A geek trust problem solved using clojure. I have tried to solutionize the problem as a production app which can be extended easily in the future if required. Example if there are multiple rulers, more kingdoms, auditlog of messages need to be there etc.

There are six kingdoms that are created as the inital setup, each of which will have an emblem and an animal associated with it. Kingdom entity will receive a message from the domain which will be decoded to figure out if it wants to be an ally to king shan.

For every message that is receieved from the cli a message entity will be created. A very crude language processing will be done on it to determine its properties. This entity will contain the kingdom-name, type, subtype and the message for that particular kingdom. Messages will have a type based on whether its a question or an action. question will have no kingdom.

question messages will be determined by a very crude language processing, essentially checking for certain keywords. The questions will have a subtype, which will be one of these values :who-is-ruler? :allies-of-ruler?

action messages will be used to figure whether the kingdom will become an ally to the aspiring ruler.

The core logic of the problem is going to be dealt here. It will receive a message from the CLI which will be converted to a message entity. If the type is a :question we'll either forward the message to the kingdom to process or if the subtype is :who-is-ruler? we'll loop over each kingdom and figure out if king shan became a ruler or not. Or if the subtype is :allies-of-ruler? we'll loop over eack kingdom and figure out who all are allies of king shan.

This will be initalized by the core to start listening to stdin. It will read each line from stdin and pass it on to the domain. The domain will send back a reply for each question message. The reply will be a string, which the cli will output.

We will persist the kindom data in the memory as a list. Entity will be interacting with this layer.

After cloning the repo in the terminal run the following:

brew install boot-clj
boot run

https://github.com/sinujohn91/golden-crown