From 314ef707c2f66781a8048fe68ab0b98099cc4610 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timo=20K=C3=B6ssler?= <info@timokoessler.de>
Date: Fri, 4 Oct 2024 18:21:51 +0200
Subject: [PATCH] Reduce requests

---
 Guard.Core/Models/AppSettings.cs       |  1 +
 Guard.WPF/Core/Installation/Updater.cs | 15 ++++++++++++++-
 Guard.WPF/Core/Stats.cs                | 20 ++++++++++++++++++++
 3 files changed, 35 insertions(+), 1 deletion(-)

diff --git a/Guard.Core/Models/AppSettings.cs b/Guard.Core/Models/AppSettings.cs
index f7c1812..a86e40e 100644
--- a/Guard.Core/Models/AppSettings.cs
+++ b/Guard.Core/Models/AppSettings.cs
@@ -48,5 +48,6 @@ public class AppSettings
         public bool MinimizeToTray { get; set; } = false;
         public LockTimeSetting LockTime { get; set; } = LockTimeSetting.TenMinutes;
         public Version LastUsedAppVersion { get; set; } = new(0, 0);
+        public DateTime LastAppStartEvent { get; set; } = DateTime.MinValue;
     }
 }
diff --git a/Guard.WPF/Core/Installation/Updater.cs b/Guard.WPF/Core/Installation/Updater.cs
index 8ff2866..10dbc82 100644
--- a/Guard.WPF/Core/Installation/Updater.cs
+++ b/Guard.WPF/Core/Installation/Updater.cs
@@ -1,6 +1,5 @@
 using System.Diagnostics;
 using System.IO;
-using System.Net.Http;
 using System.Net.Http.Json;
 using System.Text.Json;
 using System.Windows;
@@ -15,6 +14,9 @@ public class Updater
         private static readonly JsonSerializerOptions jsonSerializerOptions =
             new() { PropertyNamingPolicy = JsonNamingPolicy.CamelCase };
 
+        private static DateTime lastUpdateCheck = DateTime.MinValue;
+        private static UpdateInfo? lastUpdateInfo = null;
+
         public class UpdateInfoDownloadUrls
         {
             public required string Installer { get; set; }
@@ -36,6 +38,12 @@ public class UpdateInfo
             string currentVersionString = currentVersion?.ToString() ?? "";
             bool isPortable = InstallationContext.IsPortable();
 
+            // Cache last update check for 1 hour
+            if (lastUpdateCheck.AddHours(1) > DateTime.Now)
+            {
+                return lastUpdateInfo;
+            }
+
             try
             {
                 var httpClient = HTTP.GetHttpClient();
@@ -45,15 +53,20 @@ public class UpdateInfo
                     await httpClient.GetFromJsonAsync<UpdateInfo>(url, jsonSerializerOptions)
                     ?? throw new Exception("Failed to get update info (is null)");
 
+                lastUpdateCheck = DateTime.Now;
+
                 Version newVersion = new(updateInfo.Version);
                 if (newVersion.CompareTo(currentVersion) <= 0)
                 {
+                    lastUpdateInfo = null;
                     return null;
                 }
+                lastUpdateInfo = updateInfo;
                 return updateInfo;
             }
             catch (Exception e)
             {
+                lastUpdateInfo = null;
                 Log.Logger.Error("Error while checking for updates: {0}", e.Message);
                 return null;
             }
diff --git a/Guard.WPF/Core/Stats.cs b/Guard.WPF/Core/Stats.cs
index 921d365..57c2f92 100644
--- a/Guard.WPF/Core/Stats.cs
+++ b/Guard.WPF/Core/Stats.cs
@@ -4,6 +4,7 @@
 using System.Text.Json;
 using Guard.Core;
 using Guard.Core.Security;
+using Guard.Core.Storage;
 using Guard.WPF.Core.Installation;
 
 namespace Guard.WPF.Core
@@ -39,6 +40,19 @@ internal static async void TrackEvent(EventType type)
                 return;
             }
 
+            if (type == EventType.AppStarted)
+            {
+                if (
+                    DateTime.Compare(
+                        SettingsManager.Settings.LastAppStartEvent.Date,
+                        DateTime.Now.Date
+                    ) == 0
+                )
+                {
+                    return;
+                }
+            }
+
             try
             {
                 var content = new
@@ -63,6 +77,12 @@ await httpClient.PostAsJsonAsync(statsApiUrl, content, jsonSerializerOptions)
                         $"Failed to get update info (status code: {response.StatusCode})"
                     );
                 }
+
+                if (type == EventType.AppStarted)
+                {
+                    SettingsManager.Settings.LastAppStartEvent = DateTime.Now;
+                    _ = SettingsManager.Save();
+                }
             }
             catch
             {