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<?php |
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/** |
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* This file is part of Poloniex PHP SDK. |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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* |
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* @copyright 2017-2018 Chasovskih Grisha <[email protected]> |
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* @license https://github.com/signulls/poloniex-php-sdk/blob/master/LICENSE MIT |
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*/ |
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namespace Poloniex; |
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use Poloniex\Api\{PublicApi, TradingApi}; |
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use Poloniex\Exception\PoloniexException; |
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/** |
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* Class PoloniexManager |
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* |
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* @author Grisha Chasovskih <[email protected]> |
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*/ |
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final class PoloniexManager |
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{ |
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/** |
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* @var PublicApi |
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*/ |
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private $publicApi; |
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/** |
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* @var TradingApi |
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*/ |
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private $tradingApi; |
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/** |
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* PoloniexManager constructor. |
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* |
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* @param PublicApi $publicApi |
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* @param TradingApi $tradingApi |
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*/ |
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public function __construct(PublicApi $publicApi, TradingApi $tradingApi) |
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{ |
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$this->publicApi = $publicApi; |
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$this->tradingApi = $tradingApi; |
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} |
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/** |
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* Get total balance for given currency |
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* |
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* @param ApiKey $apiKey User credentials |
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* @param string $currency Any available currency at market (DOGE, LTC, ETH, USDT, XMR etc..) |
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* |
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* @return float |
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* @throws PoloniexException |
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*/ |
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public function getBalance(ApiKey $apiKey, string $currency = 'BTC'): float |
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{ |
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$currency = strtoupper($currency); |
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$completeBalances = $this->tradingApi->setApiKey($apiKey)->returnCompleteBalances(); |
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$balance = 0; |
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foreach ($completeBalances as $coin => $completeBalance) { |
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$balance += $completeBalance->btcValue; |
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} |
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if ($currency !== 'BTC') { |
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$ticker = $this->publicApi->returnTicker(); |
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$btcCoin = 'BTC_' . $currency; |
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$coinBtc = $currency . '_BTC'; |
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if (isset($ticker[$coinBtc])) { |
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$balance *= $ticker[$coinBtc]->last; |
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} elseif (isset($ticker[$btcCoin])) { |
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$balance /= $ticker[$btcCoin]->last; |
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} else { |
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throw new PoloniexException(sprintf('Invalid currency given: %s', $currency)); |
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} |
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} |
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return $balance; |
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} |
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/** |
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* Get available balance for given coin. |
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* You can use available balance for trades. |
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* |
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* @param ApiKey $apiKey |
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* @param string $coin |
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* |
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* @return float|null |
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*/ |
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public function getAvailableBalance(ApiKey $apiKey, string $coin):? float |
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{ |
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$balances = $this->tradingApi->setApiKey($apiKey)->returnCompleteBalances(); |
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if (!isset($balances[$coin])) { |
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throw new PoloniexException(sprintf('Invalid coin given: %s', $coin)); |
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} |
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return $balances[$coin]->available; |
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} |
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/** |
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* Get asks for given trade pair |
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* |
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* @param string $pair |
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* |
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* @return float[] Keys are prices and values are amount of trades |
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*/ |
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public function asks(string $pair): array |
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{ |
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$asks = []; |
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foreach ($this->publicApi->returnOrderBook($pair)->asks as $ask) { |
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$asks[$ask[0]] = $ask[1]; |
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} |
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ksort($asks); |
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return $asks; |
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} |
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/** |
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* Get lowest ask for given trade pair |
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* |
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* @param string $pair |
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* |
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* @return float |
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*/ |
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public function getLowestAsk(string $pair): float |
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{ |
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return min(array_keys($this->asks($pair))); |
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} |
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/** |
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* Get bids |
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* |
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* @param string $pair |
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* |
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* @return float[] Keys are prices and values are amount of trades |
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*/ |
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public function bids(string $pair): array |
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{ |
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$bids = []; |
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foreach ($this->publicApi->returnOrderBook($pair)->bids as $bid) { |
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$bids[$bid[0]] = $bid[1]; |
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} |
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ksort($bids); |
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return $bids; |
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} |
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/** |
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* Get highest bid |
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* |
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* @param string $pair |
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* |
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* @return float |
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*/ |
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public function getHighestBid(string $pair): float |
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{ |
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return max(array_keys($this->bids($pair))); |
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} |
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} |