add qr command to send helper url

tipbot/commands/__init__.py

@@ -5,6 +5,7 @@ from tipbot.commands.tip import tip
 from tipbot.commands.withdraw import withdraw
 from tipbot.commands.balance import balance
 from tipbot.commands.deposit import deposit
+from tipbot.commands.qr import qr
 
 
 all_commands = {
@@ -38,6 +39,11 @@ all_commands = {
         'example': '/help',
         'help': 'Show available commands for the bot',
     },
+    'qr': {
+        'func': qr,
+        'example': '/qr <address>',
+        'help': 'Provides a helpful URL for generating QR code for a Wownero address'
+    },
     'debug': {
         'func': debug,
         'admin': True

tipbot/commands/qr.py

@@ -0,0 +1,13 @@
+def qr(update, context):
+    if len(context.args) < 1:
+        update.message.reply_text('Not enough arguments passed.')
+        return False
+
+    # validate address
+    if len(context.args[0]) in [97, 108]:
+        address = context.args[0]
+    else:
+        update.message.reply_text('This does not look like a valid Wownero address. Try again.')
+        return False
+
+    update.message.reply_text(f'https://wownero.club/address/{address}')