<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;

class MatrixController extends Controller
{
     public function index()
    {
        $matrix82File = storage_path('app/public/matrix_82.csv');
        $matrix73File = storage_path('app/public/matrix_73.csv');
        $matrix91File = storage_path('app/public/matrix_91.csv');

        $matrix82 = $this->readCsv($matrix82File);
        $matrix73 = $this->readCsv($matrix73File);
        $matrix91 = $this->readCsv($matrix91File);

        return view('matrix', [
            'matrix82' => $matrix82,
            'matrix73' => $matrix73,
            'matrix91' => $matrix91,
        ]);
    }

    private function readCsv($file)
    {
        $rows = [];
        if (($handle = fopen($file, 'r')) !== false) {
            while (($data = fgetcsv($handle, 1000, ',')) !== false) {
                $rows[] = $data;
            }
            fclose($handle);
        }
        return $rows;
    }
}