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

script_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
repo_root="$(cd "${script_dir}/.." && pwd)"

template_path="${repo_root}/deploy/templates/qortal/default-node-settings.json"
target_dir="${repo_root}/qortal/data"
target_settings=""

resolve_path() {
  local raw="${1:-}"
  if [[ -z "${raw}" ]]; then
    printf '%s' ""
    return 0
  fi
  if [[ "${raw}" == /* ]]; then
    printf '%s' "${raw}"
    return 0
  fi
  printf '%s' "${repo_root}/${raw}"
}

ensure_qortal_data_permissions() {
  local data_dir="${1:-}"
  if [[ "${EUID:-$(id -u)}" -ne 0 ]]; then
    return 0
  fi
  if [[ -z "${data_dir}" || ! -d "${data_dir}" ]]; then
    return 0
  fi

  chown -R 1000:100 "${data_dir}" >/dev/null 2>&1 || true
  chmod -R u+rwX,g+rwX "${data_dir}" >/dev/null 2>&1 || true
}

ensure_auto_update_disabled() {
  local settings_file="$1"
  if [[ ! -f "${settings_file}" || ! -s "${settings_file}" ]]; then
    return 0
  fi

  if grep -qE '"autoUpdateEnabled"[[:space:]]*:' "${settings_file}"; then
    sed -E -i 's/"autoUpdateEnabled"[[:space:]]*:[[:space:]]*(true|false)/"autoUpdateEnabled": false/g' "${settings_file}"
    if grep -qE '"autoUpdateEnabled"[[:space:]]*:[[:space:]]*false' "${settings_file}"; then
      echo "Ensured autoUpdateEnabled=false in ${settings_file}"
      return 0
    fi
  fi

  sed -E -i '$ s/}[[:space:]]*$/,\n  "autoUpdateEnabled": false\n}/' "${settings_file}" || true
  if grep -qE '"autoUpdateEnabled"[[:space:]]*:[[:space:]]*false' "${settings_file}"; then
    echo "Added autoUpdateEnabled=false to ${settings_file}"
    return 0
  fi

  echo "Warning: could not automatically set autoUpdateEnabled in ${settings_file}. Add it manually." >&2
}

while [[ $# -gt 0 ]]; do
  case "$1" in
    --target-dir)
      target_dir="${2:-}"
      shift 2
      ;;
    --target-dir=*)
      target_dir="${1#*=}"
      shift
      ;;
    --target-file)
      target_settings="${2:-}"
      shift 2
      ;;
    --target-file=*)
      target_settings="${1#*=}"
      shift
      ;;
    --template-file)
      template_path="${2:-}"
      shift 2
      ;;
    --template-file=*)
      template_path="${1#*=}"
      shift
      ;;
    -h|--help)
      cat <<USAGE
Usage: ./scripts/ensure-qortal-settings.sh [options]

Initialize a Qortal node settings.json and force autoUpdateEnabled=false.

Options:
  --target-dir <path>     Settings directory (default: ${repo_root}/qortal/data)
  --target-file <path>    Settings file path override
  --template-file <path>  Template JSON to seed from (default: deploy/templates/qortal/default-node-settings.json)
  -h, --help              Show this help
USAGE
      exit 0
      ;;
    *)
      echo "Unknown argument: $1" >&2
      exit 1
      ;;
  esac
done

template_path="$(resolve_path "${template_path}")"
target_dir="$(resolve_path "${target_dir}")"
if [[ -z "${target_settings}" ]]; then
  target_settings="${target_dir%/}/settings.json"
else
  target_settings="$(resolve_path "${target_settings}")"
  target_dir="$(dirname "${target_settings}")"
fi

if [[ ! -f "${template_path}" ]]; then
  echo "Missing template: ${template_path}" >&2
  exit 1
fi

mkdir -p "${target_dir}"
ensure_qortal_data_permissions "${target_dir}"

if [[ -f "${target_settings}" && -s "${target_settings}" ]]; then
  echo "Using existing Qortal settings: ${target_settings}"
  ensure_auto_update_disabled "${target_settings}"
  exit 0
fi

cp "${template_path}" "${target_settings}"
echo "Initialized Qortal settings from template: ${target_settings}"
ensure_auto_update_disabled "${target_settings}"