#!/bin/bash -e

# A script to mass install Gnome extensions from a single folder.
#

# for global extensions, use /usr/share/gnome-shell/extensions/
EXTENSIONS_DIR=~/.local/share/gnome-shell/extensions
TMP_DIR="/tmp/gnome-install-extensions"
DIR=$1

# exit early, exit often
if [[ -z "${DIR}" ]]; then
  echo "You must pass a directory. E.g. ${0} ~/Downloads"
  exit 10
fi

rm -rf ${TMP_DIR}
mkdir -p ${EXTENSIONS_DIR} ${TMP_DIR}
pushd ${TMP_DIR} > /dev/null

for f in $(ls ${DIR}/*.shell-extension.zip); do
  fn=$(basename -- "${f}")
  local_dir="$(basename ${fn%.*})"
  metadata="${local_dir}/metadata.json"

  cp ${f} ${TMP_DIR}/${fn}
  unzip -qq ${fn} -d ${local_dir}
  [[ ! -f "${metadata}" ]] && echo "${metadata} not found, skipping" && continue

  # get the UUID to name
  name=$(grep -E "uuid" ${metadata} | sed 's/\"uuid\"\: \"//g' | sed 's/\",//g' )
  # gnome extension dirs must name the uuid name in metadata.json above
  mv ${local_dir} ${name}
  rm ${fn}
  mv * ${EXTENSIONS_DIR}/
done

popd > /dev/null
rm -rf ${TMP_DIR}
echo ""