GUI for Participant management

app/Domains/Event/Actions/ParticipantPayment/ParticipantPaymentCommand.php

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+<?php
+
+namespace App\Domains\Event\Actions\ParticipantPayment;
+
+class ParticipantPaymentCommand {
+    public function __construct(public ParticipantPaymentRequest $request) {
+    }
+
+    public function execute() : ParticipantPaymentResponse {
+        $response = new ParticipantPaymentResponse();
+
+        $this->request->participant->amount_paid = $this->request->amountPaid;
+        $this->request->participant->save();
+
+        $response->success = true;
+
+        return $response;
+    }
+}

app/Domains/Event/Actions/ParticipantPayment/ParticipantPaymentRequest.php

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+<?php
+
+namespace App\Domains\Event\Actions\ParticipantPayment;
+
+use App\Models\EventParticipant;
+use App\ValueObjects\Amount;
+
+class ParticipantPaymentRequest {
+    public EventParticipant $participant;
+    public Amount $amountPaid;
+
+    public function __construct(EventParticipant $participant, Amount $amountPaid) {
+        $this->participant = $participant;
+        $this->amountPaid = $amountPaid;
+    }
+}

app/Domains/Event/Actions/ParticipantPayment/ParticipantPaymentResponse.php

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+<?php
+
+namespace App\Domains\Event\Actions\ParticipantPayment;
+
+class ParticipantPaymentResponse {
+    public bool $success = false;
+}