changes 0129092025 laptop

app/Services/CsvImportService.php

@@ -62,4 +62,30 @@ public function detectColumnsFromCsv(string $path, bool $hasHeader): array
 
         return [$bestDelim, $clean];
     }
+
+    /**
+     * Parse columns from CSV using a specific delimiter. If $hasHeader is false,
+     * returns positional indices instead of header names.
+     */
+    public function parseColumnsFromCsv(string $path, string $delimiter, bool $hasHeader): array
+    {
+        $firstLine = $this->readFirstLine($path);
+        if ($firstLine === null) {
+            return [];
+        }
+        $row = str_getcsv($firstLine, $delimiter);
+        $count = is_array($row) ? count($row) : 0;
+        if ($hasHeader) {
+            return array_map(function ($v) {
+                $v = trim((string) $v);
+                $v = preg_replace('/\s+/', ' ', $v);
+                return $v;
+            }, $row ?: []);
+        }
+        $cols = [];
+        for ($i = 0; $i < $count; $i++) {
+            $cols[] = (string) $i;
+        }
+        return $cols;
+    }
 }