Reflactor

pos_v1/main/main.js

@@ -1,3 +1,135 @@
 'use strict';
 
-//TODO: 请在该文件中实现练习要求并删除此注释
+function printReceipt(tags) {
+  //计算数量
+  let typeAndNumberOfItems = calculatingTypeAndNumber(tags);
+  const allItems = loadAllItems();
+  let itemsDetails = getItemsDetails(typeAndNumberOfItems, allItems);
+  const promotions = loadPromotions();
+  itemsDetails = getPromotion(itemsDetails, promotions);
+  itemsDetails = countItem(itemsDetails);
+  itemsDetails = countAllItems(itemsDetails);
+   print(itemsDetails);
+
+}
+
+//计算数量
+function calculatingTypeAndNumber(tags) {
+
+  let typeAndNumberOfItems = [];
+
+  for (let barcode of tags) {
+    let tempId = splitItem(barcode);
+    let Iscontain = containId(tempId, typeAndNumberOfItems);
+    if (!Iscontain) {
+      typeAndNumberOfItems.push({
+        code: tempId.code,
+        number: tempId.number
+      });
+    }
+  }
+  return typeAndNumberOfItems;
+}
+
+function getItemsDetails(typeAndNumberOfItems, allItems) {
+  // for(let det of deatil)
+  for (let typeAndNumberOfItem of typeAndNumberOfItems) {
+    for (let item of allItems) {
+      if (typeAndNumberOfItem.code === item.barcode) {
+        typeAndNumberOfItem.name = item.name;
+        typeAndNumberOfItem.unit = item.unit;
+        typeAndNumberOfItem.price = item.price;
+      }
+    }
+  }
+  return typeAndNumberOfItems;
+}
+
+function getPromotion(itemsDetails, Promotions) {
+  let barcode = Promotions[0].barcodes;
+  for (let tempitem of itemsDetails) {
+    for (let i = 0; i < barcode.length; i++) {
+      if (tempitem.code === barcode[i]) {
+        tempitem.status = 'Promotion';
+
+      }
+    }
+  }
+  return itemsDetails;
+}
+
+function countItem(itemsDetails) {
+  for (let it of itemsDetails) {
+    let mycount;
+    if (it.hasOwnProperty('status')) {
+      mycount = (parseInt(it.number / 3) * 2 + it.number % 3) * it.price;
+      it.count = mycount;
+    }
+    else {
+      mycount = it.number * it.price;
+      it.count = mycount;
+    }
+  }
+  return itemsDetails;
+}
+
+function countAllItems(itemsDetails) {
+  let count = 0;
+  let countfanal = 0;
+  for (let it of itemsDetails) {
+    count = count + it.count;
+    countfanal = it.number * it.price + countfanal;
+  }
+
+  itemsDetails.push({
+    finalcount: count,
+    saved: countfanal - count
+  })
+  return itemsDetails;
+}
+
+
+function print(item) {
+  let final = '***<没钱赚商店>收据***\n';
+  for (let i = 0; i < item.length - 1; i++) {
+    final = final + '名称：' + item[i].name + '，数量：' + item[i].number + '' + item[i].unit + '，单价：' + parseFloat(item[i].price).toFixed(2) + '(元)，小计：' + parseFloat(item[i].count).toFixed(2) + '(元)' + '\n';
+  }
+  final = final + '----------------------\n';
+  final = final + '总计：' + parseFloat(item[item.length - 1].finalcount).toFixed(2) + '(元)' + '\n';
+  final = final + '节省：' + item[item.length - 1].saved.toFixed(2) + '(元)' + '\n';
+  final = final + '**********************';
+
+  final = `${final}`;
+  console.log(final);
+}
+
+
+function splitItem(barcode) {
+  let tempId = {};
+  if (barcode.indexOf('-') >= 0) {
+    tempId = {
+      code: barcode.split('-')[0],
+      number: parseFloat(barcode.split('-')[1])
+    }
+  }
+  else {
+    tempId = {
+      code: barcode,
+      number: 1
+    }
+  }
+  return tempId;
+}
+
+function containId(tempId, typeAndNumberOfItems) {
+  let isContain=false;
+  if (typeAndNumberOfItems.length !== 0) {
+    for (let temp of typeAndNumberOfItems) {
+      if (temp.code == tempId.code) {
+        temp.number = temp.number + tempId.number;
+        isContain=true;
+      }
+  }
+  }
+  return isContain;
+}

pos_v1/test/main-test.js

@@ -1,8 +1,8 @@
 'use strict';
 
-describe('pos', () => {
 
-  it('should print text', () => {
+describe('Function calculatingTypeAndNumber test',()=> {
+  it('it should have same typeAndNumberOfItems', () => {
 
     const tags = [
       'ITEM000001',
@@ -15,9 +15,131 @@ describe('pos', () => {
       'ITEM000005-2',
     ];
 
+    let typeAndNumberOfItems = calculatingTypeAndNumber(tags);
+    const result=[
+      {code: "ITEM000001", number: 5},
+    {code: "ITEM000003", number: 2.5},
+      {code: "ITEM000005", number: 3}
+  ];
+    expect(typeAndNumberOfItems).toEqual(result);
+  });
+});
+
+
+describe('Function getItemsDetails test',()=> {
+  it('it should have same ItemsDetails', () => {
+
+    const typeAndNumberOfItems=[
+      {code: "ITEM000001", number: 5},
+      {code: "ITEM000003", number: 2.5},
+      {code: "ITEM000005", number: 3}
+    ];
+    const allItems=loadAllItems();
+    const itemsDetails = getItemsDetails(typeAndNumberOfItems, allItems);
+    const result=[
+      {code: "ITEM000001", number: 5, name: "雪碧", unit: "瓶", price: 3}
+    ,
+    {code: "ITEM000003", number: 2.5, name: "荔枝", unit: "斤", price: 15}
+   ,
+    {code: "ITEM000005", number: 3, name: "方便面", unit: "袋", price: 4.5}
+  ]
+    expect(itemsDetails).toEqual(result);
+  });
+});
+
+
+describe('Function getPromotion test',()=> {
+  it('it should have same ItemsDetails', () => {
+    const items=[
+      {code: "ITEM000001", number: 5, name: "雪碧", unit: "瓶", price: 3}
+      ,
+      {code: "ITEM000003", number: 2.5, name: "荔枝", unit: "斤", price: 15}
+      ,
+      {code: "ITEM000005", number: 3, name: "方便面", unit: "袋", price: 4.5}
+    ]
+    const promotions=loadPromotions();
+    const itemsDetails = getPromotion(items, promotions);
+    const result=[
+      {code: "ITEM000001", number: 5, name: "雪碧", unit: "瓶", price: 3,status:'Promotion'}
+      ,
+      {code: "ITEM000003", number: 2.5, name: "荔枝", unit: "斤", price: 15}
+      ,
+      {code: "ITEM000005", number: 3, name: "方便面", unit: "袋", price: 4.5,status:'Promotion'}
+    ]
+    expect(itemsDetails).toEqual(result);
+  });
+});
+
+
+describe('Function countItem test',()=> {
+  it('it should have same ItemsDetails', () => {
+    const items=[
+      {code: "ITEM000001", number: 5, name: "雪碧", unit: "瓶", price: 3,status:'Promotion'}
+      ,
+      {code: "ITEM000003", number: 2.5, name: "荔枝", unit: "斤", price: 15}
+      ,
+      {code: "ITEM000005", number: 3, name: "方便面", unit: "袋", price: 4.5,status:'Promotion'}
+    ]
+     const  itemsDetails = countItem(items);
+    const result=[
+      {code: "ITEM000001", number: 5, name: "雪碧", unit: "瓶", price: 3,status:'Promotion',count: 12}
+      ,
+      {code: "ITEM000003", number: 2.5, name: "荔枝", unit: "斤", price: 15,count: 37.5}
+      ,
+      {code: "ITEM000005", number: 3, name: "方便面", unit: "袋", price: 4.5,status:'Promotion',count: 9}
+    ]
+    expect(itemsDetails).toEqual(result);
+  });
+});
+
+describe('Function countAllItem test',()=> {
+  it('it should have same ItemsDetails', () => {
+    const items=[
+      {code: "ITEM000001", number: 5, name: "雪碧", unit: "瓶", price: 3,status:'Promotion',count: 12}
+      ,
+      {code: "ITEM000003", number: 2.5, name: "荔枝", unit: "斤", price: 15,count: 37.5}
+      ,
+      {code: "ITEM000005", number: 3, name: "方便面", unit: "袋", price: 4.5,status:'Promotion',count: 9}
+    ]
+    const   itemsDetails = countAllItems(items);
+    const result=[
+      {code: "ITEM000001", number: 5, name: "雪碧", unit: "瓶", price: 3,status:'Promotion',count: 12}
+      ,
+      {code: "ITEM000003", number: 2.5, name: "荔枝", unit: "斤", price: 15,count: 37.5}
+      ,
+      {code: "ITEM000005", number: 3, name: "方便面", unit: "袋", price: 4.5,status:'Promotion',count: 9},
+      {
+        finalcount: 58.5,
+        saved: 7.5
+      }
+    ]
+    expect(itemsDetails).toEqual(result);
+  });
+});
+
+
+
+
+
+describe('Function print test', () => {
+
+  it('it should have same text', () => {
+
+    const items=[
+      {code: "ITEM000001", number: 5, name: "雪碧", unit: "瓶", price: 3,status:'Promotion',count: 12}
+      ,
+      {code: "ITEM000003", number: 2.5, name: "荔枝", unit: "斤", price: 15,count: 37.5}
+      ,
+      {code: "ITEM000005", number: 3, name: "方便面", unit: "袋", price: 4.5,status:'Promotion',count: 9},
+      {
+        finalcount: 58.5,
+        saved: 7.5
+      }
+    ]
+
     spyOn(console, 'log');
 
-    printReceipt(tags);
+    print(items);
 
     const expectText = `***<没钱赚商店>收据***
 名称：雪碧，数量：5瓶，单价：3.00(元)，小计：12.00(元)