using Moq;
using Prefab.Shared.Catalog;
using Prefab.Shared.Catalog.Products;
using Prefab.Tests;
using Prefab.Web.Client.Models.Catalog;
using Prefab.Web.Gateway;
using Shouldly;

namespace Prefab.Tests.Unit.Web.Gateway;

[Trait(TraitName.Category, TraitCategory.Unit)]
public sealed class ProductListingServiceShould
{
    [Fact]
    public async Task MapPricesAndImagesFromModuleResponse()
    {
        var categorySlug = "ceiling-supports";
        var moduleClient = new Mock<IModuleClient>();
        var productClient = new Mock<IProductClient>();
        moduleClient.SetupGet(client => client.Product).Returns(productClient.Object);

        var category = new GetCategoryModels.CategoryDetailDto(
            Guid.NewGuid(),
            "Ceiling Supports",
            categorySlug,
            Description: "Fixtures for ceiling support assemblies.",
            HeroImageUrl: "/media/categories/ceiling.jpg",
            Icon: null,
            IsLeaf: true,
            Children: Array.Empty<GetCategoryModels.CategoryNodeDto>());

        var cardId = Guid.NewGuid();
        var response = new GetCategoryModels.CategoryProductsResponse(
            category,
            new[]
            {
                new GetCategoryModels.ProductCardDto(
                    cardId,
                    "Fan Hanger Assembly",
                    "fan-hanger-assembly",
                    FromPrice: 129.99m,
                    PrimaryImageUrl: "/media/products/fan-hanger.jpg",
                    LastModifiedOn: DateTimeOffset.UtcNow)
            },
            Total: 1,
            Page: 1,
            PageSize: 24);

        productClient
            .Setup(client => client.GetCategoryModels(categorySlug, null, null, null, null, It.IsAny<CancellationToken>()))
            .ReturnsAsync(new GetCategoryModels.Response(response));

        var service = new Products.ListingService(moduleClient.Object);
        var result = await service.GetCategoryProducts(categorySlug, CancellationToken.None);

        result.IsSuccess.ShouldBeTrue();
        result.Value.ShouldNotBeNull();

        var model = result.Value;
        model.Category.Slug.ShouldBe(categorySlug);
        model.Products.Count.ShouldBe(1);

        var card = model.Products.Single();
        card.Id.ShouldBe(cardId);
        card.Title.ShouldBe("Fan Hanger Assembly");
        card.Slug.ShouldBe("fan-hanger-assembly");
        card.PrimaryImageUrl.ShouldBe("/media/products/fan-hanger.jpg");
        card.IsPriced.ShouldBeTrue();
        card.FromPrice.ShouldNotBeNull();
        card.FromPrice!.Amount.ShouldBe(129.99m);
    }

    [Fact]
    public async Task MarkProductsWithoutPriceAsUnpriced()
    {
        var categorySlug = "rod-strut-hardware";
        var moduleClient = new Mock<IModuleClient>();
        var productClient = new Mock<IProductClient>();
        moduleClient.SetupGet(client => client.Product).Returns(productClient.Object);

        var category = new GetCategoryModels.CategoryDetailDto(
            Guid.NewGuid(),
            "Rod & Strut Hardware",
            categorySlug,
            Description: null,
            HeroImageUrl: null,
            Icon: null,
            IsLeaf: true,
            Children: Array.Empty<GetCategoryModels.CategoryNodeDto>());

        var response = new GetCategoryModels.CategoryProductsResponse(
            category,
            new[]
            {
                new GetCategoryModels.ProductCardDto(
                    Guid.NewGuid(),
                    "Unpriced Assembly",
                    "unpriced-assembly",
                    FromPrice: null,
                    PrimaryImageUrl: null,
                    LastModifiedOn: DateTimeOffset.UtcNow)
            },
            Total: 1,
            Page: 1,
            PageSize: 12);

        productClient
            .Setup(client => client.GetCategoryModels(categorySlug, null, null, null, null, It.IsAny<CancellationToken>()))
            .ReturnsAsync(new GetCategoryModels.Response(response));

        var service = new Products.ListingService(moduleClient.Object);
        var result = await service.GetCategoryProducts(categorySlug, CancellationToken.None);

        result.IsSuccess.ShouldBeTrue();
        result.Value.ShouldNotBeNull();

        var card = result.Value.Products.Single();
        card.IsPriced.ShouldBeFalse();
        card.FromPrice.ShouldBeNull();
    }
}