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README.md

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Introduction

The savings rate contract stakes ICX and relays it to the balanced handler for the savings rate given to bnUSD stakers.

Overview

Requirements

  • The contract should be owned by governance.
  • The contract should swap incoming inflation to sICX and distribute to balanced target contract.
  • The contract should be able to manually stake in case of failure during fallback.

Design

Storage and Structs

public DictDB<BigInteger, LiquidityOrder> orders;

// All below parameters should be configurable by governance only.
public VarDB<Address> staking;
public VarDB<Address> balancedReceiver;

Methods

/**
 * Tries to stake the whole ICX balance to the balanced receiver
 *
 */
 @Payable
public void fallback() {
    try {
        stakeAndSend(Context.getBalance(Context.getAddress()));
    } catch (Exception e) {
        StakeFailed();
    }
}
/**
 * Stakes 'amount' to the balanced receiver
 *
 * @param amount The amount to stake and send
 */
@External
public void stakeAndSend(BigInteger amount) {
    staking.stakeICX(amount, balancedReceiver)
}
@EventLog(indexed = 1)
public void StakeFailed()