#!/bin/bash
# Downloads shared file from google drive with given file ID

set -e

# shellcheck source=./util.sh disable=SC2155
function _dl_util_sh {
  local UTIL_VERSION="v2.2.6"
  local dir="$( dirname "$1" )"
  [ -f "${dir}/util.sh" ] || bash "${dir}/download-util.sh" "$UTIL_VERSION" || exit 1
  source "${dir}/util.sh"
}; _dl_util_sh "$0"; unset -f _dl_util_sh

function main {
  check "curl"
  check "jq"
  check "hq"

  local GID="$1"

  [ -z "$GID" ] && err "Expected first argument to be the shared google file ID"

  local URL1="https://drive.google.com/uc?export=download&id=${GID}"

  local -a values=()

  values=( $( \
    curl -L "$URL1" \
    | hq '{ name: .uc-name-size > a | @text, size: .uc-name-size | @text, url: form | @(action), uuid: form input[name=uuid] | @(value) }' \
    | jq -r '.name, (.size | capture("\\((?<s>.+)\\)").s), .url, .uuid' \
  ) )

  local GNAME="${values[0]}"
  local GSIZE="${values[1]}"
  local GURL="${values[2]}"
  local GUUID="${values[3]}"

  local URL2="${GURL}?export=download&confirm=t&id=${GID}&uuid=${GUUID}"

  prompt_question "Download ${GSIZE} file to ${GNAME}?" y || exit 1

  try_run curl -L -o "$GNAME" "$URL2"
}

main "$@"