From 97e3ea1fc3700d07eac7724081fc5426d9a441cf Mon Sep 17 00:00:00 2001
From: Lars Gebhardt-Kusche <lars@kusche.berlin>
Date: Sun, 7 Dec 2025 03:09:49 +0100
Subject: [PATCH] asdasd

---
 public/tools/schema-dump.php | 130 +++++++++++++++++++++++++++++++++++
 1 file changed, 130 insertions(+)
 create mode 100644 public/tools/schema-dump.php

diff --git a/public/tools/schema-dump.php b/public/tools/schema-dump.php
new file mode 100644
index 0000000..448a3a9
--- /dev/null
+++ b/public/tools/schema-dump.php
@@ -0,0 +1,130 @@
+<?php
+declare(strict_types=1);
+
+header('Content-Type: text/plain; charset=utf-8');
+
+$conf = @include __DIR__ . '/../../inc/config.php';
+if (!is_array($conf) || empty($conf['projectdb']) || !is_array($conf['projectdb'])) {
+    echo "-- Fehler: config.php konnte nicht geladen werden oder enthält keine projectdb-Einträge.\n";
+    exit(1);
+}
+
+$cfg = $conf['projectdb'];
+$dbName = (string)($cfg['db_name'] ?? '');
+if ($dbName === '') {
+    echo "-- Fehler: Kein Datenbankname in der Konfiguration gefunden.\n";
+    exit(1);
+}
+
+$pdo = null;
+$error = null;
+try {
+    $host    = $cfg['db_host'] ?? '127.0.0.1';
+    $port    = (int)($cfg['db_port'] ?? 3306);
+    $charset = $cfg['db_charset'] ?? 'utf8mb4';
+    $user    = $cfg['db_user'] ?? '';
+    $pass    = $cfg['db_pass'] ?? '';
+    $socket  = $cfg['db_socket'] ?? null;
+
+    $dsn = $socket
+        ? sprintf('mysql:unix_socket=%s;dbname=%s;charset=%s', $socket, $dbName, $charset)
+        : sprintf('mysql:host=%s;port=%d;dbname=%s;charset=%s', $host ?: '127.0.0.1', $port, $dbName, $charset);
+
+    $pdo = new PDO(
+        $dsn,
+        $user,
+        $pass,
+        [
+            PDO::ATTR_ERRMODE            => PDO::ERRMODE_EXCEPTION,
+            PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
+            PDO::ATTR_EMULATE_PREPARES   => false,
+        ]
+    );
+} catch (Throwable $e) {
+    $error = $e->getMessage();
+}
+
+if (!$pdo) {
+    echo "-- Fehler: Datenbankverbindung fehlgeschlagen.\n";
+    echo '-- Detail: ' . ($error ?? 'Unbekannt') . "\n";
+    exit(1);
+}
+
+$schemaInfo = [
+    'charset'   => null,
+    'collation' => null,
+];
+$stmt = $pdo->prepare('SELECT DEFAULT_CHARACTER_SET_NAME AS charset, DEFAULT_COLLATION_NAME AS collate_name FROM information_schema.SCHEMATA WHERE SCHEMA_NAME = :schema');
+$stmt->execute([':schema' => $dbName]);
+if ($row = $stmt->fetch()) {
+    $schemaInfo['charset'] = $row['charset'] ?? null;
+    $schemaInfo['collation'] = $row['collate_name'] ?? null;
+}
+
+$quote = static function (string $identifier): string {
+    return '`' . str_replace('`', '``', $identifier) . '`';
+};
+
+$now = gmdate('Y-m-d H:i:s') . ' UTC';
+$lines = [];
+$lines[] = sprintf('-- Schema-Dump für `%s` (erstellt am %s)', $dbName, $now);
+$lines[] = '-- Hinweis: Es werden nur CREATE-Anweisungen ausgegeben, bestehende Tabellen bleiben unangetastet.';
+$lines[] = '';
+
+$charset = $schemaInfo['charset'] ?: ($cfg['db_charset'] ?? 'utf8mb4');
+$collation = $schemaInfo['collation'] ?? null;
+$createDb = sprintf(
+    'CREATE DATABASE IF NOT EXISTS %s CHARACTER SET %s%s;',
+    $quote($dbName),
+    $charset,
+    $collation ? ' COLLATE ' . $collation : ''
+);
+$lines[] = $createDb;
+$lines[] = sprintf('USE %s;', $quote($dbName));
+$lines[] = 'SET NAMES utf8mb4;';
+$lines[] = 'SET FOREIGN_KEY_CHECKS = 0;';
+$lines[] = '';
+
+$tableStmt = $pdo->prepare(
+    'SELECT TABLE_NAME, TABLE_TYPE FROM information_schema.TABLES WHERE TABLE_SCHEMA = :schema ORDER BY TABLE_NAME'
+);
+$tableStmt->execute([':schema' => $dbName]);
+$tables = $tableStmt->fetchAll();
+
+foreach ($tables as $tbl) {
+    $tableName = (string)$tbl['TABLE_NAME'];
+    $type = strtoupper((string)$tbl['TABLE_TYPE']);
+    $lines[] = sprintf('-- %s: %s', $type === 'VIEW' ? 'View' : 'Tabelle', $tableName);
+    try {
+        if ($type === 'VIEW') {
+            $sql = sprintf('SHOW CREATE VIEW %s', $quote($tableName));
+            $res = $pdo->query($sql)->fetch();
+            $create = $res['Create View'] ?? '';
+            if ($create !== '') {
+                $lines[] = $create . ';';
+            } else {
+                $lines[] = sprintf('-- WARNUNG: Keine CREATE VIEW Ausgabe für %s verfügbar.', $tableName);
+            }
+        } else {
+            $sql = sprintf('SHOW CREATE TABLE %s', $quote($tableName));
+            $res = $pdo->query($sql)->fetch();
+            $create = $res['Create Table'] ?? '';
+            if ($create !== '') {
+                if (stripos($create, 'CREATE TABLE IF NOT EXISTS') === false) {
+                    $create = preg_replace('/^CREATE TABLE/i', 'CREATE TABLE IF NOT EXISTS', $create, 1);
+                }
+                $lines[] = $create . ';';
+            } else {
+                $lines[] = sprintf('-- WARNUNG: Keine CREATE TABLE Ausgabe für %s verfügbar.', $tableName);
+            }
+        }
+    } catch (Throwable $e) {
+        $lines[] = sprintf('-- FEHLER beim Auslesen von %s: %s', $tableName, $e->getMessage());
+    }
+    $lines[] = '';
+}
+
+$lines[] = 'SET FOREIGN_KEY_CHECKS = 1;';
+$lines[] = '-- Ende des Schema-Dumps';
+
+echo implode("\n", $lines);