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fix: guard pool metrics against NaN/Infinity/undefined values (fixes #6) #240

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fix: guard pool metrics against NaN/Infinity/undefined values (fixes #6) #240

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34 changes: 26 additions & 8 deletions src/components/pool/Pools.svelte
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Original file line number Diff line number Diff line change
Expand Up @@ -31,12 +31,30 @@

function setFeeAPYs(_balances) {
if (!_balances) return;
if (_balances['ETH']) feeAPY['ETH'] = 100 * 95 * 12 / _balances['ETH']; // Approx 95 ETH per month in fees
if (_balances['USDC']) feeAPY['USDC'] = 100 * 100000 * 12 / _balances['USDC']; // Approx 100,000 USDC per month in fees
// Approx 95 ETH per month in fees — guard against zero/negative balances
if (_balances['ETH'] && _balances['ETH'] > 0) {
feeAPY['ETH'] = 100 * 95 * 12 / _balances['ETH'];
} else {
feeAPY['ETH'] = null;
}
// Approx 100,000 USDC per month in fees
if (_balances['USDC'] && _balances['USDC'] > 0) {
feeAPY['USDC'] = 100 * 100000 * 12 / _balances['USDC'];
} else {
feeAPY['USDC'] = null;
}
}

$: setFeeAPYs($poolBalances);

/** Safely format a metric value, returning fallback for NaN/Infinity/null/undefined */
function safeMetric(val, fallback = '-') {
if (val === null || val === undefined) return fallback;
const n = Number(val);
if (!isFinite(n)) return fallback; // catches both NaN and Infinity
return formatForDisplay(n);
}

</script>

<style>
Expand Down Expand Up @@ -165,12 +183,12 @@
<div class='row'>
<div class='cell la'><img src={`/asset-logos/${asset}.svg`} /> {asset}</div>
<div class='cell'><span>{numberWithCommas($poolBalances[asset]) || 0}<br/><span class='grayed'>${formatForDisplay(getAmountInUsd(asset, $poolBalances[asset], $prices))}</span></span></div>
<div class='cell'>{formatForDisplay(feeAPY[asset])}%</div>
<div class='cell'>30%+</div>
<div class='cell'>{numberWithCommas($globalUPLs[asset])}</div>
<div class='cell'>{numberWithCommas($bufferBalances[asset])}</div>
<div class='cell highlighted'><span>{numberWithCommas($poolStakes[asset]) || 0}<br><span class='grayed'>${getAmountInUsd(asset, $poolStakes[asset], $prices)}</span></span></div>
<div class='cell highlighted'>{$poolBalances[asset] == 0 ? 'N/A' : formatForDisplay(($poolStakes[asset])/$poolBalances[asset] *100 )+ '%'}</div>
<div class='cell'>{safeMetric(feeAPY[asset]) + (feeAPY[asset] != null ? '%' : '')}</div>
<div class='cell'>30%+</div>
<div class='cell'>{numberWithCommas($globalUPLs[asset]) || 0}</div>
<div class='cell'>{numberWithCommas($bufferBalances[asset])}</div>
<div class='cell highlighted'><span>{numberWithCommas($poolStakes[asset]) || 0}<br><span class='grayed'>${getAmountInUsd(asset, $poolStakes[asset], $prices)}</span></span></div>
<div class='cell highlighted'>{$poolBalances[asset] == 0 ? 'N/A' : safeMetric(($poolStakes[asset])/$poolBalances[asset] *100) + '%'}</div>
</div>
{/each}
<div class='row'>
Expand Down