/
farm.go
81 lines (70 loc) · 2.13 KB
/
farm.go
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package types
import (
math "math"
sdk "github.com/cosmos/cosmos-sdk/types"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
)
func (pool FarmPool) Started(ctx sdk.Context) bool {
return pool.StartHeight <= ctx.BlockHeight()
}
func (pool FarmPool) ExpiredHeight() (int64, error) {
var targetInteval = int64(math.MaxInt64)
for _, r := range pool.Rules {
inteval := r.TotalReward.Quo(r.RewardPerBlock).Int64()
if targetInteval > inteval {
targetInteval = inteval
}
}
if int64(math.MaxInt64)-pool.StartHeight < targetInteval {
return 0, sdkerrors.Wrapf(sdkerrors.ErrInvalidHeight, "endheight overflow")
}
return pool.StartHeight + targetInteval, nil
}
func (pool FarmPool) CaclRewards(farmInfo FarmInfo, deltaAmt sdk.Int) (rewards, rewardDebt sdk.Coins) {
for _, r := range pool.Rules {
if farmInfo.Locked.GT(sdk.ZeroInt()) {
pendingRewardTotal := r.RewardPerShare.MulInt(farmInfo.Locked).TruncateInt()
pendingReward := pendingRewardTotal.Sub(farmInfo.RewardDebt.AmountOf(r.Reward))
rewards = rewards.Add(sdk.NewCoin(r.Reward, pendingReward))
}
locked := farmInfo.Locked.Add(deltaAmt)
debt := sdk.NewCoin(r.Reward, r.RewardPerShare.MulInt(locked).TruncateInt())
rewardDebt = rewardDebt.Add(debt)
}
return rewards, rewardDebt
}
type RewardRules []RewardRule
func (rs RewardRules) Contains(reward sdk.Coins) bool {
if len(rs) < len(reward) {
return false
}
var allRewards sdk.Coins
for _, r := range rs {
allRewards = allRewards.Add(sdk.NewCoin(r.Reward, r.RemainingReward))
}
return reward.DenomsSubsetOf(allRewards)
}
func (rs RewardRules) UpdateWith(rewardPerBlock sdk.Coins) RewardRules {
if rewardPerBlock == nil {
return rs
}
for i := range rs {
rewardAmt := rewardPerBlock.AmountOf(rs[i].Reward)
if rewardAmt.IsPositive() {
rs[i].RewardPerBlock = rewardAmt
}
}
return rs
}
func (rs RewardRules) RewardsPerBlock() (coins sdk.Coins) {
for _, r := range rs {
coins = coins.Add(sdk.NewCoin(r.Reward, r.RewardPerBlock))
}
return coins
}
func (rs RewardRules) TotalReward() (total sdk.Coins) {
for _, r := range rs {
total = total.Add(sdk.NewCoin(r.Reward, r.TotalReward))
}
return total
}