public function testUnspentOutputFinder()
{
//some addresses with known unspent outputs, and some without any
$addresses = array('2NG3QEhJc1xzN5qxPdNAZfGaTdGAv3ixMbH', '2NA7zpiq5PcYUx6oraEwz8zPzn6HefSvdLA', '2Mu1xrQAEd8LsiRHNvgXDaU8kQU5WKqzCq7', '2N9ijhGSX3kGbe16RMCQ2hviH8RLAVdaqZg');
$blockchainDataService = new BlocktrailBitcoinService("MY_APIKEY", "MY_APISECRET", "BTC", true, 'v1');
$unspenOutputFinder = new UnspentOutputFinder($blockchainDataService);
//get unspent outputs for an array of addresses
$result = $unspenOutputFinder->getUTXOs($addresses);
$this->assertEquals(3, count($result), "expected results for 3 of the 4 given addresses");
$this->assertArrayHasKey('2NG3QEhJc1xzN5qxPdNAZfGaTdGAv3ixMbH', $result);
$this->assertArrayHasKey('2NA7zpiq5PcYUx6oraEwz8zPzn6HefSvdLA', $result);
$this->assertArrayHasKey('2N9ijhGSX3kGbe16RMCQ2hviH8RLAVdaqZg', $result);
$this->assertEquals(2, count($result['2NA7zpiq5PcYUx6oraEwz8zPzn6HefSvdLA']), "expected address to have 2 unspent outputs");
$this->assertArrayHasKey('hash', $result['2NA7zpiq5PcYUx6oraEwz8zPzn6HefSvdLA'][0]);
$this->assertArrayHasKey('index', $result['2NA7zpiq5PcYUx6oraEwz8zPzn6HefSvdLA'][0]);
$this->assertArrayHasKey('value', $result['2NA7zpiq5PcYUx6oraEwz8zPzn6HefSvdLA'][0]);
$this->assertArrayHasKey('script_hex', $result['2NA7zpiq5PcYUx6oraEwz8zPzn6HefSvdLA'][0]);
$this->assertEquals(10000000, $result['2NA7zpiq5PcYUx6oraEwz8zPzn6HefSvdLA'][0]['value']);
$this->assertEquals(10000000, $result['2NA7zpiq5PcYUx6oraEwz8zPzn6HefSvdLA'][1]['value']);
$total = $result['2NG3QEhJc1xzN5qxPdNAZfGaTdGAv3ixMbH'][0]['value'] + $result['2N9ijhGSX3kGbe16RMCQ2hviH8RLAVdaqZg'][0]['value'] + $result['2NA7zpiq5PcYUx6oraEwz8zPzn6HefSvdLA'][0]['value'] + $result['2NA7zpiq5PcYUx6oraEwz8zPzn6HefSvdLA'][1]['value'];
$this->assertEquals(40000000, $total);
}
/**
* discover funds in the wallet
*
* @param int $increment how many addresses to scan at a time
* @return array
*/
public function discoverWalletFunds($increment = 200)
{
$totalBalance = 0;
$totalUTXOs = 0;
$totalAddressesGenerated = 0;
$addressUTXOs = array();
//addresses and their utxos, paths and redeem scripts
//for each blocktrail pub key, do fund discovery on batches of addresses
foreach ($this->blocktrailPublicKeys as $keyIndex => $blocktrailPubKey) {
$i = 0;
do {
if ($this->debug) {
echo "\ngenerating {$increment} addresses using blocktrail key index {$keyIndex}\n";
}
$addresses = $this->createBatchAddresses($i, $increment, $keyIndex);
$totalAddressesGenerated += count($addresses);
if ($this->debug) {
echo "\nstarting fund discovery for {$increment} addresses";
}
//get the unspent outputs for this batch of addresses
$utxos = $this->utxoFinder->getUTXOs(array_keys($addresses));
//save the address utxos, along with relevant path and redeem script
foreach ($utxos as $address => $outputs) {
$addressUTXOs[$address] = array('path' => $addresses[$address]['path'], 'redeem' => $addresses[$address]['redeem'], 'utxos' => $outputs);
$totalUTXOs += count($outputs);
//add up the total utxo value for all addresses
$totalBalance = array_reduce($outputs, function ($carry, $output) {
return $carry += $output['value'];
}, $totalBalance);
if ($this->debug) {
echo "\nfound " . count($outputs) . " unspent outputs in address {$address}";
}
}
//increment for next batch
$i += $increment;
} while (count($utxos) > 0);
}
if ($this->debug) {
echo "\nfinished fund discovery: {$totalBalance} Satoshi (in {$totalUTXOs} outputs) found when searching {$totalAddressesGenerated} addresses";
}
$this->sweepData = ['utxos' => $addressUTXOs, 'count' => $totalUTXOs, 'balance' => $totalBalance, 'addressesSearched' => $totalAddressesGenerated];
return $this->sweepData;
}