<?php

namespace Modules\Stylist\Services;

use App\Models\SiteSetting;
use Illuminate\Support\Facades\Auth;

final class TenantThemeResolver
{
    public function resolve(?string $context = null): string
    {
        $context ??= $this->context();
        $column = config('stylist.tenant_theme_column', 'theme_key');
        $user = Auth::user();
        $company = $user?->company ?? null;

        /*
         * The legacy company theme_key is a public-facing tenant theme.
         * It must never replace the application's backend/admin theme.
         */
        if ($context === 'frontend' && $company && filled($company->{$column} ?? null)) {
            return (string) $company->{$column};
        }

        $settingKey = $context === 'frontend' ? 'frontend_theme' : 'backend_theme';
        $default = $context === 'frontend'
            ? config('stylist.default_frontend_theme', 'frontend')
            : config('stylist.default_backend_theme', config('stylist.default_theme', 'backend'));

        try {
            return (string) SiteSetting::valueOf($settingKey, $default);
        } catch (\Throwable) {
            return (string) $default;
        }
    }

    public function context(): string
    {
        if (app()->runningInConsole()) {
            return 'backend';
        }

        $request = request();

        return $request->is(
            'dashboard',
            'dashboard/*',
            'settings',
            'settings/*',
            'admin',
            'admin/*',
            'helpdesk',
            'helpdesk/*',
            'login',
            'register',
            'forgot-password',
            'reset-password',
            'reset-password/*',
            'confirm-password',
            'user/confirm-password',
            'two-factor-challenge',
            'verify-email',
            'verify-email/*',
            'email/verify',
            'email/verify/*',
        ) || $request->routeIs(
            'dashboard',
            'profile.edit',
            'appearance.edit',
            'security.edit',
            'admin.*',
            'helpdesk.*',
            'login',
            'register',
            'password.*',
            'verification.*',
            'two-factor.*',
        )
            ? 'backend'
            : 'frontend';
    }

    public function variables(): array
    {
        $variables = config('stylist.fallback_variables', []);
        $company = Auth::user()?->company ?? null;

        foreach (config('stylist.tenant_brand_columns', []) as $column => $variable) {
            if ($company && filled($company->{$column} ?? null)) {
                $variables[$variable] = (string) $company->{$column};
            }
        }

        return $variables;
    }
}