df-papertrade-core 0.0.11-beta

//! Staking and unstaking PAPER, and claiming the USDC rewards staking distributes.

use df_hyperliquid_core::utils::Address;

use super::Refusal;

/// Stakes or unstakes `amount` PAPER (18 decimals). Both take effect at once.
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct Staking {
    pub user: Address,
    pub amount: u128,
    pub nonce: u128,
    pub deadline: u64,
}

impl Staking {
    /// Refuses a zero amount.
    pub fn new(user: Address, amount: u128, nonce: u128, deadline: u64) -> Result<Self, Refusal> {
        Staking::check(amount)?;
        Ok(Staking { user, amount, nonce, deadline })
    }

    /// What [`Staking::new`] refuses, checked before a nonce is spent.
    pub const fn check(amount: u128) -> Result<(), Refusal> {
        if amount == 0 { Err(Refusal::NoAmount) } else { Ok(()) }
    }
}

/// Claims every distributed USDC reward into the Exchange balance.
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct Claim {
    pub user: Address,
    pub nonce: u128,
    pub deadline: u64,
}