RhSolutions-AddIn/RhSolutions.AddIn/Services/DatabaseClient.cs

using Microsoft.Extensions.Caching.Memory;
using Newtonsoft.Json;
using System.Net;
using System.Net.Http;
using System.Threading.Tasks;

namespace RhSolutions.Services;

public class DatabaseClient : IDatabaseClient
{
    private readonly HttpClient _httpClient;
    private readonly IMemoryCache _memoryCache;
    public HttpStatusCode StatusCode { get; private set; }

    public DatabaseClient(HttpClient httpClient, IMemoryCache memoryCache)
    {
        _httpClient = httpClient;
        _memoryCache = memoryCache;
    }

    public async Task<IEnumerable<Product>> GetProducts(string line)
    {
        string request;

        if (ProductSku.TryParse(line, out var skus))
        {
            request = @"https://rh.cebotari.ru/api/products/" + skus.FirstOrDefault().ToString();
        }

        else
        {
            request = @"https://rh.cebotari.ru/api/search?query=" + line;
        }

        if (!_memoryCache.TryGetValue(line, out IEnumerable<Product> products))
        {
            var response = await _httpClient.GetAsync(request);

            try
            {
                response.EnsureSuccessStatusCode();
                string json = await response.Content.ReadAsStringAsync();
                products = JsonConvert.DeserializeObject<IEnumerable<Product>>(json) ?? Enumerable.Empty<Product>();
            }
            catch
            {
                StatusCode = response.StatusCode;
            }

            var cacheEntryOptions = new MemoryCacheEntryOptions()
                .SetSlidingExpiration(TimeSpan.FromHours(1));
            _memoryCache.Set(line, products, cacheEntryOptions);
        }

        return products;
    }
}