feat(taxes_and_fees): update a logic of calculation taxes and fees

compiled/index.js

@@ -4,5 +4,6 @@ module.exports = {
   vendor: require('./vendor'),
   flights: require('./flights'),
   offer: require('./offer'),
-  currency: require('./currency')
+  currency: require('./currency'),
+  occupancy: require('./occupancy')
 };

compiled/occupancy/index.js

@@ -0,0 +1,89 @@
+"use strict";
+
+function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest(); }
+
+function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }
+
+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$/.test(n)) return _arrayLikeToArray(o, minLen); }
+
+function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }
+
+function _iterableToArrayLimit(arr, i) { var _i = arr == null ? null : typeof Symbol !== "undefined" && arr[Symbol.iterator] || arr["@@iterator"]; if (_i == null) return; var _arr = []; var _n = true; var _d = false; var _s, _e; try { for (_i = _i.call(arr); !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }
+
+function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }
+
+var match = function match(occupancy) {
+  return !(occupancy.match(/^[0-9]{1,2}-[0-9]{1,2}-[0-9]{1,2}?$/gi) == null) || !(occupancy.match(/^[0-9]{1,2}(-[0-9]{1,2}?(,[0-9]{1,2})*)?$/ig) == null);
+};
+
+var parse = function parse(occupancy) {
+  if (occupancy.match(/^[0-9]{1,2}(-[0-9]{1,2}?(,[0-9]{1,2})*)?$/ig)) {
+    var _occupancy$split = occupancy.split('-'),
+        _occupancy$split2 = _slicedToArray(_occupancy$split, 2),
+        adults = _occupancy$split2[0],
+        ages = _occupancy$split2[1];
+
+    var children = 0;
+    var childrenAges = [];
+
+    if (ages) {
+      childrenAges = ages.split(',').map(function (x) {
+        return Number(x);
+      });
+      children = childrenAges.length;
+    }
+
+    return {
+      adults: Number(adults),
+      children: Number(children),
+      infants: 0,
+      childrenAges: childrenAges
+    };
+  } else {
+    var _occupancy$split3 = occupancy.split('-'),
+        _occupancy$split4 = _slicedToArray(_occupancy$split3, 3),
+        _adults = _occupancy$split4[0],
+        _children = _occupancy$split4[1],
+        infants = _occupancy$split4[2];
+
+    return {
+      adults: Number(_adults),
+      children: Number(_children),
+      infants: Number(infants),
+      childrenAges: []
+    };
+  }
+};
+
+var toString = function toString(occupancy) {
+  if (occupancy.childrenAges && occupancy.childrenAges.length) {
+    return "".concat(occupancy.adults, "-").concat(occupancy.childrenAges.join(','));
+  } else {
+    return "".concat(occupancy.adults, "-").concat(occupancy.children, "-").concat(occupancy.infants);
+  }
+};
+
+var get = function get(occupancy) {
+  var occupancies = [];
+
+  if (typeof occupancy === 'string') {
+    if (occupancy.split(',').every(function (occupancy) {
+      return !!occupancy.match(/^[0-9]{1,2}-[0-9]{1,2}-[0-9]{1,2}?$/gi);
+    })) {
+      occupancies = occupancy.split(',').map(parse);
+    } else {
+      occupancies = [occupancy].map(parse);
+    }
+  } else {
+    occupancies = occupancy.map(parse);
+  }
+
+  return occupancies;
+};
+
+module.exports = {
+  parse: parse,
+  get: get,
+  match: match,
+  toString: toString
+};

compiled/offer/pricing.js

@@ -1,18 +1,95 @@
 "use strict";
 
-var calculateTaxAmount = function calculateTaxAmount(_ref) {
-  var price = _ref.price,
-      taxesAndFees = _ref.taxesAndFees,
-      numberOfNights = _ref.numberOfNights;
+var countOfMembers = function countOfMembers(occupancies) {
+  return (occupancies || []).reduce(function (acc, occupancy) {
+    return acc + occupancy.adults + (occupancy.children || 0) + (occupancy.infants || 0);
+  }, 0) || 2;
+};
+
+var perNight = function perNight(_ref) {
+  var total = _ref.total,
+      unit = _ref.unit,
+      value = _ref.value,
+      nights = _ref.nights,
+      perPerson = _ref.perPerson,
+      occupancies = _ref.occupancies;
+  var members = perPerson ? countOfMembers(occupancies) : 1;
+
+  if (unit === 'percentage') {
+    return total / 100 * value * members;
+  } else {
+    return value * nights * members;
+  }
+};
+
+var perStay = function perStay(_ref2) {
+  var total = _ref2.total,
+      unit = _ref2.unit,
+      value = _ref2.value,
+      perPerson = _ref2.perPerson,
+      occupancies = _ref2.occupancies;
+  var members = perPerson ? countOfMembers(occupancies) : 1;
+
+  if (unit === 'percentage') {
+    return total / 100 * value * members;
+  } else {
+    return value * members;
+  }
+};
+/**
+ * Extract and validate the offer and offer package for an order
+ *
+ * interface TaxesAndFees {
+ *   name: string;
+ *   unit: "percentage" | "amount";
+ *   type: "night" | "stay";
+ *   per_person: boolean;
+ *   value: number;
+ * }
+ *
+ * interface Occupants {
+ *   adults: number;
+ *   children?: number;
+ *   infants?: number;
+ *   childrenAge?: Array<number>;
+ * }
+ *
+ * @param {object} params - All params
+ * @param {number} params.total - The total amount of booking period
+ * @param {Array<TaxesAndFees>} params.taxesAndFees - The orders currency code
+ * @param {number} params.nights - The number of nights
+ * @param {Array<Occupants>} params.occupancies - The occupancies
+ * @returns {number} Sum of taxes and fees
+ */
+
+
+var calculateTaxAmount = function calculateTaxAmount(_ref3) {
+  var total = _ref3.total,
+      taxesAndFees = _ref3.taxesAndFees,
+      nights = _ref3.nights,
+      occupancies = _ref3.occupancies;
 
-  if (taxesAndFees && price) {
+  if (taxesAndFees && total) {
     return Math.floor(taxesAndFees.reduce(function (acc, item) {
       var tax = 0;
 
-      if (item.unit === 'percentage') {
-        tax = price / 100 * item.value;
+      if (item.type === 'stay') {
+        tax = perStay({
+          total: total,
+          unit: item.unit,
+          value: item.value,
+          perPerson: item.per_person,
+          occupancies: occupancies
+        });
       } else {
-        tax = item.value * numberOfNights;
+        tax = perNight({
+          total: total,
+          unit: item.unit,
+          value: item.value,
+          nights: nights,
+          perPerson: item.per_person,
+          occupancies: occupancies
+        });
       }
 
       return acc + tax;

index.d.ts

@@ -18,8 +18,17 @@ declare module "@luxuryescapes/lib-global" {
   interface TaxesAndFees {
     name: string;
     unit: "percentage" | "amount";
+    type: "night" | "stay";
+    per_person: boolean;
     value: number;
   }
+
+  interface Occupants {
+    adults: number;
+    children?: number;
+    infants?: number;
+    childrenAge?: Array<number>;
+  }
 
   export type LeHotelOfferType =
     | "hotel"
@@ -52,9 +61,15 @@ declare module "@luxuryescapes/lib-global" {
       getFromPackages: (packages: Array<object>, offerType: string, holidayTypes: Array<string>) => string;
     };
     pricing: {
-      calculateTaxAmount: ({ price, taxesAndFees, numberOfNights }: { price: number, taxesAndFees: TaxesAndFees[], numberOfNights: number }) => number;
+      calculateTaxAmount: ({ total, taxesAndFees, nights, occupancies }: { total: number, taxesAndFees: TaxesAndFees[], nights: number, occupancies?: Occupants[] }) => number;
     };
   };
+  const occupancy: {
+    get: (occupancy: string | string[]) => Occupants[];
+    parse: (occupancy: string) => Occupants;
+    match: (occupancy: string) => boolean;
+    toString: (occupancy: Occupants) => string;
+  };
   const currency: {
     addDollarType: (
       formattedAmount: string,

src/index.js

@@ -3,4 +3,5 @@ module.exports = {
   flights: require('./flights'),
   offer: require('./offer'),
   currency: require('./currency'),
+  occupancy: require('./occupancy'),
 }

src/occupancy/index.js

@@ -0,0 +1,62 @@
+const match = occupancy => !(occupancy.match(/^[0-9]{1,2}-[0-9]{1,2}-[0-9]{1,2}?$/gi) == null) ||
+  !(occupancy.match(/^[0-9]{1,2}(-[0-9]{1,2}?(,[0-9]{1,2})*)?$/ig) == null)
+
+const parse = (occupancy) => {
+  if (occupancy.match(/^[0-9]{1,2}(-[0-9]{1,2}?(,[0-9]{1,2})*)?$/ig)) {
+    const [adults, ages] = occupancy.split('-')
+    let children = 0
+    let childrenAges = []
+
+    if (ages) {
+      childrenAges = ages.split(',').map(x => Number(x))
+      children = childrenAges.length
+    }
+
+    return {
+      adults: Number(adults),
+      children: Number(children),
+      infants: 0,
+      childrenAges,
+    }
+  } else {
+    const [adults, children, infants] = occupancy.split('-')
+
+    return {
+      adults: Number(adults),
+      children: Number(children),
+      infants: Number(infants),
+      childrenAges: [],
+    }
+  }
+}
+
+const toString = occupancy => {
+  if (occupancy.childrenAges && occupancy.childrenAges.length) {
+    return `${occupancy.adults}-${occupancy.childrenAges.join(',')}`
+  } else {
+    return `${occupancy.adults}-${occupancy.children}-${occupancy.infants}`
+  }
+}
+
+const get = occupancy => {
+  let occupancies = []
+
+  if (typeof occupancy === 'string') {
+    if (occupancy.split(',').every(occupancy => !!occupancy.match(/^[0-9]{1,2}-[0-9]{1,2}-[0-9]{1,2}?$/gi))) {
+      occupancies = occupancy.split(',').map(parse)
+    } else {
+      occupancies = [occupancy].map(parse)
+    }
+  } else {
+    occupancies = occupancy.map(parse)
+  }
+
+  return occupancies
+}
+
+module.exports = {
+  parse: parse,
+  get: get,
+  match: match,
+  toString: toString,
+}

src/offer/pricing.js

@@ -1,12 +1,64 @@
-const calculateTaxAmount = ({ price, taxesAndFees, numberOfNights }) => {
-  if (taxesAndFees && price) {
+const countOfMembers = (occupancies) => {
+  return (occupancies || []).reduce((acc, occupancy) => {
+    return acc + occupancy.adults + (occupancy.children || 0) + (occupancy.infants || 0)
+  }, 0) || 2
+}
+
+const perNight = ({ total, unit, value, nights, perPerson, occupancies }) => {
+  const members = perPerson ? countOfMembers(occupancies) : 1
+
+  if (unit === 'percentage') {
+    return ((total / 100) * value) * members
+  } else {
+    return (value * nights) * members
+  }
+}
+
+const perStay = ({ total, unit, value, perPerson, occupancies }) => {
+  const members = perPerson ? countOfMembers(occupancies) : 1
+
+  if (unit === 'percentage') {
+    return ((total / 100) * value) * members
+  } else {
+    return value * members
+  }
+}
+
+/**
+ * Extract and validate the offer and offer package for an order
+ *
+ * interface TaxesAndFees {
+ *   name: string;
+ *   unit: "percentage" | "amount";
+ *   type: "night" | "stay";
+ *   per_person: boolean;
+ *   value: number;
+ * }
+ *
+ * interface Occupants {
+ *   adults: number;
+ *   children?: number;
+ *   infants?: number;
+ *   childrenAge?: Array<number>;
+ * }
+ *
+ * @param {object} params - All params
+ * @param {number} params.total - The total amount of booking period
+ * @param {Array<TaxesAndFees>} params.taxesAndFees - The orders currency code
+ * @param {number} params.nights - The number of nights
+ * @param {Array<Occupants>} params.occupancies - The occupancies
+ * @returns {number} Sum of taxes and fees
+ */
+const calculateTaxAmount = ({ total, taxesAndFees, nights, occupancies }) => {
+  if (taxesAndFees && total) {
     return Math.floor(
       taxesAndFees.reduce((acc, item) => {
         let tax = 0
-        if (item.unit === 'percentage') {
-          tax = (price / 100) * item.value
+
+        if (item.type === 'stay') {
+          tax = perStay({ total, unit: item.unit, value: item.value, perPerson: item.per_person, occupancies })
         } else {
-          tax = item.value * numberOfNights
+          tax = perNight({ total, unit: item.unit, value: item.value, nights, perPerson: item.per_person, occupancies })
         }
 
         return acc + tax