<?php

namespace App\Http\Livewire\Admin\Order;

use App\Http\Livewire\ConvertEmptyStringsToNull;
use App\Http\Livewire\General;
use App\Models\Order;
use App\Models\OrderProduct;
use App\Models\Product;
use Illuminate\Support\Facades\DB;
use Livewire\Component;

class UpdateQuantity extends Component
{
    use ConvertEmptyStringsToNull;
    use General;

    public $quantity;

    public Order $order;

    public Product $product;

    public $orderProductsCount;

    public OrderProduct $orderProduct;

    public function render()
    {
        return view('livewire.admin.order.update-quantity');
    }

    public function update()
    {
        $this->validate([
            'quantity' => 'required|integer|min:0|max:999999999999999|not_in:'.$this->orderProduct->quantity,
        ], [
            'quantity.not_in' => 'تعداد باید مخالف مقدار فعلی باشد.',
        ]);

        if ($this->isLastProduct()) {
            $this->quantity = $this->orderProduct->quantity;

            $this->ajaxDoneMessage('با حذف این مورد هیچ محصولی در سفارش نخواهد بود! برای حذف کل سفارش از دکمه حذف در لیست سفارشات استفاده کنید.',
                'warning');

            return;
        }

        $diff_quantity = $this->orderProduct->quantity - $this->quantity;

        DB::transaction(function () use ($diff_quantity) {
            $this->order->update([
                'price' => $this->order->price - ($this->orderProduct->price * $diff_quantity),
                'discount' => $this->order->discount - ($this->orderProduct->discount * $diff_quantity),
            ]);

            if ($this->quantity == 0) {
                $this->orderProduct->delete();
            } else {
                $this->orderProduct->update([
                    'quantity' => $this->quantity,
                ]);
            }
        });

        saveActivity("محصولات سفارش {$this->order->tracking_code} ویرایش شد", $this->order);

        $this->doneMessage();

        return redirect()->route('admin.orders.edit', $this->order);
    }

    private function isLastProduct(): bool
    {
        return $this->quantity == 0 && $this->orderProductsCount == 1;
    }
}