Extract live endpoints to route

src/invidious/routes/live.cr

@@ -0,0 +1,34 @@
+module Invidious::Routes::Live
+  def self.check(env)
+    locale = env.get("preferences").as(Preferences).locale
+
+    # Appears to be a bug in routing, having several routes configured
+    # as `/a/:a`, `/b/:a`, `/c/:a` results in 404
+    value = env.request.resource.split("/")[2]
+    body = ""
+    {"channel", "user", "c"}.each do |type|
+      response = YT_POOL.client &.get("/#{type}/#{value}/live?disable_polymer=1")
+      if response.status_code == 200
+        body = response.body
+      end
+    end
+
+    video_id = body.match(/'VIDEO_ID': "(?<id>[a-zA-Z0-9_-]{11})"/).try &.["id"]?
+    if video_id
+      params = [] of String
+      env.params.query.each do |k, v|
+        params << "#{k}=#{v}"
+      end
+      params = params.join("&")
+
+      url = "/watch?v=#{video_id}"
+      if !params.empty?
+        url += "&#{params}"
+      end
+
+      env.redirect url
+    else
+      env.redirect "/channel/#{value}"
+    end
+  end
+end