nshop/packages/Longyi/Gift/src/Models/GiftCards.php

<?php

namespace Longyi\Gift\Models;

use Brainstream\Giftcard\Models\GiftCard;
use Brainstream\Giftcard\Models\GiftCardBalance;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Longyi\Gift\Contracts\GiftCards as GiftCardsContract;

class GiftCards extends Model implements GiftCardsContract
{
    use HasFactory;

    protected $table = 'gift_cards';

    protected $fillable = [
        'giftcard_number',
        'giftcard_amount',
        'used_giftcard_amount',
        'remaining_giftcard_amount',
        'customer_id',
        'expirationdate',
        'giftcard_status',
    ];

    protected $casts = [
        'giftcard_amount' => 'decimal:2',
        'used_giftcard_amount' => 'decimal:2',
        'remaining_giftcard_amount' => 'decimal:2',
        'customer_id' => 'integer',
        'expirationdate' => 'date',
    ];

    public static function setGiftCardCode($giftcard)
    {
        if (!$giftcard) {
            return false;
        }
        $cart = cart()->getCart();
        $cart->giftcard_number = $giftcard->giftcard_number;
        // 计算可以使用的礼品卡金额
        if ($cart->grand_total <= $giftcard->remaining_giftcard_amount) {
            $cart->giftcard_amount = $cart->grand_total;
        } else {
            $cart->giftcard_amount = $giftcard->remaining_giftcard_amount;
        }
        // 更新购物车总额
        $cart->grand_total = max(0, $cart->grand_total - $cart->giftcard_amount);
        $cart->base_grand_total = max(0, $cart->base_grand_total - $cart->giftcard_amount);
        $cart->save();
        return true;
    }

    public static function removeGiftCardCode()
    {
        $cart = cart()->getCart();
        $giftcardAmount = $cart->giftcard_amount ?? 0;

        // 清除购物车中的礼品卡标记
        $cart->giftcard_number = null;
        $cart->giftcard_amount = null;

        // 恢复购物车总额
        $cart->grand_total += $giftcardAmount;
        $cart->base_grand_total += $giftcardAmount;

        $cart->save();

        return true;
    }
}