Updated admin page to be more streamlined and added the beginning of the blogging features

OpenArchival.Blazor.AdminPages/AboutPageEditor.razor

@@ -0,0 +1,59 @@
+@page "/admin/aboutpageeditor"
+
+@layout AdminControlPanelLayout
+
+@using Microsoft.Extensions.Options
+@using MudExRichTextEditor
+@using MudBlazor
+@using OpenArchival.Blazor
+@using OpenArchival.Blazor.Config
+
+<MudText Typo="Typo.h6">About Page Editor</MudText>
+<MudDivider></MudDivider>
+<MudText Typo="Typo.body2">This is the content that will be displayed on the site's about page</MudText>
+<MudExRichTextEdit @ref="@_editor"
+                   ReadOnly="false"
+                   Height="444"
+                   Class="m-2 mt-4"
+                   Placeholder="Edit html"
+                   ValueHtmlBehavior="MudExRichTextEditor.Types.GetHtmlBehavior.SemanticHtml"
+                   @bind-Value="_editorContent"
+                   >
+                   @((MarkupString)_editorContent)
+                   </MudExRichTextEdit>
+
+<MudButton Variant="Variant.Filled" Color="Color.Primary" OnClick="OnSaveHomePage" Class="mt-4">Save</MudButton>
+
+@inject ISnackbar Snackbar;
+@inject IOptions<ApplicationOptions> AppOptions;
+@code {
+    private MudExRichTextEdit _editor = default!;
+
+    private bool _hasLoaded = false;
+
+    private string _editorContent = "";
+
+    protected override void OnInitialized()
+    {
+        string html = "";
+
+        if (File.Exists(AppOptions.Value.AboutPageContentLocation)) {
+                using var reader = new StreamReader(AppOptions.Value.AboutPageContentLocation);
+                html = reader.ReadToEnd();
+            } else
+            {
+                Snackbar.Add("Homepage file not found, will create one on save!", Severity.Warning);
+            }
+
+            _editorContent = html;
+    }
+
+    private async Task OnSaveHomePage(Microsoft.AspNetCore.Components.Web.MouseEventArgs args)
+    {
+        using var writer = new StreamWriter(AppOptions.Value.AboutPageContentLocation);
+
+        await writer.WriteLineAsync(_editorContent);
+
+        Snackbar.Add($"Wrote homepage to {AppOptions.Value.AboutPageContentLocation}!", Severity.Success);
+    }
+}