GATEKEEPER

Problem background

In your first day as developer you are consulting for a customer who owns a textile company named Textile.Co. The company has 1000 employees.

When a new employee joins Textile.Co, the employee receives a new BADGE card imprinted with a unique barcode, each employee has a different BADGE card.

Textile.Co bought a punch card machine that can send a HTTP’s JSON POST payloads to a server and wants to use it to track arrivals and departures of employees. Working hours for employees are from 9 am to 6 pm, Monday to Friday.

Installation

Prerequisites

• Ruby 2.3.0
• Rails 5.0.0.1
• PostgreSQL

Instructions

• Clone repository $ git clone git@github.com:vegg89/gatekeeper.git
• $ bundle install
• Configure your database config\database.yml
• Create your database rails db:create
• Run migrations rails db:migrate
• Run seed rails db:seed
• Run server rails server
• Visit http://localhost:3000

Test data

The seed contains the following test data:

• An Admin user
  • email: admin@textilco.com
  • password: 12345678
• Some entries for badge 1234567890 for November period

The API

The project comes with an simple API that register the entries

Check-in badge

• Method: POST
• Path: /api/v1/entries/:badge_number/in
• Headers:
  • Content-Type: application/json
• Body:

{
  "datetime": "2016-11-15 09:00:32.000"
}

Check-out badge

• Method: POST
• Path: /api/v1/entries/:badge_number/out
• Headers:
  • Content-Type: application/json
• Body:

{
  "datetime": "2016-11-15 09:00:32.000"
}

Features

Assumptions

• Reports only show entries of the current month(current period).
• Payday is the last day of month
• There is no time tolerance.
• There's only one check-in and check-out per day.

* Employee report

Your customer’s employees are complaining that the reported hours for a given period are wrong, so your customer wants to give each of his employees the opportunity to review their current period working hours report 3 days before the paycheck day.

Three point estimation(Confidence 68%)

• BC = 2h
• ML = 3h
• WC = 4h
• I need from 2.6 to 3.3 hours to finish the task

* Absences report

Your customer wants to know which employees are not coming to work at all.

Three point estimation(Confidence 68%)

• BC = 1h
• ML = 2h
• WC = 3h
• I need from 1.6 to 2.3 hours to finish the task

* Delays report

Your customer wants to be able to see which employees are arriving late.

Three point estimation(Confidence 68%)

• BC = 1h
• ML = 2h
• WC = 3h
• I need from 1.6 to 2.3 hours to finish the task