0g-chain/x/hard/keeper/keeper.go

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package keeper
import (
"time"
"github.com/cosmos/cosmos-sdk/codec"
"github.com/cosmos/cosmos-sdk/store/prefix"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/x/params/subspace"
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"github.com/kava-labs/kava/x/hard/types"
)
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// Keeper keeper for the hard module
type Keeper struct {
key sdk.StoreKey
cdc *codec.Codec
paramSubspace subspace.Subspace
accountKeeper types.AccountKeeper
supplyKeeper types.SupplyKeeper
stakingKeeper types.StakingKeeper
pricefeedKeeper types.PricefeedKeeper
auctionKeeper types.AuctionKeeper
hooks types.HARDHooks
}
// NewKeeper creates a new keeper
func NewKeeper(cdc *codec.Codec, key sdk.StoreKey, paramstore subspace.Subspace,
ak types.AccountKeeper, sk types.SupplyKeeper, stk types.StakingKeeper,
pfk types.PricefeedKeeper, auk types.AuctionKeeper) Keeper {
if !paramstore.HasKeyTable() {
paramstore = paramstore.WithKeyTable(types.ParamKeyTable())
}
return Keeper{
key: key,
cdc: cdc,
paramSubspace: paramstore,
accountKeeper: ak,
supplyKeeper: sk,
stakingKeeper: stk,
pricefeedKeeper: pfk,
auctionKeeper: auk,
hooks: nil,
}
}
// SetHooks sets the cdp keeper hooks
func (k *Keeper) SetHooks(hooks types.HARDHooks) *Keeper {
if k.hooks != nil {
panic("cannot set validator hooks twice")
}
k.hooks = hooks
return k
}
// GetDeposit returns a deposit from the store for a particular depositor address, deposit denom
func (k Keeper) GetDeposit(ctx sdk.Context, depositor sdk.AccAddress) (types.Deposit, bool) {
store := prefix.NewStore(ctx.KVStore(k.key), types.DepositsKeyPrefix)
bz := store.Get(depositor.Bytes())
if bz == nil {
return types.Deposit{}, false
}
var deposit types.Deposit
k.cdc.MustUnmarshalBinaryBare(bz, &deposit)
return deposit, true
}
// SetDeposit sets the input deposit in the store, prefixed by the deposit type, deposit denom, and depositor address, in that order
func (k Keeper) SetDeposit(ctx sdk.Context, deposit types.Deposit) {
store := prefix.NewStore(ctx.KVStore(k.key), types.DepositsKeyPrefix)
bz := k.cdc.MustMarshalBinaryBare(deposit)
store.Set(deposit.Depositor.Bytes(), bz)
}
// DeleteDeposit deletes a deposit from the store
func (k Keeper) DeleteDeposit(ctx sdk.Context, deposit types.Deposit) {
store := prefix.NewStore(ctx.KVStore(k.key), types.DepositsKeyPrefix)
store.Delete(deposit.Depositor.Bytes())
}
// IterateDeposits iterates over all deposit objects in the store and performs a callback function
func (k Keeper) IterateDeposits(ctx sdk.Context, cb func(deposit types.Deposit) (stop bool)) {
store := prefix.NewStore(ctx.KVStore(k.key), types.DepositsKeyPrefix)
iterator := sdk.KVStorePrefixIterator(store, []byte{})
defer iterator.Close()
for ; iterator.Valid(); iterator.Next() {
var deposit types.Deposit
k.cdc.MustUnmarshalBinaryBare(iterator.Value(), &deposit)
if cb(deposit) {
break
}
}
}
// GetDepositsByUser gets all deposits for an individual user
func (k Keeper) GetDepositsByUser(ctx sdk.Context, user sdk.AccAddress) []types.Deposit {
var deposits []types.Deposit
k.IterateDeposits(ctx, func(deposit types.Deposit) (stop bool) {
if deposit.Depositor.Equals(user) {
deposits = append(deposits, deposit)
}
return false
})
return deposits
}
// BondDenom returns the bond denom from the staking keeper
func (k Keeper) BondDenom(ctx sdk.Context) string {
return k.stakingKeeper.BondDenom(ctx)
}
// GetBorrow returns a Borrow from the store for a particular borrower address and borrow denom
func (k Keeper) GetBorrow(ctx sdk.Context, borrower sdk.AccAddress) (types.Borrow, bool) {
store := prefix.NewStore(ctx.KVStore(k.key), types.BorrowsKeyPrefix)
bz := store.Get(borrower)
if bz == nil {
return types.Borrow{}, false
}
var borrow types.Borrow
k.cdc.MustUnmarshalBinaryBare(bz, &borrow)
return borrow, true
}
// SetBorrow sets the input borrow in the store, prefixed by the borrower address and borrow denom
func (k Keeper) SetBorrow(ctx sdk.Context, borrow types.Borrow) {
store := prefix.NewStore(ctx.KVStore(k.key), types.BorrowsKeyPrefix)
bz := k.cdc.MustMarshalBinaryBare(borrow)
store.Set(borrow.Borrower, bz)
}
// DeleteBorrow deletes a borrow from the store
func (k Keeper) DeleteBorrow(ctx sdk.Context, borrow types.Borrow) {
store := prefix.NewStore(ctx.KVStore(k.key), types.BorrowsKeyPrefix)
store.Delete(borrow.Borrower)
}
// IterateBorrows iterates over all borrow objects in the store and performs a callback function
func (k Keeper) IterateBorrows(ctx sdk.Context, cb func(borrow types.Borrow) (stop bool)) {
store := prefix.NewStore(ctx.KVStore(k.key), types.BorrowsKeyPrefix)
iterator := sdk.KVStorePrefixIterator(store, []byte{})
defer iterator.Close()
for ; iterator.Valid(); iterator.Next() {
var borrow types.Borrow
k.cdc.MustUnmarshalBinaryBare(iterator.Value(), &borrow)
if cb(borrow) {
break
}
}
}
// SetBorrowedCoins sets the total amount of coins currently borrowed in the store
func (k Keeper) SetBorrowedCoins(ctx sdk.Context, borrowedCoins sdk.Coins) {
store := prefix.NewStore(ctx.KVStore(k.key), types.BorrowedCoinsPrefix)
if borrowedCoins.Empty() {
store.Set([]byte{}, []byte{})
} else {
bz := k.cdc.MustMarshalBinaryBare(borrowedCoins)
store.Set([]byte{}, bz)
}
}
// GetBorrowedCoins returns an sdk.Coins object from the store representing all currently borrowed coins
func (k Keeper) GetBorrowedCoins(ctx sdk.Context) (sdk.Coins, bool) {
store := prefix.NewStore(ctx.KVStore(k.key), types.BorrowedCoinsPrefix)
bz := store.Get([]byte{})
if bz == nil {
return sdk.Coins{}, false
}
var borrowedCoins sdk.Coins
k.cdc.MustUnmarshalBinaryBare(bz, &borrowedCoins)
return borrowedCoins, true
}
// SetSuppliedCoins sets the total amount of coins currently supplied in the store
func (k Keeper) SetSuppliedCoins(ctx sdk.Context, suppliedCoins sdk.Coins) {
store := prefix.NewStore(ctx.KVStore(k.key), types.SuppliedCoinsPrefix)
if suppliedCoins.Empty() {
store.Set([]byte{}, []byte{})
} else {
bz := k.cdc.MustMarshalBinaryBare(suppliedCoins)
store.Set([]byte{}, bz)
}
}
// GetSuppliedCoins returns an sdk.Coins object from the store representing all currently supplied coins
func (k Keeper) GetSuppliedCoins(ctx sdk.Context) (sdk.Coins, bool) {
store := prefix.NewStore(ctx.KVStore(k.key), types.SuppliedCoinsPrefix)
bz := store.Get([]byte{})
if bz == nil {
return sdk.Coins{}, false
}
var suppliedCoins sdk.Coins
k.cdc.MustUnmarshalBinaryBare(bz, &suppliedCoins)
return suppliedCoins, true
}
// GetMoneyMarket returns a money market from the store for a denom
func (k Keeper) GetMoneyMarket(ctx sdk.Context, denom string) (types.MoneyMarket, bool) {
store := prefix.NewStore(ctx.KVStore(k.key), types.MoneyMarketsPrefix)
bz := store.Get([]byte(denom))
if bz == nil {
return types.MoneyMarket{}, false
}
var moneyMarket types.MoneyMarket
k.cdc.MustUnmarshalBinaryBare(bz, &moneyMarket)
return moneyMarket, true
}
// SetMoneyMarket sets a money market in the store for a denom
func (k Keeper) SetMoneyMarket(ctx sdk.Context, denom string, moneyMarket types.MoneyMarket) {
store := prefix.NewStore(ctx.KVStore(k.key), types.MoneyMarketsPrefix)
bz := k.cdc.MustMarshalBinaryBare(moneyMarket)
store.Set([]byte(denom), bz)
}
// DeleteMoneyMarket deletes a money market from the store
func (k Keeper) DeleteMoneyMarket(ctx sdk.Context, denom string) {
store := prefix.NewStore(ctx.KVStore(k.key), types.MoneyMarketsPrefix)
store.Delete([]byte(denom))
}
// IterateMoneyMarkets iterates over all money markets objects in the store and performs a callback function
// that returns both the money market and the key (denom) it's stored under
func (k Keeper) IterateMoneyMarkets(ctx sdk.Context, cb func(denom string, moneyMarket types.MoneyMarket) (stop bool)) {
store := prefix.NewStore(ctx.KVStore(k.key), types.MoneyMarketsPrefix)
iterator := sdk.KVStorePrefixIterator(store, []byte{})
defer iterator.Close()
for ; iterator.Valid(); iterator.Next() {
var moneyMarket types.MoneyMarket
k.cdc.MustUnmarshalBinaryBare(iterator.Value(), &moneyMarket)
if cb(string(iterator.Key()), moneyMarket) {
break
}
}
}
// GetAllMoneyMarkets returns all money markets from the store
func (k Keeper) GetAllMoneyMarkets(ctx sdk.Context) (moneyMarkets types.MoneyMarkets) {
k.IterateMoneyMarkets(ctx, func(denom string, moneyMarket types.MoneyMarket) bool {
moneyMarkets = append(moneyMarkets, moneyMarket)
return false
})
return
}
// GetPreviousAccrualTime returns the last time an individual market accrued interest
func (k Keeper) GetPreviousAccrualTime(ctx sdk.Context, denom string) (time.Time, bool) {
store := prefix.NewStore(ctx.KVStore(k.key), types.PreviousAccrualTimePrefix)
bz := store.Get([]byte(denom))
if bz == nil {
return time.Time{}, false
}
var previousAccrualTime time.Time
k.cdc.MustUnmarshalBinaryBare(bz, &previousAccrualTime)
return previousAccrualTime, true
}
// SetPreviousAccrualTime sets the most recent accrual time for a particular market
func (k Keeper) SetPreviousAccrualTime(ctx sdk.Context, denom string, previousAccrualTime time.Time) {
store := prefix.NewStore(ctx.KVStore(k.key), types.PreviousAccrualTimePrefix)
bz := k.cdc.MustMarshalBinaryBare(previousAccrualTime)
store.Set([]byte(denom), bz)
}
// GetTotalReserves returns the total reserves for an individual market
func (k Keeper) GetTotalReserves(ctx sdk.Context) (sdk.Coins, bool) {
store := prefix.NewStore(ctx.KVStore(k.key), types.TotalReservesPrefix)
bz := store.Get([]byte{})
if bz == nil {
return sdk.Coins{}, false
}
var totalReserves sdk.Coins
k.cdc.MustUnmarshalBinaryBare(bz, &totalReserves)
return totalReserves, true
}
// SetTotalReserves sets the total reserves for an individual market
func (k Keeper) SetTotalReserves(ctx sdk.Context, coins sdk.Coins) {
store := prefix.NewStore(ctx.KVStore(k.key), types.TotalReservesPrefix)
if coins.Empty() {
store.Set([]byte{}, []byte{})
return
}
bz := k.cdc.MustMarshalBinaryBare(coins)
store.Set([]byte{}, bz)
}
// GetBorrowInterestFactor returns the current borrow interest factor for an individual market
func (k Keeper) GetBorrowInterestFactor(ctx sdk.Context, denom string) (sdk.Dec, bool) {
store := prefix.NewStore(ctx.KVStore(k.key), types.BorrowInterestFactorPrefix)
bz := store.Get([]byte(denom))
if bz == nil {
return sdk.ZeroDec(), false
}
var borrowInterestFactor sdk.Dec
k.cdc.MustUnmarshalBinaryBare(bz, &borrowInterestFactor)
return borrowInterestFactor, true
}
// SetBorrowInterestFactor sets the current borrow interest factor for an individual market
func (k Keeper) SetBorrowInterestFactor(ctx sdk.Context, denom string, borrowInterestFactor sdk.Dec) {
store := prefix.NewStore(ctx.KVStore(k.key), types.BorrowInterestFactorPrefix)
bz := k.cdc.MustMarshalBinaryBare(borrowInterestFactor)
store.Set([]byte(denom), bz)
}
// IterateBorrowInterestFactors iterates over all borrow interest factors in the store and returns
// both the borrow interest factor and the key (denom) it's stored under
func (k Keeper) IterateBorrowInterestFactors(ctx sdk.Context, cb func(denom string, factor sdk.Dec) (stop bool)) {
store := prefix.NewStore(ctx.KVStore(k.key), types.BorrowInterestFactorPrefix)
iterator := sdk.KVStorePrefixIterator(store, []byte{})
defer iterator.Close()
for ; iterator.Valid(); iterator.Next() {
var factor sdk.Dec
k.cdc.MustUnmarshalBinaryBare(iterator.Value(), &factor)
if cb(string(iterator.Key()), factor) {
break
}
}
}
// GetSupplyInterestFactor returns the current supply interest factor for an individual market
func (k Keeper) GetSupplyInterestFactor(ctx sdk.Context, denom string) (sdk.Dec, bool) {
store := prefix.NewStore(ctx.KVStore(k.key), types.SupplyInterestFactorPrefix)
bz := store.Get([]byte(denom))
if bz == nil {
return sdk.ZeroDec(), false
}
var supplyInterestFactor sdk.Dec
k.cdc.MustUnmarshalBinaryBare(bz, &supplyInterestFactor)
return supplyInterestFactor, true
}
// SetSupplyInterestFactor sets the current supply interest factor for an individual market
func (k Keeper) SetSupplyInterestFactor(ctx sdk.Context, denom string, supplyInterestFactor sdk.Dec) {
store := prefix.NewStore(ctx.KVStore(k.key), types.SupplyInterestFactorPrefix)
bz := k.cdc.MustMarshalBinaryBare(supplyInterestFactor)
store.Set([]byte(denom), bz)
}
// IterateSupplyInterestFactors iterates over all supply interest factors in the store and returns
// both the supply interest factor and the key (denom) it's stored under
func (k Keeper) IterateSupplyInterestFactors(ctx sdk.Context, cb func(denom string, factor sdk.Dec) (stop bool)) {
store := prefix.NewStore(ctx.KVStore(k.key), types.SupplyInterestFactorPrefix)
iterator := sdk.KVStorePrefixIterator(store, []byte{})
defer iterator.Close()
for ; iterator.Valid(); iterator.Next() {
var factor sdk.Dec
k.cdc.MustUnmarshalBinaryBare(iterator.Value(), &factor)
if cb(string(iterator.Key()), factor) {
break
}
}
}