ytmdesktop-youtube-music: split versions

Signed-off-by: Patrick Linnane <patrick@linnane.io>

Casks/y/ytmdesktop-youtube-music.rb

@@ -1,9 +1,14 @@
 cask "ytmdesktop-youtube-music" do
   arch arm: "arm64", intel: "x64"
 
-  version "2.0.0"
-  sha256 arm:   "c7a7734d295eaa3a8a7d42db2c2013618fd3fc06e9600d1c1485e1eec153b0cd",
-         intel: "8be61191307a1609adfac81fec6d440f17a0f81f1b94b618ef37332262a8d8c8"
+  on_arm do
+    version "2.0.0"
+    sha256 "c7a7734d295eaa3a8a7d42db2c2013618fd3fc06e9600d1c1485e1eec153b0cd"
+  end
+  on_intel do
+    version "2.0.1"
+    sha256 "ed17891bd7182b8b1ae3a0adc5239eac8c3fbf5ec207512d0928e234433030b2"
+  end
 
   url "https://github.com/ytmdesktop/ytmdesktop/releases/download/v#{version}/YouTube-Music-Desktop-App-darwin-#{arch}-#{version}.zip",
       verified: "github.com/ytmdesktop/"
@@ -11,6 +16,25 @@ cask "ytmdesktop-youtube-music" do
   desc "YouTube music client"
   homepage "https://ytmdesktop.app/"
 
+  # Not every GitHub release provides a file for both architectures, so we check
+  # multiple recent releases instead of only the "latest" release.
+  livecheck do
+    url :url
+    regex(/Desktop[._-]App[._-]darwin[._-](?:#{arch})[._-]v?(\d+(?:\.\d+)+)\.(?:dmg|pkg|zip)$/i)
+    strategy :github_releases do |json, regex|
+      json.map do |release|
+        next if release["draft"] || release["prerelease"]
+
+        release["assets"]&.map do |asset|
+          match = asset["name"]&.match(regex)
+          next if match.blank?
+
+          match[1]
+        end
+      end.flatten
+    end
+  end
+
   depends_on macos: ">= :catalina"
 
   app "YouTube Music Desktop App.app"