#!/bin/bash

set -o nounset -o errexit -o pipefail

NAME=gluebuddy
LATEST_GLUEBUDDY_FILE=/root/latest_release
readonly PROJECT_ID="archlinux%2Fgluebuddy"

readonly TRUSTED_UIDs=(
	anthraxx@archlinux.org
	jelle@archlinux.org
)
readonly TRUSTED_KEYS=(
	E240B57E2C4630BA768E2F26FC1B547C8D8172C8
	E499C79F53C96A54E572FEE1C06086337C50773E
)

RELEASES="$(curl --silent --show-error --fail "https://gitlab.archlinux.org/api/v4/projects/${PROJECT_ID}/releases")"
LATEST_RELEASE_TAG="$(jq -r .[0].tag_name <<< "${RELEASES}")"

if [ -f $LATEST_GLUEBUDDY_FILE ]; then
   LATEST_RELEASE_DOWNLOAD=$(cat ${LATEST_GLUEBUDDY_FILE})
  if [ "$LATEST_RELEASE_TAG" = "$LATEST_RELEASE_DOWNLOAD" ]; then
    exit 0
  fi
fi


readonly TMPDIR="$(mktemp --directory --tmpdir="/var/tmp")"
trap "rm -rf \"${TMPDIR}\"" EXIT
cd "${TMPDIR}"

RELEASES="$(curl --silent --show-error --fail "https://gitlab.archlinux.org/api/v4/projects/${PROJECT_ID}/releases/$LATEST_RELEASE_TAG")"
ASSETS=$(echo $RELEASES | jq .assets.links)
LINKS=$(echo $ASSETS | jq -r '.[].direct_asset_url')
links=($LINKS)

for i in "${links[@]}"
do
  curl --silent --show-error --fail --location --remote-name "$i"
done

rsop verify "${NAME}.sig" <(pacman-key --export "${TRUSTED_KEYS[@]}") < "${NAME}"

mv ${NAME} /usr/local/bin/${NAME}
chmod +x /usr/local/bin/${NAME}
echo "$LATEST_RELEASE_TAG" > $LATEST_GLUEBUDDY_FILE
