Laratrade\Indicators\AverageTrueRangeIndicator::__invoke()

Complexity

Conditions	4
Paths	6

Size

Total Lines	33
Code Lines	21

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	20

Importance

Changes

0

<?php
    public function __invoke(Collection $ohlcv, int $timePeriod = 14): int
    {
        $close      = $ohlcv->get('close');
        $closeCount = count($close);

        if ($timePeriod > $closeCount) {
            $timePeriod = round($closeCount / 2);
        }

        $atr = trader_atr(
            $ohlcv->get('high'),
            $ohlcv->get('low'),
            $ohlcv->get('close'),
            $timePeriod
        );

        throw_unless($atr, NotEnoughDataException::class);

        $currentValue  = array_pop($close);
        $previousValue = array_pop($close);
        $atrValue      = array_pop($atr);

        $upside   = ($currentValue - ($previousValue + $atrValue));
        $downside = ($previousValue - ($currentValue + $atrValue));

        if ($upside > 0) {
            return static::BUY;
        } elseif ($downside > 0) {
            return static::SELL;
        }

        return static::HOLD;
    }
}