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<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class Quotation extends Model
{
    protected $fillable = [
        'quotation_id',
        'customer_id',
        'warehouse_id',
        'quotation_date',
        'category_id',
        'status',
        'converted_pos_id',
        'is_converted',
        'created_by',
    ];

    public function customer()
    {
        return $this->hasOne('App\Models\Customer', 'id', 'customer_id');
    }

    public function warehouse()
    {
        return $this->hasOne('App\Models\warehouse', 'id', 'warehouse_id');
    }

    public function items()
    {
        return $this->hasMany('App\Models\QuotationProduct', 'quotation_id', 'id');
    }

    public static function quotationProduct($value , $session_key = 'pos')
    {


        $id = $value->product_id;
            $product = ProductService::find($id);
            $productquantity = 0;

            if ($product) {
                $productquantity = $product->getTotalProductQuantity();
            }

            if (!$product || ($session_key == 'pos' && $productquantity == 0)) {
                return response()->json(
                    [
                        'code' => 404,
                        'status' => 'Error',
                        'error' => __('This product is out of stock!'),
                    ],
                    404
                );
            }

            $productname = $product->name;


            $productprice = $product->sale_price != 0 ? $product->sale_price : 0;


            $originalquantity = (int) $productquantity;

            $quantity = $value->quantity;
            $taxes = Utility::tax($product->tax_id);

            $totalTaxRate = Utility::totalTaxRate($product->tax_id);

            $quotationProduct = QuotationProduct::where('product_id',$id)->get();

            $discount = 0;
            foreach($quotationProduct as $value)
            {
                $discount += $value->discount;
            }

            $product_tax = '';
            $product_tax_id = [];
            foreach ($taxes as $tax) {
                $product_tax .= !empty($tax) ? "<span class='badge badge-primary'>" . $tax->name . ' (' . $tax->rate . '%)' . "</span><br>" : '';
                $product_tax_id[] = !empty($tax) ? $tax->id : 0;
            }

            if (empty($product_tax)) {
                $product_tax = "-";
            }
            $producttax = $totalTaxRate;

            $tax = ($productprice * $producttax * $quantity) / 100;

            $subtotal = $productprice * $quantity + $tax ;
            $netPrice = $subtotal - $discount;
            $cart = session()->get($session_key);
            $image_url = (!empty($product->pro_image) && Storage::exists($product->pro_image)) ? $product->pro_image : 'uploads/pro_image/' . $product->pro_image;

            $model_delete_id = 'delete-form-' . $id;

            // if cart is empty then this the first product
            if (!$cart) {
                $cart = [
                    $id => [
                        "name" => $productname,
                        "quantity" => $quantity,
                        "price" => $productprice,
                        "id" => $id,
                        "tax" => $producttax,
                        "subtotal" => $subtotal,
                        "discount" => $discount,
                        "netPrice"=>$netPrice,
                        "originalquantity" => $originalquantity,
                        "product_tax" => $product_tax,
                        "product_tax_id" => !empty($product_tax_id) ? implode(',', $product_tax_id) : 0,
                    ],
                ];

                if ($originalquantity < $cart[$id]['quantity'] && $session_key == 'pos') {

                return redirect()->back()->with('error',__('This product is out of stock!'));
                    return response()->json(
                        [
                            'code' => 404,
                            'status' => 'Error',
                            'error' => __('This product is out of stock!'),
                        ],
                        404
                    );
                }

                session()->put($session_key, $cart);

                return response()->json(
                    [
                        'code' => 200,
                        'status' => 'Success',
                        'success' => $productname . __(' added to cart successfully!'),
                        'product' => $cart[$id],
                    ]
                );
            }

            // if cart not empty then check if this product exist then increment quantity
            if (isset($cart[$id])) {

                $cart[$id]['quantity']++;
                $cart[$id]['id'] = $id;

                $subtotal = $cart[$id]["price"] * $cart[$id]["quantity"];
                $tax = ($subtotal * $cart[$id]["tax"]) / 100;
                $discount = $cart[$id]["discount"];

                $cart[$id]["subtotal"] = $subtotal + $tax;
                $cart[$id]["originalquantity"] = $originalquantity;
                $cart[$id]["netPrice"] = $subtotal - $discount;

                if ($originalquantity < $cart[$id]['quantity'] && $session_key == 'pos') {
                    return response()->json(
                        [
                            'code' => 404,
                            'status' => 'Error',
                            'error' => __('This product is out of stock!'),
                        ],
                        404
                    );
                }

                session()->put($session_key, $cart);

                return response()->json(
                    [
                        'code' => 200,
                        'status' => 'Success',
                        'success' => $productname . __(' added to cart successfully!'),
                        'product' => $cart[$id],
                        'carttotal' => $cart,
                    ]
                );
            }

            // if item not exist in cart then add to cart with quantity = 1
            $cart[$id] = [
                "name" => $productname,
                "quantity" => 1,
                "price" => $productprice,
                "tax" => $producttax,
                "subtotal" => $subtotal,
                "discount" => $discount,
                "netPrice"=> $netPrice,
                "id" => $id,
                "originalquantity" => $originalquantity,
                "product_tax" => $product_tax,
            ];

            if ($originalquantity < $cart[$id]['quantity'] && $session_key == 'pos') {
                return response()->json(
                    [
                        'code' => 404,
                        'status' => 'Error',
                        'error' => __('This product is out of stock!'),
                    ],
                    404
                );
            }

            session()->put($session_key, $cart);

            return response()->json(
                [
                    'code' => 200,
                    'status' => 'Success',
                    'success' => $productname . __(' added to cart successfully!'),
                    'product' => $cart[$id],
                    'carttotal' => $cart,
                ]
            );
 
    }

}