<?php

namespace Tempo\Purchasing\Delivery;

final class BootOverlay
{
    public static function prepare(string $host): array
    {
        $result = [];
        foreach (['app/Providers/AppServiceProvider.php', 'app/Shared/Context/ModuleNavigation.php'] as $path) {
            $source = file_get_contents($host.'/'.$path);
            $hash = hash('sha256', $source);
            $source = str_replace("\r\n", "\n", $source);
            if (str_ends_with($path, 'AppServiceProvider.php')) {
                $old = '$this->app->scoped(CompanyContext::class';
                $new = "if (is_file(base_path('packages/internal-requisitions/bootstrap.php'))) { require_once base_path('packages/internal-requisitions/bootstrap.php'); }\n        ".$old;
                $source = self::replace($source, $old, $new);
                $source = self::replace($source, "public function boot(): void\n    {", "public function boot(): void\n    {\n        if (is_file(base_path('packages/internal-requisitions/bootstrap.php'))) { \$this->loadRoutesFrom(base_path('packages/internal-requisitions/integrations/sgf/operational/routes.php')); }");
            } else {
                $source = self::replace($source, "'purchasing'=>['purchasing_budget.', 'supplier_payables.']", "'purchasing'=>['purchasing_budget.', 'purchasing_requisitions.', 'supplier_payables.']");
            }
            $result[$path] = ['before_sha256' => $hash, 'after_sha256' => hash('sha256', $source), 'contents' => $source];
        }

        return $result;
    }

    private static function replace(string $source, string $old, string $new): string
    {
        if (substr_count($source, $old) !== 1) {
            throw new \RuntimeException('Arranque/navegação do host divergiu; reconciliar antes de preparar.');
        }

        return str_replace($old, $new, $source);
    }
}