Refactor sentry-ruby.rb and add comments (#1529)

* Refactor sentry-ruby.rb and add comments

* Update changelog

Author: st0012

CHANGELOG.md

@@ -1,5 +1,8 @@
+## 4.6.5
+
 - SDK should drop the event when any event processor returns nil [#1523](https://github.com/getsentry/sentry-ruby/pull/1523)
 - Add severity as `sentry_logger`'s breadcrumb hint [#1527](https://github.com/getsentry/sentry-ruby/pull/1527)
+- Refactor `sentry-ruby.rb` and add comments [#1529](https://github.com/getsentry/sentry-ruby/pull/1529)
 
 ## 4.6.4
 

sentry-ruby/lib/sentry-ruby.rb

@@ -36,15 +36,27 @@ module Sentry
 
   THREAD_LOCAL = :sentry_hub
 
-  def self.sdk_meta
-    META
-  end
+  class << self
+    attr_accessor :background_worker
 
-  def self.utc_now
-    Time.now.utc
-  end
+    ##### Patch Registration #####
+    #
+    def register_patch(&block)
+      registered_patches << block
+    end
 
-  class << self
+    def apply_patches(config)
+      registered_patches.each do |patch|
+        patch.call(config)
+      end
+    end
+
+    def registered_patches
+      @registered_patches ||= []
+    end
+
+    ##### Integrations #####
+    #
     # Returns a hash that contains all the integrations that have been registered to the main SDK.
     def integrations
       @integrations ||= {}
@@ -55,32 +67,16 @@ def register_integration(name, version)
       meta = { name: "sentry.ruby.#{name}", version: version }.freeze
       integrations[name.to_s] = meta
     end
-  end
 
-  class << self
+    ##### Method Delegation #####
+    #
     extend Forwardable
 
     def_delegators :get_current_client, :configuration, :send_event
     def_delegators :get_current_scope, :set_tags, :set_extras, :set_user, :set_context
 
-    attr_accessor :background_worker
-
-    @@registered_patches = []
-
-    def register_patch(&block)
-      registered_patches << block
-    end
-
-    def apply_patches(config)
-      registered_patches.each do |patch|
-        patch.call(config)
-      end
-    end
-
-    def registered_patches
-      @@registered_patches
-    end
-
+    ##### Main APIs #####
+    #
     def init(&block)
       config = Configuration.new
       yield(config) if block_given?
@@ -193,6 +189,9 @@ def last_event_id
       get_current_hub&.last_event_id
     end
 
+
+    ##### Helpers #####
+    #
     def sys_command(command)
       result = `#{command} 2>&1` rescue nil
       return if result.nil? || result.empty? || ($CHILD_STATUS && $CHILD_STATUS.exitstatus != 0)
@@ -207,6 +206,14 @@ def initialized?
     def logger
       configuration.logger
     end
+
+    def sdk_meta
+      META
+    end
+
+    def utc_now
+      Time.now.utc
+    end
   end
 end