<?php

namespace App\Http\Controllers;

use App\Models\Barang;
use App\Models\Pesanan;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Storage;
use Illuminate\Support\Facades\View;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\DB;

class BarangController extends Controller
{
    public function __construct()
    {
        $this->middleware('auth')->except(['index', 'show']);
    }

    public function index(Request $request)
    {
        $query = Barang::latest();
        
        if ($request->has('kategori')) {
            $query->where('kategori', $request->kategori);
        }

        if ($request->has('search')) {
            $searchTerm = $request->search;
            $query->where(function($q) use ($searchTerm) {
                $q->where('nama_barang', 'LIKE', "%{$searchTerm}%")
                  ->orWhere('deskripsi', 'LIKE', "%{$searchTerm}%")
                  ->orWhere('kategori', 'LIKE', "%{$searchTerm}%");
            });
        }
        
        $barang = $query->get();
        return view('barang.index', compact('barang'));
    }

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

    public function store(Request $request)
    {
        $request->validate([
            'barang_id' => 'required|exists:barang,id',
            'jumlah' => 'required|integer|min:1',
            'catatan' => 'nullable|string|max:255',
        ]);

        $barang = Barang::findOrFail($request->barang_id);

        // Cek stok
        if ($barang->stok < $request->jumlah) {
            return back()->with('error', 'Stok tidak mencukupi');
        }

        // Buat pesanan
        $pesanan = Pesanan::create([
            'user_id' => auth()->id(),
            'barang_id' => $request->barang_id,
            'jumlah' => $request->jumlah,
            'total_harga' => $barang->harga * $request->jumlah,
            'status' => 'pending',
            'catatan' => $request->catatan,
        ]);

        // Kurangi stok
        $barang->update([
            'stok' => $barang->stok - $request->jumlah
        ]);

        return redirect()->route('pesanan.show', $pesanan)
            ->with('success', 'Pesanan berhasil dibuat');
    }

    public function show(Barang $barang)
    {
        return view('barang.show', compact('barang'));
    }

    public function edit(Barang $barang)
    {
        return view('barang.edit', compact('barang'));
    }

    public function update(Request $request, Barang $barang)
    {
        $request->validate([
            'nama_barang' => 'required|string|max:255',
            'deskripsi' => 'nullable|string',
            'harga' => 'required|numeric|min:0',
            'stok' => 'required|integer|min:0',
            'kategori' => 'required|string|in:Lampu,Kipas,Kulkas,TV,Magic Com,Mesin Cuci,Kompor',
            'gambar' => 'nullable|image|mimes:jpeg,png,jpg|max:2048'
        ]);

        $data = $request->all();

        if ($request->hasFile('gambar')) {
            // Delete old image
            if ($barang->gambar) {
                Storage::disk('public')->delete($barang->gambar);
            }

            $gambar = $request->file('gambar');
            // Simpan dengan nama asli
            $fileName = $gambar->getClientOriginalName();
            // Pastikan nama file tidak ada spasi dan karakter khusus
            $fileName = preg_replace('/[^A-Za-z0-9\-\_\.]/', '', $fileName);
            $path = $gambar->storeAs('products', $fileName, 'public');
            $data['gambar'] = $path;
        }

        $barang->update($data);
        return redirect()->route('barang.index')->with('success', 'Barang berhasil diperbarui');
    }

    public function destroy(Barang $barang)
    {
        if ($barang->gambar) {
            Storage::disk('public')->delete($barang->gambar);
        }

        $barang->delete();
        return redirect()->route('barang.index')->with('success', 'Barang berhasil dihapus');
    }

    public function checkout(Request $request)
    {
        // Cek role user
        if (Auth::user()->role !== 'customer') {
            return back()->with('error', 'Anda tidak memiliki akses untuk melakukan checkout');
        }

        $request->validate([
            'barang_id' => 'required|exists:barang,id',
            'jumlah' => 'required|integer|min:1',
            'catatan' => 'nullable|string'
        ]);

        $barang = Barang::findOrFail($request->barang_id);

        // Cek stok
        if ($barang->stok < $request->jumlah) {
            return back()->with('error', 'Stok tidak mencukupi');
        }

        $total = $barang->harga * $request->jumlah;

        // Buat pesanan langsung
        $pesanan = Pesanan::create([
            'user_id' => Auth::id(),
            'barang_id' => $request->barang_id,
            'jumlah' => $request->jumlah,
            'total_harga' => $total,
            'status' => 'pending',
            'catatan' => $request->catatan
        ]);

        // Kurangi stok
        $barang->update([
            'stok' => $barang->stok - $request->jumlah
        ]);

        return redirect()->route('pesanan.show', $pesanan)
            ->with('success', 'Pesanan berhasil dibuat');
    }
}