adasd

custom/apps/mining-checker/assets/js/app.js

@@ -198,18 +198,43 @@
     }).format(Number(value));
   }
 
-  function deriveDailyCostAmount(totalCostAmount, runtimeMonths) {
-    const amount = Number(totalCostAmount);
+  function calendarRuntimeEnd(startAt, runtimeMonths) {
+    const start = parseStoredUtcDate(startAt);
     const months = Number(runtimeMonths);
-    if (!Number.isFinite(amount) || !Number.isFinite(months) || months <= 0) {
+    if (!start || !Number.isInteger(months) || months <= 0) {
       return null;
     }
 
-    const runtimeDays = months * 30.4375;
-    if (!Number.isFinite(runtimeDays) || runtimeDays <= 0) {
+    const targetMonthIndex = (start.getUTCFullYear() * 12) + start.getUTCMonth() + months;
+    const targetYear = Math.floor(targetMonthIndex / 12);
+    const targetMonth = targetMonthIndex % 12;
+    const lastDayOfTargetMonth = new Date(Date.UTC(targetYear, targetMonth + 1, 0)).getUTCDate();
+    return new Date(Date.UTC(
+      targetYear,
+      targetMonth,
+      Math.min(start.getUTCDate(), lastDayOfTargetMonth),
+      start.getUTCHours(),
+      start.getUTCMinutes(),
+      start.getUTCSeconds(),
+      start.getUTCMilliseconds()
+    ));
+  }
+
+  function runtimeDaysForEntry(startAt, runtimeMonths) {
+    const start = parseStoredUtcDate(startAt);
+    const end = calendarRuntimeEnd(startAt, runtimeMonths);
+    if (!start || !end) {
       return null;
     }
+    return (end.getTime() - start.getTime()) / 86400000;
+  }
 
+  function deriveDailyCostAmount(totalCostAmount, runtimeMonths, startsAt) {
+    const amount = Number(totalCostAmount);
+    const runtimeDays = runtimeDaysForEntry(startsAt, runtimeMonths);
+    if (!Number.isFinite(amount) || !Number.isFinite(runtimeDays) || runtimeDays <= 0) {
+      return null;
+    }
     return amount / runtimeDays;
   }
 
@@ -356,8 +381,10 @@
       return { endAt: null, isCovered: true };
     }
 
-    const runtimeMs = normalizedRuntime * 30.4375 * 86400 * 1000;
-    const endAtDate = new Date(startDate.getTime() + runtimeMs);
+    const endAtDate = calendarRuntimeEnd(startAt, normalizedRuntime);
+    if (!endAtDate) {
+      return { endAt: null, isCovered: true };
+    }
     return {
       endAt: endAtDate.toISOString(),
       isCovered: !!autoRenew || Date.now() <= endAtDate.getTime(),
@@ -582,6 +609,7 @@
           current_effective_coins: null,
           wallet_balances: {},
           wallet_balance_current_asset: null,
+          wallet_balance_current_asset_direct: null,
           holdings_current_asset: null,
         },
         current_hashrate_mh: null,
@@ -1438,10 +1466,7 @@
         baseAmount = fallbackUsdReference;
         baseCurrency = 'USD';
       }
-      const storedDailyAmount = Number(miner.daily_cost_amount);
-      const dailyAmount = Number.isFinite(storedDailyAmount) && storedDailyAmount > 0
-        ? storedDailyAmount
-        : deriveDailyCostAmount(miner.total_cost_amount, miner.runtime_months);
+      const dailyAmount = deriveDailyCostAmount(miner.total_cost_amount, miner.runtime_months, miner.purchased_at);
       const dailyCurrency = String(miner.daily_cost_currency || miner.currency || '').toUpperCase();
       const dailyReportAmount = Number.isFinite(dailyAmount) && dailyCurrency
         ? (dailyCurrency === reportCurrency ? dailyAmount : convertCurrencyValue(dailyAmount, dailyCurrency, reportCurrency))
@@ -1450,7 +1475,7 @@
       const settledAmount = Number(miner.settled_value_amount);
       const settledCurrency = String(miner.settled_value_currency || '').toUpperCase();
       const hasHistoricalSettlement = Number.isFinite(settledAmount) && settledAmount > 0 && settledCurrency;
-      const runtimeDays = Number(miner.runtime_months) * 30.4375;
+      const runtimeDays = runtimeDaysForEntry(miner.purchased_at, miner.runtime_months);
       const costPerKhAmount = totalHashrateKh > 0 && Number.isFinite(runtimeDays) && runtimeDays > 0
         ? ((paymentType === 'crypto' && hasHistoricalSettlement ? settledAmount : Number(miner.total_cost_amount)) / totalHashrateKh / runtimeDays)
         : null;
@@ -1489,16 +1514,13 @@
       };
     }).concat(currentCostPlans.map((plan) => {
       const coverage = entryCoverageMeta(plan.starts_at, plan.runtime_months, plan.auto_renew);
-      const storedDailyAmount = Number(plan.daily_cost_amount);
-      const dailyAmount = Number.isFinite(storedDailyAmount) && storedDailyAmount > 0
-        ? storedDailyAmount
-        : deriveDailyCostAmount(plan.total_cost_amount, plan.runtime_months);
+      const dailyAmount = deriveDailyCostAmount(plan.total_cost_amount, plan.runtime_months, plan.starts_at);
       const dailyCurrency = String(plan.daily_cost_currency || plan.currency || '').toUpperCase();
       const dailyReportAmount = Number.isFinite(dailyAmount) && dailyCurrency
         ? (dailyCurrency === reportCurrency ? dailyAmount : convertCurrencyValue(dailyAmount, dailyCurrency, reportCurrency))
         : null;
       const totalHashrateKh = toKhPerSecond(plan.mining_speed_value, plan.mining_speed_unit) + toKhPerSecond(plan.bonus_speed_value, plan.bonus_speed_unit);
-      const runtimeDays = Number(plan.runtime_months) * 30.4375;
+      const runtimeDays = runtimeDaysForEntry(plan.starts_at, plan.runtime_months);
       const costPerKhAmount = totalHashrateKh > 0 && Number.isFinite(runtimeDays) && runtimeDays > 0
         ? Number(plan.total_cost_amount) / totalHashrateKh / runtimeDays
         : null;
@@ -3206,12 +3228,11 @@
       const perDayLabel = `${currentCoinCurrency} pro Tag`;
 
       if (activeTab === 'overview') {
-        const latestValue = latest ? convertMeasurementMoney(latest, latest.current_value, reportCurrency) : null;
         const latestPriceSource = latest && latest.effective_price_per_coin !== null && latest.effective_price_per_coin !== undefined
           ? latest.effective_price_per_coin
           : (latest ? latest.price_per_coin : null);
-        const latestPrice = latest && latestPriceSource !== null && latestPriceSource !== undefined
-          ? convertMeasurementMoney(latest, latestPriceSource, reportCurrency)
+        const latestCoinPriceUsd = latest && latestPriceSource !== null && latestPriceSource !== undefined
+          ? convertMeasurementMoney(latest, latestPriceSource, 'USD')
           : null;
         const dailyRevenue = latest ? convertMeasurementMoney(latest, latest.theoretical_daily_revenue, reportCurrency) : null;
         const dailyProfit = latest ? convertMeasurementMoney(latest, latest.theoretical_daily_profit, reportCurrency) : null;
@@ -3225,7 +3246,6 @@
           : null;
         const investedCapital = latest ? convertMeasurementMoney(latest, latest.cash_invested_capital ?? latest.invested_capital, reportCurrency) : null;
         const reinvestedCapital = latest ? convertMeasurementMoney(latest, latest.reinvested_capital, reportCurrency) : null;
-        const walletValue = latest ? convertMeasurementMoney(latest, latest.wallet_value, reportCurrency) : null;
         const totalHoldingsValue = latest ? convertMeasurementMoney(latest, latest.total_holdings_value, reportCurrency) : null;
         const earnedValue = latest ? convertMeasurementMoney(latest, latest.earned_value, reportCurrency) : null;
         const settledCryptoSpendValue = latest ? convertMeasurementMoney(latest, latest.settled_crypto_spend_value, reportCurrency) : null;
@@ -3238,10 +3258,14 @@
           : null;
         const breakEvenReached = breakEvenRemainingAmount !== null && breakEvenRemainingAmount <= 0;
         const breakEvenEta = latest && latest.break_even_eta_at ? fmtDate(latest.break_even_eta_at) : null;
-        const walletBalanceCurrentAsset = payload?.summary?.payouts?.wallet_balance_current_asset;
         const walletBalanceCurrentAssetDirect = payload?.summary?.payouts?.wallet_balance_current_asset_direct;
-        const holdingsCurrentAsset = payload?.summary?.payouts?.holdings_current_asset;
         const minerVisibleCoins = latest ? Number(latest.coins_total_visible ?? latest.coins_total) : null;
+        const walletCurrentAssetCoins = walletBalanceCurrentAssetDirect !== null && walletBalanceCurrentAssetDirect !== undefined
+          ? Number(walletBalanceCurrentAssetDirect)
+          : null;
+        const totalCurrentAssetCoins = Number.isFinite(walletCurrentAssetCoins) && Number.isFinite(minerVisibleCoins)
+          ? walletCurrentAssetCoins + minerVisibleCoins
+          : null;
         const minerVisibleValue = latest && latest.current_value !== null && latest.current_value !== undefined
           ? Number(latest.current_value)
           : (
@@ -3322,20 +3346,21 @@
                 : 'Noch kein Transfer vor dem letzten Upload',
             }),
             h(StatCard, {
-              key: 'value',
-              label: 'Bisheriger Wert',
-              value: earnedValue !== null ? fmtMoney(earnedValue, reportCurrency) : 'n/a',
+              key: 'current-asset-balance',
+              label: `${currentCoinCurrency} Bestand`,
+              value: totalCurrentAssetCoins !== null ? `${fmtNumber(totalCurrentAssetCoins, 6)} ${currentCoinCurrency}` : 'n/a',
               sub: [
-                holdingsCurrentAsset !== null && holdingsCurrentAsset !== undefined
-                  ? `Variabel ${fmtNumber(holdingsCurrentAsset, 6)} ${currentCoinCurrency}`
+                walletCurrentAssetCoins !== null && Number.isFinite(walletCurrentAssetCoins)
+                  ? `Wallet ${fmtNumber(walletCurrentAssetCoins, 6)} ${currentCoinCurrency}`
                   : null,
-                latestValue !== null ? `Miner ${fmtMoney(latestValue, reportCurrency)}` : null,
-                walletValue !== null ? `Wallet ${fmtMoney(walletValue, reportCurrency)}` : null,
-                settledCryptoSpendValue !== null ? `Fix ausgegeben ${fmtMoney(settledCryptoSpendValue, reportCurrency)}` : null,
-                latestPrice !== null
-                  ? `Kurs ${fmtNumber(latestPrice, 6)} ${reportCurrency}${latest && latest.price_is_fallback ? ' · Fallback aus letztem Kurs' : ''}`
+                Number.isFinite(minerVisibleCoins)
+                  ? `Miner ${fmtNumber(minerVisibleCoins, 6)} ${currentCoinCurrency}`
                   : null,
-              ].filter(Boolean).join(' · ') || 'Kein umrechenbarer Kurs am letzten Punkt',
+                totalCurrentAssetCoins !== null ? `Gesamt ${fmtNumber(totalCurrentAssetCoins, 6)} ${currentCoinCurrency}` : null,
+                latestCoinPriceUsd !== null
+                  ? `Letzter ${currentCoinCurrency}-Kurs ${fmtNumber(latestCoinPriceUsd, 6)} USD${latest && latest.price_is_fallback ? ' · Fallback aus letztem Kurs' : ''}`
+                  : null,
+              ].filter(Boolean).join(' · ') || 'Kein Wallet- oder Mining-Bestand vorhanden',
             }),
             h(StatCard, {
               key: 'preferred-offer-target',

custom/apps/mining-checker/docs/README.md

@@ -4,6 +4,8 @@
 
 Das Modul erfasst Mining-Messpunkte der aktuell konfigurierten Kryptowaehrung, analysiert OCR-Vorschlaege aus Screenshots, speichert Messreihen projektbezogen und berechnet Performance-, Kurs- und Zielmetriken. `DOGE` ist lediglich die aktuelle Konfiguration, nicht eine fest verdrahtete Fachregel.
 
+Im Startseiten-Ueberblick zeigt die Kachel `DOGE Bestand` den direkten Wallet-Bestand, den nach Transfers bereinigten Miner-Bestand, deren Summe sowie den letzten Coin/USD-Kurs. Bei einer geaenderten Mining-Waehrung werden Beschriftung und Werte entsprechend dieser Waehrung gefuehrt.
+
 ## Ordnerstruktur
 
 ```text
@@ -139,8 +141,8 @@ Diese Regeln sind bei jeder Erweiterung der Wallet-, Miner- oder Uebersichtslogi
 7. Der angezeigte bisherige Wert trennt variable Werte (Coins im Mining-Tool und Wallet zum aktuellen Kurs) von fixen Werten (bereits mit Krypto bezahlte Miner zum Ausgabezeitpunkt). Die Gesamtsumme besteht aus beiden Kategorien.
 8. Jede neue feste Krypto-Buchung referenziert die `fetch_id` des Moduls `fx-rates`. Der Mining-Checker fuehrt keine eigene Kurstabelle. Umrechnungen in andere Berichtswährungen verwenden fuer fixe Werte denselben historischen API-Snapshot.
 9. Wird ein gemieteter Miner geloescht, wird sein kompletter Datensatz entfernt: Mietkosten, feste Krypto-Bewertung, FX-Referenz und der daraus abgeleitete Wallet-Abzug entfallen. Der Miner beeinflusst danach weder Walletbestand noch Ausgaben, Reinvest, Hashrate oder Break-even. Basis-Angebote, Mining-Uploads und andere Wallet-Buchungen bleiben unveraendert.
-10. `Kosten/kH/s/Tag` ist ein laufzeitbereinigter Vergleichswert: feste historische Gesamtkosten geteilt durch die gesamte Hashrate einschliesslich Bonus und die Laufzeit in Tagen (`Monate x 30,4375`). Fuer Krypto-Mieten sind das `settled_value_amount / (Basis-Hashrate + Bonus-Hashrate) / Laufzeittage` in `settled_value_currency`; der aktuelle Coin-Kurs und ein Angebots-Referenzpreis duerfen diese Kennzahl nicht beeinflussen. Fuer FIAT-Mieten gilt derselbe Quotient mit dem tatsaechlich gezahlten FIAT-Betrag und dessen Zahlungswaehrung.
-11. Die Startseitenkennzahl `Tageskosten` verteilt jede aktive Miete auf ihre Laufzeit (`Gesamtkosten / Laufzeittage`) und beruecksichtigt keine bereits abgelaufenen Miner. Bei Krypto-Mieten verwendet sie den festen Mietwert und dessen zugeordnete historische `fx-rates.fetch_id`, nicht den aktuellen Coin-Kurs.
+10. `Kosten/kH/s/Tag` ist ein laufzeitbereinigter Vergleichswert: feste historische Gesamtkosten geteilt durch die gesamte Hashrate einschliesslich Bonus und die exakten Kalendertage zwischen Mietzeitpunkt und Laufzeitende. Das Laufzeitende entsteht durch das Addieren der gebuchten Kalendermonate; bei kuerzeren Zielmonaten wird auf deren letzten Kalendertag begrenzt. Fuer Krypto-Mieten sind das `settled_value_amount / (Basis-Hashrate + Bonus-Hashrate) / Laufzeittage` in `settled_value_currency`; der aktuelle Coin-Kurs und ein Angebots-Referenzpreis duerfen diese Kennzahl nicht beeinflussen. Fuer FIAT-Mieten gilt derselbe Quotient mit dem tatsaechlich gezahlten FIAT-Betrag und dessen Zahlungswaehrung.
+11. Die Startseitenkennzahl `Tageskosten` verteilt jede aktive Miete auf ihre exakte Kalenderlaufzeit (`Gesamtkosten / Kalendertage`) und beruecksichtigt keine bereits abgelaufenen Miner. Bei Krypto-Mieten verwendet sie den festen Mietwert und dessen zugeordnete historische `fx-rates.fetch_id`, nicht den aktuellen Coin-Kurs. Ein Tageswert fuer ein Angebot ohne Mietdatum wird nicht angezeigt, weil seine exakte Kalenderlaufzeit erst bei der Anmietung feststeht.
 
 ### Historische Krypto-Miner
 

custom/apps/mining-checker/src/Domain/AnalyticsService.php

@@ -700,7 +700,7 @@ final class AnalyticsService
                 continue;
             }
 
-            $convertedDailyCost = $this->entryDailyCostInCurrency($entry, $runtimeMonths, $currency, $fxContext);
+            $convertedDailyCost = $this->entryDailyCostInCurrency($entry, $runtimeMonths, $currency, $fxContext, $startField);
             if ($convertedDailyCost === null) {
                 continue;
             }
@@ -712,9 +712,9 @@ final class AnalyticsService
         return $matched ? $dailyTotal : null;
     }
 
-    private function entryDailyCostInCurrency(array $entry, int $runtimeMonths, string $targetCurrency, ?array $fxContext = null): ?float
+    private function entryDailyCostInCurrency(array $entry, int $runtimeMonths, string $targetCurrency, ?array $fxContext = null, string $startField = 'starts_at'): ?float
     {
-        $runtimeDays = $runtimeMonths * 30.4375;
+        $runtimeDays = $this->entryRuntimeDays($entry, $startField);
         if ($runtimeDays <= 0) {
             return null;
         }
@@ -762,20 +762,16 @@ final class AnalyticsService
             return null;
         }
 
-        $storedDailyCost = is_numeric($entry['daily_cost_amount'] ?? null) ? (float) $entry['daily_cost_amount'] : null;
         $entryCurrency = strtoupper(trim((string) ($entry['daily_cost_currency'] ?? $entry['currency'] ?? '')));
         if ($entryCurrency === '') {
             return null;
         }
 
-        $dailyAmount = $storedDailyCost;
-        if ($dailyAmount === null || $dailyAmount <= 0) {
-            $amount = is_numeric($entry['total_cost_amount'] ?? null) ? (float) $entry['total_cost_amount'] : null;
-            if ($amount === null || $amount <= 0) {
-                return null;
-            }
-            $dailyAmount = $amount / $runtimeDays;
+        $amount = is_numeric($entry['total_cost_amount'] ?? null) ? (float) $entry['total_cost_amount'] : null;
+        if ($amount === null || $amount <= 0) {
+            return null;
         }
+        $dailyAmount = $amount / $runtimeDays;
 
         return $this->convertAmount($dailyAmount, $entryCurrency, $targetCurrency, $fxContext);
     }
@@ -1094,8 +1090,10 @@ final class AnalyticsService
             return false;
         }
 
-        $runtimeDays = $runtimeMonths * 30.4375;
-        $endTs = (int) round($startTs + ($runtimeDays * 86400));
+        $endTs = $this->entryCoverageEndTimestamp($entry, $startField);
+        if ($endTs === null) {
+            return true;
+        }
         return $this->entryAutoRenewEnabled($entry) || $checkTs <= $endTs;
     }
 
@@ -1586,7 +1584,10 @@ final class AnalyticsService
 
             $runtimeMonths = (int) ($plan['runtime_months'] ?? 0);
             if ($runtimeMonths > 0 && is_numeric($plan['total_cost_amount'] ?? null)) {
-                $runtimeDays = $runtimeMonths * 30.4375;
+                $runtimeDays = $this->entryRuntimeDays($plan);
+                if ($runtimeDays <= 0) {
+                    continue;
+                }
                 $dailyCost = $this->convertAmount((float) $plan['total_cost_amount'] / $runtimeDays, (string) ($plan['currency'] ?? ''), $currency, $latest);
                 if ($dailyCost !== null) {
                     $cost += $dailyCost * $coveredDays;
@@ -1610,7 +1611,10 @@ final class AnalyticsService
 
             $runtimeMonths = (int) ($miner['runtime_months'] ?? 0);
             if ($runtimeMonths > 0 && is_numeric($miner['total_cost_amount'] ?? null)) {
-                $runtimeDays = $runtimeMonths * 30.4375;
+                $runtimeDays = $this->entryRuntimeDays($miner, 'purchased_at');
+                if ($runtimeDays <= 0) {
+                    continue;
+                }
                 $dailyCost = $this->convertAmount((float) $miner['total_cost_amount'] / $runtimeDays, (string) ($miner['currency'] ?? ''), $currency, $latest);
                 if ($dailyCost !== null) {
                     $cost += $dailyCost * $coveredDays;
@@ -1649,8 +1653,10 @@ final class AnalyticsService
             return $days - $startIndex;
         }
 
-        $runtimeDays = $runtimeMonths * 30.4375;
-        $endTs = (int) round($startTs + ($runtimeDays * 86400));
+        $endTs = $this->entryCoverageEndTimestamp($entry, $startField);
+        if ($endTs === null) {
+            return $days - $startIndex;
+        }
         $endIndex = (int) floor(($endTs - $baseTs) / 86400);
         $endIndex = min($days - 1, $endIndex);
         if ($endIndex < $startIndex) {
@@ -2178,8 +2184,31 @@ final class AnalyticsService
             return null;
         }
 
-        $runtimeDays = $runtimeMonths * 30.4375;
-        return (int) round($startTs + ($runtimeDays * 86400));
+        return $this->calendarMonthEndTimestamp($startTs, $runtimeMonths);
+    }
+
+    private function entryRuntimeDays(array $entry, string $startField = 'starts_at'): float
+    {
+        $startTs = $this->utcTimestamp((string) ($entry[$startField] ?? ''));
+        $runtimeMonths = (int) ($entry['runtime_months'] ?? 0);
+        if ($startTs <= 0 || $runtimeMonths <= 0) {
+            return 0.0;
+        }
+
+        $endTs = $this->calendarMonthEndTimestamp($startTs, $runtimeMonths);
+        return $endTs > $startTs ? ($endTs - $startTs) / 86400 : 0.0;
+    }
+
+    private function calendarMonthEndTimestamp(int $startTs, int $runtimeMonths): int
+    {
+        $utc = new \DateTimeZone('UTC');
+        $start = (new \DateTimeImmutable('@' . $startTs))->setTimezone($utc);
+        $monthIndex = (((int) $start->format('Y')) * 12) + ((int) $start->format('n')) - 1 + $runtimeMonths;
+        $year = intdiv($monthIndex, 12);
+        $month = ($monthIndex % 12) + 1;
+        $day = min((int) $start->format('j'), cal_days_in_month(CAL_GREGORIAN, $month, $year));
+
+        return $start->setDate($year, $month, $day)->getTimestamp();
     }
 
     private function utcTimestamp(?string $value): int

custom/apps/mining-checker/src/Infrastructure/MiningRepository.php

@@ -1060,7 +1060,7 @@ final class MiningRepository
             'settled_value_amount' => $payload['settled_value_amount'] ?? null,
             'settled_value_currency' => $payload['settled_value_currency'] ?? null,
             'settled_fx_fetch_id' => $payload['settled_fx_fetch_id'] ?? null,
-            'daily_cost_amount' => $payload['daily_cost_amount'] ?? $this->deriveDailyCostAmount($payload['total_cost_amount'] ?? null, $payload['runtime_months'] ?? null),
+            'daily_cost_amount' => $payload['daily_cost_amount'] ?? $this->deriveDailyCostAmount($payload['total_cost_amount'] ?? null, $payload['runtime_months'] ?? null, $payload['purchased_at'] ?? null),
             'daily_cost_currency' => $payload['daily_cost_currency'] ?? ($payload['currency'] ?? null),
             'auto_renew' => $payload['auto_renew'] ?? 0,
             'note' => $payload['note'] ?? null,
@@ -1615,7 +1615,7 @@ final class MiningRepository
 
     private function normalizeInsertPayload(string $projectKey, array $payload): array
     {
-        $dailyCostAmount = $payload['daily_cost_amount'] ?? $this->deriveDailyCostAmount($payload['total_cost_amount'] ?? null, $payload['runtime_months'] ?? null);
+        $dailyCostAmount = $payload['daily_cost_amount'] ?? $this->deriveDailyCostAmount($payload['total_cost_amount'] ?? null, $payload['runtime_months'] ?? null, $payload['starts_at'] ?? null);
         $dailyCostCurrency = $payload['daily_cost_currency'] ?? ($payload['currency'] ?? null);
 
         return [
@@ -1661,7 +1661,7 @@ final class MiningRepository
 
     private function normalizePurchasedPayload(string $projectKey, ?int $offerId, array $payload): array
     {
-        $dailyCostAmount = $payload['daily_cost_amount'] ?? $this->deriveDailyCostAmount($payload['total_cost_amount'] ?? null, $payload['runtime_months'] ?? null);
+        $dailyCostAmount = $payload['daily_cost_amount'] ?? $this->deriveDailyCostAmount($payload['total_cost_amount'] ?? null, $payload['runtime_months'] ?? null, $payload['purchased_at'] ?? null);
         $dailyCostCurrency = $payload['daily_cost_currency'] ?? ($payload['currency'] ?? null);
 
         return [
@@ -1691,18 +1691,29 @@ final class MiningRepository
         ];
     }
 
-    private function deriveDailyCostAmount(mixed $totalCostAmount, mixed $runtimeMonths): ?float
+    private function deriveDailyCostAmount(mixed $totalCostAmount, mixed $runtimeMonths, mixed $startsAt): ?float
     {
-        if (!is_numeric($totalCostAmount) || !is_numeric($runtimeMonths)) {
+        if (!is_numeric($totalCostAmount) || !is_numeric($runtimeMonths) || !is_string($startsAt) || trim($startsAt) === '') {
             return null;
         }
 
-        $months = (float) $runtimeMonths;
+        $months = (int) $runtimeMonths;
         if ($months <= 0) {
             return null;
         }
 
-        $runtimeDays = $months * 30.4375;
+        try {
+            $utc = new \DateTimeZone('UTC');
+            $start = new \DateTimeImmutable($startsAt, $utc);
+            $monthIndex = (((int) $start->format('Y')) * 12) + ((int) $start->format('n')) - 1 + $months;
+            $year = intdiv($monthIndex, 12);
+            $month = ($monthIndex % 12) + 1;
+            $day = min((int) $start->format('j'), cal_days_in_month(CAL_GREGORIAN, $month, $year));
+            $end = $start->setDate($year, $month, $day);
+            $runtimeDays = ($end->getTimestamp() - $start->getTimestamp()) / 86400;
+        } catch (\Throwable) {
+            return null;
+        }
         if ($runtimeDays <= 0) {
             return null;
         }

custom/apps/mining-checker/src/Infrastructure/SchemaManager.php

@@ -1590,13 +1590,11 @@ final class SchemaManager
                 ? [
                     'ALTER TABLE ' . $table . ' ADD COLUMN IF NOT EXISTS daily_cost_amount NUMERIC(20,10)',
                     'ALTER TABLE ' . $table . ' ADD COLUMN IF NOT EXISTS daily_cost_currency VARCHAR(10)',
-                    'UPDATE ' . $table . ' SET daily_cost_amount = ROUND((total_cost_amount / NULLIF(runtime_months * 30.4375, 0))::numeric, 10) WHERE daily_cost_amount IS NULL AND total_cost_amount IS NOT NULL AND runtime_months IS NOT NULL AND runtime_months > 0',
                     'UPDATE ' . $table . ' SET daily_cost_currency = COALESCE(daily_cost_currency, currency) WHERE currency IS NOT NULL',
                 ]
                 : [
                     'ALTER TABLE `' . $table . '` ADD COLUMN daily_cost_amount DECIMAL(20,10) NULL',
                     'ALTER TABLE `' . $table . '` ADD COLUMN daily_cost_currency VARCHAR(10) NULL',
-                    'UPDATE `' . $table . '` SET daily_cost_amount = ROUND(total_cost_amount / NULLIF(runtime_months * 30.4375, 0), 10) WHERE daily_cost_amount IS NULL AND total_cost_amount IS NOT NULL AND runtime_months IS NOT NULL AND runtime_months > 0',
                     'UPDATE `' . $table . '` SET daily_cost_currency = COALESCE(daily_cost_currency, currency) WHERE currency IS NOT NULL',
                 ];