feat: add booking time ranges and repeating series

src/Booking/SeriesResult.php

@@ -0,0 +1,52 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Booking;
+
+use App\Entity\Booking;
+use App\Entity\BookingSeries;
+
+/**
+ * What creating a series actually achieved. A series is materialised best-effort: days that were
+ * already taken are skipped and reported, rather than failing the whole series.
+ */
+final readonly class SeriesResult
+{
+    /**
+     * @param list<Booking>          $created
+     * @param array<string, string>  $skipped Y-m-d => reason
+     */
+    public function __construct(
+        public BookingSeries $series,
+        public array $created,
+        public array $skipped,
+    ) {
+    }
+
+    public function createdCount(): int
+    {
+        return \count($this->created);
+    }
+
+    public function skippedCount(): int
+    {
+        return \count($this->skipped);
+    }
+
+    public function isCompletelyBlocked(): bool
+    {
+        return [] === $this->created;
+    }
+
+    /**
+     * @return list<string>
+     */
+    public function skippedDates(): array
+    {
+        return array_map(
+            static fn (string $date): string => (new \DateTimeImmutable($date))->format('j.n.'),
+            array_keys($this->skipped),
+        );
+    }
+}