From 1fc6b5cc26d77b80700f74b20daafed6b70f0f45 Mon Sep 17 00:00:00 2001
From: Demis Bellot <demis.bellot@gmail.com>
Date: Wed, 29 May 2024 15:52:14 +0800
Subject: [PATCH] Add leaderboard info

---
 MyApp.ServiceInterface/LeaderboardServices.cs | 16 +++++++++++++++-
 MyApp/Components/Pages/Leaderboard.razor      | 18 +++++++++++++++++-
 MyApp/wwwroot/css/app.css                     |  6 ++++++
 3 files changed, 38 insertions(+), 2 deletions(-)

diff --git a/MyApp.ServiceInterface/LeaderboardServices.cs b/MyApp.ServiceInterface/LeaderboardServices.cs
index b11ba06..374cf66 100644
--- a/MyApp.ServiceInterface/LeaderboardServices.cs
+++ b/MyApp.ServiceInterface/LeaderboardServices.cs
@@ -23,7 +23,7 @@ public class LeaderboardServices : Service
     public async Task<object> Any(CalculateLeaderBoard request)
     {
         var statTotals = await Db.SelectAsync<StatTotals>();
-        var modelsToExclude = request.ModelsToExclude?.Split(",").ToList() ?? new List<string>();
+        var modelsToExclude = request.ModelsToExclude?.Split(",").ToList() ?? [];
         // filter to answers only
         var answers = statTotals.Where(x => FilterSpecificModels(x, modelsToExclude)).ToList();
         // Sum up votes by model, first group by UserName
@@ -52,6 +52,14 @@ public async Task<object> Any(CalculateLeaderBoard request)
         var modelsToExcludeSlug = request.ModelsToExclude?.GenerateSlug();
         var combinedSuffix = modelsToExcludeSlug.IsNullOrEmpty() ? "" : $"-{modelsToExcludeSlug}";
         await File.WriteAllTextAsync($"App_Data/leaderboard{combinedSuffix}.json", json);
+
+        var count = Db.Count<StatTotals>(x => x.Id != x.PostId.ToString());
+        var info = new LeaderboardInfo
+        {
+            AnswerCount = count,
+            GeneratedDate = DateTime.UtcNow,
+        };
+        await File.WriteAllTextAsync("App_Data/leaderboard-info.json", info.ToJson());
         
         return leaderBoard;
     }
@@ -318,6 +326,12 @@ public record LeaderboardStat
     public double Value { get; set; }
 }
 
+public class LeaderboardInfo
+{
+    public long AnswerCount { get; set; }
+    public DateTime GeneratedDate { get; set; }
+}
+
 public class CalculateLeaderBoard : IReturn<CalculateLeaderboardResponse>, IGet
 {
     public string? ModelsToExclude { get; set; }
diff --git a/MyApp/Components/Pages/Leaderboard.razor b/MyApp/Components/Pages/Leaderboard.razor
index 43bd8ef..53dd705 100644
--- a/MyApp/Components/Pages/Leaderboard.razor
+++ b/MyApp/Components/Pages/Leaderboard.razor
@@ -6,6 +6,20 @@
 
 <PageTitle>Leaderboard</PageTitle>
 
+@if (LeaderboardInfo != null)
+{
+    <div class="absolute right-4 -mt-6">
+        <p class="text-sm text-gray-500">
+            <span>Leaderboard</span>
+            <a class="text-indigo-600 dark:text-indigo-300" href="/posts/leaderboard-intro">generated</a>
+            <span>
+                from <b>@LeaderboardInfo.AnswerCount.ToString("N0")</b> answers on 
+                <b>@LeaderboardInfo.GeneratedDate.ToString("MMM dd, yyyy")</b>
+            </span>
+        </p>
+    </div>
+}
+    
 <div class="mt-8 mb-20 mx-auto max-w-screen-lg">
 
     @if (TotalVotes.Count > 0 && WinRates.Count > 0)
@@ -70,6 +84,7 @@
     [CascadingParameter]
     private HttpContext HttpContext { get; set; } = default!;
 
+    LeaderboardInfo? LeaderboardInfo;
     CalculateLeaderboardResponse? allData;
     CalculateLeaderboardResponse? top1kData;
 
@@ -84,7 +99,7 @@
     {
         // Only generate if missing, otherwise background task will update it.
         var gateway = GatewayFactory.GetServiceGateway(HttpContext.ToRequest());
-        if (!File.Exists("App_Data/leaderboard.json"))
+        if (!File.Exists("App_Data/leaderboard.json") || !File.Exists("App_Data/leaderboard-info.json"))
         {
             await gateway.ApiAsync(new CalculateLeaderBoard());
         }
@@ -93,6 +108,7 @@
             await gateway.ApiAsync(new CalculateTop1KLeaderboard());
         }
 
+        LeaderboardInfo = (await File.ReadAllTextAsync("App_Data/leaderboard-info.json")).FromJson<LeaderboardInfo>();
         var allVotesData = await File.ReadAllTextAsync("App_Data/leaderboard.json");
         allData = allVotesData.FromJson<CalculateLeaderboardResponse>();
 
diff --git a/MyApp/wwwroot/css/app.css b/MyApp/wwwroot/css/app.css
index 9158721..96a32d7 100644
--- a/MyApp/wwwroot/css/app.css
+++ b/MyApp/wwwroot/css/app.css
@@ -3923,6 +3923,12 @@ select{
   box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
 }
 
+.hover\:shadow-lg:hover {
+  --tw-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
+  --tw-shadow-colored: 0 10px 15px -3px var(--tw-shadow-color), 0 4px 6px -4px var(--tw-shadow-color);
+  box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
+}
+
 .hover\:ring-2:hover {
   --tw-ring-offset-shadow: var(--tw-ring-inset) 0 0 0 var(--tw-ring-offset-width) var(--tw-ring-offset-color);
   --tw-ring-shadow: var(--tw-ring-inset) 0 0 0 calc(2px + var(--tw-ring-offset-width)) var(--tw-ring-color);