EnvelopeGenerator/EnvelopeGenerator.Application/Extensions/CacheExtensions.cs

using Microsoft.Extensions.Caching.Distributed;
using Microsoft.Extensions.Options;
using Newtonsoft.Json.Linq;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace EnvelopeGenerator.Application.Extensions
{
    public static class CacheExtensions
    {
        public static Task SetLongAsync(this IDistributedCache cache, string key, long value, DistributedCacheEntryOptions? options = null)
            => options is null
                ? cache.SetAsync(key, BitConverter.GetBytes(value))
                : cache.SetAsync(key, BitConverter.GetBytes(value), options: options);

        public static async Task<long?> GetLongAsync(this IDistributedCache cache, string key)
        {
            var value = await cache.GetAsync(key);
            return value is null ? null : BitConverter.ToInt64(value, 0);
        }

        public static Task SetDateTimeAsync(this IDistributedCache cache, string key, DateTime value, DistributedCacheEntryOptions? options = null)
            => cache.SetLongAsync(key: key, value: value.Ticks, options: options);

        public static async Task<DateTime?> GetDateTimeAsync(this IDistributedCache cache, string key)
        {
            var value = await cache.GetAsync(key);
            return value is null ? null : new(BitConverter.ToInt64(value, 0));
        }

        public static Task SetTimeSpanAsync(this IDistributedCache cache, string key, TimeSpan value, DistributedCacheEntryOptions? options = null)
            => cache.SetLongAsync(key: key, value: value.Ticks, options: options);

        public static async Task<TimeSpan?> GetTimeSpanAsync(this IDistributedCache cache, string key)
        {
            var value = await cache.GetAsync(key);
            return value is null ? null : new(BitConverter.ToInt64(value, 0));
        }
    }
}