0g-chain/x/cdp/abci.go
Kevin Davis ade6edb918
[R4R] Add liquidation pricefeed (#524)
* add parameter for liquidation pricefeed
2020-05-24 09:42:46 -04:00

55 lines
1.3 KiB
Go

package cdp
import (
sdk "github.com/cosmos/cosmos-sdk/types"
abci "github.com/tendermint/tendermint/abci/types"
)
// BeginBlocker compounds the debt in outstanding cdps and liquidates cdps that are below the required collateralization ratio
func BeginBlocker(ctx sdk.Context, req abci.RequestBeginBlock, k Keeper) {
params := k.GetParams(ctx)
previousDistTime, found := k.GetPreviousSavingsDistribution(ctx)
if !found {
previousDistTime = ctx.BlockTime()
k.SetPreviousSavingsDistribution(ctx, previousDistTime)
}
for _, cp := range params.CollateralParams {
ok := k.UpdatePricefeedStatus(ctx, cp.SpotMarketID)
if !ok {
continue
}
ok = k.UpdatePricefeedStatus(ctx, cp.LiquidationMarketID)
if !ok {
continue
}
err := k.UpdateFeesForAllCdps(ctx, cp.Denom)
if err != nil {
panic(err)
}
err = k.LiquidateCdps(ctx, cp.LiquidationMarketID, cp.Denom, cp.LiquidationRatio)
if err != nil {
panic(err)
}
}
err := k.RunSurplusAndDebtAuctions(ctx)
if err != nil {
panic(err)
}
distTimeElapsed := sdk.NewInt(ctx.BlockTime().Unix() - previousDistTime.Unix())
if !distTimeElapsed.GTE(sdk.NewInt(int64(params.SavingsDistributionFrequency.Seconds()))) {
return
}
err = k.DistributeSavingsRate(ctx, params.DebtParam.Denom)
if err != nil {
panic(err)
}
k.SetPreviousSavingsDistribution(ctx, ctx.BlockTime())
}