Bloomon has a production facility that produces bouquets. We simplified how the real one -- located in Aalsmeer -- works, for the purposes of this Code Challenge:
- It takes bouquet specs as input.
- It takes flowers to fill its inventory as input.
- It produces bouquets of different designs and sizes based on bouquet specs as output. The flowers arrive at the facility one-by-one. They are stored there until there are sufficient flowers to create a bouquet, at which point a bouquet is immediately produced.
Your job is to create an application that takes the bouquet specs (the designs) and a stream of flowers as inputs, and produces a stream of bouquets as an output. The application must be a command line application that uses standard input and output. Use the supplied scaffold project to get up and running quickly, and feel free to add, remove or modify any of the files as needed.
The solution should be submitted in a GitHub / GitLab repository, with full source code and configuration files to run on Node.js version 8 or higher. Please add "BloomonDev" as a collaborator to have access to the repo.
Completing the challenge should take between 2 - 4 hours, and we expect a submission in the next couple of days. If you see you're exceeding the 4 hours, you should submit your solution as-is, with a short explanation of what is left and how you would finish the challenge.
- Flower species is indicated by a single, lowercase letter: a - z .
- Flower size is indicated by a single, uppercase letter: L (large) and S (small).
example: a flower: rL
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Bouquet name is indicated by a single, uppercase letter: A - Z .
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Bouquet size is indicated by a single, uppercase letter: L (large) and S (small).
-
A bouquet spec is a single line of characters with the following format:
<bouquet name><bouquet size><flower 1 quantity><flower 1 species><f.2 quantity><f.2 species>...<f.N quantity><f.N species>
example: AL8d10r5t
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The bouquet spec format includes a bouquet size but no flower sizes. This is because large bouquets are only made from large flowers, and small bouquets are only made from small flowers.
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Flower species are listed in alphabetic order and only appear once in a bouquet spec.
-
Flower quantities are always greater than 0.
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The input stream will follow this structure:
bouquet spec1
bouquet spec2
<empty line>
flower1
flower2
flower3
...
example:
AS3a4b6k
AL8d10r5t
aS
aS
bL
rL
tS
...
- Output should be the full bouquet spec every time a bouquet can be created.
example: AL8d7l10r5t
You can find a sample input file in the scaffold project under /sample.
Note: In case you want to show off and you haven't spent the 4 hours yet you can also try to tackle this one!
Our storage facility has a maximum capacity: the facility cannot store more than 256 flowers at any given time. If the facility storage is full and the next flower cannot be processed, the application should stop with an exit code of 1 and a corresponding error message.
This project provides a scaffold that you may use to begin the challenge. Feel free to use the suggested files and code, but also feel at liberty to change anything as you see fit.
The entry point can be found at src/index.js where an input/output interface has been provided using Readline.
In src/models, we've included some classes to serve as data structures to represent bouquet specs and flowers.
Install dependencies npm i and run npm start.
Run tests with npm test.
Run linter with npm run lint.
Are you done? Great!! Please let challenge@bloomon.nl know that you are ready, and we will help you with next steps. Thank you for participating in our code challenge!