added stats

Author: Lyra1337

Services/StatisticService.cs

@@ -0,0 +1,27 @@
+using System;
+using System.Linq;
+using System.Threading.Tasks;
+using Lyralabs.TempMailServer.Data.Context;
+using Microsoft.EntityFrameworkCore;
+
+namespace Lyralabs.TempMailServer;
+
+public class StatisticService(IDbContextFactory<DatabaseContext> databaseContextFactory)
+{
+    public async Task<(int TotalMails, int TotalMailboxes, int LargestMailbox, int YesterdaysMailCount)> GetStatsAsync()
+    {
+        using var context = await databaseContextFactory.CreateDbContextAsync();
+
+        var totalMails = await context.Mails.CountAsync();
+        var totalMailboxes = await context.Mailboxes.CountAsync();
+        var largestMailbox = await context.Mailboxes
+            .Select(m => m.Mails.Count)
+            .MaxAsync();
+
+        var yesterdaysMailCount = await context.Mails
+            .Where(m => m.ReceivedDate.Date == DateTime.UtcNow.AddDays(-1).Date)
+            .CountAsync();
+
+        return (totalMails, totalMailboxes, largestMailbox, yesterdaysMailCount);
+    }
+}

Web/Pages/Index.razor

@@ -1,3 +1,10 @@
-@page "/"
+@page "/"
 
-<TitleControl Title="Home" />
+<TitleControl Title="Stats" />
+
+<div>
+    <div>Total Mailboxes: <strong>@this.TotalMailboxes</strong></div>
+    <div>Total Messages: <strong>@this.TotalMails</strong></div>
+    <div>Largest Mailbox contains <strong>@this.LargestMailbox</strong> Mails</div>
+    <div>Mails received Yesterday: <strong>@this.YesterdaysMailCount</strong></div>
+</div>

Web/Pages/Index.razor.cs

@@ -0,0 +1,19 @@
+namespace Lyralabs.TempMailServer.Web.Pages;
+
+partial class Index
+{
+    [Inject]
+    public required StatisticService StatisticService { get; set; }
+
+    private int LargestMailbox { get; set; }
+    private int TotalMailboxes { get; set; }
+    private int TotalMails { get; set; }
+    private int YesterdaysMailCount { get; set; }
+
+    protected override async Task OnInitializedAsync()
+    {
+        await base.OnInitializedAsync();
+
+        (this.TotalMails, this.TotalMailboxes, this.LargestMailbox, this.YesterdaysMailCount) = await this.StatisticService.GetStatsAsync();
+    }
+}

Web/Program.cs

@@ -62,6 +62,7 @@ private static void Main(string[] args)
             builder.Services.AddTransient<MailRepository>();
             builder.Services.AddTransient<TempMessageStore>();
             builder.Services.AddTransient<MailboxFilter>();
+            builder.Services.AddTransient<StatisticService>();
 
             builder.Services.AddDbContextFactory<DatabaseContext>(
                 options => options.UseSqlite(builder.Configuration.GetConnectionString(nameof(DatabaseContext)))