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<?php |
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|
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namespace FluentCart\App\Services\Payments; |
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|
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use FluentCart\App\App; |
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use FluentCart\App\Helpers\Helper; |
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use FluentCart\App\Helpers\Status; |
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use FluentCart\App\Models\Order; |
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use FluentCart\App\Models\Subscription; |
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use FluentCart\App\Services\DateTime\DateTime; |
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use FluentCart\Framework\Support\Arr; |
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|
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class SubscriptionHelper |
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{ |
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/* |
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* @param $subscriptionModel |
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* @return string|null |
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* |
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* */ |
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public static function getNextBillingDate(Subscription $subscriptionModel) |
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{ |
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// only null case |
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if ($subscriptionModel->status === Status::SUBSCRIPTION_COMPLETED || ($subscriptionModel->bill_times > 0 && $subscriptionModel->bill_count >= $subscriptionModel->bill_times)) { |
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return null; |
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} |
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|
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// assuming on expired we update the canceled_at, removes this comment when verified |
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if ($subscriptionModel->status === Status::SUBSCRIPTION_CANCELED || $subscriptionModel->status === Status::SUBSCRIPTION_EXPIRED) { |
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return $subscriptionModel->canceled_at; |
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} |
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|
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// Trial handling |
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if ($subscriptionModel->bill_count == 0 && !empty($subscriptionModel->trial_days)) { |
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if (!empty($subscriptionModel->trial_ends_at)) { |
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return $subscriptionModel->trial_ends_at; |
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} |
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return gmdate('Y-m-d H:i:s', strtotime($subscriptionModel->created_at . " +{$subscriptionModel->trial_days} days")); |
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} |
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|
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if (!empty($subscriptionModel->next_billing_date) && strtotime($subscriptionModel->next_billing_date) > time()) { |
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return $subscriptionModel->next_billing_date; |
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} |
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|
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|
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if ($subscriptionModel->bill_count == 0) { |
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$baseDate = $subscriptionModel->created_at; |
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|
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} elseif (!empty($subscriptionModel->next_billing_date) && strtotime($subscriptionModel->next_billing_date) < time()) { |
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$baseDate = $subscriptionModel->next_billing_date; |
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} else { |
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$baseDate = DateTime::gmtNow()->format('Y-m-d H:i:s'); |
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} |
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|
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return gmdate('Y-m-d H:i:s', self::addBillingInterval( |
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$baseDate, |
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strtolower($subscriptionModel->billing_interval), |
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self::getBillingSchedule($subscriptionModel) |
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)); |
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} |
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|
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/* |
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* @param $trialDays |
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* @param $billTimes |
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* @param $interval |
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* |
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* */ |
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public static function getSubscriptionCancelAtTimeStamp($trialDays, $billTimes, $interval) |
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{ |
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if (!$billTimes && !$trialDays) { |
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return null; |
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} |
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|
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// Use the passed arguments instead of accessing non-existent $this->subscription |
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if ($interval == 'daily') { |
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$interval = 'day'; |
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} |
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|
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$interValMaps = [ |
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'day' => 'days', |
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'weekly' => 'weeks', |
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'monthly' => 'months', |
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'yearly' => 'years' |
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]; |
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|
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if (isset($interValMaps[$interval]) && $billTimes > 0) { |
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$interval = $interValMaps[$interval]; |
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} |
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|
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$timestamp = strtotime('+ ' . $billTimes . ' ' . $interval); |
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|
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// Add trial days if provided |
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if ($trialDays > 0) { |
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$timestamp = $timestamp + $trialDays * 24 * 60 * 60; // Add trial days in seconds |
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} |
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|
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return $timestamp; |
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} |
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|
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|
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// can be used to catch 1 day trial loop-hole |
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public static function checkTrailDaysLoopHole($subscription, $trialDays) |
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{ |
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$billCount = Arr::get($subscription, 'bill_count'); |
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$billingInterval = Arr::get($subscription, 'billing_interval'); |
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$billingIntervalInDays = 0; |
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switch ($billingInterval) { |
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case 'monthly': |
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$billingIntervalInDays = 30; |
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break; |
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case 'quarterly': |
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$billingIntervalInDays = 90; |
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break; |
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case 'half_yearly': |
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$billingIntervalInDays = 182; |
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break; |
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case 'yearly': |
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$billingIntervalInDays = 365; |
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break; |
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case 'weekly': |
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$billingIntervalInDays = 7; |
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break; |
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case 'daily': |
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$billingIntervalInDays = 1; |
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break; |
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} |
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|
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// get the days from now to the created at date - original trial days, |
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$daysSinceCreated = ceil(ceil((time() - strtotime($subscription->created_at)) / 86400)) - intval($subscription->trial_days); |
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$expectedBillCount = floor($daysSinceCreated / $billingIntervalInDays); |
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|
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if ($expectedBillCount > $billCount) { |
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$trialDays = 0; |
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} |
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|
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return $trialDays; |
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} |
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|
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/** |
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* Safely convert a date string or Unix timestamp to a GMT datetime string. |
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* Returns null when the value is falsy, zero, or a negative timestamp |
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* (guards against strtotime() returning false or a year-0 negative value). |
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* |
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* @param string|int|null $value |
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* @return string|null |
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*/ |
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public static function safeTimestampToDatetime($value): ?string |
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{ |
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if (!$value) { |
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return null; |
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} |
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$ts = is_numeric($value) ? (int) $value : strtotime($value); |
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if (!$ts || $ts <= 0) { |
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return null; |
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} |
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return gmdate('Y-m-d H:i:s', $ts); |
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} |
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|
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public static function getSubscriptionsGracePeriodDays() |
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{ |
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$defaults = [ |
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'daily' => 1, |
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'weekly' => 3, |
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'monthly' => 7, |
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'quarterly' => 15, |
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'half_yearly' => 15, |
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'yearly' => 15, |
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]; |
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|
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$gracePeriods = apply_filters('fluent_cart/subscription/grace_period_days', $defaults); |
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|
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if (!is_array($gracePeriods)) { |
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$gracePeriods = []; |
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} |
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|
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foreach ($defaults as $interval => $defaultDays) { |
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$days = $gracePeriods[$interval] ?? $defaultDays; |
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$gracePeriods[$interval] = is_numeric($days) ? max(0, (int) $days) : $defaultDays; |
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} |
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|
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return array_intersect_key($gracePeriods, $defaults); |
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} |
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|
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/** |
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* Grace period (days past due before expiry) for a billing interval, resolved |
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* from the per-interval grace map. Defaults to 7 for unknown intervals. |
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*/ |
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public static function getGracePeriodDaysForInterval(string $interval): int |
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{ |
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$map = self::getSubscriptionsGracePeriodDays(); |
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|
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foreach ($map as $key => $days) { |
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if (strpos($interval, $key) !== false) { |
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return (int) $days; |
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} |
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} |
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|
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return 7; |
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} |
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|
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/** |
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* Custom billing schedule stored in the subscription's config, or null. |
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* |
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* Shape: ['period' => day|week|month|year, 'interval' => N, 'anchor' => []]. |
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* Written by migrators for cadences the billing_interval enum cannot express |
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* (every 2 weeks, every 4 months) and for calendar-synced billing (fixed day |
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* of week / day of month / month of year). When present it overrides the |
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* slug in addBillingInterval(); the slug itself stays a native enum value |
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* (the schedule's base period) so validation, grace periods, and the UI keep |
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* working — and so a site without config support bills the base period |
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* rather than daily. |
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* |
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* Anchor keys: week → weekday (ISO 1-7); month → day (1-31, 31 = last day |
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* of month); year → day + month. |
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* |
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* @return array|null |
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*/ |
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public static function getBillingSchedule(Subscription $subscription) |
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{ |
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$config = $subscription->config; |
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$schedule = is_array($config) ? Arr::get($config, 'billing_schedule') : null; |
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|
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if (!is_array($schedule)) { |
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return null; |
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} |
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|
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$period = Arr::get($schedule, 'period'); |
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|
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if (!in_array($period, ['day', 'week', 'month', 'year'], true)) { |
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return null; |
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} |
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|
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return [ |
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'period' => $period, |
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'interval' => max(1, (int) Arr::get($schedule, 'interval', 1)), |
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'anchor' => self::sanitizeScheduleAnchor($period, Arr::get($schedule, 'anchor')), |
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]; |
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} |
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|
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/** |
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* Keep only anchor keys valid for the period and inside calendar range. |
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* gmmktime() silently renormalizes out-of-range values (month 15 rolls |
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* into the next year, day -3 into the previous month), so a corrupt |
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* anchor value must be dropped — addSchedulePeriod() then falls back to |
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* the current date part, keeping the cycle length correct. |
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*/ |
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private static function sanitizeScheduleAnchor($period, $anchor) |
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{ |
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if (!is_array($anchor)) { |
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return []; |
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} |
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|
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$clean = []; |
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|
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if ($period === 'week') { |
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$weekday = (int) Arr::get($anchor, 'weekday'); |
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if ($weekday >= 1 && $weekday <= 7) { |
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$clean['weekday'] = $weekday; |
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} |
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} |
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|
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if ($period === 'month' || $period === 'year') { |
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$day = (int) Arr::get($anchor, 'day'); |
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if ($day >= 1 && $day <= 31) { |
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$clean['day'] = $day; |
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} |
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} |
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|
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if ($period === 'year') { |
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$month = (int) Arr::get($anchor, 'month'); |
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if ($month >= 1 && $month <= 12) { |
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$clean['month'] = $month; |
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} |
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} |
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|
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return $clean; |
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} |
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|
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/** |
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* Advance a GMT datetime by one whole billing cycle, calendar-accurate. |
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* |
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* Month-based intervals keep the day-of-month, clamping into shorter target |
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* months (Jan 31 + monthly = Feb 28/29, then back to the 31st the cycle |
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* after) — a flat day count (monthly = 30 days) walks a subscription's |
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* billing day backwards roughly five days a year. Day/week intervals are |
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* exact multiples already. Unknown intervals keep the day-count contract of |
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* PaymentHelper::getIntervalDays() and its |
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* `fluent_cart/subscription_interval_in_days` filter, including its |
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* zero-progress edge (a filter returning 0 advances nothing, as before). |
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* |
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* When $schedule (see getBillingSchedule()) is given it wins over the slug: |
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* the cycle is interval × period with the anchor re-applied, so a migrated |
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* every-2-weeks-on-Friday subscription stays on Fridays even after a late |
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* payment rebases the cycle. |
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* |
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* @param string|int $fromDate GMT datetime string or UTC timestamp |
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* @param string $interval billing_interval slug |
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* @param array|null $schedule config-defined schedule, overrides $interval |
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* @return int advanced UTC timestamp |
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*/ |
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public static function addBillingInterval($fromDate, $interval, $schedule = null) |
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{ |
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$fromTs = is_numeric($fromDate) ? (int) $fromDate : (int) strtotime($fromDate); |
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|
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if (is_array($schedule) && !empty($schedule['period'])) { |
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return self::addSchedulePeriod($fromTs, $schedule); |
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} |
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|
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$monthsMap = [ |
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Status::BILLING_MONTHLY => 1, |
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Status::BILLING_QUARTERLY => 3, |
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Status::BILLING_HALF_YEARLY => 6, |
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Status::BILLING_YEARLY => 12, |
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]; |
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|
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if (isset($monthsMap[$interval])) { |
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$hour = (int) gmdate('H', $fromTs); |
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$min = (int) gmdate('i', $fromTs); |
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$sec = (int) gmdate('s', $fromTs); |
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$year = (int) gmdate('Y', $fromTs); |
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$month = (int) gmdate('n', $fromTs) + $monthsMap[$interval]; |
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|
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$firstOfTarget = gmmktime($hour, $min, $sec, $month, 1, $year); |
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$day = min((int) gmdate('j', $fromTs), (int) gmdate('t', $firstOfTarget)); |
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|
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return gmmktime($hour, $min, $sec, $month, $day, $year); |
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} |
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|
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if ($interval === Status::BILLING_DAILY) { |
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return $fromTs + DAY_IN_SECONDS; |
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} |
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|
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if ($interval === Status::BILLING_WEEKLY) { |
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return $fromTs + (7 * DAY_IN_SECONDS); |
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} |
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|
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return $fromTs + (PaymentHelper::getIntervalDays($interval) * DAY_IN_SECONDS); |
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} |
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|
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/** |
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* Advance by interval × period, then re-apply the anchor: week cycles snap |
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* forward to the anchor weekday, month/year cycles keep the anchor day |
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* clamped into short months (anchor 31 bills Feb 28, back to the 31st the |
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* month after). Always moves at least one day forward. |
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*/ |
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private static function addSchedulePeriod($fromTs, array $schedule) |
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{ |
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$n = max(1, (int) Arr::get($schedule, 'interval', 1)); |
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$anchor = is_array(Arr::get($schedule, 'anchor')) ? $schedule['anchor'] : []; |
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$hour = (int) gmdate('H', $fromTs); |
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$min = (int) gmdate('i', $fromTs); |
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$sec = (int) gmdate('s', $fromTs); |
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|
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switch (Arr::get($schedule, 'period')) { |
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case 'day': |
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return $fromTs + ($n * DAY_IN_SECONDS); |
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|
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case 'week': |
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$ts = $fromTs + ($n * 7 * DAY_IN_SECONDS); |
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$weekday = (int) Arr::get($anchor, 'weekday', 0); |
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|
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if ($weekday >= 1 && $weekday <= 7) { |
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$ts += ((($weekday - (int) gmdate('N', $ts)) + 7) % 7) * DAY_IN_SECONDS; |
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} |
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|
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return $ts; |
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|
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case 'month': |
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$year = (int) gmdate('Y', $fromTs); |
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$month = (int) gmdate('n', $fromTs) + $n; |
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$anchorDay = (int) Arr::get($anchor, 'day', 0) ?: (int) gmdate('j', $fromTs); |
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|
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$firstOfTarget = gmmktime($hour, $min, $sec, $month, 1, $year); |
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$day = min($anchorDay, (int) gmdate('t', $firstOfTarget)); |
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|
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return gmmktime($hour, $min, $sec, $month, $day, $year); |
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|
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case 'year': |
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$year = (int) gmdate('Y', $fromTs) + $n; |
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$anchorMonth = (int) Arr::get($anchor, 'month', 0) ?: (int) gmdate('n', $fromTs); |
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$anchorDay = (int) Arr::get($anchor, 'day', 0) ?: (int) gmdate('j', $fromTs); |
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|
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$firstOfTarget = gmmktime($hour, $min, $sec, $anchorMonth, 1, $year); |
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$day = min($anchorDay, (int) gmdate('t', $firstOfTarget)); |
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|
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return gmmktime($hour, $min, $sec, $anchorMonth, $day, $year); |
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} |
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|
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return $fromTs + DAY_IN_SECONDS; |
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} |
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|
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} |
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|
