Rename unofficialwhatsapp to whatsie (#23525)

Casks/unofficialwhatsapp.rb

@@ -1,19 +0,0 @@
-cask 'unofficialwhatsapp' do
-  version '1.1.0'
-  sha256 '6b91701c3c980dfbb1ea7213f880767bcc04e681813c6c339f6212e4db49d588'
-
-  url "https://github.com/Aluxian/WhatsApp-Desktop/releases/download/v#{version}/UnofficialWhatsApp.dmg"
-  appcast 'https://github.com/Aluxian/WhatsApp-Desktop/releases.atom',
-          checkpoint: 'cc6a39b5f8d6f92e83bd040fdaea2991aa2f2b2b655461f657b3d9b77cd01731'
-  name 'Unofficial WhatsApp for Desktop'
-  homepage 'https://github.com/Aluxian/WhatsApp-Desktop'
-  license :mit
-
-  app 'UnofficialWhatsApp.app'
-
-  zap delete: [
-                '~/Library/Preferences/com.aluxian.whatsappfordesktop.plist',
-                '~/Library/Application Support/UnofficialWhatsApp/',
-                '~/Library/Saved Application State/com.aluxian.whatsappfordesktop.savedState/',
-              ]
-end

Casks/whatsie.rb

@@ -0,0 +1,32 @@
+cask 'whatsie' do
+  version '2.0.19'
+  sha256 'f40922bfc768460c1a56212abc34e7be1659e0b30a50ff1dd7fcd3fc77dd4aa0'
+
+  # github.com/Aluxian/Whatsie was verified as official when first introduced to the cask
+  url "https://github.com/Aluxian/Whatsie/releases/download/v#{version}/whatsie-#{version}-osx.dmg"
+  appcast 'https://github.com/Aluxian/Whatsie/releases.atom',
+          checkpoint: 'bda4afec7f0a0fe936a3d2202f1c49370545960b5f06f5bf36ac7bfd5eb9bf59'
+  name 'Whatsie'
+  homepage 'https://whatsie.chat/'
+  license :mit
+
+  auto_updates true
+  depends_on macos: '>= :mountain_lion'
+
+  app 'Whatsie.app'
+
+  uninstall launchctl:  'com.aluxian.whatsie',
+            login_item: 'UnofficialWhatsApp'
+
+  zap delete: [
+                '~/Library/Application Support/UnofficialWhatsApp',
+                '~/Library/Application Support/Whatsie',
+                '~/Library/Caches/com.aluxian.whatsie',
+                '~/Library/Caches/com.aluxian.whatsie.ShipIt',
+                '~/Library/Preferences/com.aluxian.whatsappfordesktop.plist',
+                '~/Library/Preferences/com.aluxian.whatsie.helper.plist',
+                '~/Library/Preferences/com.aluxian.whatsie.plist',
+                '~/Library/Saved Application State/com.aluxian.whatsappfordesktop.savedState',
+                '~/Library/Saved Application State/com.aluxian.whatsie.savedState',
+              ]
+end