<?php

namespace App\Services\Admin;

use App\Models\Amministratore;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Log;
use Illuminate\Support\Facades\Storage;

class AdministratorProvisioningService
{
    public function provision(Amministratore $amministratore, bool $createDatabase = true, bool $force = false): array
    {
        $changed = false;

        // 1. Cartelle
        if ($force || empty($amministratore->cartella_dati) || !is_dir($amministratore->cartella_dati)) {
            $amministratore->provisionArchiveIfMissing();
            $changed = true;
        }

        // 2. Database dedicato
        $dbName = $amministratore->getDatabaseName();
        if ($createDatabase && $this->ensureDatabaseExists($dbName)) {
            $changed = true;
        }

        // 3. Flag provisioned_at
        if ($changed || $force || !$amministratore->provisioned_at) {
            $amministratore->provisioned_at = now();
            $amministratore->saveQuietly();
        }

        return [
            'amministratore_id' => $amministratore->id,
            'database' => $dbName,
            'archive_path' => $amministratore->cartella_dati,
            'provisioned_at' => $amministratore->provisioned_at,
            'changed' => $changed,
        ];
    }

    protected function ensureDatabaseExists(string $dbName): bool
    {
        try {
            $exists = DB::select("SELECT SCHEMA_NAME FROM INFORMATION_SCHEMA.SCHEMATA WHERE SCHEMA_NAME = ?", [$dbName]);
            if (!$exists) {
                DB::statement("CREATE DATABASE `{$dbName}` CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci");
                Log::info('[Provisioning] Created database: ' . $dbName);
                return true;
            }
        } catch (\Throwable $e) {
            Log::error('[Provisioning] Error ensuring database ' . $dbName . ': ' . $e->getMessage());
        }
        return false;
    }
}