@php
    $total   = (float) ($total   ?? 0);
    $balance = (float) ($balance ?? 0);
    $paid    = max(0, $total - $balance);
    $studentName = trim(($invoice->student->first_name ?? '') . ' ' . ($invoice->student->last_name ?? ''));
    $dueDate = $invoice->dueDate ? \Carbon\Carbon::parse($invoice->dueDate)->format('M j, Y') : null;
    $rows = [
        ['label' => 'Invoice #',   'value' => $invoice->invoiceNumber ?? '-'],
    ];
    if ($studentName !== '') $rows[] = ['label' => 'Student', 'value' => $studentName];
    $rows[] = ['label' => 'Amount',      'value' => 'CA$' . number_format($total, 2)];
    $rows[] = ['label' => 'Paid',        'value' => 'CA$' . number_format($paid, 2)];
    $rows[] = ['label' => 'Balance Due', 'value' => 'CA$' . number_format($balance, 2)];
    if ($dueDate) $rows[] = ['label' => 'Due Date', 'value' => $dueDate];
@endphp
Hello{{ !empty($parent['name']) ? ' ' . $parent['name'] : '' }},

@include('emails.plain.generic', [
    'heading' => 'Invoice ' . ($invoice->invoiceNumber ?? ''),
    'intro'   => 'Please find attached invoice ' . ($invoice->invoiceNumber ?? '') . ($studentName !== '' ? ' for ' . $studentName : '') . '.',
    'rows'    => $rows,
    'note'    => 'Thank you for choosing ' . config('company.name') . '.',
])