<?php

namespace Modules\Stylist\Http\Middleware;

use Closure;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\View;
use Modules\Stylist\Theme\Loader;
use Modules\Stylist\Theme\Stylist;
use Throwable;

final class ApplyActiveTheme
{
    public function handle(Request $request, Closure $next)
    {
        $context = $request->is('admin', 'admin/*', 'stylist', 'stylist/*')
            || $request->routeIs('admin.*', 'stylist.*') ? 'backend' : 'frontend';

        try {
            $loader = app(Loader::class);
            $theme = app(Stylist::class)->current($context);
            if ($theme->type() !== $context) {
                $theme = $loader->find($context === 'backend' ? 'sonardesk-admin' : 'sonardesk');
            }

            $paths = [];
            $seen = [];
            while ($theme && ! isset($seen[$theme->key()])) {
                $seen[$theme->key()] = true;
                $path = $theme->path().'/views';
                if (is_dir($path)) {
                    $paths[] = $path;
                }
                $theme = $theme->parent() ? $loader->find($theme->parent()) : null;
            }
            $baseline = $loader->find($context === 'backend' ? 'sonardesk-admin' : 'sonardesk');
            $paths[] = $baseline->path().'/views';

            // Finder uses first match. Prepend in reverse order to preserve precedence.
            foreach (array_reverse(array_unique($paths)) as $path) {
                View::getFinder()->prependLocation($path);
            }
        } catch (Throwable $exception) {
            report($exception);
            // Original Laravel views remain available for recovery.
        }

        return $next($request);
    }
}