// CalculateAddressBalance sums the amounts of all unspent transaction
// outputs to a single address's pubkey hash and returns the balance
// as a float64.
//
// If confirmations is 0, all UTXOs, even those not present in a
// block (height -1), will be used to get the balance. Otherwise,
// a UTXO must be in a block. If confirmations is 1 or greater,
// the balance will be calculated based on how many how many blocks
// include a UTXO.
func (a *Account) CalculateAddressBalance(addr btcutil.Address, confirms int) float64 {
bs, err := GetCurBlock()
if bs.Height == int32(btcutil.BlockHeightUnknown) || err != nil {
return 0.
}
var bal btcutil.Amount
unspent, err := a.TxStore.UnspentOutputs()
if err != nil {
return 0.
}
for _, credit := range unspent {
if credit.Confirmed(confirms, bs.Height) {
// We only care about the case where len(addrs) == 1, and err
// will never be non-nil in that case
_, addrs, _, _ := credit.Addresses(activeNet.Params)
if len(addrs) != 1 {
continue
}
if addrs[0].EncodeAddress() == addr.EncodeAddress() {
bal += credit.Amount()
}
}
}
return bal.ToUnit(btcutil.AmountBTC)
}
// TotalReceived iterates through an account's transaction history, returning the
// total amount of bitcoins received for any account address. Amounts received
// through multisig transactions are ignored.
func (a *Account) TotalReceived(confirms int) (float64, error) {
bs, err := GetCurBlock()
if err != nil {
return 0, err
}
var amount btcutil.Amount
for _, r := range a.TxStore.Records() {
for _, c := range r.Credits() {
// Ignore change.
if c.Change() {
continue
}
// Tally if the appropiate number of block confirmations have passed.
if c.Confirmed(confirms, bs.Height) {
amount += c.Amount()
}
}
}
return amount.ToUnit(btcutil.AmountBTC), nil
}