ProductVariant

// RB2 Core Connect

using System.Text.Json;
using CoreConnect.Commerce.Core;
using HotChocolate;
using HotChocolate.Types;
using Attribute = CoreConnect.Commerce.Core.Attribute;

namespace CoreConnect.Commerce.Catalog;

/// <summary>
/// The product variant.
/// </summary>
public class ProductVariant
{
    /// <summary>
    /// The ID of the Product Variant.
    /// </summary>
    public required string Id { get; set; }

    /// <summary>
    /// The SKU of the Product Variant.
    /// </summary>
    public required string Sku { get; set; }

    /// <summary>
    /// The Price Include Tax of the Product Variant.
    /// </summary>
    public Money? PriceInclTax { get; set; }

    /// <summary>
    /// The Price Exclude Tax of the Product Variant.
    /// </summary>
    public Money? PriceExclTax { get; set; }

    /// <summary>
    /// The Sale Price Include Tax (Discounted Price Include Tax) of the Product Variant.
    /// </summary>
    public Money? SalePriceInclTax { get; set; }

    /// <summary>
    /// The Sale Price Exclude Tax (Discounted Price Exclude Tax) of the Product Variant.
    /// </summary>
    public Money? SalePriceExclTax { get; set; }

    /// <summary>
    /// Discounted prices for a product based on quantity tiers
    /// </summary>
    public IEnumerable<TierPrices>? TierPrices { get; set; }

    /// <summary>
    /// The Default Image of the Product Variant.
    /// </summary>
    public Image? DefaultImage { get; set; }

    /// <summary>
    /// The Images of the Product Variant.
    /// </summary>
    public required IEnumerable<Image> Images { get; set; }

    /// <summary>
    /// The Attributes of the Product Variant.
    /// </summary>
    public required IEnumerable<Attribute> Attributes { get; set; }

    /// <summary>
    /// The stock info
    /// </summary>
    public ProductVariantStock? Stock { get; set; }

    /// <summary>
    /// The Inventories of the Product Variant.
    /// </summary>
    public IEnumerable<Inventory>? Inventories { get; set; }
    /// <summary>
    /// Price custom objects.Object is of type CentPrecisionMoney
    /// </summary>
    [GraphQLType(typeof(AnyType))]
    public Dictionary<string, object>? CustomFields { get; set; }
    /// <summary>
    /// Available discounts for a product
    /// </summary>
    public List<string>? Discounts { get; set; }
}

public class ProductVariantStock
{
    public int AvailableQuantity { get; set; }
    public bool IsSellableWithoutStock { get; set; }
    public bool IsAvailable { get; set; }
}

public class Inventory
{
    public required string Id { set; get; }

    public string? ChannelId { set; get; }

    public long? AvailableQuantity { get; set; }
}

[ExtendObjectType<ProductVariant>]
public class ProductVariantExtension
{
    private const string _parsedAttributes = "parsedAttributes";
    public ProductVariantMetadata GetMetadata([Parent] ProductVariant product)
    {
        return SetMetadata(product);
    }

    private static ProductVariantMetadata SetMetadata(ProductVariant product)
    {
        var attributes = product.Attributes
            .ToDictionary(
                a => a.Name,
                a => AttributeValueHelper.GetAttributeValue(a.Value ?? new AttributeValue())
            );
        var jsonAttributes = JsonSerializer.Serialize(attributes);

        return new ProductVariantMetadata(_parsedAttributes, JsonDocument.Parse(jsonAttributes).RootElement);
    }
}

public class ProductVariantMetadata
{
    public ProductVariantMetadata(string key, JsonElement value)
    {
        Key = key;
        Value = value;
    }
    public string Key { get; set; }
    public JsonElement Value { get; set; }
}

public record TierPrices
{
    public string? Discount { get; set; }
    public long? Quantity { get; set; }
    public Money? Price { get; set; }
}