divan/DiwanRazor/Areas/Admin/Pages/PoetDel.cshtml.cs

using System.Collections.Generic;
using System.Net.Http;
using System.Threading.Tasks;
using DiwanRazor.Utils;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.RazorPages;
using Microsoft.Extensions.Caching.Memory;
using Newtonsoft.Json;
using RMuseum.Models.Diwan.ViewModels;

namespace DiwanRazor.Areas.Admin.Pages
{
    public class PoetDelModel : PageModel
    {
        /// <summary>
        /// HttpClient instance
        /// </summary>
        private readonly HttpClient _httpClient;

        /// <summary>
        /// memory cache
        /// </summary>
        private readonly IMemoryCache _memoryCache;

        /// <summary>
        /// constructor
        /// </summary>
        /// <param name="httpClient"></param>
        /// <param name="memoryCache"></param>
        public PoetDelModel(HttpClient httpClient, IMemoryCache memoryCache)
        {
            _httpClient = httpClient;
            _memoryCache = memoryCache;
        }

        /// <summary>
        /// last result
        /// </summary>
        public string LastResult { get; set; }


        public DiwanPoetViewModel Poet { get; set; }

        private async Task<bool> PreparePoet()
        {
            var response = await _httpClient.GetAsync($"{APIRoot.Url}/api/diwan/poet/{Request.Query["id"]}");

            if (!response.IsSuccessStatusCode)
            {
                LastResult = JsonConvert.DeserializeObject<string>(await response.Content.ReadAsStringAsync());
                return false;
            }

            var poet = JsonConvert.DeserializeObject<DiwanPoetCompleteViewModel>(await response.Content.ReadAsStringAsync());


            Poet = poet.Poet;
            return true;
        }

        public async Task<IActionResult> OnGetAsync()
        {
            if (string.IsNullOrEmpty(Request.Cookies["Token"]))
                return Redirect("/");

            LastResult = "";
            await PreparePoet();

            return Page();
        }

        public async Task<IActionResult> OnPostAsync()
        {
            LastResult = "";
            using (HttpClient secureClient = new HttpClient(new DiwanReloginHandler(Request, Response)))
            {
                await DiwanSessionChecker.PrepareClient(secureClient, Request, Response);

                HttpResponseMessage response = await secureClient.DeleteAsync($"{APIRoot.Url}/api/diwan/poet/{Request.Query["id"]}");
                if (!response.IsSuccessStatusCode)
                {
                    LastResult = JsonConvert.DeserializeObject<string>(await response.Content.ReadAsStringAsync());
                    return Page();
                }

                var cacheKey1 = $"/api/diwan/poets";
                if (_memoryCache.TryGetValue(cacheKey1, out List<DiwanPoetViewModel> poets))
                {
                    _memoryCache.Remove(cacheKey1);
                }

                var cacheKey2 = $"/api/diwan/poet/{Request.Query["id"]}";
                if (_memoryCache.TryGetValue(cacheKey2, out DiwanPoetCompleteViewModel poet))
                {
                    _memoryCache.Remove(cacheKey2);
                }

                LastResult = "عملیات حذف سخنور شروع شد.";

                return Page();

            }
        }


    }
}