<?php

namespace App\Http\Controllers\Admin;

use App\Http\Controllers\Controller;
use Illuminate\Http\Request;
use App\Models\Koleksi;
use App\Models\Publisher;
use App\Models\PublishPlace;
use App\Models\Setting;
use Illuminate\Support\Facades\Storage;
use Barryvdh\DomPDF\Facade\Pdf;
use Milon\Barcode\DNS1D;
class KoleksiController extends Controller
{
    public function __construct()
    {
        
    }

    public function index(Request $request)
    {
        $query = Koleksi::query();

        if ($request->filled('search')) {
            $search = $request->search;
            $query->where(function ($q) use ($search) {
                $q->where('title', 'like', "%{$search}%")
                    ->orWhere('sor', 'like', "%{$search}%")
                    ->orWhere('classification', 'like', "%{$search}%")
                    ->orWhere('kode_eksemplar', 'like', "%{$search}%");
            });
        }

        $results = $query->orderBy('input_date', 'desc')
            ->paginate(20)
            ->withQueryString();

        return view('admin.koleksi.index', compact('results'));
    }

    public function create()
    {
        $publishers = Publisher::all();
        $publishPlaces = PublishPlace::all();

        return view('admin.koleksi.create', compact('publishers', 'publishPlaces'));
    }

    public function store(Request $request)
    {
        $request->validate([
            'title' => 'required|string|max:255',
            'sor' => 'nullable|string|max:255',
            'jumlah_eksemplar' => 'required|integer|min:1',
            'publisher_name' => 'nullable|string|max:255',
            'publish_place_name' => 'nullable|string|max:255',
            'publish_year' => 'nullable|integer',
            'isbn_issn' => 'nullable|string|max:50',
            'edition' => 'nullable|string|max:100',
            'classification' => 'nullable|string|max:100',
            'labels' => 'nullable|string|max:255',
            'image' => 'nullable|file|mimes:jpg,jpeg,png,gif',
            'opac_hide' => 'nullable|boolean',
            'promoted' => 'nullable|boolean',
        ]);

        $jumlah = $request->jumlah_eksemplar;
        $imagePath = $request->hasFile('image') ? $request->file('image')->store('images', 'public') : null;

        for ($i = 1; $i <= $jumlah; $i++) {
            $kodeEksemplar = $this->generateKodeEksemplar();
            $barcodePath = $this->generateBarcode($kodeEksemplar);

            Koleksi::create([
                'title' => $request->title,
                'sor' => $request->sor,
                'publisher_name' => $request->publisher_name,
                'publish_place_name' => $request->publish_place_name,
                'publish_year' => $request->publish_year,

                // 🔥 FIX WAJIB
                'tahun_terbit' => $request->publish_year,

                'isbn_issn' => $request->isbn_issn,
                'edition' => $request->edition,
                'classification' => $request->classification,
                'labels' => $request->labels,
                'image' => $imagePath,
                'barcode' => $barcodePath,
                'kode_eksemplar' => $kodeEksemplar,
                'input_date' => now(),
                'last_update' => now(),
                'uid' => auth()->id(),
                'opac_hide' => $request->opac_hide ?? 0,
                'promoted' => $request->promoted ?? 0,
            ]);
        }

        return redirect()->route('admin.koleksi.index')
            ->with('success', '✅ Koleksi berhasil ditambahkan dengan Barcode.');
    }

    protected function generateKodeEksemplar()
    {
        do {
            $random = str_pad(mt_rand(1, 99999), 5, '0', STR_PAD_LEFT);
            $kode = 'P' . $random . 'S';
        } while (Koleksi::where('kode_eksemplar', $kode)->exists());

        return $kode;
    }

    protected function generateBarcode($kodeEksemplar)
    {
        $barcode = new DNS1D();
        $barcode->setStorPath(storage_path('app/public/barcodes'));

        if (!Storage::disk('public')->exists('barcodes')) {
            Storage::disk('public')->makeDirectory('barcodes');
        }

        $barcodePng = $barcode->getBarcodePNG($kodeEksemplar, 'C39+', 3, 100);
        $barcodePath = "barcodes/{$kodeEksemplar}.png";

        Storage::disk('public')->put($barcodePath, base64_decode($barcodePng));

        return $barcodePath;
    }

    public function printBarcodeSingle($kode_eksemplar)
    {
        $koleksi = Koleksi::where('kode_eksemplar', $kode_eksemplar)->firstOrFail();
        $setting = Setting::first();

        $pdf = Pdf::loadView('admin.koleksi.label_barcode_single', compact('koleksi', 'setting'))
            ->setPaper([0, 0, 200, 120], 'portrait');

        return $pdf->stream("barcode_{$koleksi->kode_eksemplar}.pdf");
    }

    public function printBarcodeMultiple(Request $request)
    {
        $selected = $request->input('selected', []);

        if (!is_array($selected)) {
            $selected = explode(',', $selected);
        }

        if (empty($selected)) {
            return redirect()->back()->with('error', 'Pilih minimal satu koleksi untuk dicetak.');
        }

        $koleksiList = Koleksi::whereIn('kode_eksemplar', $selected)->get();
        $setting = Setting::first();

        $pdf = Pdf::loadView('admin.koleksi.label_barcode_multiple', compact('koleksiList', 'setting'))
            ->setPaper('a4', 'portrait');

        return $pdf->stream("barcode_massal.pdf");
    }

    public function edit($kode_eksemplar)
    {
        $koleksi = Koleksi::where('kode_eksemplar', $kode_eksemplar)->firstOrFail();
        $publishers = Publisher::all();
        $publishPlaces = PublishPlace::all();

        return view('admin.koleksi.edit', compact('koleksi', 'publishers', 'publishPlaces'));
    }

    public function update(Request $request, $kode_eksemplar)
    {
        $koleksi = Koleksi::where('kode_eksemplar', $kode_eksemplar)->firstOrFail();

        $request->validate([
            'title' => 'required|string|max:255',
            'sor' => 'nullable|string|max:255',
            'publisher_name' => 'nullable|string|max:255',
            'publish_place_name' => 'nullable|string|max:255',
            'publish_year' => 'nullable|integer',
            'isbn_issn' => 'nullable|string|max:50',
            'edition' => 'nullable|string|max:100',
            'classification' => 'nullable|string|max:100',
            'labels' => 'nullable|string|max:255',
            'image' => 'nullable|file|mimes:jpg,jpeg,png,gif',
            'opac_hide' => 'nullable|boolean',
            'promoted' => 'nullable|boolean',
        ]);

        if ($request->hasFile('image')) {
            if ($koleksi->image) {
                Storage::disk('public')->delete($koleksi->image);
            }
            $koleksi->image = $request->file('image')->store('images', 'public');
        }

        $koleksi->update([
            'title' => $request->title,
            'sor' => $request->sor,
            'publisher_name' => $request->publisher_name,
            'publish_place_name' => $request->publish_place_name,
            'publish_year' => $request->publish_year,

            // 🔥 FIX WAJIB
            'tahun_terbit' => $request->publish_year,

            'isbn_issn' => $request->isbn_issn,
            'edition' => $request->edition,
            'classification' => $request->classification,
            'labels' => $request->labels,
            'image' => $koleksi->image,
            'opac_hide' => $request->opac_hide ?? 0,
            'promoted' => $request->promoted ?? 0,
            'last_update' => now(),
        ]);

        return redirect()->route('admin.koleksi.index')
            ->with('success', '✅ Data koleksi berhasil diperbarui.');
    }

   public function destroy($kode_eksemplar)
{
    $koleksi = Koleksi::where('kode_eksemplar', $kode_eksemplar)->firstOrFail();

    if ($koleksi->image) {
        // Cek apakah ada eksemplar LAIN yang masih menggunakan gambar ini
        $fotoMasihDipakai = Koleksi::where('image', $koleksi->image)
            ->where('kode_eksemplar', '!=', $kode_eksemplar)
            ->exists();

        // Jika tidak ada eksemplar lain yang pakai, baru hapus file fisiknya
        if (!$fotoMasihDipakai) {
            Storage::disk('public')->delete($koleksi->image);
        }
    }
    
    // Barcode tetap langsung dihapus karena setiap eksemplar punya barcode unik
    if ($koleksi->barcode) {
        Storage::disk('public')->delete($koleksi->barcode);
    }

    $koleksi->delete();

    return redirect()->route('admin.koleksi.index')
        ->with('success', '✅ Koleksi berhasil dihapus.');
}
 // ... (di dalam KoleksiController)

public function printMultipleBarcode(Request $request)
{
    // 1. Validasi input
    if (!$request->has('kode_eksemplar') || !is_array($request->kode_eksemplar)) {
        return redirect()->back()->with('error', 'Silakan centang minimal satu koleksi terlebih dahulu.');
    }

    $kodeEksemplarArray = $request->kode_eksemplar;

    // --- BAGIAN INI DIPERBAIKI ---
    // Mengurutkan data agar sama persis dengan urutan centang (array input)
    $orderList = "'" . implode("','", $kodeEksemplarArray) . "'";
    
    $items = Koleksi::whereIn('kode_eksemplar', $kodeEksemplarArray)
                ->orderByRaw("FIELD(kode_eksemplar, $orderList)")
                ->get();
    // -----------------------------

    if ($items->isEmpty()) {
        return redirect()->back()->with('error', 'Data koleksi yang Anda pilih tidak ditemukan.');
    }

    $setting = Setting::first();

    // 2. Render PDF
    $pdf = Pdf::loadView('admin.koleksi.barcode_multiple', compact('items', 'setting'));
    
    // 3. Atur kertas
    $pdf->setPaper('a4', 'portrait');

    // 4. Stream PDF
    return $pdf->stream('Label_Barcode_Massal.pdf');
}
public function destroyMultiple(Request $request)
{
    $kodese = $request->input('kode_eksemplar', []);

    if (empty($kodese)) {
        return redirect()->back()->with('error', 'Tidak ada item yang dipilih.');
    }

    // Ambil semua data koleksi yang kodenya sesuai array
    $koleksis = Koleksi::whereIn('kode_eksemplar', $kodese)->get();

    foreach ($koleksis as $koleksi) {
        // Contoh logika hapus file cover jika tidak dipakai eksemplar lain
        if ($koleksi->image) {
            $fotoMasihDipakai = Koleksi::where('image', $koleksi->image)
                ->whereNotIn('kode_eksemplar', $kodese)
                ->exists();
            if (!$fotoMasihDipakai) {
                Storage::disk('public')->delete($koleksi->image);
            }
        }

        // Hapus file barcode asli jika disimpan fisik
        if ($koleksi->barcode) {
            Storage::disk('public')->delete($koleksi->barcode);
        }

        $koleksi->delete();
    }

    return redirect()->route('admin.koleksi.index')->with('success', count($kodese) . ' data koleksi berhasil dihapus sekaligus.');
}
}