From 956c2820050c8d70599c33575d3330a57a649fb4 Mon Sep 17 00:00:00 2001
From: dhanabalan <dhana@example.com>
Date: Fri, 26 Sep 2025 11:22:52 +0530
Subject: [PATCH] Add debug response for file reading in readFiles method and
 improve error handling for file accessibility

---
 app/Http/Controllers/SapFileController.php | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/app/Http/Controllers/SapFileController.php b/app/Http/Controllers/SapFileController.php
index c23a7f1b2..8da15ea97 100644
--- a/app/Http/Controllers/SapFileController.php
+++ b/app/Http/Controllers/SapFileController.php
@@ -124,12 +124,26 @@ class SapFileController extends Controller
         $fileName = array_values($files)[0];
         $filePath = $path . '/' . $fileName;
 
-         $lines = file($filePath, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
+        $lines = file($filePath, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
         if (!$lines) {
             return response()->json(['status' => 'ERROR', 'message' => 'File is empty'], 400);
         }
 
-         $table = 'class_characteristics';
+        // Debug: return first 5 lines to check reading
+        return response()->json([
+            'status' => 'DEBUG_LINES',
+            'file' => $fileName,
+            'lines_sample' => array_slice($lines, 0, 5) // first 5 lines
+        ]);
+
+        if (!file_exists($filePath) || !is_readable($filePath)) {
+            return response()->json([
+                'status' => 'ERROR',
+                'message' => "File {$fileName} not found or not readable"
+            ], 500);
+        }
+
+        $table = 'class_characteristics';
         $columns = Schema::getColumnListing($table); // returns lowercase column names
 
         $rows = [];