books/backend/Books.Api/Commands/Products/ProductCommandHandlers.cs

using Books.Api.Domain.Products;
using EventFlow.Commands;

namespace Books.Api.Commands.Products;

public class CreateProductCommandHandler : CommandHandler<ProductAggregate, ProductId, CreateProductCommand>
{
    public override Task ExecuteAsync(
        ProductAggregate aggregate,
        CreateProductCommand command,
        CancellationToken cancellationToken)
    {
        aggregate.Create(
            command.CompanyId,
            command.ProductNumber,
            command.Name,
            command.Description,
            command.UnitPrice,
            command.VatCode,
            command.Unit,
            command.DefaultAccountId,
            command.Ean,
            command.Manufacturer);

        return Task.CompletedTask;
    }
}

public class UpdateProductCommandHandler : CommandHandler<ProductAggregate, ProductId, UpdateProductCommand>
{
    public override Task ExecuteAsync(
        ProductAggregate aggregate,
        UpdateProductCommand command,
        CancellationToken cancellationToken)
    {
        aggregate.Update(
            command.ProductNumber,
            command.Name,
            command.Description,
            command.UnitPrice,
            command.VatCode,
            command.Unit,
            command.DefaultAccountId,
            command.Ean,
            command.Manufacturer);

        return Task.CompletedTask;
    }
}

public class DeactivateProductCommandHandler : CommandHandler<ProductAggregate, ProductId, DeactivateProductCommand>
{
    public override Task ExecuteAsync(
        ProductAggregate aggregate,
        DeactivateProductCommand command,
        CancellationToken cancellationToken)
    {
        aggregate.Deactivate();
        return Task.CompletedTask;
    }
}

public class ReactivateProductCommandHandler : CommandHandler<ProductAggregate, ProductId, ReactivateProductCommand>
{
    public override Task ExecuteAsync(
        ProductAggregate aggregate,
        ReactivateProductCommand command,
        CancellationToken cancellationToken)
    {
        aggregate.Reactivate();
        return Task.CompletedTask;
    }
}