<?php

namespace App\Http\Controllers;

use App\Models\Food;
use App\Models\Category;
use App\Traits\LogsActivity;
use Illuminate\Http\Request;
use Illuminate\View\View;
use Illuminate\Http\RedirectResponse;
use Illuminate\Support\Facades\Storage;
use Illuminate\Support\Facades\Gate;

class FoodController extends Controller
{
    use LogsActivity;

    /**
     * Tampilkan daftar stok makanan.
     */
    public function index(Request $request): View
{
    // Proteksi Akses
    Gate::authorize('check-access', ['foods', 'read']);

    $now = now();
    $query = Food::with('category');

    // 1. FILTER KHUSUS (SINKRONISASI DENGAN DASHBOARD)
    if ($request->filled('filter')) {
        $filter = $request->get('filter');

        if ($filter === 'expired') {
            // Menampilkan makanan yang sudah kadaluwarsa
            $query->whereNotNull('expired_at')->where('expired_at', '<', $now);
        } elseif ($filter === 'expiring_soon') {
            // Menampilkan yang kadaluwarsa dalam 7 hari kedepan
            $query->whereNotNull('expired_at')
                  ->whereBetween('expired_at', [$now, $now->copy()->addDays(7)]);
        } elseif ($filter === 'low_stock') {
            // Menampilkan stok kritis
            $query->where('qty', '<=', 5);
        }
    }

    // 2. SEARCH GLOBAL
    if ($request->filled('search')) {
        $search = $request->search;
        $query->where(function($q) use ($search) {
            $q->where('nama_makanan', 'like', "%{$search}%")
              ->orWhere('kategori', 'like', "%{$search}%")
              ->orWhere('unit', 'like', "%{$search}%");
        });
    }

    // 3. SORTING DINAMIS (Menambahkan kembali expired_at)
    $allowedSorts = ['nama_makanan', 'qty', 'expired_at', 'created_at'];
    $sort = in_array($request->get('sort'), $allowedSorts) ? $request->get('sort') : 'nama_makanan';
    $direction = strtolower($request->get('direction')) === 'desc' ? 'desc' : 'asc';

    $foods = $query->orderBy($sort, $direction)
                   ->paginate(15)
                   ->withQueryString();

    // 4. STATISTIK (Komprehensif)
    $totalStock = Food::sum('qty');
    $lowStockCount = Food::where('qty', '<=', 5)->count();
    
    // Hitung item yang expired (Wajib ada kolom expired_at di database)
    $expiredCount = Food::whereNotNull('expired_at')
                        ->where('expired_at', '<', $now)
                        ->count();

    $totalItems = Food::count();

    return view('pages.inventory.foods.index', compact(
        'foods', 
        'totalStock', 
        'lowStockCount', 
        'expiredCount', 
        'totalItems'
    ));
}
    /**
     * Tampilkan form tambah.
     */
    public function create(): View
    {
        return view('pages.inventory.foods.create');
    }

    /**
     * Simpan data makanan baru.
     */
    public function store(Request $request): RedirectResponse
    {
        $validated = $request->validate([
            'nama_makanan' => 'required|string|max:255',
            'qty'          => 'required|numeric|min:0',
            'unit'         => 'required|string|max:50',
            'expired_date' => 'nullable|date|after_or_equal:today',
            'foto_produk'  => 'nullable|image|max:1024',
        ]);

        if ($request->hasFile('foto_produk')) {
            $validated['foto_produk'] = $request->file('foto_produk')->store('foods', 'public');
        }

        // Simpan data & tangkap objeknya untuk logging
        $food = Food::create($validated);
        
        // Tambahkan Log Aktivitas (Sangat penting untuk audit stok)
        $this->logAction('CREATED_FOOD', $food, "Menambah stok pakan baru: {$food->nama_makanan}");

        // FIX: Tambahkan .index agar tidak error RouteNotFound
        return redirect()->route('inventory.foods.index')->with('success', 'Stok pakan berhasil ditambahkan.');
    }

    /**
     * Tampilkan form edit.
     */
    public function edit(Food $food): View
    {
        $categories = Category::all();
        return view('pages.inventory.foods.edit', compact('food', 'categories'));
    }

    /**
     * Update data makanan.
     */
    public function update(Request $request, Food $food): RedirectResponse
    {
        $validated = $request->validate([
            'nama_makanan' => 'required|string|max:255',
            'qty'          => 'required|numeric|min:0',
            'unit'         => 'required|string|max:50',
            'category_id'  => 'nullable|exists:categories,id',
            'expired_date' => 'nullable|date|after_or_equal:today',
            'foto_produk'  => 'nullable|image|max:1024',
        ]);

        if ($request->hasFile('foto_produk')) {
            if ($food->foto_produk) {
                Storage::disk('public')->delete($food->foto_produk);
            }
            $validated['foto_produk'] = $request->file('foto_produk')->store('foods', 'public');
        }

        $food->update($validated);

        $this->logAction('UPDATED_FOOD', $food, "Memperbarui stok pakan: {$food->nama_makanan}");

        // FIX: Tambahkan .index
        return redirect()->route('inventory.foods.index')->with('success', 'Data stok pakan berhasil diperbarui.');
    }

    /**
     * Hapus data makanan.
     */
    public function destroy(Food $food): RedirectResponse
    {
        if (auth()->user()->role !== 'admin') {
            abort(403, 'Hanya Admin yang dapat menghapus data stok pakan.');
        }

        $foodName = $food->nama_makanan;

        if ($food->foto_produk) {
            Storage::disk('public')->delete($food->foto_produk);
        }

        // Log dilakukan SEBELUM delete
        $this->logAction('DELETED_FOOD', $food, "Menghapus data pakan: {$foodName}");

        $food->delete();

        // FIX: Tambahkan .index
        return redirect()->route('inventory.foods.index')->with('success', 'Stok pakan berhasil dihapus.');
    }
}