Test 9 30 vector

.gitignore

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+# These are some examples of commonly ignored file patterns.
+# You should customize this list as applicable to your project.
+# Learn more about .gitignore:
+#     https://www.atlassian.com/git/tutorials/saving-changes/gitignore
+
+# Node artifact files
+node_modules/
+dist/
+
+# Compiled Java class files
+*.class
+
+# Compiled Python bytecode
+*.py[cod]
+
+# Log files
+*.log
+
+# Package files
+*.jar
+
+# Maven
+target/
+dist/
+
+# JetBrains IDE
+.idea/
+
+# Unit test reports
+TEST*.xml
+
+# Generated by MacOS
+.DS_Store
+
+# Generated by Windows
+Thumbs.db
+
+# Applications
+*.app
+*.exe
+*.war
+
+# Large media files
+*.mp4
+*.tiff
+*.avi
+*.flv
+*.mov
+*.wmv
+

AboutProject.txt

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+What does this project do?

README.md

@@ -1,99 +1,24 @@
-# Bunk Dev Test - Holiday Expenses Calculator
-
-A code challenge for new developers applying to work at Bunk.
-
-## Challenge
-
-The Bunk team are all going on a work holiday but they need an app to keep a track of expenses and who owes money to who at the end of the trip.
-
-## Technologies To Use
-
-- TypeScript preferably, (JavaScript if not familiar with TypeScript)
-- Angular 14+
-- Node 14+ + Web Framework, i.e. Express
-- Backend tests (ideally with Jest)
-- E2E tests (ideally with Cypress)
-- Git + Github for version control
-
-## Challenge Requirements
-
-- The client-side should be built using Angular
-- The client-side should contain a table showing a expenses with the following fields (per traveller):
-  - Name
-  - Expense
-- You should be able to add an expense to the table (not persisted).
-- The page should then have a "Settle Up" button.
-- When the "Settle Up" button is clicked, it will make a request to the server to calculate how much each traveller needs to pay out to any other traveller
-- The server-side should be a NodeJS Web API.
-- The NodeJS server-side logic should be arranged into a service.
-- There is no need for a database.
-
-### Bonus Requirements
-
-- If you have time, you should write tests.
-- Linting is appreciated, ideally with prettier.
-- Tidy, well documented functions are great.
-
 ## Installation
 
 Run `npm run install-all` in the project root.
 
-This script will kick off `npm install` in both the Express server (`api`) and the Angular application (`web`).
-
 ## Quick Start
 
-Run `npm run start` from the project root. This script will start both the Express server, and the Angular application.
+Run `npm run start` from the project root.
 
 ## Running Tests
 
 Run server-side tests with `npm test` from the project root.
 Run E2E tests with the `npm run e2e` command from project root.
 
-## API Reference
-
-### Calculate Payouts (`POST /payouts`)
-
-**Endpoint URL**
-`http://localhost:3000/payouts`
-
-**JSON Body Parameters**
-
-`expenses` - array : Specifies the expenses you want to calculate a payout on.
-
-`expenses.name` - string : The name of the person who incurred the expense.
-
-`expenses.amount` - number : The amount of the expense incurred.
-
-**Example Request**
-
-```shell script
-curl --location --request POST 'localhost:3000/payouts' \
---header 'Content-Type: application/json' \
---data-raw '{
-	"expenses": [
-		{ "name": "Adriana", "amount": 5.75 },
-		{ "name": "Adriana", "amount": 5.75 },
-		{ "name": "Bao", "amount": 12 }
-	]
-}'
-```
-
-**Example Response**
+## Usage of Project
 
-```json
-{
-  "total": 23.5,
-  "equalShare": 11.75,
-  "payouts": [
-    {
-      "owes": "Adriana",
-      "owed": "Bao",
-      "amount": 0.25
-    }
-  ]
-}
-```
+- Open browser and go to "http://localhost:4200/".
+- You can add traveller name and expense of him/her. If you click add button, traveller detail will be shown in table. If you click traveller detail row in table, that detail will be removed from table.
+- If you click "Settle Up" button, you will be navigated to other page and you can see payouts details.
+- You can also can be navigated to list of expense page and add or remove traveller details using header's navigation buttons.
 
-## Submitting
+## Functionality of Project
 
-When you have completed the test, please email a link to your public Github Repository to [email protected] and [email protected].
+If you send traveller's details to server, payouts details will be created with time complexity(n log n) and sent to cient side.
+(n: number of travellers)

api/.gitignore

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+# These are some examples of commonly ignored file patterns.
+# You should customize this list as applicable to your project.
+# Learn more about .gitignore:
+#     https://www.atlassian.com/git/tutorials/saving-changes/gitignore
+
+# Node artifact files
+node_modules/
+dist/
+
+# Compiled Java class files
+*.class
+
+# Compiled Python bytecode
+*.py[cod]
+
+# Log files
+*.log
+
+# Package files
+*.jar
+
+# Maven
+target/
+dist/
+
+# JetBrains IDE
+.idea/
+
+# Unit test reports
+TEST*.xml
+
+# Generated by MacOS
+.DS_Store
+
+# Generated by Windows
+Thumbs.db
+
+# Applications
+*.app
+*.exe
+*.war
+
+# Large media files
+*.mp4
+*.tiff
+*.avi
+*.flv
+*.mov
+*.wmv
+

api/__tests__/payoutService.spec.ts

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+const { mapPayouts } = require('../services/payoutService');
+
+describe('Payouts Reliability', () => {
+  test('Should calculate correct payouts', () => {
+    const expenses = [
+      { name: "Adriana", amount: 5.75 },
+      { name: "Adriana", amount: 5.75 },
+      { name: "Bao", amount: 12 }
+    ];
+    const result = mapPayouts(expenses);
+    expect(result).toEqual({
+      total: 23.5,
+      equalShare: 11.75,
+      payouts: [
+        {
+          owes: "Adriana",
+          owed: "Bao",
+          amount: 0.25
+        }
+      ]
+    });
+  });
+
+  test('Should calculate correct payouts with more complex input', () => {
+    const expenses = [
+      { "name": "AAA", "amount": 200 },
+      { "name": "BBB", "amount": 200 },
+      { "name": "CCC", "amount": 150 },
+      { "name": "DDD", "amount": 270 },
+      { "name": "EEE", "amount": 250 },
+      { "name": "FFF", "amount": 150 },
+      { "name": "GGG", "amount": 180 }
+    ];
+    const result = mapPayouts(expenses);
+    expect(result).toEqual({
+      total: 1400,
+      equalShare: 200,
+      payouts: [
+        {
+          owes: "CCC",
+          owed: "DDD",
+          amount: 50
+        },
+        {
+          owes: "FFF",
+          owed: "DDD",
+          amount: 20
+        },
+        {
+          owes: "FFF",
+          owed: "EEE",
+          amount: 30
+        },
+        {
+          owes: "GGG",
+          owed: "EEE",
+          amount: 20
+        }
+      ]
+    });
+  });
+
+  test('Should throw error for invalid expenses', () => {
+    const expenses = 'invalid';
+    expect(() => mapPayouts(expenses)).toThrow('Invalid expenses');
+  });
+});

api/__tests__/payouts.route.spec.ts

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+const request = require('supertest');
+const app = require('../index');
+
+describe('Payouts Route', () => {
+  test('POST /payouts should return a valid response', async () => {
+    const expenses = [
+      { name: "Adriana", amount: 5.75 },
+      { name: "Adriana", amount: 5.75 },
+      { name: "Bao", amount: 12 }
+    ];
+
+    const response = await request(app)
+      .post('/payouts')
+      .send({ expenses })
+      .expect(200);
+
+    expect(response.body).toEqual({
+      total: 23.5,
+      equalShare: 11.75,
+      payouts: [
+        {
+          owes: "Adriana",
+          owed: "Bao",
+          amount: 0.25
+        }
+      ]
+    });
+  });
+
+  test('Should return 400 for invalid expenses', async () => {
+    const expenses = 'invalid';
+    await request(app)
+      .post('/payouts')
+      .send({ expenses })
+      .expect(400);
+  });
+});

api/index.ts

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+import { Request, Response, NextFunction } from 'express';
+
+const express = require('express');
+const router = require('./routes/api/payouts.route');
+
+let cors = require('cors');
+let bodyParser = require('body-parser');
+
+const app = express();
+app.use(bodyParser.json());
+app.use(bodyParser.urlencoded({
+  extended: true
+}));
+app.use(cors());
+
+app.use('/payouts', router);
+
+// PORT
+const port = process.env.PORT || 3000;
+const server = app.listen(port, () => {
+  console.log('Connected to port ' + port)
+})
+
+// 404 Error
+app.use((req: Request, res: Response, next: NextFunction) => {
+  res.status(404).send('Error 404!')
+});
+
+app.use(function (err: any, req: Request, res: Response, next: NextFunction) {
+  console.error(err.message);
+  if (!err.statusCode) err.statusCode = 500;
+  res.status(err.statusCode).send(err.message);
+});
+
+module.exports = app;

api/jest.config.js

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+module.exports = {
+  preset: 'ts-jest',
+  testEnvironment: 'node',
+  moduleNameMapper: {
+    '^@/(.*)$': '<rootDir>/src/$1',
+  },
+  testMatch: [
+    '<rootDir>/__tests__/**/*.spec.ts',
+  ],
+};

api/models/payout.interface.ts

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+export interface Payout {
+  owes: string;
+  owed: string;
+  amount: number;
+}
+
+export interface Expense {
+  name: string;
+  amount: number;
+  status: string;
+}
+
+export interface PayoutResponse {
+  total: number;
+  equalShare: number;
+  payouts: Payout[];
+}
+
+export type Traveller = Record<string, number>;