state

type AssetState struct {
	IAssetState
	// contains filtered or unexported fields
}

type IAssetState interface {

	// The Asset Name is used to find the chain in Factom.
	// This same code can be used to manage many different
	// sorts of assets.
	AssetName() ([]string, error)
	ChainID() []byte
	SetAssetName([]string) error
	// Set the database for the Asset State.  This is where
	// we manage the balances for transactions in this asset.
	SetDB(db.IFDatabase)
	GetDB() db.IFDatabase

	// Load the state of Asset (or catch up the state of the
	// asset.
	LoadState() error

	// Get the wallet used to help manage the Asset State.
	GetWallet() wallet.ISCWallet
	SetWallet(wallet.ISCWallet)

	// Update balance updates the balance for the asset address in
	// the database.  Note that we take an int64 to allow debits
	// as well as credits.  This is an interal function, and
	// changing the local database in no way can compromise the
	// balances of assets held in Factom.
	UpdateBalance(address fct.IAddress, amount int64) error

	// Return the Asset balance for an address
	GetBalance(address fct.IAddress) uint64

	// Time is something that can vary across multiple systems, and
	// must be controlled in order to build reliable, repeatable
	// tests.  Therefore, no node should directly querry system
	// time.
	GetTimeMilli() uint64 // Count of milliseconds from Jan 1,1970
	GetTime() uint64      // Count of seconds from Jan 1, 1970

	// Validate transaction
	// Return zero len string if the balance of an address covers each input
	Validate(fct.ITransaction) error

	// Update Transaction just updates the balance sheet with the
	// addition of a transaction.
	UpdateTransaction(fct.ITransaction) error

	// Add a Transaction to the current block.  The transaction is
	// validated against the address balances, which must cover The
	// inputs.  Returns true if the transaction is added.
	AddTransaction(fct.ITransaction) error

	// Get the block height for this asset.
	GetAssetHeight() uint32
}