#!/bin/sh
set -eu

container_name="${1:-n8n}"
callback_url="${2:-http://192.168.10.150:1236/api/v1/integrations/n8n/return-callback}"
source_workflow="${3:-n8n/mobilityops-return-processing.json}"

if [ ! -f .env ]; then
  echo "Missing deployment .env" >&2
  exit 1
fi
if [ ! -f "$source_workflow" ]; then
  echo "Missing workflow export: $source_workflow" >&2
  exit 1
fi
if ! docker inspect "$container_name" >/dev/null 2>&1; then
  echo "Existing n8n container not found: $container_name" >&2
  exit 1
fi

callback_token="$(sed -n 's/^MOBILITYOPS_CALLBACK_TOKEN=//p' .env | tail -n 1)"
if [ -z "$callback_token" ]; then
  echo "MOBILITYOPS_CALLBACK_TOKEN is empty" >&2
  exit 1
fi

temporary_workflow="$(mktemp /tmp/mobilityops-n8n-workflow.XXXXXX.json)"
container_workflow="/tmp/mobilityops-return-processing.json"
cleanup() {
  rm -f "$temporary_workflow"
  docker exec "$container_name" rm -f "$container_workflow" >/dev/null 2>&1 || true
}
trap cleanup EXIT INT TERM

jq --arg callback_url "$callback_url" --arg callback_token "$callback_token" '
  (.nodes[] | select(.id == "callback-node") | .parameters.url) = $callback_url |
  (.nodes[] | select(.id == "callback-node") | .parameters.headerParameters.parameters[] |
    select(.name == "X-Service-Token") | .value) = $callback_token
' "$source_workflow" > "$temporary_workflow"

docker cp "$temporary_workflow" "$container_name:$container_workflow" >/dev/null
docker exec "$container_name" n8n import:workflow --input="$container_workflow"
docker exec "$container_name" n8n publish:workflow --id=mobilityops-return-processing
docker restart "$container_name" >/dev/null

echo "Published MobilityOps return workflow to existing container ${container_name}"