@pisell/pisellos/dist/solution/BookingByStep/utils/capacity.js

一个可扩展的前端模块化SDK框架，支持插件系统

function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it.return != null) it.return(); } finally { if (didErr) throw err; } } }; }
function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }
function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i]; return arr2; }
/**
 * @title: 基于选择的商品格式化容量
 * @description:
 * @param {any} param1
 * @return {*}
 * @Author: zhiwei.Wang
 */
export var formatDefaultCapacitys = function formatDefaultCapacitys(_ref) {
  var capacity = _ref.capacity,
    product_bundle = _ref.product_bundle;
  if ((capacity === null || capacity === void 0 ? void 0 : capacity.type) === 'package') {
    return (product_bundle || []).map(function (d) {
      var id = d.bundle_product_id;
      var item = ((capacity === null || capacity === void 0 ? void 0 : capacity.package) || []).find(function (item) {
        return item.product_id === id;
      });
      return {
        id: id,
        value: item ? d.num || 0 : 0,
        name: (item === null || item === void 0 ? void 0 : item.name) || (d === null || d === void 0 ? void 0 : d.title)
      };
    });
  }
  if ((capacity === null || capacity === void 0 ? void 0 : capacity.type) === 'custom') {
    return ((capacity === null || capacity === void 0 ? void 0 : capacity.custom) || []).map(function (d) {
      return {
        id: d.id,
        value: d.min,
        name: d.name
      };
    });
  }

  // 默认为1
  return [{
    id: 0,
    value: 1,
    name: ''
  }];
};

/**
 * @title: 获取总容量
 * @description:
 * @param {object} capacity 为 formatDefaultCapacitys()的结果
 * @return {*}
 * @Author: zhiwei.Wang
 */
export var getSumCapacity = function getSumCapacity(_ref2) {
  var capacity = _ref2.capacity;
  var sum = 0;
  var _iterator = _createForOfIteratorHelper(capacity || []),
    _step;
  try {
    for (_iterator.s(); !(_step = _iterator.n()).done;) {
      var item = _step.value;
      sum += item.value;
    }
  } catch (err) {
    _iterator.e(err);
  } finally {
    _iterator.f();
  }
  return sum;
};

/**
 * 给定购物车数据，返回对应的 capacity 信息和套餐 capacity
 *
 * @export
 * @param {CartItem} targetCartItem
 * @return {*} 
 */
export function getCapacityInfoByCartItem(targetCartItem) {
  var _targetCartItem$_prod;
  var formatCapacity = formatDefaultCapacitys({
    capacity: (_targetCartItem$_prod = targetCartItem._productOrigin) === null || _targetCartItem$_prod === void 0 ? void 0 : _targetCartItem$_prod.capacity,
    product_bundle: targetCartItem._origin.product.product_bundle
  });
  var currentCapacity = getSumCapacity({
    capacity: formatCapacity
  });
  return {
    formatCapacity: formatCapacity,
    currentCapacity: currentCapacity
  };
}

/**
 * @title: 传入资源，如果有子资源，会根据组合资源的 capacity 计算修改子资源的 capacity
 * @description:
 * @param {object} resource
 * @return {*}
 * @Author: jinglin.tan
 */
export var checkSubResourcesCapacity = function checkSubResourcesCapacity(resource) {
  if (resource.children && resource.children.length) {
    var countCapacity = resource.capacity; // 100
    resource.children.forEach(function (child, index) {
      if (index === resource.children.length - 1) {
        // 如果是最后一个资源，直接拿剩余未分配完的容量去占用
        // 哪怕这个东西会超过资源本身的 capacity也得让他占，PRD 里有写
        child.capacity = countCapacity;
        return;
      }
      if (child.capacity <= countCapacity) {
        countCapacity -= child.capacity; // 100 -  = 90
      } else {
        child.capacity = countCapacity; // 10
        countCapacity = 0; // 0
      }
    });
  }
};

/**
 * 检查资源是否有足够的容量供额外使用
 * @param currentCapacity - 当前已使用的容量
 * @param requiredCapacity - 需要的额外容量
 * @param maxCapacity - 最大允许容量
 * @returns 如果资源可以容纳额外的容量则返回 true
 */
export var checkResourceCanUseByCapacity = function checkResourceCanUseByCapacity(currentCapacity, requiredCapacity, maxCapacity) {
  // Handle edge cases early
  if (currentCapacity < 0 || requiredCapacity < 0 || maxCapacity <= 0) {
    return false;
  }
  return currentCapacity + requiredCapacity <= maxCapacity;
};