#!/bin/bash

set -eu

assertNotEmpty() {
    : "${!1:? "$1 is not set."}"
}

# Only GNU getopt supports long options. OS X comes bundled with the BSD getopt
# brew install gnu-getopt to get the GNU getopt on OS X
[[ $(uname -s) == "Darwin" ]] && GNU_GETOPT="/usr/local/opt/gnu-getopt/bin/getopt" || GNU_GETOPT="getopt"
readonly GNU_GETOPT

args=$(${GNU_GETOPT} -o "" -l "revision:" -n "$0" -- "$@")
eval set -- "${args}"

commitish="HEAD"

while true; do
    case "$1" in
    --revision) commitish="$2"; shift 2;;
    --) break;;
    *) echo "Unknown option $1"; exit 1;;
    esac
done

readonly SOURCE_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")"/.. && pwd)"
readonly TMPDIR=${TMPDIR:-/tmp} # why is this not set on mint?

assertNotEmpty AWS_DEV_ACCESS_KEY
assertNotEmpty AWS_DEV_SECRET_KEY

version=$(cd "${SOURCE_DIR}" && git rev-parse "${commitish}")
bundle_dir=$(mktemp -d -t box 2>/dev/null || mktemp -d box-XXXXXXXXXX --tmpdir=$TMPDIR)
bundle_file="${TMPDIR}/box-${version}.tar.gz"

chmod "o+rx,g+rx" "${bundle_dir}" # otherwise extracted tarball director won't be readable by others/group
echo "Checking out code [${version}] into ${bundle_dir}"
(cd "${SOURCE_DIR}" && git archive --format=tar ${version} | (cd "${bundle_dir}" && tar xf -))

echo "Installing modules with dev dependencies"
cd "${bundle_dir}" && npm install

echo "Building webadmin assets"
echo "{}" > "${bundle_dir}/webadmin/deploymentConfig.json"
(cd "${bundle_dir}" && gulp)

echo "Remove intermediate files required at build-time only"
rm -rf "${bundle_dir}/node_modules/"
rm -rf "${bundle_dir}/webadmin/src"
rm -rf "${bundle_dir}/gulpfile.js"

echo "Installing node modules for production"
(cd "${bundle_dir}" && npm install --production)

echo "Create final tarball"
cd "${bundle_dir}" && tar czvf "${bundle_file}" .

echo "Uploading bundle to S3"
# That special header is needed to allow access with singed urls created with different aws credentials than the ones the file got uploaded
s3cmd --ssl --add-header=x-amz-acl:authenticated-read --access_key="${AWS_DEV_ACCESS_KEY}" --secret_key="${AWS_DEV_SECRET_KEY}" --no-mime-magic put "${bundle_file}" "s3://cloudron-dev-releases/box-${version}.tar.gz"

echo "Cleaning up ${bundle_dir}"
rm -rf "${bundle_dir}" "${bundle_file}"

echo "The URL for the versions file is: https://cloudron-dev-releases.s3.amazonaws.com/box-${version}.tar.gz"