Manual mails can be sent

app/Domains/Event/Controllers/MailCompose/ByGroupController.php

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+<?php
+
+namespace App\Domains\Event\Controllers\MailCompose;
+
+use App\Scopes\CommonController;
+use Illuminate\Http\Request;
+
+class ByGroupController extends CommonController
+{
+    public function __invoke(string $eventIdentifier, string $groupType, Request $request) {
+        $event = $this->events->getByIdentifier($eventIdentifier, true);
+        $recipients = [];
+        switch ($groupType) {
+            case 'by-local-group':
+                $participants = $this->eventParticipants->groupByLocalGroup($event, $request, $request->input('groupName'));
+                $recipients = $this->eventParticipants->getMailAddresses($participants[$request->input('groupName')]);
+                break;
+            case 'by-participation-group':
+                $participants = $this->eventParticipants->groupByParticipationType($event, $request, $request->input('groupName'));
+                $recipients = $this->eventParticipants->getMailAddresses($participants[$request->input('groupName')]);
+                break;
+            case 'signed-off':
+                $participants = $this->eventParticipants->getSignedOffParticipants($event, $request, $request->input('groupName'));
+                $recipients = $this->eventParticipants->getMailAddresses($participants[$request->input('groupName')]);
+                break;
+            default:
+                $participants = $this->eventParticipants->getForList($event, $request);
+                $recipients = $this->eventParticipants->getMailAddresses($participants);
+
+        }
+
+        return response()->json(['recipients' => $recipients]);
+    }
+}

app/Domains/Event/Controllers/MailCompose/SendController.php

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+<?php
+
+namespace App\Domains\Event\Controllers\MailCompose;
+
+use App\Mail\ManualMails\ManualMailsCommonMail;
+use App\Mail\ManualMails\ManualMailsReportMail;
+use App\Mail\ParticipantCocMails\ParticipantCocCompleteMail;
+use App\Scopes\CommonController;
+use Illuminate\Http\Request;
+use Illuminate\Support\Facades\Mail;
+
+class SendController extends CommonController
+{
+    public function __invoke(string $eventIdentifier, Request $request) {
+        $recipients = $request->input('recipients')
+        |> function (string $value) : string { return str_replace(';', ',', $value); }
+        |> function (string $value) : array { return explode( ',', $value); };
+
+        $event = $this->events->getByIdentifier($eventIdentifier, true)->toResource()->toArray($request);
+        $sentRecipients = [];
+        $allOkay = true;
+        $subject = $request->input('subject') ?? 'Neue Nachricht zu Veranstaltung "' . $event['name'] . '"';
+
+        foreach ($recipients as $recipient) {
+            if (in_array($recipient, $sentRecipients)) {
+                continue;
+            }
+
+            $sentRecipients[] = $recipient;
+            try {
+                Mail::to(trim($recipient))->send(new ManualMailsCommonMail(
+                    mailSubject: $subject,
+                    message: $request->input('message'),
+                    event: $event,
+                ));
+            } catch (\Exception $e) {
+                $allOkay = false;
+            }
+        }
+
+        $user = auth()->user();
+        $reportSubject = sprintf('Sendebericht für Nachricht mit Betreff "%s"', $subject);
+
+        Mail::to($user->email)->send(new ManualMailsReportMail(
+            mailSubject: $reportSubject,
+            message: $request->input('message'),
+            event: $event,
+            originalRecipients: $sentRecipients
+        ));
+
+        if ($allOkay) {
+            return response()->json([
+                'success' => true,
+                'message' => sprintf(
+                    'E-Mail wurde erfolgreich an %1$s Personen versendet. Du hast eine Kopie an deine Mail-Adresse erhalten.',
+                    count($sentRecipients)
+                ),
+            ]);
+        } else {
+            return response()->json([
+                'success' => false,
+                'message' => 'Es gab einen Fehler beim Versenden der Nachrichten.'
+            ]);
+        }
+    }
+}