<?php

namespace App\Http\Controllers\Admin\Manage;

use App\Http\Controllers\Controller;
use App\Http\Requests\Admin\Manage\Order\AddToCartRequest;
use App\Models\OrderItem;
use Illuminate\Http\RedirectResponse;

class OrderCartController extends Controller
{
    public function addToCart(AddToCartRequest $request): RedirectResponse
    {
        $validated = $request->validated();

        $item = OrderItem::where('user_id', auth()->id())
            ->whereNull('order_id')
            ->where('product_id', $validated['product_id'])
            ->where('price_type', $validated['price_type'])
            ->first();

        if ($item) {
            $newQty = $item->qty + $validated['qty'];

            if ($newQty <= 0) {
                $item->delete();
            } else {
                $item->update([
                    'qty' => $newQty,
                    'total' => $newQty * $item->price,
                ]);
            }
        } else {
            if ($validated['qty'] > 0) {
                OrderItem::create([
                    'user_id' => auth()->id(),
                    'order_id' => null,
                    'product_id' => $validated['product_id'],
                    'qty' => $validated['qty'],
                    'price' => $validated['price'],
                    'total' => $validated['qty'] * $validated['price'],
                    'price_type' => $validated['price_type'],
                ]);
            }
        }

        return redirect()->back();
    }

    public function removeFromCart(OrderItem $orderItem): RedirectResponse
    {
        if ($orderItem->user_id === auth()->id() && $orderItem->order_id === null) {
            $orderItem->delete();
        }

        return redirect()->back();
    }

    public function updateCartItem(AddToCartRequest $request, OrderItem $orderItem): RedirectResponse
    {
        if ($orderItem->user_id !== auth()->id() || $orderItem->order_id !== null) {
            return redirect()->back();
        }

        $validated = $request->validated();

        $orderItem->update([
            'qty' => $validated['qty'],
            'total' => $validated['qty'] * $orderItem->price,
        ]);

        return redirect()->back();
    }
}