[frontend/pages] Add user debug page

Iceshrimp.Frontend/Components/JsonViewer.razor

@@ -0,0 +1,62 @@
+@using System.Text.Json
+
+<div class="json">
+    @if (Element.ValueKind == JsonValueKind.Array)
+    {
+        @if (Element.GetArrayLength() == 0)
+        {
+            <span class="keyword">Empty</span>
+        }
+        else
+        {
+            var i = 0;
+            @foreach (var item in Element.EnumerateArray())
+            {
+                <dt>@i:</dt>
+                @RenderElement(item)
+
+                i++;
+            }
+        }
+    }
+    else if (Element.ValueKind == JsonValueKind.Object)
+    {
+        @foreach (var prop in Element.EnumerateObject())
+        {
+            @switch (prop.Value.ValueKind)
+            {
+                case JsonValueKind.Array:
+                    <dt>@prop.Name []</dt>
+                    break;
+                case JsonValueKind.Object:
+                    <dt>@prop.Name {}</dt>
+                    break;
+                default:
+                    <dt>@prop.Name:</dt>
+                    break;
+            }
+            @RenderElement(prop.Value)
+        }
+    }
+</div>
+
+@code {
+    [Parameter, EditorRequired] public required JsonElement Element { get; set; }
+
+    RenderFragment RenderElement(JsonElement element)
+    {
+        return element.ValueKind switch
+        {
+            JsonValueKind.True or JsonValueKind.False or JsonValueKind.Null or JsonValueKind.Undefined => (@<dd>
+                    <span class="keyword">@element.ValueKind.ToString()</span></dd>),
+            JsonValueKind.Array or JsonValueKind.Object => (@<dd>
+                    <JsonViewer Element="element"/>
+                </dd>),
+            JsonValueKind.Number => (@<dd><span class="number">@element.GetDouble()</span></dd>),
+            JsonValueKind.String => (element.GetString() is { } s && Uri.TryCreate(s, UriKind.Absolute, out var _)
+                ? @<dd><a href="@s" target="_blank">@s</a></dd>
+                : @<dd><span class="string">"@element.GetString()?.ReplaceLineEndings("\\n")"</span></dd>),
+            _ => throw new ArgumentOutOfRangeException()
+        };
+    }
+}

Iceshrimp.Frontend/Components/JsonViewer.razor.css

@@ -0,0 +1,16 @@
+.json {
+    dt {
+        color: #66C3CC;
+        font-weight: bold;
+    }
+    .keyword {
+        color: #6C95EB;
+        font-family: monospace;
+    }
+    .number {
+        color: #ED94C0;
+    }
+    .string {
+        color: #C9A26D;
+    }
+}

Iceshrimp.Frontend/Pages/About.razor

@@ -0,0 +1,72 @@
+@page "/notes/{NoteId}/about"
+@page "/{User}/about"
+@using System.Text.Json
+@using System.Text.RegularExpressions
+@using Iceshrimp.Assets.PhosphorIcons
+@using Iceshrimp.Frontend.Components
+@using Iceshrimp.Frontend.Core.Miscellaneous
+@using Iceshrimp.Frontend.Core.Services
+@using Iceshrimp.Frontend.Localization
+@using Microsoft.AspNetCore.Authorization
+@using Microsoft.AspNetCore.Components.Sections
+@using Microsoft.Extensions.Localization
+@attribute [Authorize]
+@inject ApiService                     Api;
+@inject IStringLocalizer<Localization> Loc;
+
+<HeadTitle Text="@Loc["About"]"/>
+
+<SectionContent SectionName="top-bar">
+    <Icon Name="Icons.Info"></Icon>
+    @Loc["About"]
+</SectionContent>
+
+@if (State == State.Loaded)
+{
+    @foreach (var document in Documents)
+    {
+        <details>
+            <summary>@document.Key</summary>
+            <JsonViewer Element="document.Value.RootElement"/>
+        </details>
+    }
+}
+
+@code {
+    [Parameter] public string?                          NoteId    { get; set; }
+    [Parameter] public string?                          User      { get; set; }
+    private            State                            State     { get; set; }
+    private            Dictionary<string, JsonDocument> Documents { get; set; } = [];
+
+    protected override async Task OnInitializedAsync()
+    {
+        if (NoteId != null)
+        {
+            
+        }
+        else if (User != null)
+        {
+            var pattern      = "^@([^@]+)@?(.+)?$";
+            var matches      = Regex.Match(User, pattern);
+            var userResponse = await Api.Users.LookupUserAsync(matches.Groups[1].Value, matches.Groups[2].Value);
+
+            if (userResponse is null)
+            {
+                State = State.NotFound;
+            }
+            else
+            {
+                var profileResponse = await Api.Users.GetUserProfileAsync(userResponse.Id);
+
+                Documents.Add(Loc["User response"], JsonSerializer.SerializeToDocument(userResponse));
+                Documents.Add(Loc["Profile response"], JsonSerializer.SerializeToDocument(profileResponse));
+
+                State = State.Loaded;
+            }
+        }
+        else
+        {
+            State = State.NotFound;
+        }
+    }
+}

Iceshrimp.Frontend/Pages/About.razor.css

@@ -0,0 +1,14 @@
+details {
+    padding: 1rem 1rem;
+    width: 100%;
+}
+
+summary {
+    padding: 0.5rem 1rem;
+    background-color: var(--highlight-color);
+    cursor: pointer;
+}
+
+summary:hover {
+    background-color: var(--hover-color);
+}