Rename functions for clarity

Signed-off-by: DL6ER <dl6er@dl6er.de>

scripts/pi-hole/js/settings-api.js

@@ -61,7 +61,7 @@ $(function () {
       },
     ],
     drawCallback: function () {
-      $('button[id^="deleteSession_"]').on("click", deleteSession);
+      $('button[id^="deleteSession_"]').on("click", deleteThisSession);
 
       // Hide buttons if all messages were deleted
       var hasRows = this.api().rows({ filter: "applied" }).data().length > 0;
@@ -149,7 +149,7 @@ $(function () {
             ids.push(parseInt($(this).attr("data-id"), 10));
           });
           // Delete all selected rows at once
-          delSessions(ids);
+          deleteMultipleSessions(ids);
         },
       },
     ],
@@ -187,13 +187,18 @@ $(function () {
   });
 });
 
-function deleteSession() {
-  // Passes the button data-del-id attribute as ID
-  var ids = [$(this).attr("data-del-id")];
-  delSessions(ids);
+function deleteThisSession() {
+  // This function is called when a red trash button is clicked
+  // We get the ID of the current item from the data-del-id attribute
+  const thisID = parseInt(this.attr("data-del-id"), 10);
+  deleted = 0;
+  deleteOneSession(thisID, 1, false);
 }
 
-function delSessions(ids) {
+function deleteMultipleSessions(ids) {
+  // This function is called when multiple sessions are selected and the gray
+  // trash button is clicked
+
   // Check input validity
   if (!Array.isArray(ids)) return;
 
@@ -223,11 +228,16 @@ function delSessions(ids) {
   // Loop through IDs and delete them
   deleted = 0;
   for (const id of ids) {
-    delSession(id, ids.length, ownSessionDelete);
+    deleteOneSession(id, ids.length, ownSessionDelete);
   }
 }
 
-function delSession(id, len, ownSessionDelete) {
+function deleteOneSession(id, len, ownSessionDelete) {
+  // This function is called to delete a single session
+  // If we are batch deleting, we ensure that we do not delete our own session
+  // before having successfully deleted all other sessions, the deletion of
+  // our own session is then triggered by the last successful deletion of
+  // another session (ownSessionDelete == true, len == global deleted)
   $.ajax({
     url: "/api/auth/session/" + id,
     method: "DELETE",
@@ -237,7 +247,7 @@ function delSession(id, len, ownSessionDelete) {
       if (++deleted < len) return;
 
       // All other sessions have been deleted, now delete own session
-      if (ownSessionDelete) delSession(ownSessionID, 1, false);
+      if (ownSessionDelete) deleteOneSession(ownSessionID, 1, false);
 
       if (id !== ownSessionID) {
         // Reload table to remove session