<?php

namespace App\Http\Controllers\Admin;

use App\Http\Controllers\Controller;
use Illuminate\Http\Request;
use App\Models\Challenge;
use App\Models\Kelas;
use App\Models\SoalChallenge;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\DB;


class ChallengeController extends Controller
{
    public function index()
    {
        $challenges = Challenge::latest()->get();
        $kelass = Kelas::all();   
    return view('admin.challenge.index', compact('challenges', 'kelass'));
    }

    public function create()
    {
        return view('admin.challenge.create');
    }

public function store(Request $request)
{
    $request->validate([
        'judul_challenge' => 'required',
        'exp' => 'required|integer|min:1',
        'tenggat_waktu' => 'required|date',
        'kelas' => 'required|array',
        'pertanyaan' => 'required|array|min:1'
    ]);

    DB::transaction(function () use ($request) {

        $challenge = Challenge::create([
            'id_admin' => auth('admin')->id(),
            'judul_challenge' => $request->judul_challenge,
            'deskripsi' => $request->deskripsi,
            'exp' => $request->exp,
            'tenggat_waktu' => $request->tenggat_waktu,
        ]);

        $challenge->kelas()->attach($request->kelas);

        $jumlahSoal = count($request->pertanyaan);
        $expPerSoal = floor($request->exp / $jumlahSoal);

        foreach ($request->pertanyaan as $i => $pertanyaan) {
            SoalChallenge::create([
                'id_challenge' => $challenge->id_challenge,
                'pertanyaan' => $pertanyaan,
                'opsi_a' => $request->opsi_a[$i],
                'opsi_b' => $request->opsi_b[$i],
                'opsi_c' => $request->opsi_c[$i],
                'opsi_d' => $request->opsi_d[$i],
                'jawaban_benar' => $request->jawaban_benar[$i],
                'exp_per_soal' => $expPerSoal,
            ]);
        }

    });

    return redirect()->route('admin.challenge.index')
        ->with('success', 'Challenge & soal berhasil dibuat!');
}

    public function edit($id)
    {
        $challenge = Challenge::findOrFail($id);
        return view('admin.challenge.edit', compact('challenge'));
    }

    public function update(Request $request, $id)
    {
        $challenge = Challenge::findOrFail($id);

        $challenge->update([
            'judul_challenge' => $request->judul_challenge,
            'deskripsi' => $request->deskripsi,
            'exp' => $request->exp,
            'tenggat_waktu' => $request->tenggat_waktu,
        ]);

        return redirect()->route('admin.challenge.index')
            ->with('success', 'Challenge berhasil diupdate!');
    }

    public function destroy($id)
    {
        $challenge = Challenge::findOrFail($id);
        $challenge->delete();

        return redirect()->route('admin.challenge.index')
            ->with('success', 'Challenge berhasil dihapus!');
    }
}