keeper

type AccountHook func(sdk.Context, types.Account)

type BankKeeper interface {
	SendCoinsFromModuleToAccount(ctx sdk.Context, senderModule string, recipientAddr sdk.AccAddress, amt sdk.Coins) error
	SendCoinsFromAccountToModule(ctx sdk.Context, senderAddr sdk.AccAddress, recipientModule string, amt sdk.Coins) error
	SendCoinsFromModuleToModule(ctx sdk.Context, senderModule string, recipientModule string, amt sdk.Coins) error
}

type Keeper interface {
	Codec() codec.BinaryCodec
	StoreKey() sdk.StoreKey
	AccountCreate(ctx sdk.Context, id types.AccountID, owner, depositor sdk.AccAddress, deposit sdk.Coin) error
	AccountDeposit(ctx sdk.Context, id types.AccountID, depositor sdk.AccAddress, amount sdk.Coin) error
	AccountSettle(ctx sdk.Context, id types.AccountID) (bool, error)
	AccountClose(ctx sdk.Context, id types.AccountID) error
	PaymentCreate(ctx sdk.Context, id types.AccountID, pid string, owner sdk.AccAddress, rate sdk.DecCoin) error
	PaymentWithdraw(ctx sdk.Context, id types.AccountID, pid string) error
	PaymentClose(ctx sdk.Context, id types.AccountID, pid string) error
	GetAccount(ctx sdk.Context, id types.AccountID) (types.Account, error)
	GetPayment(ctx sdk.Context, id types.AccountID, pid string) (types.FractionalPayment, error)
	AddOnAccountClosedHook(AccountHook) Keeper
	AddOnPaymentClosedHook(PaymentHook) Keeper

	// for genesis
	WithAccounts(sdk.Context, func(types.Account) bool)
	WithPayments(sdk.Context, func(types.FractionalPayment) bool)
	SaveAccount(sdk.Context, types.Account)
	SavePayment(sdk.Context, types.FractionalPayment)
}

type PaymentHook func(sdk.Context, types.FractionalPayment)

type TakeKeeper interface {
	SubtractFees(ctx sdk.Context, amt sdk.Coin) (sdk.Coin, sdk.Coin, error)
}