From e969955943e0dace8ecf5ca2b45c311f7446ab7d Mon Sep 17 00:00:00 2001
From: tristan <tristan@yuno.malio.fr>
Date: Thu, 11 Jun 2026 11:36:45 +0200
Subject: [PATCH] feat(night-contingent) : service partage NightHoursCalculator

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 .../WorkHours/NightHoursCalculator.php        | 102 ++++++++++++++++++
 .../WorkHours/NightHoursCalculatorTest.php    |  70 ++++++++++++
 2 files changed, 172 insertions(+)
 create mode 100644 src/Service/WorkHours/NightHoursCalculator.php
 create mode 100644 tests/Service/WorkHours/NightHoursCalculatorTest.php

diff --git a/src/Service/WorkHours/NightHoursCalculator.php b/src/Service/WorkHours/NightHoursCalculator.php
new file mode 100644
index 0000000..a32104c
--- /dev/null
+++ b/src/Service/WorkHours/NightHoursCalculator.php
@@ -0,0 +1,102 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Service\WorkHours;
+
+use App\Entity\WorkHour;
+
+/**
+ * Calcul des minutes travaillees de nuit (fenetre 21h->6h).
+ *
+ * Fenetres en minutes depuis 00:00 : [0,360] (00:00-06:00) et [1260,1440]
+ * (21:00-24:00). On projette sur J+1 pour les shifts qui traversent minuit.
+ * Source de verite unique partagee par les ecrans Heures et les exports.
+ */
+final class NightHoursCalculator
+{
+    /**
+     * Minutes de nuit d'un WorkHour. Conducteurs : champ manuel nightHoursMinutes.
+     * Non-conducteurs : somme calculee depuis les plages matin/apres-midi/soir.
+     */
+    public function nightMinutesForWorkHour(WorkHour $workHour, bool $isDriver): int
+    {
+        if ($isDriver) {
+            return $workHour->getNightHoursMinutes() ?? 0;
+        }
+
+        return $this->nightMinutesFromRanges($workHour);
+    }
+
+    public function nightMinutesFromRanges(WorkHour $workHour): int
+    {
+        $ranges = [
+            [$workHour->getMorningFrom(), $workHour->getMorningTo()],
+            [$workHour->getAfternoonFrom(), $workHour->getAfternoonTo()],
+            [$workHour->getEveningFrom(), $workHour->getEveningTo()],
+        ];
+
+        $total = 0;
+        foreach ($ranges as [$from, $to]) {
+            $total += $this->nightIntervalMinutes($from, $to);
+        }
+
+        return $total;
+    }
+
+    public function nightIntervalMinutes(?string $from, ?string $to): int
+    {
+        $interval = $this->resolveInterval($from, $to);
+        if (null === $interval) {
+            return 0;
+        }
+
+        [$start, $end] = $interval;
+        $windows       = [[0, 360], [1260, 1440]];
+        $total         = 0;
+
+        for ($dayOffset = 0; $dayOffset <= 1; ++$dayOffset) {
+            $shift = $dayOffset * 1440;
+            foreach ($windows as [$windowStart, $windowEnd]) {
+                $total += $this->overlap($start, $end, $windowStart + $shift, $windowEnd + $shift);
+            }
+        }
+
+        return $total;
+    }
+
+    /**
+     * @return null|array{int, int}
+     */
+    private function resolveInterval(?string $from, ?string $to): ?array
+    {
+        $fromMinutes = $this->toMinutes($from);
+        $toMinutes   = $this->toMinutes($to);
+        if (null === $fromMinutes || null === $toMinutes) {
+            return null;
+        }
+
+        $end = $toMinutes <= $fromMinutes ? $toMinutes + 1440 : $toMinutes;
+
+        return [$fromMinutes, $end];
+    }
+
+    private function toMinutes(?string $time): ?int
+    {
+        if (null === $time || '' === $time) {
+            return null;
+        }
+
+        [$hours, $minutes] = array_map('intval', explode(':', $time));
+
+        return ($hours * 60) + $minutes;
+    }
+
+    private function overlap(int $startA, int $endA, int $startB, int $endB): int
+    {
+        $start = max($startA, $startB);
+        $end   = min($endA, $endB);
+
+        return max(0, $end - $start);
+    }
+}
diff --git a/tests/Service/WorkHours/NightHoursCalculatorTest.php b/tests/Service/WorkHours/NightHoursCalculatorTest.php
new file mode 100644
index 0000000..ea0e554
--- /dev/null
+++ b/tests/Service/WorkHours/NightHoursCalculatorTest.php
@@ -0,0 +1,70 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Tests\Service\WorkHours;
+
+use App\Entity\WorkHour;
+use App\Service\WorkHours\NightHoursCalculator;
+use DateTimeImmutable;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @internal
+ */
+final class NightHoursCalculatorTest extends TestCase
+{
+    public function testNullRangeReturnsZero(): void
+    {
+        $calc = new NightHoursCalculator();
+        self::assertSame(0, $calc->nightIntervalMinutes(null, null));
+        self::assertSame(0, $calc->nightIntervalMinutes('08:00', null));
+    }
+
+    public function testPureDayRangeHasNoNight(): void
+    {
+        $calc = new NightHoursCalculator();
+        // 08:00 -> 17:00 : entierement hors fenetres nuit (00:00-06:00, 21:00-24:00).
+        self::assertSame(0, $calc->nightIntervalMinutes('08:00', '17:00'));
+    }
+
+    public function testEveningWindowCounts(): void
+    {
+        $calc = new NightHoursCalculator();
+        // 21:00 -> 24:00 = 180 min de nuit.
+        self::assertSame(180, $calc->nightIntervalMinutes('21:00', '00:00'));
+    }
+
+    public function testShiftCrossingMidnightCountsBothWindows(): void
+    {
+        $calc = new NightHoursCalculator();
+        // 21:00 -> 05:00 : 21-24 (180) + 00-05 (300) = 480 min.
+        self::assertSame(480, $calc->nightIntervalMinutes('21:00', '05:00'));
+    }
+
+    public function testNightMinutesForWorkHourDriverUsesManualField(): void
+    {
+        $calc = new NightHoursCalculator();
+        $wh   = new WorkHour();
+        $wh->setWorkDate(new DateTimeImmutable('2026-01-15'))
+            ->setDayHoursMinutes(300)
+            ->setNightHoursMinutes(250)
+            ->setMorningFrom('08:00')->setMorningTo('12:00')
+        ;
+
+        // Driver -> champ manuel nightHoursMinutes, plages ignorees.
+        self::assertSame(250, $calc->nightMinutesForWorkHour($wh, true));
+    }
+
+    public function testNightMinutesForWorkHourNonDriverSumsRanges(): void
+    {
+        $calc = new NightHoursCalculator();
+        $wh   = new WorkHour();
+        $wh->setWorkDate(new DateTimeImmutable('2026-01-15'))
+            ->setMorningFrom('22:00')->setMorningTo('00:00')   // 120 min nuit
+            ->setEveningFrom('04:00')->setEveningTo('06:00')  // 120 min nuit
+        ;
+
+        self::assertSame(240, $calc->nightMinutesForWorkHour($wh, false));
+    }
+}