From 30e7fe9a3f0a4697e147dcba3f7be85377b37437 Mon Sep 17 00:00:00 2001
From: dhanabalan <digitalmanufacturingiiot@gmail.com>
Date: Tue, 3 Nov 2026 11:50:29 +0530
Subject: [PATCH] Added day plan target import page

---
 app/Imports/DayPlanTargetImport.php | 188 ++++++++++++++++++++++++++++
 1 file changed, 188 insertions(+)
 create mode 100644 app/Imports/DayPlanTargetImport.php

diff --git a/app/Imports/DayPlanTargetImport.php b/app/Imports/DayPlanTargetImport.php
new file mode 100644
index 00000000..85900033
--- /dev/null
+++ b/app/Imports/DayPlanTargetImport.php
@@ -0,0 +1,188 @@
+<?php
+
+namespace App\Imports;
+
+use App\Models\Item;
+use App\Models\Plant;
+use App\Models\ProductionCalendar;
+use App\Models\ProductionPlan;
+use App\Models\ProductionPlanTarget;
+use Illuminate\Support\Collection;
+use Maatwebsite\Excel\Concerns\ToCollection;
+use Maatwebsite\Excel\Concerns\WithHeadingRow;
+use Maatwebsite\Excel\Concerns\WithCalculatedFormulas;
+use Illuminate\Support\Facades\DB;
+use Exception;
+use Carbon\Carbon;
+
+class DayPlanTargetImport implements ToCollection, WithHeadingRow, WithCalculatedFormulas
+{
+    protected $plantId;
+    protected $lineId;
+    protected $year;
+    protected $month;
+    protected $week;
+
+    public function __construct($plantId, $lineId, $year, $month, $week)
+    {
+        $this->plantId = $plantId;
+        $this->lineId = $lineId;
+        $this->year = $year;
+        $this->month = $month;
+        $this->week = strtolower($week);
+    }
+
+
+    public function collection(Collection $rows)
+    {
+        $weekMapping = [
+            'week_1' => 1,
+            'week_2' => 8,
+            'week_3' => 15,
+            'week_4' => 22,
+            'week_5' => 29,
+        ];
+
+        if (!isset($weekMapping[$this->week])) {
+            throw new Exception('Invalid week selected.');
+        }
+
+        $startDay = $weekMapping[$this->week];
+
+        $daysInMonth = cal_days_in_month(
+            CAL_GREGORIAN,
+            (int) $this->month,
+            (int) $this->year
+        );
+
+        $maxDays = min(7, $daysInMonth - $startDay + 1);
+
+        if ($maxDays <= 0) {
+            throw new Exception('Selected week is outside the selected month.');
+        }
+
+        DB::transaction(function () use ($rows, $startDay, $maxDays) {
+
+            // Get calendar leave dates
+            $calendar = ProductionCalendar::where('plant_id', $this->plantId)
+                ->whereMonth('created_at', $this->month)
+                ->whereYear('created_at', $this->year)
+                ->first();
+
+            $leaveDates = $calendar->leave_dates ?? [];
+
+            if (is_string($leaveDates)) {
+                $leaveDates = explode(',', $leaveDates);
+            }
+
+            $leaveDates = collect($leaveDates)
+                ->map(fn ($date) => trim((string) $date))
+                ->filter()
+                ->map(fn ($date) => Carbon::parse($date)->format('Y-m-d'))
+                ->toArray();
+
+            foreach ($rows as $index => $row) {
+
+                $excelValues = array_values($row->toArray());
+
+                // First two columns
+                $plantCode = trim((string) ($excelValues[0] ?? ''));
+                $itemCode = trim((string) ($excelValues[1] ?? ''));
+
+                if ($plantCode === '' || $itemCode === '') {
+                    throw new Exception(
+                        'Plant Code or Item Code missing in Excel row ' . ($index + 2)
+                    );
+                }
+
+                $plant = Plant::where('code', $plantCode)->first();
+
+                if (!$plant) {
+                    throw new Exception("Plant Code {$plantCode} not found.");
+                }
+
+                $item = Item::where('code', $itemCode)
+                    ->where('plant_id', $plant->id)
+                    ->first();
+
+                if (!$item) {
+                    throw new Exception(
+                        "Item Code {$itemCode} not found for Plant Code {$plantCode}."
+                    );
+                }
+
+                $plan = ProductionPlan::where('plant_id', $plant->id)
+                    ->where('item_id', $item->id)
+                    ->whereMonth('created_at', $this->month)
+                    ->whereYear('created_at', $this->year)
+                    ->first();
+
+                if (!$plan) {
+                    throw new Exception(
+                        "Production plan not found for Item Code: {$itemCode}"
+                    );
+                }
+
+                // Remaining columns contain daily quantities
+                $dayValues = array_slice($excelValues, 2);
+
+                $updateData = [];
+
+                for ($i = 0; $i < $maxDays; $i++) {
+
+                    $databaseDay = $startDay + $i;
+
+                    $date = Carbon::create(
+                        $this->year,
+                        $this->month,
+                        $databaseDay
+                    )->format('Y-m-d');
+
+                    // Leave date: always zero
+                    if (in_array($date, $leaveDates)) {
+                        $updateData["day_{$databaseDay}"] = 0;
+                        continue;
+                    }
+
+                    $quantity = $dayValues[$i] ?? null;
+
+                    // Blank quantity: do not update
+                    if ($quantity === null || trim((string) $quantity) === '') {
+                        continue;
+                    }
+
+                    if (!is_numeric($quantity) || $quantity < 0) {
+                        throw new Exception(
+                            "Invalid quantity for Plant {$plantCode}, Item {$itemCode}, Day {$databaseDay}."
+                        );
+                    }
+
+                    $updateData["day_{$databaseDay}"] = $quantity;
+                }
+
+                if (!empty($updateData)) {
+                    $plan->update($updateData);
+
+                    // Refresh the latest database values
+                    $plan->refresh();
+
+                    // Calculate total of day_1 to day_31
+                    $totalPlanQuantity = 0;
+
+                    for ($day = 1; $day <= 31; $day++) {
+
+                        $totalPlanQuantity += (float) (
+                            $plan->{"day_{$day}"} ?? 0
+                        );
+                    }
+
+                    // Update monthly plan quantity
+                    $plan->update([
+                        'plan_quantity' => $totalPlanQuantity,
+                    ]);
+                }
+            }
+        });
+    }
+
+}
-- 
2.49.1