props/Props/Services/Modules/IMetricsManager.cs

using System.Collections.Generic;
using System.Threading.Tasks;
using Props.Models.Search;
using Props.Shop.Framework;

namespace Props.Services.Modules
{
    public interface IMetricsManager
    {
        public IEnumerable<ProductListingInfo> RetrieveTopListings(int max = 10);

        public IEnumerable<string> RetrieveCommonKeywords(int max = 50);

        public void RegisterSearchQuery(string query);

        public void RegisterProductListing(ProductListing productListing, string shopName);
    }
}