Description

Background

Currently, we have similar reward calculation logic implemented in both the launchpad and gov/staker packages. This leads to code duplication and potential maintenance issues. We should extract the common functionality into a shared reward package to improve code reusability and maintainability.

Proposed Solution

Create a new reward package that contains the common reward calculation logic. This package will provide base structures and interfaces that can be extended by both the launchpad and staker packages for their specific needs.

Key Components

1. Common Structures:

   • RewardInfo: Base structure for storing staking and reward information
   • RewardCalculator: Interface defining core reward calculation methods
   • BaseRewardState: Base structure for managing reward state

2. Functions to be Extracted:

3. Package-Specific Extensions:

Launchpad-specific:

type LaunchpadRewardState struct {
    *reward.BaseRewardState
    EndHeight        uint64
    RewardPerBlock   *u256.Uint
    TotalEmptyBlock  uint64
}

Staker-specific:

type StakerRewardState struct {
    *reward.BaseRewardState
    ProtocolFeePriceAccumulation  map[string]*u256.Uint
    CurrentProtocolFeeBalance     map[string]uint64
}