add refresh data button

frontend.go

@@ -95,6 +95,15 @@ func initFrontend(config *Config, db *DBModel) FrontendApp {
 			}
 
 			if request.Method == "POST" {
+
+				refresh := request.PostFormValue("refresh")
+				if refresh == "true" {
+					go runScheduledTask(db, config)
+
+					http.Redirect(responseWriter, request, "/", http.StatusFound)
+					return
+				}
+
 				toDelete := []MatrixRoom{}
 				for i := 0; i < 20; i++ {
 					roomId := request.PostFormValue(fmt.Sprintf("id_%d", i))
@@ -180,7 +189,8 @@ func initFrontend(config *Config, db *DBModel) FrontendApp {
 				DBTableSizes  template.JS
 				BigRooms      template.JS
 				BigRoomsSlice []MatrixRoom
-			}{template.JS(diskUsage), template.JS(dbTableSizes), template.JS(bigRoomsBytes), biggestRooms}
+				Updating      bool
+			}{template.JS(diskUsage), template.JS(dbTableSizes), template.JS(bigRoomsBytes), biggestRooms, isRunningScheduledTask}
 
 			app.buildPageFromTemplate(responseWriter, request, session, "panel.html", panelTemplateData)
 		} else {

frontend/deleting.gotemplate.html

@@ -4,6 +4,7 @@
   <p>
     <em>This page will automatically refresh every 10 seconds while the deletion process is happening...</em>
   </p>
+  
   <script>
     setTimeout(function(){ window.location.reload(); }, 1000 * 10);
   </script>

frontend/panel.gotemplate.html

@@ -1,3 +1,24 @@
+<div class="vertical align-center">
+  {{ if .Updating }}
+  <p>
+    <span class="bold-red">
+      NOTE: The data on this page is currently being updated... This can take a few minutes. Stand by.
+    </span>
+  </p>
+  {{ else }}
+  <p>
+    <span class="bold-red">
+      NOTE: The data on this page is generated by a scheduled task that runs every 24 hours.
+    </span>
+  </p>
+
+
+  <form action="/" method="POST" class="box vertical">
+    <input type="hidden" name="refresh" value="true"></input>
+    <input type="submit" value="Re-run data gathering task now"></input>
+  </form>
+  {{ end }}
+</div>
 
 <div class="horizontal justify-center wrap">
 

frontend/static/app.css

@@ -144,6 +144,11 @@ header .session-status {
   padding: 5px;
 }
 
+.bold-red {
+  font-style: italic;
+  font-weight: bold;
+  color: #a5048a;
+}
 
 code {
   padding: 2px 4px;