#!/usr/bin/env bash

set -o pipefail

cmd=$1
chart=$2
manifests=${4:-manifests}
outdir=${5:-_manifests}

build() {
  mkdir -p "${outdir}"/templates
  echo "Creating ${outdir}/templates"

  echo "generating ${outdir}/Chart.yaml" 1>&2

  cat <<EOF > "${outdir}"/Chart.yaml
apiVersion: v1
appVersion: "1.0"
# description: A Helm chart for Kubernetes
name: ${chart}
version: 0.1.0
EOF

if [[ -d "${manifests}" ]]; then
    cp -r "${manifests}"/* "${outdir}"/templates
elif [[ -f "${manifests}" ]]; then
    cp "${manifests}" "${outdir}"/templates
fi
}

clean() {
  echo "cleaning ${outdir}" 1>&2
  rm -rf "${outdir}"
}

case "${cmd}" in
  "build" ) build ;;
  "clean" ) clean ;;
  * ) echo "unsupported command: ${cmd}" 1>&2; exit 1 ;;
esac