fix(vscode): drop selected profiles that no longer exist in the config

When a profile was selected and then removed from robot.toml — for
example after switching git branches — the selection stayed active.
This produced a "profile not found" error on every test run, and the
profile could not be deselected because the selection menu refused to
open when no profiles were left to choose from.

Now opening "Select Configuration Profiles" removes any selected
profile that is no longer defined in the configuration and shows a
message listing which profiles were removed. If the available profiles
cannot be determined (e.g. an invalid environment), the current
selection is left untouched.

Fixes #498

Author: d-biehl

vscode-client/extension/testcontrollermanager.ts

@@ -587,13 +587,32 @@ export class TestControllerManager {
     }
     try {
       const config = vscode.workspace.getConfiguration(CONFIG_SECTION, folder);
-      const result = await this.getRobotCodeProfiles(folder, config.get("profiles", undefined));
-
-      if (result.profiles.length === 0 && result.messages) {
-        await vscode.window.showWarningMessage(result.messages.join("\n"));
-        return;
+      const selectedProfiles = config.get<string[]>("profiles", []);
+      const result = await this.getRobotCodeProfiles(folder, selectedProfiles.length ? selectedProfiles : undefined);
+
+      // Drop configured profiles that are no longer defined in the configuration so they don't
+      // linger as an unselectable, active selection. Skip this when the available profiles could
+      // not be determined (e.g. invalid environment) to avoid clearing a still-valid selection.
+      const couldNotDetermine = result.profiles.length === 0 && !result.messages?.length;
+      const availableNames = new Set(result.profiles.map((p) => p.name));
+      const removedProfiles = couldNotDetermine ? [] : selectedProfiles.filter((name) => !availableNames.has(name));
+      if (removedProfiles.length > 0) {
+        await config.update(
+          "profiles",
+          selectedProfiles.filter((name) => availableNames.has(name)),
+          vscode.ConfigurationTarget.WorkspaceFolder,
+        );
       }
 
+      const removedMessage =
+        removedProfiles.length === 0
+          ? undefined
+          : removedProfiles.length === 1
+            ? `The selected profile "${removedProfiles[0]}" was removed because it is no longer defined in the configuration.`
+            : `The selected profiles ${removedProfiles
+                .map((p) => `"${p}"`)
+                .join(", ")} were removed because they are no longer defined in the configuration.`;
+
       const options = result.profiles.map((p) => {
         return {
           label: truncateAndReplaceNewlines(p.name.trim()),
@@ -602,6 +621,18 @@ export class TestControllerManager {
         };
       });
 
+      if (options.length === 0) {
+        const baseMessage = result.messages?.length
+          ? result.messages.join("\n")
+          : "No configuration profiles available.";
+        await vscode.window.showWarningMessage(removedMessage ? `${removedMessage}\n${baseMessage}` : baseMessage);
+        return;
+      }
+
+      if (removedMessage) {
+        vscode.window.showWarningMessage(removedMessage);
+      }
+
       const profiles = await vscode.window.showQuickPick([...options], {
         title: `Select Configuration Profiles for folder "${folder.name}"`,
         canPickMany: true,