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Current File : /var/www/finance.uiet.co.in/UietFinance/app/Exports/EmployeeWageExport.php

<?php

namespace App\Exports;

use App\Models\EmployeeWageDetailsModel;
use Maatwebsite\Excel\Concerns\FromCollection;
use Maatwebsite\Excel\Concerns\WithHeadings;
use Carbon\Carbon;

class EmployeeWageExport implements FromCollection,WithHeadings
{
    protected $month;
    protected $year;

    /**
     * Constructor to accept month and year (optional)
     */
    public function __construct($month = null, $year = null)
    {
        // If month/year is null, calculate the previous month and year
        if (!$month || !$year) {
            $previousMonth = Carbon::now()->subMonth();
            $this->month = $previousMonth->format('m'); // Get previous month (01-12)
            $this->year = $previousMonth->format('Y');  // Get previous year
        } else {
            $this->month = $month;
            $this->year = $year;
        }
    }

    /**
     * Return the collection of rows based on the month and year
     * @return \Illuminate\Support\Collection
     */
    public function collection()
    {
        // Fetch the distinct employees for the given month and year
        $data = EmployeeWageDetailsModel::where('month', $this->month)
            ->where('year', $this->year)
            ->distinct('name', 'sub')  // Ensures uniqueness based on name and sub
            ->get(['name', 'sub', 'father_name', 'designation', 'paid_days', 'extra_duty',
                'rate_of_wage', 'gross_pay', 'extra_wages',
                'epf', 'esic', 'total_deduction', 'net_pay', 'signature']);  // Fetch only the required columns

        // Add empty values for other columns in the database schema
        return $data->map(function ($item) {
            return [
                'name'             => $item->name,
                'sub'              => $item->sub,
                'father_name'      => $item->father_name,
                'designation'      => $item->designation,
                'paid_days'        => $item->paid_days,  // Empty value for this column
                'extra_duty'       => $item->extra_duty,  // Empty value for this column
                'rate_of_wage'     => $item->rate_of_wage,  // Empty value for this column
                'gross_pay'        => $item->gross_pay,  // Empty value for this column
                'extra_wages'      => $item->extra_wages,  // Empty value for this column
                'epf'              => $item->epf,  // Empty value for this column
                'esic'             => $item->esic,  // Empty value for this column
                'total_deduction'  => $item->total_deduction,  // Empty value for this column
                'net_pay'          => $item->net_pay,  // Empty value for this column
                'signature'        => $item->signature,  // Empty value for this column
            ];
        });
    }

    /**
     * Return the headings for the Excel file.
     *
     * @return array
     */
    public function headings(): array
    {
        // Define headings in snake_case that need to be converted to Capital Case
        $columns = [
            'name', 'sub', 'father_name',
            'designation', 'paid_days', 'extra_duty',
            'rate_of_wage', 'gross_pay', 'extra_wages',
            'epf', 'esic', 'total_deduction', 'net_pay', 'signature'
        ];

        // Convert each snake_case column to Capital Case
        return array_map(function ($column) {
            return ucfirst(str_replace('_', ' ', $column)); // Convert to "Capital Case"
        }, $columns);


    }
}