cosmin-harangus / scilla-open-block-school Goto Github PK

The Request contract will contain variables for the following:

• Topic of the request
• List of teachers that applied
• Selected teacher
• Status of the request
• Amount raised by students
• Student balances
• Student votes
• Deadline until the funds are returned to students

Students should be able to support and join a request for knowledge by paying a specific amount to the Request contract.

Define a method named Join() that is payable and records the amount of coins sent by every student.
This method should be secure and add the new student address to the list with his balance if he is new or update him amount if he has already paid.

The student should also be able to retreat their participation by calling a Leave() method that sends back his coins from the contract and removes him from the list of enrolled students and votes if the a teacher has not been selected yet.

As a teacher I should be able to apply as a teacher on an existing request by calling a Apply(name, url) method.
The teacher will be added to the list of joined teachers that are waiting to be voted on by the enrolled students.
The teacher can choose to cancel his application by calling the CancelApplication() method.

Students must each vote for the teachers that they want to be selected in order to teach the course.

The students will be able to call the Vote([teachers]) method with the list of teachers that they approve.

In order to reach a consensus all students must vote the same teacher and reach unanimous consensus over who will be accepted by the group as their teacher.
If a student wants to leave the course their vote is cancelled and the consensus is rechecked to see if a teacher should be accepted.