samsonnguyen / order_my_lunch

Order My Lunch

Simple program that will order you the best lunch!

Install

Ensure we install dependencies

bundle install

Usage

Run as a script

Edit the parameters using config/example.yml then

rake run

or

ruby bin/order_my_lunch_runner.rb

Run specs

rake spec

Background

Given

• A list of restaurants, each capable or producing only a limited amount of stock daily
• restaurants each have a comparative rating. A 5 star restaurant is better than a 3 star restaurant
• A group/team of people to feed for lunch. Some with dietary restrictions such as vegetarian, nut free, gluten free
• Some restaurants can use their capacity for the day to fulfill some dietary restrictions. These dishes still count towards the maximum dailry capacity.

We want to find the optimum lunch order such that:

• We order from the best restaurants first
• All team members have a meal (if possible)
• Dietary restrictions are met (wherever possible)

Assumptions:

• People without a dietary restriction can have a dietary restricted meal (i.e. If you do not have restriction, you do not mind having a gluten free meal)
• If it is impossible to satisfy a restriction based on the list of restaurants and their stock, we choose the "normal" meal as an alternative (configurable via :allow_alternative parameter)

Params

Restaurants

Parameter	Description
name	Name of the restuarant
rating	Rating out of five
max_capacity	Maximum daily quota
menu	List of restricted items and their maximum amounts for the day

Team

Parameter	Description
total	Number of team members
details	List of restricted items and the number of people requesting this option

Base Params

Parameter	Description
allow_alternatives	In the event it is impossible to fulfill all dietary restrictions, fall back to normal meals to ensure all members have a lunch