#125 displaying older versions of a page

GanjooRazor/Areas/Admin/Pages/PageHistory.cshtml

@@ -1,6 +1,7 @@
 @page
 @model GanjooRazor.Areas.Admin.Pages.PageHistoryModel
 @addTagHelper *, Microsoft.AspNetCore.Mvc.TagHelpers
+@using DNTPersianUtils.Core
 @{
     Layout = "_AdminLayout";
     ViewData["Title"] = "سابقهٔ ویرایش";
@@ -8,4 +9,30 @@
 
 <h1>@ViewData["Title"]</h1>
 
-<p>@Model.LastMessage</p>
+<p>@Model.LastMessage</p>
+
+@if (Model.OlderVersions != null)
+{
+    <table>
+        <tr>
+            <th>شناسه</th>
+            <th>تاریخ</th>
+            <th>یاداشت</th>
+        </tr>
+        @foreach (var olderVersion in Model.OlderVersions)
+        {
+            <tr id="tr-@olderVersion.Id">
+                <td>
+                    <a href="/Admin/ViewPageHistory?id=@olderVersion.Id">@olderVersion.Id</a>
+                </td>
+                <td>
+                    @olderVersion.RecordDate.ToFriendlyPersianDateTextify()
+                </td>
+                <td>
+                    @olderVersion.Note
+                </td>
+            </tr>
+        }
+    </table>
+
+}

GanjooRazor/Areas/Admin/Pages/PageHistory.cshtml.cs

@@ -1,4 +1,10 @@
+using GanjooRazor.Utils;
+using Microsoft.AspNetCore.Mvc;
 using Microsoft.AspNetCore.Mvc.RazorPages;
+using Newtonsoft.Json;
+using RMuseum.Models.Ganjoor.ViewModels;
+using System.Net.Http;
+using System.Threading.Tasks;
 
 namespace GanjooRazor.Areas.Admin.Pages
 {
@@ -8,8 +14,35 @@ namespace GanjooRazor.Areas.Admin.Pages
         /// last message
         /// </summary>
         public string LastMessage { get; set; }
-        public void OnGet()
+
+        public GanjoorPageSnapshotSummaryViewModel[] OlderVersions { get; set; }
+        public async Task<IActionResult> OnGetAsync()
         {
+            LastMessage = "";
+
+            using (HttpClient secureClient = new HttpClient())
+            {
+                if (await GanjoorSessionChecker.PrepareClient(secureClient, Request, Response))
+                {
+                    var response = await secureClient.GetAsync($"{APIRoot.Url}/api/ganjoor/page/oldversions/{Request.Query["id"]}");
+                    if (!response.IsSuccessStatusCode)
+                    {
+                        LastMessage = await response.Content.ReadAsStringAsync();
+                    }
+
+                    response.EnsureSuccessStatusCode();
+
+                    OlderVersions = JsonConvert.DeserializeObject<GanjoorPageSnapshotSummaryViewModel[]>(await response.Content.ReadAsStringAsync());
+
+                }
+                else
+                {
+                    LastMessage = "لطفا از گنجور خارج و مجددا به آن وارد شوید.";
+                }
+
+            }
+
+            return Page();
         }
     }
 }