{{-- Shared user-avatar block — used by both admin and front layouts.
     Renders the user's uploaded `users.image` if it's set; otherwise an initials badge
     (first letter of each word in the name, max 2 chars). "Rahul Agrawal" → "RA".

     Inputs:
       $user       (App\Models\User|null)  defaults to auth()->user()
       $size       (int|null)              pixel size of the avatar (default 40)
       $classes    (string|null)           extra CSS classes for the outer element

     Static styling (.avatar-letter / .avatar-image) lives in both
     public/theme/admin/css/admin.css and public/theme/front/assets/css/main.css.

     Used by:
       admin/partials/sidebar.blade.php
       admin/partials/topbar.blade.php
       layouts/front/partials/header.blade.php --}}
@php
	$user        = $user        ?? auth()->user();
	$size        = $size        ?? 40;
	$classes     = $classes     ?? '';
	$displayName = trim((string) ($user->name ?? ($user->first_name ?? 'User')));

	// Build initials: first letter of up to 2 whitespace-separated words.
	$initials = collect(preg_split('/\s+/u', $displayName, -1, PREG_SPLIT_NO_EMPTY))
		->take(2)
		->map(fn ($w) => mb_strtoupper(mb_substr($w, 0, 1)))
		->implode('');
	if ($initials === '') $initials = 'U';

	$hasImage = !empty($user->image ?? null);
@endphp

@if ($hasImage)
	<img src="{{ asset($user->image) }}"
	     class="avatar avatar-image img-fluid rounded-circle {{ $classes }}"
	     style="width: {{ $size }}px; height: {{ $size }}px;"
	     alt="{{ $displayName }}">
@else
	{{-- font-size = size * 0.5 keeps the initials comfortably readable at small badge sizes
	     (front header uses size=28 → 14px font, was 11px with the previous 0.4 multiplier). --}}
	<div class="avatar avatar-letter rounded-circle d-inline-flex align-items-center justify-content-center {{ $classes }}"
	     style="width: {{ $size }}px; height: {{ $size }}px; font-size: {{ (int) round($size * 0.5) }}px;"
	     aria-label="{{ $displayName }}"
	     title="{{ $displayName }}">
		{{ $initials }}
	</div>
@endif