<?php

namespace App\Http\Controllers;

use App\Models\Medicine;
use App\Models\Food;
use App\Models\Supply;
use App\Traits\LogsActivity; // Tambahkan Trait Log
use Illuminate\Http\Request;
use Illuminate\View\View;
use Illuminate\Http\RedirectResponse;
use Exception;

class InventoryController extends Controller
{
    use LogsActivity;

    /**
     * Tampilkan Inventori Obat.
     */
    public function medicines(): View
    {
        // Model Medicine sudah mendukung casting expired_date & qty float
        $medicines = Medicine::latest()->paginate(10);
        return view('pages.inventory.medicines.index', compact('medicines'));
    }

    /**
     * Tampilkan Inventori Makanan.
     */
    public function foods(): View
    {
        $foods = Food::latest()->paginate(10);
        return view('pages.inventory.foods.index', compact('foods'));
    }

    /**
     * Tampilkan Inventori Perlengkapan.
     */
    public function supplies(): View
    {
        $supplies = Supply::latest()->paginate(10);
        return view('pages.inventory.supplies.index', compact('supplies'));
    }

    /**
     * Update stok secara cepat (Fast Update).
     * Mendukung desimal (ml/butir) dan Audit Trail.
     */
    public function updateStock(Request $request, string $type, int $id): RedirectResponse
{
    // Pastikan validasi tetap mendukung desimal untuk obat cair
    $request->validate([
        'qty' => 'required|numeric|min:0'
    ]);

    try {
        $item = match($type) {
            'medicine' => \App\Models\Medicine::findOrFail($id),
            'food'     => \App\Models\Food::findOrFail($id),
            'supply'   => \App\Models\Supply::findOrFail($id),
            default    => abort(404),
        };

        $oldQty = $item->qty;
        $item->update(['qty' => $request->qty]);

        // FIX: Evaluasi nama barang di luar string agar tidak menyebabkan ParseError
        $itemName = $item->nama_obat ?? $item->nama_makanan ?? $item->nama_barang ?? 'Item';

        $this->logAction(
            'STOCK_ADJUSTMENT', 
            $item, 
            "Penyesuaian stok " . ucfirst($type) . ": {$itemName} (Dari {$oldQty} ke {$request->qty})"
        );

        return back()->with('success', 'Stok ' . ucfirst($type) . ' berhasil diperbarui.');

    } catch (Exception $e) {
        return back()->with('error', 'Gagal memperbarui stok: ' . $e->getMessage());
    }
}
}