From 20e5eb745697daf51e1522140a63bde81ce19437 Mon Sep 17 00:00:00 2001
From: nyanotech <nyanotechnology@gmail.com>
Date: Wed, 23 Mar 2022 10:24:16 +0000
Subject: [PATCH] MVP of a base64-encode command

---
 package.json     |  6 +++---
 src/extension.ts | 37 +++++++++++++++++--------------------
 2 files changed, 20 insertions(+), 23 deletions(-)

diff --git a/package.json b/package.json
index 327927d..855f82f 100644
--- a/package.json
+++ b/package.json
@@ -10,14 +10,14 @@
 		"Other"
 	],
 	"activationEvents": [
-        "onCommand:recombobulator.helloWorld"
+		"onCommand:recombobulator.base64"
 	],
 	"main": "./dist/extension.js",
 	"contributes": {
 		"commands": [
 			{
-				"command": "recombobulator.helloWorld",
-				"title": "Hello World"
+				"command": "recombobulator.base64",
+				"title": "base64 encode"
 			}
 		]
 	},
diff --git a/src/extension.ts b/src/extension.ts
index 8ca370a..a3185a5 100644
--- a/src/extension.ts
+++ b/src/extension.ts
@@ -1,26 +1,23 @@
-// The module 'vscode' contains the VS Code extensibility API
-// Import the module and reference it with the alias vscode in your code below
 import * as vscode from 'vscode';
 
-// this method is called when your extension is activated
-// your extension is activated the very first time the command is executed
 export function activate(context: vscode.ExtensionContext) {
-	
-	// Use the console to output diagnostic information (console.log) and errors (console.error)
-	// This line of code will only be executed once when your extension is activated
-	console.log('Congratulations, your extension "recombobulator" is now active!');
+	console.log('Recombobulator is activated!');
 
-	// The command has been defined in the package.json file
-	// Now provide the implementation of the command with registerCommand
-	// The commandId parameter must match the command field in package.json
-	let disposable = vscode.commands.registerCommand('recombobulator.helloWorld', () => {
-		// The code you place here will be executed every time your command is executed
-		// Display a message box to the user
-		vscode.window.showInformationMessage('Hello World from recombobulator!');
-	});
+	context.subscriptions.push(vscode.commands.registerCommand('recombobulator.base64', () => {
+		const editor = vscode.window.activeTextEditor;
 
-	context.subscriptions.push(disposable);
+		if (editor) {
+			const document = editor.document;
+			const selection = editor.selection;
+			const text = document.getText(selection);
+
+			const processed = Buffer.from(text).toString('base64'); // TODO - handle different character encodings
+
+			editor.edit(editBuilder => {
+				editBuilder.replace(selection, processed);
+			});
+		}
+
+		vscode.window.showInformationMessage('base64-encoded the selection!');
+	}));
 }
-
-// this method is called when your extension is deactivated
-export function deactivate() {}