protected function buildAdjustments($type, Model\AdjustableInterface $adjustable, array $data, $persistence = false)
    {
        Model\AdjustmentTypes::isValidType($type);

        $change = false;

        // Generate adjustments
        $newAdjustments = [];
        foreach ($data as $d) {
            $adjustment = $this->saleFactory->createAdjustmentFor($adjustable);
            $adjustment
                ->setType($type)
                ->setMode($d->getMode())
                ->setDesignation($d->getDesignation())
                ->setAmount($d->getAmount())
                ->setImmutable($d->isImmutable());

            $newAdjustments[] = $adjustment;
        }

        // Current adjustments
        $oldAdjustments = $adjustable->getAdjustments($type);

        // Remove current adjustments that do not match any generated adjustments
        foreach ($oldAdjustments as $oldAdjustment) {
            // Skip non-immutable adjustment as they have been defined by the user.
            if (!$oldAdjustment->isImmutable()) {
                continue;
            }

            // Look for a corresponding adjustment
            foreach ($newAdjustments as $index => $newAdjustment) {
                if ($oldAdjustment->equals($newAdjustment)) {
                    // Remove the generated adjustment
                    unset($newAdjustments[$index]);
                    continue 2;
                }
            }

            // No matching generated adjustment found : remove the current.
            $adjustable->removeAdjustment($oldAdjustment);

            if ($persistence) {
                $this->persistenceHelper->remove($oldAdjustment, true);
            }

            $change = true;
        }

        // Adds the remaining generated adjustments
        foreach ($newAdjustments as $newAdjustment) {
            $adjustable->addAdjustment($newAdjustment);

            if ($persistence) {
                $this->persistenceHelper->persistAndRecompute($newAdjustment, true);
            }

            $change = true;
        }

        return $change;
    }