#!/usr/bin/env bash
# Example --dry-run pattern for deployment/change scripts
# Recommendation: docs/10-best-practices/RECOMMENDATIONS_AND_SUGGESTIONS.md (§ Script Improvements)
# Usage: DRY_RUN=1 ./your-script.sh   OR   ./your-script.sh --dry-run

set -euo pipefail

DRY_RUN="${DRY_RUN:-0}"
for arg in "$@"; do
  if [[ "$arg" == "--dry-run" || "$arg" == "-n" ]]; then
    DRY_RUN=1
    break
  fi
done

run_or_echo() {
  if [[ "$DRY_RUN" == "1" ]]; then
    echo "[DRY-RUN] Would execute: $*"
  else
    "$@"
  fi
}

# Example: run_or_echo pct set 106 --memory 8192
# Example: run_or_echo cp config.toml /opt/besu/

if [[ "${BASH_SOURCE[0]}" == "${0}" ]]; then
  echo "DRY_RUN=$DRY_RUN - Use DRY_RUN=1 or --dry-run to preview without executing."
  run_or_echo echo "Example command (no-op when dry-run)"
fi