From 5a0358718cd9b76b71da0c885c853f39e7e09b60 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=BC=98=E9=9F=AC=20=E5=BC=A0?= <hongtao_zhang@outlook.com>
Date: Mon, 28 Dec 2020 23:06:47 +0800
Subject: [PATCH] Update PluginManifest if last update time is 12 hours ago

---
 .../Flow.Launcher.Plugin.PluginsManager/Main.cs  | 16 +++++++++++++++-
 .../Models/PluginsManifest.cs                    | 10 +++-------
 .../PluginsManager.cs                            |  8 +++++++-
 3 files changed, 25 insertions(+), 9 deletions(-)

diff --git a/Plugins/Flow.Launcher.Plugin.PluginsManager/Main.cs b/Plugins/Flow.Launcher.Plugin.PluginsManager/Main.cs
index 6cf9e1608..9aa024fc8 100644
--- a/Plugins/Flow.Launcher.Plugin.PluginsManager/Main.cs
+++ b/Plugins/Flow.Launcher.Plugin.PluginsManager/Main.cs
@@ -6,6 +6,8 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Windows.Controls;
 using Flow.Launcher.Infrastructure;
+using System;
+using System.Threading.Tasks;
 
 namespace Flow.Launcher.Plugin.PluginsManager
 {
@@ -21,6 +23,8 @@ namespace Flow.Launcher.Plugin.PluginsManager
 
         internal PluginsManager pluginManager;
 
+        internal DateTime _lastUpdateTime;
+
         public Control CreateSettingPanel()
         {
             return new PluginsManagerSettings(viewModel);
@@ -33,6 +37,7 @@ namespace Flow.Launcher.Plugin.PluginsManager
             Settings = viewModel.Settings;
             contextMenu = new ContextMenu(Context, Settings);
             pluginManager = new PluginsManager(Context, Settings);
+            _lastUpdateTime = DateTime.Now;
         }
 
         public List<Result> LoadContextMenus(Result selectedResult)
@@ -43,10 +48,19 @@ namespace Flow.Launcher.Plugin.PluginsManager
         public List<Result> Query(Query query)
         {
             var search = query.Search.ToLower();
-            
+
             if (string.IsNullOrWhiteSpace(search))
                 return Settings.HotKeys;
 
+            if ((DateTime.Now - _lastUpdateTime).TotalSeconds > 43200) // 12 hours
+            {
+                Task.Run(async () =>
+                {
+                    await pluginManager.UpdateManifest();
+                    _lastUpdateTime = DateTime.Now;
+                });
+            }
+
             return search switch
             {
                 var s when s.StartsWith(Settings.HotKeyInstall) => pluginManager.RequestInstallOrUpdate(s),
diff --git a/Plugins/Flow.Launcher.Plugin.PluginsManager/Models/PluginsManifest.cs b/Plugins/Flow.Launcher.Plugin.PluginsManager/Models/PluginsManifest.cs
index 290221710..1c31432b2 100644
--- a/Plugins/Flow.Launcher.Plugin.PluginsManager/Models/PluginsManifest.cs
+++ b/Plugins/Flow.Launcher.Plugin.PluginsManager/Models/PluginsManifest.cs
@@ -12,19 +12,15 @@ namespace Flow.Launcher.Plugin.PluginsManager.Models
         internal List<UserPlugin> UserPlugins { get; private set; }
         internal PluginsManifest()
         {
-            DownloadManifest();
+            Task.Run(() => DownloadManifest()).Wait();
         }
 
-        private void DownloadManifest()
+        internal async Task DownloadManifest()
         {
             var json = string.Empty;
             try
             {
-                var t = Task.Run(
-                            async () => 
-                                json = await Http.Get("https://raw.githubusercontent.com/Flow-Launcher/Flow.Launcher.PluginsManifest/main/plugins.json"));
-
-                t.Wait();
+                json = await Http.Get("https://raw.githubusercontent.com/Flow-Launcher/Flow.Launcher.PluginsManifest/main/plugins.json");
 
                 UserPlugins = JsonConvert.DeserializeObject<List<UserPlugin>>(json);
             }
diff --git a/Plugins/Flow.Launcher.Plugin.PluginsManager/PluginsManager.cs b/Plugins/Flow.Launcher.Plugin.PluginsManager/PluginsManager.cs
index bd998514a..c6f127387 100644
--- a/Plugins/Flow.Launcher.Plugin.PluginsManager/PluginsManager.cs
+++ b/Plugins/Flow.Launcher.Plugin.PluginsManager/PluginsManager.cs
@@ -7,13 +7,14 @@ using System;
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
+using System.Threading.Tasks;
 using System.Windows;
 
 namespace Flow.Launcher.Plugin.PluginsManager
 {
     internal class PluginsManager
     {
-        private readonly PluginsManifest pluginsManifest;
+        private PluginsManifest pluginsManifest;
 
         private PluginInitContext Context { get; set; }
 
@@ -44,6 +45,11 @@ namespace Flow.Launcher.Plugin.PluginsManager
             Settings = settings;
         }
 
+        internal async Task UpdateManifest()
+        {
+            await pluginsManifest.DownloadManifest();
+        }
+
         internal void InstallOrUpdate(UserPlugin plugin)
         {
             if (PluginExists(plugin.ID))