<?php

namespace App\Http\Controllers\Guru;

use App\Http\Controllers\Controller;
use Illuminate\Http\Request;
use App\Models\Materi;
use App\Models\Tugas;
use App\Models\Guru;
use App\Models\Kelas;

class MateriController extends Controller
{
    protected function getGuruId()
    {
        $guru = Guru::where('user_id', auth()->id())->firstOrFail();
        return $guru->id;
    }

public function index(Request $request)
{
    $guruId = $this->getGuruId();

    $mapelIds = Guru::find($guruId)->mapel()->pluck('mapels.id')->toArray();

    $materi = Materi::with('children')
        ->whereNull('parent_id')
        ->where('guru_id', $guruId)
        ->whereIn('mapel_id', $mapelIds)
        ->get();

    $mapel = Guru::find($guruId)->mapel()->first(); // ambil mapel pertama untuk passing ke view

    return view('guru.materi.index', compact('materi', 'mapel'));
}


    public function preview($id)
    {
        $materi = Materi::findOrFail($id);
        $tugas = Tugas::where('materi_id', $id)->get();

        return view('guru.materi.tab', compact('materi',  'tugas'));
    }

public function create()
{
    $guruId = auth()->user()->guru->id; // atau cara dapat guru_id sesuai setup kamu
    $mapel = Guru::find($guruId)->mapel()->first();

    $daftarMateriInduk = Materi::where('guru_id', $guruId)
        ->whereNull('parent_id')
        ->get();

    $kelasList = Kelas::all();

    return view('guru.materi.create', compact('mapel', 'daftarMateriInduk', 'kelasList'));
}


    public function store(Request $request)
    {
        $request->validate([
            'judul' => 'required',
            'mapel_id' => 'required|exists:mapels,id',
            'kelas_id' => 'array',
            'kelas_id.*' => 'exists:kelas,id',
            'tanggal_terbit' => 'array',
            'tanggal_terbit.*' => 'nullable|date',
            'parent_id' => 'nullable|exists:materi,id',
            'is_parent' => 'required|in:0,1',
        ]);

        $guruId = $this->getGuruId();
        $materi = Materi::create([
            'guru_id' => $guruId,
            'mapel_id' => $request->mapel_id,
            'judul' => $request->judul,
            'parent_id' => $request->is_parent == 0 ? $request->parent_id : null,
            'isi' => '',
        ]);

        if ($request->has('kelas_id')) {
            $kelasSyncData = [];
            foreach ($request->kelas_id as $kelasId) {
                $kelasSyncData[$kelasId] = [
                    'tanggal_terbit' => $request->tanggal_terbit[$kelasId] ?? null,
                ];
            }

            $materi->kelas()->sync($kelasSyncData);
        }

        return redirect()->route('guru.materi.index')
            ->with('success', 'Materi berhasil disimpan. Silakan isi konten materi.');
    }

public function edit($id)
{
    $materi = Materi::with('kelas')->findOrFail($id);
    $guru = Guru::where('user_id', auth()->id())->firstOrFail();

    $daftarMateriInduk = Materi::whereNull('parent_id')
        ->where('guru_id', $guru->id)
        ->where('id', '!=', $id)
        ->get();

    $daftarMapel = $guru->mapel; // <== Tambahkan ini
    $kelasList = Kelas::all();

    return view('guru.materi.edit', compact('materi', 'daftarMateriInduk', 'kelasList', 'daftarMapel'));
}


    public function update(Request $request, $id)
    {
        $materi = Materi::findOrFail($id);

        $request->validate([
            'judul' => 'required',
            'mapel_id' => 'required|exists:mapels,id',
            'kelas_id' => 'array',
            'kelas_id.*' => 'exists:kelas,id',
            'tanggal_terbit' => 'array',
            'tanggal_terbit.*' => 'nullable|date',
            'parent_id' => 'nullable|exists:materi,id',
            'is_parent' => 'required|in:0,1',
        ]);

        $materi->update([
            'judul' => $request->judul,
            'mapel_id' => $request->mapel_id,
            'parent_id' => $request->is_parent == 0 ? $request->parent_id : null,
        ]);

        if ($request->has('kelas_id')) {
            $kelasSyncData = [];
            foreach ($request->kelas_id as $kelasId) {
                $kelasSyncData[$kelasId] = [
                    'tanggal_terbit' => $request->tanggal_terbit[$kelasId] ?? null,
                ];
            }

            $materi->kelas()->sync($kelasSyncData);
        }

        return redirect()->route('guru.materi.index')->with('success', 'Materi diperbarui');
    }

    public function editIsi($id)
    {
        $materi = Materi::findOrFail($id);
        return view('guru.materi.edit_isi', compact('materi'));
    }

    public function updateIsi(Request $request, $id)
    {
        $materi = Materi::findOrFail($id);

        $request->validate([
            'isi' => 'required',
            'file' => 'nullable|file|mimes:jpeg,jpg,png,gif,svg,pdf,docx,xlsx,mp4,mov|max:20480',
        ]);

        $data = ['isi' => $request->isi];

        if ($request->hasFile('file')) {
            $file = $request->file('file');
            $ext = $file->getClientOriginalExtension();

            if (in_array($ext, ['jpg', 'jpeg', 'png', 'gif', 'svg'])) {
                $path = $file->store('materi_images', 'public');
            } elseif (in_array($ext, ['pdf', 'docx', 'xlsx'])) {
                $path = $file->store('materi_documents', 'public');
            } elseif (in_array($ext, ['mp4', 'mov'])) {
                $path = $file->store('materi_videos', 'public');
            } else {
                return redirect()->back()->withErrors('Format file tidak didukung');
            }

            $data['file'] = $path;
        }

        $materi->update($data);

        return redirect()->route('guru.materi.index')->with('success', 'Isi materi berhasil diperbarui.');
    }

    public function destroy($id)
    {
        $materi = Materi::findOrFail($id);
        $materi->delete();

        return redirect()->route('guru.materi.index')->with('success', 'Materi dihapus');
    }

    public function upload(Request $request)
    {
        $request->validate([
            'file' => 'required|file|mimes:jpeg,jpg,png,gif,svg,pdf,docx,xlsx,mp4|max:20480',
        ]);

        if ($request->hasFile('file')) {
            $file = $request->file('file');
            $ext = $file->getClientOriginalExtension();

            if (in_array($ext, ['jpg', 'jpeg', 'png', 'gif', 'svg'])) {
                $path = $file->store('materi_images', 'public');
            } elseif (in_array($ext, ['pdf', 'docx', 'xlsx'])) {
                $path = $file->store('materi_documents', 'public');
            } elseif ($ext === 'mp4') {
                $path = $file->store('materi_videos', 'public');
            } else {
                return response()->json(['error' => 'Format file tidak didukung'], 400);
            }

            return response()->json([
                'location' => asset('storage/' . $path)
            ]);
        }

        return response()->json(['error' => 'Upload gagal'], 400);
    }
}