package keeper import ( "fmt" "github.com/cosmos/cosmos-sdk/codec" "github.com/cosmos/cosmos-sdk/store/prefix" sdk "github.com/cosmos/cosmos-sdk/types" paramtypes "github.com/cosmos/cosmos-sdk/x/params/types" "github.com/tendermint/tendermint/libs/log" "github.com/kava-labs/kava/x/savings/types" ) // Keeper struct for savings module type Keeper struct { key sdk.StoreKey cdc codec.Codec paramSubspace paramtypes.Subspace accountKeeper types.AccountKeeper bankKeeper types.BankKeeper hooks types.SavingsHooks } // NewKeeper returns a new keeper for the savings module. func NewKeeper( cdc codec.Codec, key sdk.StoreKey, paramstore paramtypes.Subspace, ak types.AccountKeeper, bk types.BankKeeper, ) Keeper { if !paramstore.HasKeyTable() { paramstore = paramstore.WithKeyTable(types.ParamKeyTable()) } return Keeper{ cdc: cdc, key: key, paramSubspace: paramstore, accountKeeper: ak, bankKeeper: bk, hooks: nil, } } // SetHooks adds hooks to the keeper. func (k *Keeper) SetHooks(hooks types.MultiSavingsHooks) *Keeper { if k.hooks != nil { panic("cannot set savings hooks twice") } k.hooks = hooks return k } // GetSavingsModuleAccountBalances returns the savings module account balances func (k Keeper) GetSavingsModuleAccountBalances(ctx sdk.Context) sdk.Coins { savingMacc := k.accountKeeper.GetModuleAccount(ctx, types.ModuleAccountName) return k.bankKeeper.GetAllBalances(ctx, savingMacc.GetAddress()) } // 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 len(bz) == 0 { return types.Deposit{}, false } var deposit types.Deposit k.cdc.MustUnmarshal(bz, &deposit) return deposit, true } // SetDeposit sets the input deposit in the store func (k Keeper) SetDeposit(ctx sdk.Context, deposit types.Deposit) { store := prefix.NewStore(ctx.KVStore(k.key), types.DepositsKeyPrefix) bz := k.cdc.MustMarshal(&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.MustUnmarshal(iterator.Value(), &deposit) if cb(deposit) { break } } } // GetAllDeposits returns all Deposits from the store func (k Keeper) GetAllDeposits(ctx sdk.Context) (deposits types.Deposits) { k.IterateDeposits(ctx, func(deposit types.Deposit) bool { deposits = append(deposits, deposit) return false }) return } // Logger returns a module-specific logger. func (k Keeper) Logger(ctx sdk.Context) log.Logger { return ctx.Logger().With("module", fmt.Sprintf("x/%s", types.ModuleName)) }