Parking Lot

About Problem

To design a parking lot system with ability:

• Automated ticketing.

• Documenting the vehicle regtistration number (car number).

• Allocating an available parking slot to the car before actually handing over a ticket to the driver.

• Calculating total parking charge. Charge applicable is $10 for first 2 hours and $10 for every additional hour.

Pre requisites

The source code for this project is written using Node.js. Make sure you have Node.js installed on your computer before running this application, if not please install Node.js from nodejs.org.

To check if you have Node.js and NPM installed by running simple commands to see what version of each is installed:

• Test Node.js: To see if Node is installed, type node -v in Terminal. This should print the version number so you’ll see something like this v10.16.0.

• Test NPM. To see if NPM is installed, type npm -v in Terminal. This should print the version number so you’ll see something like this 6.9.0.

Note: Node installer installs both Node.js and npm on your system.

How to run?

This is a console application written in Node.js. This can be run in two modes:

1. Interactive Mode: An interactive terminal based shell where commands can be typed in to perform different actions.

2. File Mode: It accepts a filename as a parameter at the terminal and read the commands from that file.

Quick Start

Proceed to the steps below only if you've Node.js installed. If not, please refer pre requisites section.

For Interactive Mode

Open terminal and navigate (cd) to this folder and type the following commands:

1. npm install
2. npm start

For File Mode

Open terminal and type:

1. bin/setup
2. bin/parking_lot <path_to_file.txt>

Note: You can use a provided sample input file inside functional_spec/fixtures/file_input.txt .

List of User Commands

Users can interact with the Parking Lot system via a following simple set of commands which produce a specific output:

• create_parking_lot {{CAPACITY}}: create_parking_lot 6 will create a parking lot with 6 slots.

• park {{CAR NUMBER}}: park KA-01-HH-1234 will allocate the nearest slot from entry gate.

• leave {{CAR NUMBER}} {{HOURS}}: leave KA-01-HH-3141 4 will free the slot occupied by car with registration number KA-01-HH-3141 and will return parking charge.

• status: status will display cars and their slot details

Slot No.    Registration No.
1    KA-01-HH-1234
2    KA-01-HH-9999
3    KA-01-BB-0001
4    KA-01-HH-7777
5    KA-01-HH-2701

• exit: exit will quit the application and return to the console.

NOTE: Any commands which are not mentioned above will throw an error: <INPUT> is an invalid command