From 048ae8d71d185edb49cf0018c305a9fa5fdd7790 Mon Sep 17 00:00:00 2001
From: Daniel <d.knudsen@spawntree.de>
Date: Wed, 1 Apr 2026 13:29:35 +0200
Subject: [PATCH] cleanup step 1

---
 gewinnspiel/cleanUpCsv.php | 185 +++++++++++++++++++++++++++++++++++++
 1 file changed, 185 insertions(+)
 create mode 100644 gewinnspiel/cleanUpCsv.php

diff --git a/gewinnspiel/cleanUpCsv.php b/gewinnspiel/cleanUpCsv.php
new file mode 100644
index 0000000..0783aa1
--- /dev/null
+++ b/gewinnspiel/cleanUpCsv.php
@@ -0,0 +1,185 @@
+<?php
+
+if ($argc < 2) {
+    echo "Usage: php " . basename(__FILE__) . " <filename.csv>\n";
+    exit(1);
+}
+
+$filename = $argv[1];
+$filepath = __DIR__ . '/input-csv/' . $filename;
+
+if (!file_exists($filepath)) {
+    echo "Fehler: Datei '$filepath' nicht gefunden.\n";
+    exit(1);
+}
+
+$handle = fopen($filepath, 'r');
+if (!$handle) {
+    echo "Fehler: Datei konnte nicht geöffnet werden.\n";
+    exit(1);
+}
+
+const COL_STREET = 5;
+const COL_EMAIL  = 7;
+
+// Delimiter auto-erkennen
+$firstLine = fgets($handle);
+$firstLine = str_replace("\r", '', $firstLine);
+$delimiter = substr_count($firstLine, ',') >= substr_count($firstLine, ';') ? ',' : ';';
+rewind($handle);
+
+echo "Erkannter Delimiter: '$delimiter'\n";
+
+// Header einlesen
+$header = fgetcsv($handle, 0, $delimiter);
+$header = array_map(fn($cell) => mb_convert_encoding($cell, 'UTF-8', 'ISO-8859-1'), $header);
+
+$emailMap  = [];
+$streetMap = [];
+$rows      = [];
+$rowNumber = 1;
+
+while (($row = fgetcsv($handle, 0, $delimiter)) !== false) {
+    $rowNumber++;
+    $row = array_map(fn($cell) => mb_convert_encoding($cell, 'UTF-8', 'ISO-8859-1'), $row);
+    $rows[$rowNumber] = $row;
+
+    $email  = mb_strtolower(trim($row[COL_EMAIL]  ?? ''));
+    $street = mb_strtolower(trim($row[COL_STREET] ?? ''));
+
+    if ($email !== '') {
+        $emailMap[$email]['original'] = trim($row[COL_EMAIL]);
+        $emailMap[$email]['rows'][]   = $rowNumber;
+    }
+
+    if ($street !== '') {
+        $streetMap[$street]['original'] = trim($row[COL_STREET]);
+        $streetMap[$street]['rows'][]   = $rowNumber;
+    }
+}
+
+fclose($handle);
+
+// -------------------------------------------------------
+// Hilfsfunktionen
+// -------------------------------------------------------
+
+function printBlock(array $data, string $label, array $header, array $rows): void
+{
+    $colWidth   = 22;
+    $separator  = str_repeat('-', count($header) * ($colWidth + 3)) . "\n";
+    $headerLine = implode(' | ', array_map(fn($h) => str_pad(mb_substr($h, 0, $colWidth), $colWidth), $header));
+
+    echo "\n" . $separator;
+    echo "$label: {$data['original']}\n";
+    echo $separator;
+    echo "Zeile | $headerLine\n";
+    echo $separator;
+
+    foreach ($data['rows'] as $rowNum) {
+        $cells = array_map(
+            fn($cell) => str_pad(mb_substr($cell, 0, $colWidth), $colWidth),
+            $rows[$rowNum]
+        );
+        echo "  $rowNum   | " . implode(' | ', $cells) . "\n";
+    }
+
+    echo $separator;
+}
+
+function askDelete(array $data, string $label, array $header, array $rows, array &$rowsToDelete): void
+{
+    printBlock($data, $label, $header, $rows);
+
+    $keep   = $data['rows'][0];
+    $delete = array_slice($data['rows'], 1);
+
+    echo "Behalten: Zeile $keep – Löschen: Zeilen " . implode(', ', $delete) . "\n";
+    echo "[1] Löschen  [Enter] Überspringen: ";
+    $input = trim(fgets(STDIN));
+
+    if ($input === '1') {
+        foreach ($delete as $rowNum) {
+            $rowsToDelete[$rowNum] = true;
+        }
+        echo "Zeilen " . implode(', ', $delete) . " zum Löschen vorgemerkt.\n";
+    } else {
+        echo "Übersprungen.\n";
+    }
+}
+
+// -------------------------------------------------------
+// SCHRITT 1: E-Mail-Duplikate
+// -------------------------------------------------------
+$emailDuplicates = array_filter($emailMap, fn($entry) => count($entry['rows']) > 1);
+$rowsToDelete    = [];
+
+echo "\n========================================\n";
+echo " SCHRITT 1: Doppelte E-Mail-Adressen\n";
+echo "========================================\n";
+
+if (empty($emailDuplicates)) {
+    echo "Keine gefunden.\n";
+} else {
+    echo count($emailDuplicates) . " doppelte E-Mail-Adresse(n) gefunden.\n";
+
+    foreach ($emailDuplicates as $data) {
+        askDelete($data, 'E-Mail', $header, $rows, $rowsToDelete);
+    }
+}
+
+// -------------------------------------------------------
+// SCHRITT 2: Straßen-Duplikate (bereits gelöschte Zeilen ausblenden)
+// -------------------------------------------------------
+echo "\n========================================\n";
+echo " SCHRITT 2: Doppelte Straßen\n";
+echo "========================================\n";
+
+foreach ($streetMap as $key => $data) {
+    $streetMap[$key]['rows'] = array_values(array_filter($data['rows'], fn($r) => !isset($rowsToDelete[$r])));
+    if (count($streetMap[$key]['rows']) < 2) {
+        unset($streetMap[$key]);
+    }
+}
+
+$streetDuplicates = array_filter($streetMap, fn($entry) => count($entry['rows']) > 1);
+
+if (empty($streetDuplicates)) {
+    echo "Keine gefunden.\n";
+} else {
+    echo count($streetDuplicates) . " doppelte Straße(n) gefunden.\n";
+
+    foreach ($streetDuplicates as $data) {
+        askDelete($data, 'Straße', $header, $rows, $rowsToDelete);
+    }
+}
+
+// -------------------------------------------------------
+// CSV schreiben falls Zeilen zum Löschen vorgemerkt
+// -------------------------------------------------------
+if (empty($rowsToDelete)) {
+    echo "\nKeine Zeilen zum Löschen vorgemerkt. Keine Ausgabedatei erstellt.\n";
+    exit(0);
+}
+
+$outputDir  = __DIR__ . '/output-csv';
+$outputPath = $outputDir . '/' . $filename;
+
+if (!is_dir($outputDir)) {
+    mkdir($outputDir, 0755, true);
+}
+
+$out = fopen($outputPath, 'w');
+fputcsv($out, $header, $delimiter);
+
+foreach ($rows as $rowNum => $row) {
+    if (isset($rowsToDelete[$rowNum])) {
+        continue;
+    }
+    fputcsv($out, $row, $delimiter);
+}
+
+fclose($out);
+
+echo "\nBereinigte CSV gespeichert: output-csv/$filename\n";
+echo "Gelöschte Zeilen gesamt: " . count($rowsToDelete) . "\n";
\ No newline at end of file