function syncVaderPrice()
    public
    override
    returns (
        uint256[] memory pastLiquidityWeights,
        uint256 pastTotalLiquidityWeight
    )
{
    uint256 _totalLiquidityWeight;
    uint256 totalPairs = vaderPairs.length;
    pastLiquidityWeights = new uint256[](totalPairs);
    pastTotalLiquidityWeight = totalLiquidityWeight[uint256(Paths.VADER)];

    for (uint256 i; i < totalPairs; ++i) {
        IUniswapV2Pair pair = vaderPairs[i];
        ExchangePair storage pairData = twapData[address(pair)];
        // @audit-info lastMeasurement is set in _updateVaderPrice to block.timestamp
        uint256 timeElapsed = block.timestamp - pairData.lastMeasurement;
        // @audit-info update period depends on pair
        // @audit-issue if update period not reached => does not initialize pastLiquidityWeights[i]
        if (timeElapsed < pairData.updatePeriod) continue;

        uint256 pastLiquidityEvaluation = pairData.pastLiquidityEvaluation;
        uint256 currentLiquidityEvaluation = _updateVaderPrice(
            pair,
            pairData,
            timeElapsed
        );

        pastLiquidityWeights[i] = pastLiquidityEvaluation;

        pairData.pastLiquidityEvaluation = currentLiquidityEvaluation;

        _totalLiquidityWeight += currentLiquidityEvaluation;
    }

    totalLiquidityWeight[uint256(Paths.VADER)] = _totalLiquidityWeight;
}
