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Anchor next lot forecast after current lot

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gitea_admin committed 2026-09-08 19:24:34 +02:00
1 parent 959586ecc9
commit 3ae9951b13
2 files changed
+23 -7
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modules/erp/lager/forecast.php
+22 -6
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@@ -124,7 +124,12 @@ function lager_forecast_load_daily_sales(PDO $pdo, DateTimeImmutable $asOfDate,
return $sales;
}
function lager_forecast_calculate(DateTimeImmutable $asOfDate, float $physicalQty, array $dailySales): array
function lager_forecast_calculate(
DateTimeImmutable $asOfDate,
float $physicalQty,
array $dailySales,
?DateTimeImmutable $forecastStartDate = null
): array
{
$lookbackDays = 365;
$halfLifeDays = 60;
@@ -176,8 +181,9 @@ function lager_forecast_calculate(DateTimeImmutable $asOfDate, float $physicalQt
? 'high'
: ($salesDays >= 10 ? 'medium' : 'low');
$daysUntilDepleted = (int) ceil($physicalQty / $dailyDemand);
$forecastStartDate ??= $asOfDate;
return [
'forecast_date' => $asOfDate->modify('+' . $daysUntilDepleted . ' days')->format('Y-m-d'),
'forecast_date' => $forecastStartDate->modify('+' . $daysUntilDepleted . ' days')->format('Y-m-d'),
'forecast_status' => 'forecast', 'confidence' => $confidence, 'daily_demand' => $dailyDemand,
'sales_units' => $salesUnits, 'sales_days' => $salesDays, 'observed_span_days' => $observedSpanDays,
'lookback_days' => $lookbackDays, 'half_life_days' => $halfLifeDays,
@@ -255,12 +261,17 @@ function refresh_lager_stock_lot_forecast_for_product(PDO $pdo, int $productId):
$dailySales[$productId] ?? []
);
lager_forecast_persist($pdo, $lot, $forecast, $asOfDate);
if ($lot['next_lot_id'] !== null) {
if ($lot['next_lot_id'] !== null && $forecast['forecast_date'] !== null) {
lager_forecast_persist($pdo, [
'lot_id' => $lot['next_lot_id'],
'product_id' => $productId,
'physical_qty' => $lot['next_physical_qty'],
], lager_forecast_calculate($asOfDate, (float) $lot['next_physical_qty'], $dailySales[$productId] ?? []), $asOfDate);
], lager_forecast_calculate(
$asOfDate,
(float) $lot['next_physical_qty'],
$dailySales[$productId] ?? [],
new DateTimeImmutable($forecast['forecast_date'])
), $asOfDate);
}
}
@@ -287,12 +298,17 @@ function run_lager_stock_lot_forecast(PDO $pdo): array
try {
$forecast = lager_forecast_calculate($asOfDate, (float) $lot['physical_qty'], $dailySales[$productId] ?? []);
lager_forecast_persist($pdo, $lot, $forecast, $asOfDate);
if ($lot['next_lot_id'] !== null) {
if ($lot['next_lot_id'] !== null && $forecast['forecast_date'] !== null) {
lager_forecast_persist($pdo, [
'lot_id' => $lot['next_lot_id'],
'product_id' => $productId,
'physical_qty' => $lot['next_physical_qty'],
], lager_forecast_calculate($asOfDate, (float) $lot['next_physical_qty'], $dailySales[$productId] ?? []), $asOfDate);
], lager_forecast_calculate(
$asOfDate,
(float) $lot['next_physical_qty'],
$dailySales[$productId] ?? [],
new DateTimeImmutable($forecast['forecast_date'])
), $asOfDate);
}
$result['processed_products']++;
} catch (Throwable $error) {