From 558f0a39bd8a765ca585f37eb4ea55190705d00a Mon Sep 17 00:00:00 2001
From: dhanabalan <digitalmanufacturingiiot@gmail.com>
Date: Tue, 10 Nov 2026 14:11:15 +0530
Subject: [PATCH 1/2] Added item code duplicate validation in production plan
 resource page

---
 .../Resources/ProductionPlanResource.php      | 33 +++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/app/Filament/Resources/ProductionPlanResource.php b/app/Filament/Resources/ProductionPlanResource.php
index 4946f935..ad655f12 100644
--- a/app/Filament/Resources/ProductionPlanResource.php
+++ b/app/Filament/Resources/ProductionPlanResource.php
@@ -826,6 +826,39 @@ class ProductionPlanResource extends Resource
                     ->label('Import Production Plans')
                     ->color('warning')
                     ->importer(ProductionPlanImporter::class)
+                    ->fileRules([
+                        fn (): \Closure => function ($attribute, $value, $fail) {
+
+                            $csv = \League\Csv\Reader::createFromPath(
+                                $value->getRealPath(),
+                                'r'
+                            );
+
+                            $csv->setHeaderOffset(0);
+
+                            $itemCodes = [];
+
+                            foreach ($csv->getRecords() as $record) {
+                                $itemCode = trim((string) ($record['Item Code'] ?? ''));
+
+                                if ($itemCode !== '') {
+                                    $itemCodes[] = $itemCode;
+                                }
+                            }
+
+                            $duplicates = collect($itemCodes)
+                                ->duplicates()
+                                ->unique()
+                                ->values();
+
+                            if ($duplicates->isNotEmpty()) {
+                                $fail(
+                                    'Duplicate Item Codes found: ' .
+                                    $duplicates->implode(', ')
+                                );
+                            }
+                        },
+                    ])
                     ->visible(function () {
                         return Filament::auth()->user()->can('view import production plan');
                     }),

From 6eda73b4e15018f0f11b9373b5f624d58413b4ab Mon Sep 17 00:00:00 2001
From: dhanabalan <digitalmanufacturingiiot@gmail.com>
Date: Tue, 10 Nov 2026 14:15:57 +0530
Subject: [PATCH 2/2] Changed logic in production plan page against plant code
 checking item code

---
 .../Resources/ProductionPlanResource.php      | 20 ++++++++++++++-----
 1 file changed, 15 insertions(+), 5 deletions(-)

diff --git a/app/Filament/Resources/ProductionPlanResource.php b/app/Filament/Resources/ProductionPlanResource.php
index ad655f12..f6c409c6 100644
--- a/app/Filament/Resources/ProductionPlanResource.php
+++ b/app/Filament/Resources/ProductionPlanResource.php
@@ -839,22 +839,32 @@ class ProductionPlanResource extends Resource
                             $itemCodes = [];
 
                             foreach ($csv->getRecords() as $record) {
-                                $itemCode = trim((string) ($record['Item Code'] ?? ''));
 
-                                if ($itemCode !== '') {
-                                    $itemCodes[] = $itemCode;
+                                $values = array_values($record);
+
+                                $plantCode = trim((string) ($values[0] ?? ''));
+                                $itemCode = trim((string) ($values[1] ?? ''));
+
+                                if ($plantCode === '' || $itemCode === '') {
+                                    continue;
                                 }
+
+                                $key = $plantCode . '|' . $itemCode;
+
+                                $itemCodes[] = $key;
                             }
 
                             $duplicates = collect($itemCodes)
                                 ->duplicates()
                                 ->unique()
+                                ->values()
+                                ->map(fn ($duplicate) => explode('|', $duplicate)[1])
+                                ->unique()
                                 ->values();
 
                             if ($duplicates->isNotEmpty()) {
                                 $fail(
-                                    'Duplicate Item Codes found: ' .
-                                    $duplicates->implode(', ')
+                                    'Duplicate Item Codes found: ' . $duplicates->implode(', ')
                                 );
                             }
                         },