From 439673326312d1742d5e4d1ee0f446bf7fb42ce4 Mon Sep 17 00:00:00 2001
From: Eduardo Lopes <155753879+eduardolopesx03@users.noreply.github.com>
Date: Wed, 28 Jan 2026 10:37:51 -0300
Subject: [PATCH] Improve chips virgens table detection

---
 Controllers/LinesController.cs | 35 +++++++++++++++++++++++++++++-----
 1 file changed, 30 insertions(+), 5 deletions(-)

diff --git a/Controllers/LinesController.cs b/Controllers/LinesController.cs
index b91c6b3..775ec6f 100644
--- a/Controllers/LinesController.cs
+++ b/Controllers/LinesController.cs
@@ -1360,6 +1360,10 @@ namespace line_gestao_api.Controllers
             for (int i = 0; i < headers.Count; i++)
             {
                 var headerRow = headers[i];
+                var lastCol = headerRow.LastCellUsed()?.Address.ColumnNumber
+                              ?? ws.LastColumnUsed()?.ColumnNumber()
+                              ?? headerRow.LastCellUsed()?.Address.ColumnNumber
+                              ?? 1;
                 var itemColumns = headerRow.CellsUsed()
                     .Where(c => NormalizeHeader(c.GetString()) == "ITEM")
                     .Select(c => c.Address.ColumnNumber)
@@ -1375,12 +1379,11 @@ namespace line_gestao_api.Controllers
                     var startCol = itemColumns[tableIndex];
                     var endCol = tableIndex + 1 < itemColumns.Count
                         ? itemColumns[tableIndex + 1] - 1
-                        : headerRow.LastCellUsed()?.Address.ColumnNumber ?? startCol;
+                        : lastCol;
 
-                    var map = BuildHeaderMapRange(headerRow, startCol, endCol);
-                    int colItem = GetCol(map, "ITEM");
-                    int colChip = GetColAny(map, "Nº DO CHIP", "N° DO CHIP", "NUMERO DO CHIP", "N DO CHIP", "NUM. DO CHIP", "CHIP");
-                    int colObs = GetColAny(map, "OBSERVAÇÕES", "OBSERVACOES", "OBSERVACAO", "OBS");
+                    int colItem = startCol;
+                    int colChip = FindHeaderColumn(headerRow, startCol, endCol, "CHIP");
+                    int colObs = FindHeaderColumn(headerRow, startCol, endCol, "OBS");
                     if (colItem == 0 || colChip == 0 || colObs == 0) continue;
 
                     for (int r = startRow; r <= endRow; r++)
@@ -1670,6 +1673,28 @@ namespace line_gestao_api.Controllers
             return map;
         }
 
+        private static int FindHeaderColumn(IXLRow headerRow, int startCol, int endCol, params string[] headerKeys)
+        {
+            var normalizedKeys = headerKeys.Select(NormalizeHeader).Where(k => !string.IsNullOrWhiteSpace(k)).ToArray();
+            if (normalizedKeys.Length == 0) return 0;
+
+            for (int col = startCol; col <= endCol; col++)
+            {
+                var key = NormalizeHeader(headerRow.Cell(col).GetString());
+                if (string.IsNullOrWhiteSpace(key)) continue;
+
+                foreach (var wanted in normalizedKeys)
+                {
+                    if (key == wanted || key.Contains(wanted))
+                    {
+                        return col;
+                    }
+                }
+            }
+
+            return 0;
+        }
+
         private static DateTime? ToUtc(DateTime? dt)
         {
             if (dt == null) return null;