Use a Cloud Storage API to produce a report detailing the "weights" of the files of a user, categorised by file type. The basic weight of a file is equal to it size in KB multiplied by a "specific gravity" based on the type. The report should list for each category (if any file present) the number of files, the type, the weight of all the files of the same category (including the gravity) plus two extra lines showing the total weight of all files and the total "gravity displacement", which is the the difference between the total weights including gravity and the total ideal weights (1).
File types are Songs, Videos, Documents (office, openoffice,...), Text, Binaries, Others Gravity is 1.1 for Documents, 1.4 for Videos, 1.2 for Songs, 1 for the rest any other file types, with the results rounded up to the upper 0.05. A fixed gravity of 100 is added to Text files.
Provide a working solution to the problem, at least for the scenarios provided, deployed on the internet (i.e. Heroku) and source code on Github. The end user should be able to login with its credentials and get its report using a simple web page. Please note that input / output or persistency are not the primary goals of this test, concentrate your efforts on a good design. TDD is expected, the balance between server side development and client side development is up to you.
My Files (name / size in MB)
wombats.avi 10.0
crazy-dog.avi 22.0
backinblack.mp3 3.5
study1.odt 1.1
study2.docx 2.0
firefox.bin 220.0
readme.txt 0.1
2 Videos, 44.8
1 Song 4.2
2 Documents 3.41
1 Binary 220.0
1 Text 100.1
Total: 372.51
Add. gravity: 113.81
- Ruby
- RSpec
- Git(Hub)
- Sinatra
- Shotgun
- Heroku
You will need to create a .env file in the root of the
directory and include the following variables.
export TEST_USERNAME=username
export TEST_PASSWORD=password
export WORKSHARE_API_KEY=apikey
To run the application run shotgun and visit
localhost:9393 in the browser. It is also live on
Heroku, just visit http://watch-ur-weight.herokuapp.com.