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<?php |
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namespace Mokka\Strategy\Indicator; |
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use Mokka\Action\Action; |
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use Mokka\Action\ActionInterface; |
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use Mokka\Action\BuyAction; |
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use Mokka\Action\IdleAction; |
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use Mokka\Action\SellAction; |
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use Mokka\Strategy\StrategyAbstract; |
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use Mokka\Strategy\IndicatorInterface; |
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class Percent extends StrategyAbstract implements IndicatorInterface |
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{ |
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const FIXER = 100000000; |
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/** |
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* @param $symbol |
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* @param $lastAction Action last trade action |
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* @return ActionInterface |
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*/ |
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public function calculate($symbol, Action $lastAction) : ActionInterface |
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{ |
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//current price of symbol |
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$currentPrice = $this->exchange->getPrice($symbol) * self::FIXER; |
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$lastActionPrice = $lastAction->getActionPrice() * self::FIXER; |
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//logic is here |
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$calculatedPercentOfPrice = ($lastActionPrice * $this->options['default_percent']) / 100; |
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//buy signal |
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if ( |
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$lastAction->getType() == ActionInterface::TYPE_SELL |
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&& |
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$currentPrice <= $lastActionPrice - $calculatedPercentOfPrice |
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) { |
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$action = new BuyAction(); |
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$action->setType(ActionInterface::TYPE_BUY); |
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//sell signal |
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} elseif ( |
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$lastAction->getType() == ActionInterface::TYPE_BUY |
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&& |
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$currentPrice >= $calculatedPercentOfPrice + $lastActionPrice |
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) { |
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$action = new SellAction(); |
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$action->setType(ActionInterface::TYPE_SELL); |
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} else { |
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$action = new IdleAction(); |
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$action->setType(ActionInterface::TYPE_IDLE); |
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} |
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$lastActionPrice = number_format($lastActionPrice / self::FIXER, 8, '.', ''); |
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$currentPrice = number_format($currentPrice / self::FIXER, 8, '.', ''); |
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$action->setPreviousPrice($lastActionPrice); |
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$action->setActionPrice($currentPrice); |
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return $action; |
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} |
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} |
bencagri /
mokka
