<?php

// app/Http/Controllers/HomeController.php
namespace App\Http\Controllers;

use Illuminate\Http\Request;
use App\Models\Siswa;
use App\Models\Kategori;

class HomeController extends Controller
{
    public function index()
    {
        // Ambil data siswa dan kategori
        $siswa = Siswa::all();
        $kategori = Kategori::all();
        
        // Hitung hasil FMCDM
        $hasilSiswa = [];
        foreach ($siswa as $s) {
            $nilaiA = $this->hitungFmcdm($s, 0);
            $nilaiB = $this->hitungFmcdm($s, 0.5);
            $nilaiC = $this->hitungFmcdm($s, 1);

            $hasilSiswa[] = (object) [
                'nisn' => $s->nisn,
                'nama' => $s->nama,
                'kelas' => $s->kelas,
                'fmcdm_a' => $nilaiA,
                'fmcdm_b' => $nilaiB,
                'fmcdm_c' => $nilaiC,
                'ranking' => 0
            ];
        }

        usort($hasilSiswa, function ($a, $b) {
            return $b->fmcdm_b <=> $a->fmcdm_b;
        });

        foreach ($hasilSiswa as $index => $s) {
            $s->ranking = $index + 1;
        }

        // Kirim data ke view
        return view('welcome', compact('siswa', 'kategori', 'hasilSiswa'));
    }

    private function hitungFmcdm($siswa, $alpha)
    {
        // Implementasi logika perhitungan FMCDM
        return rand(0, 100) / 100; // Contoh nilai acak
    }
}