#!/usr/bin/env bash
set -euo pipefail

ROOT_DIR=$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)
CHART_DIR="$ROOT_DIR/helm/rustfs"

render_standalone_deployment() {
  helm template rustfs "$CHART_DIR" \
    --namespace rustfs \
    --set mode.distributed.enabled=false \
    --set mode.standalone.enabled=true \
    "$@" |
    awk '
      /^# Source: rustfs\/templates\/deployment.yaml$/ { in_deployment = 1 }
      in_deployment && /^---$/ { exit }
      in_deployment { print }
    '
}

recreate_output=$(render_standalone_deployment --set mode.standalone.strategy.type=Recreate)
grep -q "type: Recreate" <<<"$recreate_output"
if grep -q "rollingUpdate:" <<<"$recreate_output"; then
  echo "Recreate strategy must not render rollingUpdate fields" >&2
  exit 1
fi

rolling_output=$(render_standalone_deployment)
grep -q "type: RollingUpdate" <<<"$rolling_output"
grep -q "rollingUpdate:" <<<"$rolling_output"