89 lines
2.5 KiB
PHP
89 lines
2.5 KiB
PHP
<?php
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namespace App\Services\BackupScheduling;
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use App\Models\BackupSchedule;
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use Carbon\CarbonImmutable;
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class ScheduleTimeService
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{
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public function nextRunFor(BackupSchedule $schedule, ?CarbonImmutable $after = null): ?CarbonImmutable
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{
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$timezone = $schedule->timezone;
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$cursor = $after?->copy()->timezone($timezone) ?? CarbonImmutable::now($timezone);
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if ($schedule->frequency === 'weekly') {
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return $this->nextWeeklyRun($schedule, $cursor);
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}
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return $this->nextDailyRun($schedule, $cursor);
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}
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protected function nextDailyRun(BackupSchedule $schedule, CarbonImmutable $cursor): ?CarbonImmutable
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{
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$time = $schedule->time_of_day;
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$attempts = 0;
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if ($cursor->format('H:i:s') >= $time) {
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$cursor = $cursor->addDay();
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}
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while ($attempts++ < 14) {
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$candidate = $this->buildLocalSlot($schedule, $cursor);
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if ($candidate) {
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return $candidate;
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}
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$cursor = $cursor->addDay();
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}
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return null;
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}
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protected function nextWeeklyRun(BackupSchedule $schedule, CarbonImmutable $cursor): ?CarbonImmutable
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{
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$allowed = $schedule->days_of_week ?? [];
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$allowed = array_filter($allowed, fn ($day) => is_numeric($day) && $day >= 1 && $day <= 7);
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$allowed = array_values($allowed);
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if (empty($allowed)) {
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return null;
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}
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$attempts = 0;
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while ($attempts++ < 21) {
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$dayOfWeek = $cursor->dayOfWeekIso;
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if (in_array($dayOfWeek, $allowed, true)) {
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$candidate = $this->buildLocalSlot($schedule, $cursor);
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$cursorUtc = $cursor->copy()->timezone('UTC');
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if ($candidate && $candidate->greaterThan($cursorUtc)) {
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return $candidate;
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}
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}
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$cursor = $cursor->addDay()->startOfDay();
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}
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return null;
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}
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protected function buildLocalSlot(BackupSchedule $schedule, CarbonImmutable $date): ?CarbonImmutable
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{
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$timezone = $schedule->timezone;
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$time = $schedule->time_of_day;
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$datePart = $date->format('Y-m-d');
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$candidate = CarbonImmutable::createFromFormat('Y-m-d H:i:s', "{$datePart} {$time}", $timezone);
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if (! $candidate || $candidate->format('H:i:s') !== $time) {
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return null;
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}
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return $candidate->startOfMinute()->timezone('UTC');
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}
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}
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