/**
 * 扫码/太阳码进入后：调桌位就餐状态并 reLaunch 到点餐或选人数页。
 * 供 launch、首页（太阳码直达首页）、TabBar 等共用。
 */
import * as diningApi from '@/api/dining.js';
import { parseSceneToStoreTable, isScanEntryAllowed } from '@/utils/qrScene.js';

function trim(v) {
  return v == null ? '' : String(v).trim();
}

function tryDecodeURIComponent(s) {
  if (s == null || s === '') return '';
  try {
    return decodeURIComponent(String(s).trim());
  } catch (_) {
    return String(s).trim();
  }
}

/**
 * 从页面 onLoad 参数解析 tableId、storeId、m（与 pages/launch 一致；兼容 query 嵌套与平铺）
 */
export function getScanEntryIdsFromOptions(options) {
  if (!options || typeof options !== 'object') return { tableid: '', storeId: '', m: '' };
  const flat = { ...options, ...(options.query && typeof options.query === 'object' ? options.query : {}) };
  let m = trim(flat.m ?? flat.mode ?? '');
  const directTable =
    flat.tableId ?? flat.tableid ?? flat.table_id ?? flat.t ?? '';
  if (directTable) {
    const directStore = flat.storeId ?? flat.storeid ?? flat.s ?? '';
    return { tableid: String(directTable).trim(), storeId: String(directStore || '').trim(), m };
  }
  const sceneEnc = flat.scene ?? flat.q ?? '';
  const scene = sceneEnc ? tryDecodeURIComponent(sceneEnc) : '';
  if (scene) {
    const { storeId: s, tableId: t, m: sm } = parseSceneToStoreTable(scene);
    return { tableid: trim(t), storeId: trim(s), m: m || trim(sm) || '' };
  }
  return { tableid: '', storeId: '', m };
}

/**
 * 查询 /store/dining/table-dining-status 后跳转（与 launch 页逻辑一致）
 * @param {string} tableidResolved 桌台主键 id
 */
export async function runTableDiningStatusAndRedirect(tableidResolved) {
  const tid = trim(tableidResolved);
  if (!tid) {
    uni.reLaunch({ url: '/pages/index/index' });
    return;
  }
  try {
    const res = await diningApi.GetTableDiningStatus(tid);
    const raw = res && typeof res === 'object' ? res : {};
    const inDining =
      res === true ||
      res === 'true' ||
      raw?.inDining === true ||
      raw?.inDining === 'true' ||
      raw?.data?.inDining === true ||
      raw?.data?.inDining === 'true';
    const dinerCount =
      raw?.dinerCount ??
      raw?.diner ??
      raw?.data?.dinerCount ??
      raw?.data?.diner ??
      uni.getStorageSync('currentDiners') ??
      1;
    const dinersStr = String(dinerCount);
    if (inDining) {
      uni.setStorageSync('currentDiners', dinersStr);
      uni.reLaunch({
        url: `/pages/orderFood/index?tableid=${encodeURIComponent(tid)}&diners=${encodeURIComponent(dinersStr)}`
      });
    } else {
      uni.reLaunch({
        url: `/pages/numberOfDiners/index?inDining=1&tableid=${encodeURIComponent(tid)}&diners=${encodeURIComponent(dinersStr)}`
      });
    }
  } catch (err) {
    console.warn('[tableDiningLaunch] 查询桌位就餐状态失败，进入选择人数页', err);
    const fallbackDiners = uni.getStorageSync('currentDiners') || '1';
    uni.reLaunch({
      url: `/pages/numberOfDiners/index?inDining=1&tableid=${encodeURIComponent(tid)}&diners=${encodeURIComponent(fallbackDiners)}`
    });
  }
}