import { USE_M2_GENERIC_PRICING_API } from '@/settings/enums.js';

/** 与 qrScene 一致：m=2 为通用价目扫码 */
export function isGenericPricingM2(m) {
  const s = String(m ?? '').trim();
  if (s === '2') return true;
  const n = Number(s);
  return !Number.isNaN(n) && n === 2;
}

export function syncM2GenericPricingStorage(m) {
  try {
    uni.setStorageSync(USE_M2_GENERIC_PRICING_API, isGenericPricingM2(m) ? '1' : '0');
  } catch (_) {}
}

export function isM2GenericPricingApiActive() {
  try {
    return uni.getStorageSync(USE_M2_GENERIC_PRICING_API) === '1';
  } catch (_) {
    return false;
  }
}

/**
 * 仅改写文档 4.1 点餐域、4.2 购物车/下单/SSE；其余 URL 不变。
 * @param {string} fullUrl path 可含 query
 */
export function rewriteM2DocumentedApiPath(fullUrl) {
  if (!fullUrl || typeof fullUrl !== 'string' || !isM2GenericPricingApiActive()) return fullUrl;

  const qIndex = fullUrl.indexOf('?');
  const path = qIndex >= 0 ? fullUrl.slice(0, qIndex) : fullUrl;
  const query = qIndex >= 0 ? fullUrl.slice(qIndex) : '';

  // 4.2 订单域：/store/order/cart*、create、sse
  if (path.startsWith('/store/order/cart')) {
    return path.replace(/^\/store\/order\/cart/, '/store/generic-order/cart') + query;
  }
  if (path === '/store/order/create') {
    return '/store/generic-order/create' + query;
  }
  if (path.startsWith('/store/order/sse/')) {
    return path.replace(/^\/store\/order\/sse\//, '/store/generic-order/sse/') + query;
  }

  // 4.1 点餐域：白名单路径 /store/dining/ -> /store/generic-dining/
  if (!path.startsWith('/store/dining/')) return fullUrl;
  const rest = path.slice('/store/dining/'.length);
  const allowed =
    rest === 'page-info' ||
    rest === 'search' ||
    rest === 'cuisines' ||
    rest.startsWith('cuisine/') ||
    rest === 'order/confirm' ||
    rest === 'coupons/available' ||
    rest === 'coupon/receive' ||
    rest === 'order/lock' ||
    rest === 'order/unlock' ||
    rest === 'order/check-lock' ||
    rest === 'order/settlement' ||
    rest === 'order/settlement/lock' ||
    rest === 'order/settlement/unlock';
  if (!allowed) return fullUrl;
  return `/store/generic-dining/${rest}${query}`;
}