Reservair/includes/Models/RsvReservation.php

<?php

class RsvReservation {
    public ?int $id;

    public int $form_submit_id;

    public bool|null $is_confirmed;

    public array $timetable_reservations;

    public static function schema(): array {
        return [
            'type'       => 'object',
            'properties' => [
                'id'                     => ['type' => 'integer', 'readonly' => true],
                'form_submit_id'         => ['type' => 'integer', 'readonly' => true],
                'is_confirmed'           => ['type' => 'boolean', 'readonly' => true],
                'timetable_reservations' => [
                    'type'     => 'array',
                    'required' => true,
                    'items'    => RsvTimetableReservation::schema(),
                ],
            ],
        ];
    }

    public static function from_array(array $data) : self {
        return new self(
            intval($data['id'] ?? null),
            intval($data['form_submit_id'] ?? null),
            $data['is_confirmed'] ?? null,
            array_map(fn($t) =>
                new RsvTimetableReservation(null, $data['timetable_id'], $t['start'], $t['end']),
                $data['timetable_reservations'] ?? [])
        );
    }

    public function __construct(?int $id, int $form_submit_id, bool|null $is_confirmed, array $timetable_reservations)
    {
        $this->id = $id;
        $this->form_submit_id = $form_submit_id;
        $this->is_confirmed = $is_confirmed;
        $this->timetable_reservations = $timetable_reservations;
    }

    public function to_array() {
        return [
            'id' => $this->id,
            'form_submit_id' => $this->form_submit_id,
            'is_confirmed' => $this->is_confirmed,
            // 'timetable_reservations' => $this->timetable_reservations,
        ];
    }
}