sigd/app/Http/Controllers/Reports/GpcOutputController.php

<?php

namespace App\Http\Controllers\Reports;

use App\Exports\GpcOutputExport;
use App\Http\Controllers\Controller;
use App\Models\ActivityGpcOutput;
use App\Services\Reports\GpcOutputService;
use Illuminate\Support\Facades\Validator;
use Maatwebsite\Excel\Facades\Excel;
use Illuminate\Http\Request;

class GpcOutputController extends Controller
{
    protected $service;

    public function __construct(GpcOutputService $service)
    {
        $this->service = $service;
    }

    public function show($inventoryYear = null)
    {
        $inventoryYear = $inventoryYear ?? date('Y');
        $years = activityYearRange($inventoryYear, false);

        $gpcOutputs = ActivityGpcOutput::where('inventory_year', $inventoryYear)
            ->rowActive()->orderBy('activity_year', 'desc')
            ->whereBetween('activity_year', [$years[0], end($years)])
            ->get();

        $gpcOutputRList = [];
        foreach ($gpcOutputs as $gpcOutput) {
            $gpcOutputRList[] = $gpcOutput->getAllColumnsWithReference();
        }

        return view('reports.gpc-output.index', [
            'inventoryYear' => $inventoryYear,
            'gpcOutputs' => $gpcOutputs,
            'gpcOutputRList' => $gpcOutputRList,
        ]);
    }

    public function export(Request $request)
    {
        $validator = Validator::make($request->all(), [
            'inventoryYear' => 'required|integer',
        ]);

        if ($validator->fails()) {
            return redirect()->back()->withErrors($validator)->withInput();
        }

        $inventoryYear = $request->input('inventoryYear');

        // Fetch the necessary data
        $gpcOutputs = ActivityGpcOutput::where('inventory_year', $inventoryYear)
            ->rowActive()->orderBy('activity_year', 'desc')->get();

        $gpcOutputRList = [];
        foreach ($gpcOutputs as $gpcOutput) {
            $gpcOutputRList[] = $gpcOutput->getAllColumnsWithReference();
        }

        $titleExcel = 'GPC-OUTPUT_' . $inventoryYear;

        return Excel::download(new GpcOutputExport($inventoryYear, $gpcOutputs, $gpcOutputRList), $titleExcel . '.xlsx');
    }
}