<?php

namespace App\Http\Controllers\Guru;

use App\Http\Controllers\Controller;
use App\Models\SoalPilgan;
use App\Models\Ujian;
 use App\Exports\SoalPilganExport;
use App\Imports\SoalPilganImport;
use Maatwebsite\Excel\Facades\Excel;
use Illuminate\Http\Request;

class SoalPilganController extends Controller
{
    // Menampilkan daftar soal
    public function index($ujian_id)
    {
        $ujian = Ujian::findOrFail($ujian_id);
        $soalPilgan = SoalPilgan::where('ujian_id', $ujian_id)->get();
        return view('guru.soal_pilgan.index', compact('ujian', 'soalPilgan'));
    }

    // Menampilkan form tambah soal
    public function create($ujian_id)
    {
        $ujian = Ujian::findOrFail($ujian_id);
        return view('guru.soal_pilgan.create', compact('ujian'));
    }

    // Menyimpan soal baru
    public function store(Request $request, $ujian_id)
    {
        $data = $request->validate([
            'pertanyaan' => 'required|string',
            'opsi_a'     => 'required|string',
            'opsi_b'     => 'required|string',
            'opsi_c'     => 'required|string',
            'opsi_d'     => 'required|string',
            'jawaban_benar'    => 'required|in:a,b,c,d',
        ]);

        // Menyimpan soal
        SoalPilgan::create(array_merge($data, ['ujian_id' => $ujian_id]));

        return redirect()
            ->route('guru.ujian.soal_pg', $ujian_id)
            ->with('success', 'Soal PG berhasil ditambahkan.');
    }

    // Menampilkan form edit soal
    public function edit($ujian_id, $soal_id)
    {
        // Mencari soal berdasarkan ID soal dan ID ujian
        $soal = SoalPilgan::where('ujian_id', $ujian_id)->findOrFail($soal_id);
        return view('guru.soal_pilgan.edit', compact('soal', 'ujian_id'));
    }
    
    // Memperbarui soal
    public function update(Request $request, $ujian_id, $soal_id)
{
    // Mencari soal berdasarkan ID soal dan ID ujian
    $soal = SoalPilgan::where('ujian_id', $ujian_id)->findOrFail($soal_id);

    // Validasi input
    $data = $request->validate([
        'pertanyaan' => 'required|string',
        'opsi_a'     => 'required|string',
        'opsi_b'     => 'required|string',
        'opsi_c'     => 'required|string',
        'opsi_d'     => 'required|string',
        'jawaban_benar' => 'required|in:a,b,c,d',
    ]);

    // Memperbarui soal
    $soal->update($data);

    return redirect()
        ->route('guru.ujian.soal_pg', $ujian_id)
        ->with('success', 'Soal PG berhasil diperbarui.');
}

    // Menghapus soal
    public function destroy($ujian_id, $soal_id)
    {
        // Mencari soal berdasarkan ID soal dan ID ujian
        $soal = SoalPilgan::where('ujian_id', $ujian_id)->findOrFail($soal_id);

        // Menghapus soal
        $soal->delete();

        return redirect()
            ->route('guru.ujian.soal_pg', $ujian_id)
            ->with('success', 'Soal PG berhasil dihapus.');
    }

   

// Export Excel
public function exportExcel($ujian_id)
{
    $fileName = 'soal_pilgan_ujian_'.$ujian_id.'.xlsx';
    return Excel::download(new SoalPilganExport($ujian_id), $fileName);
}

// Import Excel (form upload)
public function importExcel(Request $request, $ujian_id)
{
    $request->validate([
        'file' => 'required|file|mimes:xlsx,xls,csv',
    ]);

    Excel::import(new SoalPilganImport($ujian_id), $request->file('file'));

    return redirect()
        ->route('guru.ujian.soal_pg', $ujian_id)
        ->with('success', 'Soal PG berhasil diimport dari Excel.');
}

}