ApplianceRepair/Components/Pages/Home.Razor.cs

using Microsoft.Extensions.Caching.Memory;

namespace ApplianceRepair.Components.Pages
{
    public partial class Home(IMemoryCache cache, HomePageReader homePageReader, ContentCardReader contentCardReader)
    {
        private HomePageModel? Model;

        protected override async Task OnInitializedAsync()
        {
            if (!cache.TryGetValue(nameof(HomePageModel), out Model))
            {
                Model = Defaults.DefaultHomePageContent;

                var homePageRecord = await homePageReader.ReadLatestRecord();
                if (homePageRecord != null)
                {
                    Model = new HomePageModel(homePageRecord);

                    var serviceCardRecords =  await contentCardReader.ReadAllByPageAndGroup(nameof(Home), "Services");
                    if (serviceCardRecords != null)
                    {
                        foreach (var record in serviceCardRecords)
                        {
                            Model.ServicesCards!.Add(new ContentCardModel(record));
                        }
                    }

                    var trustCardRecords = await contentCardReader.ReadAllByPageAndGroup(nameof(Home), "Trust");
                    if (trustCardRecords != null)
                    {
                        foreach (var record in trustCardRecords)
                        {
                            Model.TrustCards!.Add(new ContentCardModel(record));
                        }
                    }
                }

                var cacheOptions = new MemoryCacheEntryOptions()
                    .SetAbsoluteExpiration(TimeSpan.FromHours(24)) 
                    .SetSlidingExpiration(TimeSpan.FromHours(2));

                cache.Set(nameof(HomePageModel), Model, cacheOptions);
            }
        }

    }
}