From f5998495af9a42ff247c685b2a7ad8f7dd9592a7 Mon Sep 17 00:00:00 2001
From: Pokey Rule <pokey.rule@gmail.com>
Date: Sun, 7 Nov 2021 17:05:45 +0000
Subject: [PATCH 1/2] Touch file hat snapshots

---
 src/extension.ts | 5 +++++
 src/paths.ts     | 4 ++++
 2 files changed, 9 insertions(+)

diff --git a/src/extension.ts b/src/extension.ts
index 99466b0..0b72dad 100755
--- a/src/extension.ts
+++ b/src/extension.ts
@@ -2,6 +2,7 @@ import * as vscode from "vscode";
 
 import { initializeCommunicationDir } from "./initializeCommunicationDir";
 import CommandRunner from "./commandRunner";
+import { getNamedSubdir } from "./paths";
 
 export function activate(context: vscode.ExtensionContext) {
   initializeCommunicationDir();
@@ -14,6 +15,10 @@ export function activate(context: vscode.ExtensionContext) {
       commandRunner.runCommand
     )
   );
+
+  return {
+    getNamedSubdir,
+  };
 }
 
 // this method is called when your extension is deactivated
diff --git a/src/paths.ts b/src/paths.ts
index 2b5bdf2..36cd4f5 100644
--- a/src/paths.ts
+++ b/src/paths.ts
@@ -11,6 +11,10 @@ export function getCommunicationDirPath() {
   return join(tmpdir(), `vscode-command-server${suffix}`);
 }
 
+export function getNamedSubdir(name: string): string {
+  return join(getCommunicationDirPath(), "namedSubdirs", name);
+}
+
 export function getRequestPath() {
   return join(getCommunicationDirPath(), "request.json");
 }

From 23740d0d16d0ab37d37f8cb5f84a78fe1b7e8027 Mon Sep 17 00:00:00 2001
From: Pokey Rule <pokey.rule@gmail.com>
Date: Tue, 30 Nov 2021 13:01:23 +0000
Subject: [PATCH 2/2] Add support for signals

---
 LICENSE          | 21 +++++++++++++++++++++
 src/extension.ts | 14 ++++++++++++--
 src/paths.ts     |  4 ++--
 src/signal.ts    | 33 +++++++++++++++++++++++++++++++++
 4 files changed, 68 insertions(+), 4 deletions(-)
 create mode 100644 LICENSE
 create mode 100644 src/signal.ts

diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..ec2b623
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2021 Brandon Virgil Rule
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/src/extension.ts b/src/extension.ts
index 0b72dad..e218eac 100755
--- a/src/extension.ts
+++ b/src/extension.ts
@@ -2,7 +2,7 @@ import * as vscode from "vscode";
 
 import { initializeCommunicationDir } from "./initializeCommunicationDir";
 import CommandRunner from "./commandRunner";
-import { getNamedSubdir } from "./paths";
+import { getInboundSignal } from "./signal";
 
 export function activate(context: vscode.ExtensionContext) {
   initializeCommunicationDir();
@@ -17,7 +17,17 @@ export function activate(context: vscode.ExtensionContext) {
   );
 
   return {
-    getNamedSubdir,
+    /**
+     * These signals can be used as a form of IPC to indicate that an event has
+     * occurred.
+     */
+    signals: {
+      /**
+       * This signal is emitted by the voice engine to indicate that a phrase has
+       * just begun execution.
+       */
+      prePhrase: getInboundSignal("prePhrase"),
+    },
   };
 }
 
diff --git a/src/paths.ts b/src/paths.ts
index 36cd4f5..237c110 100644
--- a/src/paths.ts
+++ b/src/paths.ts
@@ -11,8 +11,8 @@ export function getCommunicationDirPath() {
   return join(tmpdir(), `vscode-command-server${suffix}`);
 }
 
-export function getNamedSubdir(name: string): string {
-  return join(getCommunicationDirPath(), "namedSubdirs", name);
+export function getSignalDirPath(): string {
+  return join(getCommunicationDirPath(), "signals");
 }
 
 export function getRequestPath() {
diff --git a/src/signal.ts b/src/signal.ts
new file mode 100644
index 0000000..02dd679
--- /dev/null
+++ b/src/signal.ts
@@ -0,0 +1,33 @@
+import { stat } from "fs/promises";
+import { join } from "path";
+import { getSignalDirPath } from "./paths";
+
+class InboundSignal {
+  constructor(private path: string) {}
+
+  /**
+   * Gets the current version of the signal. This version string changes every
+   * time the signal is emitted, and can be used to detect whether signal has
+   * been emitted between two timepoints.
+   * @returns The current signal version or null if the signal file could not be
+   * found
+   */
+  async getVersion() {
+    try {
+      return (await stat(this.path)).mtimeMs.toString();
+    } catch (err) {
+      if ((err as NodeJS.ErrnoException).code !== "ENOENT") {
+        throw err;
+      }
+
+      return null;
+    }
+  }
+}
+
+export function getInboundSignal(name: string) {
+  const signalDir = getSignalDirPath();
+  const path = join(signalDir, name);
+
+  return new InboundSignal(path);
+}