Simple Staking

[zie1ony]

Simple Staking

To get us of the ground with staking, here is the simplest staking implementation we can think of.
I think it also is a good starting point if we want to make it more complex later on.
It follows the model from #1.

Staking

Staking is done as-you-go. It means there is no pooling of funds before staking.
When user wants to stake, its funds are delegated right away.

sequenceDiagram
    participant User
    participant Contract as sCSPR Contract
    participant Host as Auction Contract

    User ->> Contract: Send CSPR
    Contract ->> Host: Delegate CSPR
    Contract ->> User: Mint sCSPR

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Unstaking

Unstaking is more complex, becasue user needs to wait for the unstaked funds to be released.
So this flow requires user to interact with the contract twice.

Lido does it the same way: How do I unstake my stETH?

sequenceDiagram
    participant User
    participant Contract as sCSPR Contract
    participant Host as Auction Contract

    User ->> Contract: Unstake sCSPR
    Note over Contract: Burn sCSPR
    Contract ->> Host: Undelegate CSPR
    Contract ->> User: Reciept

    %% some time passes
    Note over User,Host: Time passes

    Host ->> Contract: CSPR is released
    User ->> Contract: Request CSPR using the Reciept
    Contract ->> User: Recieve CSPR

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[davidatwhiletrue]

@zie1ony Is sCSPR burnt in during the unstaking flow? In which step? It would be worth to show when the fungible token is transferred from user to contract and when is burnt (if that happens).

[zie1ony]

Thx. I added it to the diagram.