{{--
    Incremental chat updates rendered by process@updateMessages.

    Two important fixes vs the original template:

    1.  The original overwrote the loop-control variable `$sender_type`
        inside the first iteration (e.g. `$sender_type = $msg->getCustomer->name`).
        After that, the `if ($sender_type=='customer')` branch no longer
        matched, so every message *after the first* in a polled batch
        rendered on the wrong side of the conversation. We keep the
        viewer role in `$viewer` and write the display name into a
        separate `$displayName` so the branch decision stays stable
        across iterations.

    2.  `$msg->getSender` / `$msg->getCustomer` can return null if the
        related user record was hard-deleted (e.g. via
        changeCustomerStatus rejection, or an employee being removed).
        Dereferencing ->name on null 500'd the AJAX response, silently
        killing the chat polling loop. We fall back to 'User' when the
        relation is missing.
--}}
@php
    $viewer = $sender_type; // 'customer' or an aico role
@endphp
@foreach ($messages as $msg)
    @php
        $senderName   = optional($msg->getSender)->name ?? 'User';
        $customerName = optional($msg->getCustomer)->name ?? 'User';

        if ($viewer === 'customer') {
            // Viewed from the customer's side.
            if ((string) $msg->receiver_type === '0') {
                // Outgoing (customer -> AICO).
                $type = 'sender';
                $displayName = explode(' ', $customerName)[0];
            } else {
                // Incoming (AICO -> customer).
                $type = 'receiver';
                $displayName = explode(' ', $senderName)[0];
            }
        } else {
            // Viewed from an AICO employee's side.
            if ((string) $msg->receiver_type === '0') {
                // Incoming (customer -> AICO).
                $type = 'receiver';
                $displayName = explode(' ', $senderName)[0];
            } else {
                // Outgoing (AICO -> customer), shown as ours.
                $type = 'sender';
                $displayName = explode(' ', $senderName)[0];
            }
        }
    @endphp
    <li class="item col-lg-12 {{ $type }}" id="{{ $msg->id }}">
        <div><span>{{ $displayName }}:</span> {{ $msg->message }}</div>
    </li>
@endforeach