#!/bin/bash

set -eu -o pipefail

readonly PROVISION_FILEPATH="/root/userdata.json"

# TODO do we allow specifying version?
# TODO add restore arguments (accessable url and encryption key)
domain=""
provider="generic"
versionsUrl="https://s3.amazonaws.com/prod-cloudron-releases/versions.json"
tlsProvider="letsencrypt-prod"

# 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 "domain:,provider:,versions-url:,tls-provider:" -n "$0" -- "$@")
eval set -- "${args}"

while true; do
    case "$1" in
    --domain) domain="$2"; shift 2;;
    --provider) provider="$2"; shift 2;;
    --versions-url) versionsUrl="$2"; shift 2;;
    --tls-provider) tlsProvider="$2"; shift 2;;
    --) break;;
    *) echo "Unknown option $1"; exit 1;;
    esac
done

if [[ -z "${domain}" ]]; then
    echo "--domain is required"
    exit 1
fi

# TODO validate input

cat > "${PROVISION_FILEPATH}" <<EOF
{
    "data": {
        "boxVersionsUrl": "${versionsUrl}",
        "fqdn": "${domain}",
        "provider": "${provider}",
        "tlsConfig": {
            "provider": "${tlsProvider}"
        }
    }
}
EOF

# TODO print further instructions
echo "The Cloudron is being initialized"
echo "Create DNS record for this ip if not done already"
echo "Once DNS is ready, visit https://my.${domain} to finish setup"