$install_type" = ref ] || [ "${ASDF_NODEJS_FORCE_COMPILE-}" ]; then
    args+=(-c)
  fi

  try_to_update_nodebuild

  NODE_BUILD_CACHE_PATH="${NODE_BUILD_CACHE_PATH:-$ASDF_DOWNLOAD_PATH}" \
    nodebuild_wrapped ${args+"${args[@]}"} "$version" "$install_path"
}


install_aliased_version() {
  local version=$1
  local version_query=$2
  local install_path=$3

  # install the true version and only symlink it to the alias
  >&2 echo "Installing alias $version_query as $version"
  asdf install "$(plugin_name)" "$version" \
    || die "Could not install version $version"

  if [ -L "$install_path" ]; then
    rm "$install_path"
  else
    rmdir "$install_path"
  fi

  >&2 echo "Linking \"$version_query\" to \"$version\""
  ln -s "$(asdf where "$(plugin_name)" "$version")" "$install_path"
}


resolve_version_query() {
  local version_query="$1"

  local canon_version="$(
    # Find the first candidate which the alias match, then print it version
    print_index_tab \
      | awk -F'\t' -v "alias=$version_query" '$1 == alias { print $2; exit }'
  )"

  if [ -z "$canon_version" ]; then
    echo "$version_query"
  else
    echo "$canon_version"
  fi
}


install_default_npm_packages() {
  local default_npm_packages_file="${ASDF_NPM_DEFAULT_PACKAGES_FILE:=$HOME/.default-npm-packages}" filtered_packages=

  if ! [ -f "$default_npm_packages_file" ]; then
    return 0
  fi

  filtered_packages=$(grep -vE "^\s*#" < "$default_npm_packages_file")

  if [ "${filtered_packages-}" ]; then
    printf "$(colored $CYAN "Installing the following default packages globally: ")"
    xargs printf "%s, " <<< "$filtered_packages"
    printf "\x8\x8 \n" # Cleanup last comma

    (
      if [ -r "$ASDF_NODEJS_PLUGIN_DIR/bin/exec-env" ]; then
        . "$ASDF_NODEJS_PLUGIN_DIR/bin/exec-env"
      fi

      xargs env PATH="$ASDF_INSTALL_PATH/bin:$PATH" npm install -g <<< "$filtered_packages"
    )
  fi
}

install_nodejs "$ASDF_INSTALL_TYPE" "$ASDF_INSTALL_VERSION" "$ASDF_INSTALL_PATH"

install_default_npm_packages \
  || printf "\n$(colored $YELLOW WARNING:) An error occurred when installing the default npm packages, but Node's installation succeeded\n"

asdf reshim "$(plugin_name)" "$ASDF_INSTALL_VERSION"