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" "github.com/kava-labs/kava/x/hard/types" ) // 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 } } } // 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) } // 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) }