#!/bin/sh

set -e

TEMP_DIR_PATH=""
FONTAWESOME_PRO_DIR_NAME=""
VERSION=$1
DEST_DIR_PATH=${2:-"rnvi-fonts"}
FONT_NAME="Font Awesome Pro ${VERSION}"

setup_npm_config() {
  # always returns successfull zero code
  if [ "$(npm config get @fortawesome:registry)" = "undefined" ]; then
    npm config set "@fortawesome:registry" https://npm.fontawesome.com/
  fi

  local npm_token=""
  echo "Please enter your $FONT_NAME npm token:"
  read npm_token
  npm config set "//npm.fontawesome.com/:_authToken" "${npm_token}"
}

create_tmp_directory() {
  local tmp_dir="$(mktemp -d -t 'rnvi.XXXXXX')"
  retval=$?
  if [ "$retval" != 0 ]; then
    echo "[FAIL] Can't create temporary directory"
    return 1
  fi

  if [ -z "$tmp_dir" ]; then
    echo "[FAIL] Generated temporary directory name is empty"
    return 1
  fi

  TEMP_DIR_PATH="$tmp_dir"
}

download_and_unpack_fontawesome_pro() {
  local archive_file_name="$(npm pack @fortawesome/fontawesome-pro@^${VERSION} --silent)"
  retval=$?
  if [ "$retval" != 0 ]; then
    echo "[FAIL] Can't download [$archive_file_name] archive"
    return 1
  fi

  tar -xzf "$archive_file_name"
  retval=$?
  if [ "$retval" != 0 ]; then
    echo "[FAIL] Can't unpack [$archive_file_name] archive"
    return 1
  fi

  local font_dir_name="package"
  if [ ! -d "$font_dir_name" ]; then
    echo "[FAIL] Archive doesn't contain [$font_dir_name] required directory"
    return 1
  fi

  FONTAWESOME_PRO_DIR_NAME="$font_dir_name"
}

copy_ttf_fonts_to_dest_dir() {
  mkdir -p "$DEST_DIR_PATH"
  retval=$?
  if [ "$retval" != 0 ]; then
    echo "[FAIL] Can't create [$DEST_DIR_PATH] directory"
    return 1
  fi

  local font_dir_path="$TEMP_DIR_PATH/$FONTAWESOME_PRO_DIR_NAME/webfonts"

  if [ "$VERSION" = "5" ]; then
    cp "$font_dir_path/fa-brands-400.ttf" "$DEST_DIR_PATH/FontAwesome5_Pro_Brands.ttf" &&
      cp "$font_dir_path/fa-duotone-900.ttf" "$DEST_DIR_PATH/FontAwesome5_Pro_Duotone.ttf" &&
      cp "$font_dir_path/fa-light-300.ttf" "$DEST_DIR_PATH/FontAwesome5_Pro_Light.ttf" &&
      cp "$font_dir_path/fa-regular-400.ttf" "$DEST_DIR_PATH/FontAwesome5_Pro_Regular.ttf" &&
      cp "$font_dir_path/fa-solid-900.ttf" "$DEST_DIR_PATH/FontAwesome5_Pro_Solid.ttf"
  elif [ "$VERSION" = "6" ]; then
    cp "$font_dir_path/fa-brands-400.ttf" "$DEST_DIR_PATH/FontAwesome6_Pro_Brands.ttf" &&
      cp "$font_dir_path/fa-duotone-900.ttf" "$DEST_DIR_PATH/FontAwesome6_Pro_Duotone.ttf" &&
      cp "$font_dir_path/fa-light-300.ttf" "$DEST_DIR_PATH/FontAwesome6_Pro_Light.ttf" &&
      cp "$font_dir_path/fa-regular-400.ttf" "$DEST_DIR_PATH/FontAwesome6_Pro_Regular.ttf" &&
      cp "$font_dir_path/fa-sharp-light-300.ttf" "$DEST_DIR_PATH/FontAwesome6_Pro_Sharp_Light.ttf"
    cp "$font_dir_path/fa-sharp-regular-400.ttf" "$DEST_DIR_PATH/FontAwesome6_Pro_Sharp_Regular.ttf"
    cp "$font_dir_path/fa-sharp-solid-900.ttf" "$DEST_DIR_PATH/FontAwesome6_Pro_Sharp_Solid.ttf"
    cp "$font_dir_path/fa-sharp-thin-100.ttf" "$DEST_DIR_PATH/FontAwesome6_Pro_Sharp_Thin.ttf"
    cp "$font_dir_path/fa-solid-900.ttf" "$DEST_DIR_PATH/FontAwesome6_Pro_Solid.ttf" &&
      cp "$font_dir_path/fa-thin-100.ttf" "$DEST_DIR_PATH/FontAwesome6_Pro_Thin.ttf"
  else
    echo "[FAIL] Unsupported version [$VERSION]"
    exit 1
  fi

  retval=$?
  if [ "$retval" != 0 ]; then
    echo "[FAIL] Can't copy ttf fonts to [$DEST_DIR_PATH] directory"
    return 1
  fi
}

if create_tmp_directory; then
  echo "[SUCCESS] Temporary directory [$TEMP_DIR_PATH] was created"
else
  exit 1
fi

cd "$TEMP_DIR_PATH"

if setup_npm_config; then
  echo "[SUCCESS] Set up npm config"
else
  exit 1
fi

if download_and_unpack_fontawesome_pro; then
  echo "[SUCCESS] $FONT_NAME was unpacked to [$TEMP_DIR_PATH/$FONTAWESOME_PRO_DIR_NAME] directory"
else
  exit 1
fi
cd - >/dev/null

if copy_ttf_fonts_to_dest_dir; then
  echo "[SUCCESS] Copied $FONT_NAME to [$DEST_DIR_PATH] directory"
else
  exit 1
fi

echo "[SUCCESS] $FONT_NAME was successfully upgraded"
echo "Note: [$TEMP_DIR_PATH] was created. Delete it manually or it will be deleted automatically on next reboot"