prepare

type BeforeTxParam struct {
	Fee        assets.Token
	GasPrice   big.Int
	Utxos      Utxos
	RefundTo   c_type.PKr
	Receptions []Reception
	Cmds       Cmds
}

type Cmds struct {
	//Share
	BuyShare *stx.BuyShareCmd
	//Pool
	RegistPool *stx.RegistPoolCmd
	ClosePool  *stx.ClosePoolCmd
	//Contract
	Contract *stx.ContractCmd
	//Package
	PkgCreate   *PkgCreateCmd
	PkgTransfer *PkgTransferCmd
	PkgClose    *PkgCloseCmd
}

type DefaultTxParamState struct {
}

type PkgCloseCmd struct {
	Id  c_type.Uint256
	Key c_type.Uint256
}

type PkgCreateCmd struct {
	Id    c_type.Uint256
	PKr   c_type.PKr
	Asset assets.Asset
	Memo  c_type.Uint512
}

type PkgTransferCmd struct {
	Id  c_type.Uint256
	PKr c_type.PKr
}

type PreTxParam struct {
	From       c_type.Uint512
	RefundTo   *c_type.PKr
	Receptions []Reception
	Cmds       Cmds
	Fee        assets.Token
	GasPrice   *big.Int
	Roots      []c_type.Uint256
}

type Reception struct {
	Addr  c_type.PKr
	Asset assets.Asset
}

type TxParamGenerator interface {
	FindRoots(pk *c_type.Uint512, currency string, amount *big.Int) (utxos Utxos, remain big.Int)
	FindRootsByTicket(pk *c_type.Uint512, tickets []assets.Ticket) (roots Utxos, remain map[c_type.Uint256]c_type.Uint256)
	GetRoot(root *c_type.Uint256) (utxos *Utxo)
	DefaultRefundTo(pk *c_type.Uint512) (ret *c_type.PKr)
}

type TxParamState interface {
	GetAnchor(roots []c_type.Uint256) (wits []txtool.Witness, e error)
	GetOut(root *c_type.Uint256) (out *localdb.RootState)
	GetPkgById(id *c_type.Uint256) (ret *localdb.ZPkg)
	GetAxisGasLimit(to *common.Address, tfee *assets.Token, gasPrice *big.Int) (gaslimit uint64, e error)
}

type Utxo struct {
	Root  c_type.Uint256
	Asset assets.Asset
}

type Utxos []Utxo