0g-chain/x/cdp/genesis.go

134 lines
4.6 KiB
Go

package cdp
import (
"fmt"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/kava-labs/kava/x/cdp/keeper"
"github.com/kava-labs/kava/x/cdp/types"
)
// InitGenesis sets initial genesis state for cdp module
func InitGenesis(ctx sdk.Context, k keeper.Keeper, pk types.PricefeedKeeper, ak types.AccountKeeper, gs types.GenesisState) {
if err := gs.Validate(); err != nil {
panic(fmt.Sprintf("failed to validate %s genesis state: %s", types.ModuleName, err))
}
// check if the module accounts exists
cdpModuleAcc := ak.GetModuleAccount(ctx, types.ModuleName)
if cdpModuleAcc == nil {
panic(fmt.Sprintf("%s module account has not been set", types.ModuleName))
}
liqModuleAcc := ak.GetModuleAccount(ctx, types.LiquidatorMacc)
if liqModuleAcc == nil {
panic(fmt.Sprintf("%s module account has not been set", types.LiquidatorMacc))
}
// validate denoms - check that any collaterals in the params are in the pricefeed,
// pricefeed MUST call InitGenesis before cdp
collateralMap := make(map[string]int)
ap := pk.GetParams(ctx)
for _, a := range ap.Markets {
collateralMap[a.MarketID] = 1
}
for _, col := range gs.Params.CollateralParams {
_, found := collateralMap[col.SpotMarketID]
if !found {
panic(fmt.Sprintf("%s collateral market %v not found in pricefeed", col.Denom, col.SpotMarketID))
}
// sets the status of the pricefeed in the store
// if pricefeed not active, debt operations are paused
_ = k.UpdatePricefeedStatus(ctx, col.SpotMarketID)
_, found = collateralMap[col.LiquidationMarketID]
if !found {
panic(fmt.Sprintf("%s collateral market %v not found in pricefeed", col.Denom, col.LiquidationMarketID))
}
// sets the status of the pricefeed in the store
// if pricefeed not active, debt operations are paused
_ = k.UpdatePricefeedStatus(ctx, col.LiquidationMarketID)
}
k.SetParams(ctx, gs.Params)
for _, gat := range gs.PreviousAccumulationTimes {
k.SetInterestFactor(ctx, gat.CollateralType, gat.InterestFactor)
if gat.PreviousAccumulationTime.Unix() > 0 {
k.SetPreviousAccrualTime(ctx, gat.CollateralType, gat.PreviousAccumulationTime)
}
}
for _, gtp := range gs.TotalPrincipals {
k.SetTotalPrincipal(ctx, gtp.CollateralType, types.DefaultStableDenom, gtp.TotalPrincipal)
}
// add cdps
for _, cdp := range gs.CDPs {
if cdp.ID == gs.StartingCdpID {
panic(fmt.Sprintf("starting cdp id is assigned to an existing cdp: %v", cdp))
}
err := k.SetCDP(ctx, cdp)
if err != nil {
panic(fmt.Sprintf("error setting cdp: %v", err))
}
k.IndexCdpByOwner(ctx, cdp)
ratio := k.CalculateCollateralToDebtRatio(ctx, cdp.Collateral, cdp.Type, cdp.GetTotalPrincipal())
k.IndexCdpByCollateralRatio(ctx, cdp.Type, cdp.ID, ratio)
}
k.SetNextCdpID(ctx, gs.StartingCdpID)
k.SetDebtDenom(ctx, gs.DebtDenom)
k.SetGovDenom(ctx, gs.GovDenom)
for _, d := range gs.Deposits {
k.SetDeposit(ctx, d)
}
}
// ExportGenesis export genesis state for cdp module
func ExportGenesis(ctx sdk.Context, k keeper.Keeper) types.GenesisState {
params := k.GetParams(ctx)
cdps := types.CDPs{}
deposits := types.Deposits{}
k.IterateAllCdps(ctx, func(cdp types.CDP) (stop bool) {
syncedCdp := k.SynchronizeInterest(ctx, cdp)
cdps = append(cdps, syncedCdp)
k.IterateDeposits(ctx, cdp.ID, func(deposit types.Deposit) (stop bool) {
deposits = append(deposits, deposit)
return false
})
return false
})
cdpID := k.GetNextCdpID(ctx)
debtDenom := k.GetDebtDenom(ctx)
govDenom := k.GetGovDenom(ctx)
var previousAccumTimes types.GenesisAccumulationTimes
var totalPrincipals types.GenesisTotalPrincipals
for _, cp := range params.CollateralParams {
interestFactor, found := k.GetInterestFactor(ctx, cp.Type)
if !found {
interestFactor = sdk.OneDec()
}
// Governance param changes happen in the end blocker. If a new collateral type is added and then the chain
// is exported before the BeginBlocker can run, previous accrual time won't be found. We can't set it to
// current block time because it is not available in the export ctx. We should panic instead of exporting
// bad state.
previousAccumTime, f := k.GetPreviousAccrualTime(ctx, cp.Type)
if !f {
panic(fmt.Sprintf("expected previous accrual time to be set in state for %s", cp.Type))
}
previousAccumTimes = append(previousAccumTimes, types.NewGenesisAccumulationTime(cp.Type, previousAccumTime, interestFactor))
tp := k.GetTotalPrincipal(ctx, cp.Type, types.DefaultStableDenom)
genTotalPrincipal := types.NewGenesisTotalPrincipal(cp.Type, tp)
totalPrincipals = append(totalPrincipals, genTotalPrincipal)
}
return types.NewGenesisState(params, cdps, deposits, cdpID, debtDenom, govDenom, previousAccumTimes, totalPrincipals)
}