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ProductAttributeExtensions.cs

using Nop.Core.Domain.Catalog;

namespace Nop.Services.Catalog;

/// 
/// Extensions
/// 
public static class ProductAttributeExtensions
{
    /// 
    /// A value indicating whether this product attribute should have values
    /// 
    /// Product attribute mapping
    /// Result
    public static bool ShouldHaveValues(this ProductAttributeMapping productAttributeMapping)
    {
        if (productAttributeMapping == null)
            return false;

        if (productAttributeMapping.AttributeControlType == AttributeControlType.TextBox ||
            productAttributeMapping.AttributeControlType == AttributeControlType.MultilineTextbox ||
            productAttributeMapping.AttributeControlType == AttributeControlType.Datepicker ||
            productAttributeMapping.AttributeControlType == AttributeControlType.FileUpload)
            return false;

        //other attribute control types support values
        return true;
    }

    /// 
    /// A value indicating whether this product attribute can be used as condition for some other attribute
    /// 
    /// Product attribute mapping
    /// Result
    public static bool CanBeUsedAsCondition(this ProductAttributeMapping productAttributeMapping)
    {
        if (productAttributeMapping == null)
            return false;

        if (productAttributeMapping.AttributeControlType == AttributeControlType.ReadonlyCheckboxes ||
            productAttributeMapping.AttributeControlType == AttributeControlType.TextBox ||
            productAttributeMapping.AttributeControlType == AttributeControlType.MultilineTextbox ||
            productAttributeMapping.AttributeControlType == AttributeControlType.Datepicker ||
            productAttributeMapping.AttributeControlType == AttributeControlType.FileUpload)
            return false;

        //other attribute control types support it
        return true;
    }

    /// 
    /// A value indicating whether this product attribute should can have some validation rules
    /// 
    /// Product attribute mapping
    /// Result
    public static bool ValidationRulesAllowed(this ProductAttributeMapping productAttributeMapping)
    {
        if (productAttributeMapping == null)
            return false;

        if (productAttributeMapping.AttributeControlType == AttributeControlType.TextBox ||
            productAttributeMapping.AttributeControlType == AttributeControlType.MultilineTextbox ||
            productAttributeMapping.AttributeControlType == AttributeControlType.FileUpload)
            return true;

        //other attribute control types does not have validation
        return false;
    }

    /// 
    /// A value indicating whether this product attribute is non-combinable
    /// 
    /// Product attribute mapping
    /// Result
    public static bool IsNonCombinable(this ProductAttributeMapping productAttributeMapping)
    {
        //When you have a product with several attributes it may well be that some are combinable,
        //whose combination may form a new SKU with its own inventory,
        //and some non-combinable are more used to add accessories

        if (productAttributeMapping == null)
            return false;

        //we can add a new property to "ProductAttributeMapping" entity indicating whether it's combinable/non-combinable
        //but we assume that attributes
        //which cannot have values (any value can be entered by a customer)
        //are non-combinable
        var result = !ShouldHaveValues(productAttributeMapping);
        return result;
    }
}