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

usage() {
  cat <<'EOF'
Usage:
  scripts/call-action.sh <action> [--args '{"k":"v"}'] [--args-file args.json] [--request-id <id|auto>] [--path openclaw-action] [--test] [--pretty] [--dry-run]

Environment:
  N8N_ACTION_PATH    Default router webhook path (default: openclaw-action)
  N8N_WEBHOOK_SECRET Shared secret for header auth
  N8N_BASE_URL       Base n8n URL (default: http://192.168.153.113:18808)
  N8N_SECRET_HEADER  Header name (default: x-openclaw-secret)

Examples:
  scripts/call-action.sh append_log --args '{"text":"backup complete"}' --request-id auto
  scripts/call-action.sh notify --args-file notify.json --test --pretty
EOF
}

SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
CALL_WEBHOOK="$SCRIPT_DIR/call-webhook.sh"
ACTION_PATH="${N8N_ACTION_PATH:-openclaw-action}"
ACTION=""
ARGS='{}'
ARGS_FILE=""
REQUEST_ID=""
MODE_FLAG=""
PRETTY=0
DRY_RUN=0
EXTRA_ARGS=()

while [[ $# -gt 0 ]]; do
  case "$1" in
    --help|-h)
      usage
      exit 0
      ;;
    --args)
      ARGS="${2:?missing value for --args}"
      shift 2
      ;;
    --args-file)
      ARGS_FILE="${2:?missing value for --args-file}"
      shift 2
      ;;
    --request-id)
      REQUEST_ID="${2:?missing value for --request-id}"
      shift 2
      ;;
    --path)
      ACTION_PATH="${2:?missing value for --path}"
      shift 2
      ;;
    --test)
      MODE_FLAG="--test"
      shift
      ;;
    --prod)
      MODE_FLAG="--prod"
      shift
      ;;
    --pretty)
      PRETTY=1
      shift
      ;;
    --dry-run)
      DRY_RUN=1
      shift
      ;;
    --*)
      echo "Unknown option: $1" >&2
      usage >&2
      exit 2
      ;;
    *)
      if [[ -z "$ACTION" ]]; then
        ACTION="$1"
      else
        EXTRA_ARGS+=("$1")
      fi
      shift
      ;;
  esac
done

if [[ -z "$ACTION" ]]; then
  usage >&2
  exit 2
fi

if [[ ${#EXTRA_ARGS[@]} -gt 0 ]]; then
  echo "Unexpected extra arguments: ${EXTRA_ARGS[*]}" >&2
  exit 2
fi

if [[ -n "$ARGS_FILE" ]]; then
  ARGS="$(cat "$ARGS_FILE")"
fi

if [[ "$REQUEST_ID" == "auto" ]]; then
  REQUEST_ID="$(python3 - <<'PY'
import uuid
print(uuid.uuid4())
PY
)"
fi

PAYLOAD="$({
  python3 - <<'PY' "$ACTION" "$ARGS" "$REQUEST_ID"
import json, sys

action = sys.argv[1]
args = json.loads(sys.argv[2])
request_id = sys.argv[3]

if not isinstance(args, dict):
    raise SystemExit('Action args must decode to a JSON object.')

payload = {
    'action': action,
    'args': args,
}
if request_id:
    payload['request_id'] = request_id

print(json.dumps(payload, separators=(',', ':')))
PY
} )"

CMD=("$CALL_WEBHOOK" "$ACTION_PATH" --data "$PAYLOAD")
[[ -n "$MODE_FLAG" ]] && CMD+=("$MODE_FLAG")
[[ "$PRETTY" -eq 1 ]] && CMD+=(--pretty)
[[ "$DRY_RUN" -eq 1 ]] && CMD+=(--dry-run)

exec "${CMD[@]}"