patch bump

error tests added

Rakefile updated with new test file names

event tasks moved into :e namespace

.gitignore

@@ -46,7 +46,8 @@ build-iPhoneSimulator/
 # for a library or gem, you might want to ignore these files since the code is
 # intended to run in multiple environments; otherwise, check them in:
 # Gemfile.lock
-# .ruby-version
+.ruby-version
+.ruby_version
 # .ruby-gemset
 
 # unless supporting rvm < 1.11.0 or doing something fancy, ignore this:
@@ -56,6 +57,8 @@ build-iPhoneSimulator/
 # .rubocop-https?--*
 
 # config
-obs.toml
+obs.yml
 # quick test
 quick.rb
+
+.vscode/

Gemfile.lock

@@ -1,20 +1,58 @@
 PATH
   remote: .
   specs:
-    obsws (0.0.3)
-      observer (~> 0.1.1)
+    obsws (0.5.3)
       waitutil (~> 0.2.1)
       websocket-driver (~> 0.7.5)
 
 GEM
   remote: https://rubygems.org/
   specs:
+    ast (2.4.2)
+    json (2.6.3)
+    language_server-protocol (3.17.0.3)
+    lint_roller (1.1.0)
     minitest (5.16.3)
-    observer (0.1.1)
-    perfect_toml (0.9.0)
+    parallel (1.23.0)
+    parser (3.2.2.3)
+      ast (~> 2.4.1)
+      racc
+    racc (1.7.1)
+    rainbow (3.1.1)
     rake (11.3.0)
+    regexp_parser (2.8.1)
+    rexml (3.2.5)
+    rubocop (1.52.1)
+      json (~> 2.3)
+      parallel (~> 1.10)
+      parser (>= 3.2.2.3)
+      rainbow (>= 2.2.2, < 4.0)
+      regexp_parser (>= 1.8, < 3.0)
+      rexml (>= 3.2.5, < 4.0)
+      rubocop-ast (>= 1.28.0, < 2.0)
+      ruby-progressbar (~> 1.7)
+      unicode-display_width (>= 2.4.0, < 3.0)
+    rubocop-ast (1.29.0)
+      parser (>= 3.2.1.0)
+    rubocop-performance (1.18.0)
+      rubocop (>= 1.7.0, < 2.0)
+      rubocop-ast (>= 0.4.0)
+    ruby-progressbar (1.13.0)
+    standard (1.30.1)
+      language_server-protocol (~> 3.17.0.2)
+      lint_roller (~> 1.0)
+      rubocop (~> 1.52.0)
+      standard-custom (~> 1.0.0)
+      standard-performance (~> 1.1.0)
+    standard-custom (1.0.2)
+      lint_roller (~> 1.0)
+      rubocop (~> 1.50)
+    standard-performance (1.1.2)
+      lint_roller (~> 1.1)
+      rubocop-performance (~> 1.18.0)
+    unicode-display_width (2.4.2)
     waitutil (0.2.1)
-    websocket-driver (0.7.5)
+    websocket-driver (0.7.6)
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.5)
 
@@ -24,8 +62,8 @@ PLATFORMS
 DEPENDENCIES
   minitest (~> 5.16, >= 5.16.3)
   obsws!
-  perfect_toml (~> 0.9.0)
   rake (~> 11.2, >= 11.2.2)
+  standard (~> 1.30)
 
 BUNDLED WITH
    2.3.22

README.md

@@ -1,92 +1,90 @@
 [![Gem Version](https://badge.fury.io/rb/obsws.svg)](https://badge.fury.io/rb/obsws)
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://github.com/onyx-and-iris/obsws-ruby/blob/dev/LICENSE)
-[![code style: prettier](https://img.shields.io/badge/code_style-prettier-ff69b4.svg?style=flat-square)](https://github.com/prettier/plugin-ruby)
+[![Ruby Code Style](https://img.shields.io/badge/code_style-standard-violet.svg)](https://github.com/standardrb/standard)
 
-# A Ruby wrapper around OBS Studio WebSocket v5.0
+# Ruby Clients for OBS Studio WebSocket v5.0
 
 ## Requirements
 
--   [OBS Studio](https://obsproject.com/)
--   [OBS Websocket v5 Plugin](https://github.com/obsproject/obs-websocket/releases/tag/5.0.0)
-    -   With the release of OBS Studio version 28, Websocket plugin is included by default. But it should be manually installed for earlier versions of OBS.
--   Ruby 3.0 or greater
+- [OBS Studio](https://obsproject.com/)
+- [OBS Websocket v5 Plugin](https://github.com/obsproject/obs-websocket/releases/tag/5.0.0)
+  - With the release of OBS Studio version 28, Websocket plugin is included by default. But it should be manually installed for earlier versions of OBS.
+- Ruby 3.0 or greater
 
 ## Installation
 
 ### Bundler
 
 ```
-bundle add 'obsws'
+bundle add obsws
 bundle install
 ```
 
-### Gem
-
-`gem install 'obsws'`
-
 ## `Use`
 
 #### Example `main.rb`
 
-pass `host`, `port` and `password` as keyword arguments.
+Pass `host`, `port` and `password` as keyword arguments.
 
 ```ruby
 require "obsws"
 
-def main
-  r_client =
-    OBSWS::Requests::Client.new(
-      host: "localhost",
-      port: 4455,
-      password: "strongpassword"
-    )
-
-  r_client.run do
-    # Toggle the mute state of your Mic input
-    r_client.toggle_input_mute("Mic/Aux")
+class Main
+  def run
+    OBSWS::Requests::Client
+      .new(host: "localhost", port: 4455, password: "strongpassword")
+      .run do |client|
+        # Toggle the mute state of your Mic input
+        client.toggle_input_mute("Mic/Aux")
+      end
   end
 end
 
-main if $0 == __FILE__
+Main.new.run if $PROGRAM_NAME == __FILE__
 ```
 
+Passing OBSWS::Requests::Client.run a block closes the socket once the block returns.
+
 ### Requests
 
-Method names for requests match the API calls but snake cased. `run` accepts a block that closes the socket once you are done.
+Method names for requests match the API calls but snake cased.
 
 example:
 
 ```ruby
-r_client.run do
-  # GetVersion
-  resp = r_client.get_version
+# GetVersion
+resp = r_client.get_version
 
-  # SetCurrentProgramScene
-  r_client.set_current_program_scene("BRB")
-end
+# SetCurrentProgramScene
+r_client.set_current_program_scene("BRB")
 ```
 
 For a full list of requests refer to [Requests](https://github.com/obsproject/obs-websocket/blob/master/docs/generated/protocol.md#requests)
 
 ### Events
 
-Register an observer class and define `on_` methods for events. Method names should match the api event but snake cased.
+Register `on_` callback methods. Method names should match the api event but snake cased.
 
 example:
 
 ```ruby
 class Observer
     def initialize
-        @e_client = OBSWS::Events::Client.new(**kwargs)
-        # register class with the event client
-        @e_client.add_observer(self)
+        @e_client = OBSWS::Events::Client.new(host: "localhost", port: 4455, password: "strongpassword")
+        # register callback methods with the Event client
+        @e_client.register(
+          [
+            method(:on_current_program_scene_changed),
+            method(:on_input_mute_state_changed)
+          ]
+        )
     end
 
     # define "on_" event methods.
-    def on_current_program_scene_changed
+    def on_current_program_scene_changed(data)
         ...
     end
-    def on_input_mute_state_changed
+    def on_input_mute_state_changed(data)
         ...
     end
     ...
@@ -111,10 +109,26 @@ def on_scene_created(data):
 
 ### Errors
 
-If a request fails an `OBSWSError` will be raised with a status code.
+If a general error occurs an `OBSWSError` will be raised.
+
+If a connection attempt fails or times out an `OBSWSConnectionError` will be raised.
+
+If a request fails an `OBSWSRequestError` will be raised with a status code.
+
+- The request name and code are retrievable through attributes {OBSWSRequestError}.req_name and {OBSWSRequestError}.code
 
 For a full list of status codes refer to [Codes](https://github.com/obsproject/obs-websocket/blob/master/docs/generated/protocol.md#requeststatus)
 
+### Logging
+
+To enable logs set an environmental variable `OBSWS_LOG_LEVEL` to the appropriate level.
+
+example in powershell:
+
+```powershell
+$env:OBSWS_LOG_LEVEL="DEBUG"
+```
+
 ### Tests
 
 To run all tests:
@@ -127,4 +141,4 @@ bundle exec rake -v
 
 For the full documentation:
 
--   [OBS Websocket SDK](https://github.com/obsproject/obs-websocket/blob/master/docs/generated/protocol.md#obs-websocket-501-protocol)
+- [OBS Websocket SDK](https://github.com/obsproject/obs-websocket/blob/master/docs/generated/protocol.md#obs-websocket-501-protocol)

Rakefile

@@ -1,9 +1,29 @@
 require "minitest/test_task"
 
+HERE = __dir__
+
 Minitest::TestTask.create(:test) do |t|
   t.libs << "test"
   t.warning = false
-  t.test_globs = ["test/**/*_test.rb"]
+  t.test_globs = ["test/**/test_*.rb"]
 end
 
 task default: :test
+
+namespace :e do
+  desc "Runs the events example"
+  task :events do
+    filepath = File.join(HERE, "examples", "events", "main.rb")
+    ruby filepath
+  end
+  desc "Runs the levels example"
+  task :levels do
+    filepath = File.join(HERE, "examples", "levels", "main.rb")
+    ruby filepath
+  end
+  desc "Runs the scene_rotate example"
+  task :scene_rotate do
+    filepath = File.join(HERE, "examples", "scene_rotate", "main.rb")
+    ruby filepath
+  end
+end

examples/events/Gemfile

@@ -1,9 +0,0 @@
-# frozen_string_literal: true
-
-source "https://rubygems.org"
-
-# gem "rails"
-
-gem "perfect_toml", "~> 0.9.0"
-
-gem "obsws", path: "../.."

examples/events/Gemfile.lock

@@ -1,27 +0,0 @@
-PATH
-  remote: ../..
-  specs:
-    obsws (0.0.2)
-      observer (~> 0.1.1)
-      waitutil (~> 0.2.1)
-      websocket-driver (~> 0.7.5)
-
-GEM
-  remote: https://rubygems.org/
-  specs:
-    observer (0.1.1)
-    perfect_toml (0.9.0)
-    waitutil (0.2.1)
-    websocket-driver (0.7.5)
-      websocket-extensions (>= 0.1.0)
-    websocket-extensions (0.1.5)
-
-PLATFORMS
-  x64-mingw-ucrt
-
-DEPENDENCIES
-  obsws!
-  perfect_toml (~> 0.9.0)
-
-BUNDLED WITH
-   2.3.24

examples/events/main.rb

@@ -1,9 +1,8 @@
-require "obsws"
-require "perfect_toml"
+require_relative "../../lib/obsws"
+require "yaml"
 
-OBSWS::LOGGER.debug!
 
-class Observer
+class Main
   attr_reader :running
 
   def initialize(**kwargs)
@@ -11,18 +10,20 @@ class Observer
     @e_client = OBSWS::Events::Client.new(**kwargs)
     @e_client.add_observer(self)
 
-    puts info.join("\n")
+    puts infostring
     @running = true
   end
 
-  def info
+  def run
+    sleep(0.1) while running
+  end
+
+  def infostring
     resp = @r_client.get_version
     [
-      "Using obs version:",
-      resp.obs_version,
-      "With websocket version:",
-      resp.obs_web_socket_version
-    ]
+      "Using obs version: #{resp.obs_version}.",
+      "With websocket version: #{resp.obs_web_socket_version}"
+    ].join(" ")
   end
 
   def on_current_program_scene_changed(data)
@@ -45,14 +46,8 @@ class Observer
   end
 end
 
-def conn_from_toml
-  PerfectTOML.load_file("obs.toml", symbolize_names: true)[:connection]
+def conn_from_yaml
+  YAML.load_file("obs.yml", symbolize_names: true)[:connection]
 end
 
-def main
-  o = Observer.new(**conn_from_toml)
-
-  sleep(0.1) while o.running
-end
-
-main if $0 == __FILE__
+Main.new(**conn_from_yaml).run if $PROGRAM_NAME == __FILE__

examples/levels/main.rb

@@ -0,0 +1,52 @@
+require_relative "../../lib/obsws"
+require "yaml"
+
+module LevelTypes
+  VU = 0
+  POSTFADER = 1
+  PREFADER = 2
+end
+
+class Main
+  DEVICE = "Desktop Audio"
+
+  def initialize(**kwargs)
+    subs = OBSWS::Events::SUBS::LOW_VOLUME | OBSWS::Events::SUBS::INPUTVOLUMEMETERS
+    @e_client = OBSWS::Events::Client.new(subs:, **kwargs)
+    @e_client.register(
+      [
+        method(:on_input_mute_state_changed),
+        method(:on_input_volume_meters)
+      ]
+    )
+  end
+
+  def run
+    puts "press <Enter> to quit"
+    loop { break if gets.chomp.empty? }
+  end
+
+  def on_input_mute_state_changed(data)
+    if data.input_name == DEVICE
+      puts "#{DEVICE} mute toggled"
+    end
+  end
+
+  def on_input_volume_meters(data)
+    fget = ->(x) { (x > 0) ? (20 * Math.log(x, 10)).round(1) : -200.0 }
+
+    data.inputs.each do |d|
+      name = d[:inputName]
+      if name == DEVICE && !d[:inputLevelsMul].empty?
+        left, right = d[:inputLevelsMul]
+        puts "#{name} [L: #{fget.call(left[LevelTypes::POSTFADER])}, R: #{fget.call(right[LevelTypes::POSTFADER])}]"
+      end
+    end
+  end
+end
+
+def conn_from_yaml
+  YAML.load_file("obs.yml", symbolize_names: true)[:connection]
+end
+
+Main.new(**conn_from_yaml).run if $PROGRAM_NAME == __FILE__

examples/scene_rotate/main.rb

@@ -0,0 +1,23 @@
+require_relative "../../lib/obsws"
+require "yaml"
+
+
+class Main
+  def conn_from_yaml
+    YAML.load_file("obs.yml", symbolize_names: true)[:connection]
+  end
+
+  def run
+    OBSWS::Requests::Client.new(**conn_from_yaml).run do |client|
+      resp = client.get_scene_list
+      resp.scenes.reverse_each do |scene|
+        puts "Switching to scene #{scene[:sceneName]}"
+        client.set_current_program_scene(scene[:sceneName])
+        sleep(0.5)
+      end
+    end
+  end
+end
+
+
+Main.new.run if $PROGRAM_NAME == __FILE__

lib/obsws.rb

@@ -1,11 +1,42 @@
+require "digest/sha2"
+require "json"
+require "waitutil"
+require "socket"
+require "websocket/driver"
 require "logger"
 
+require_relative "obsws/logger"
+require_relative "obsws/driver"
+require_relative "obsws/util"
+require_relative "obsws/mixin"
+require_relative "obsws/base"
+
 require_relative "obsws/req"
 require_relative "obsws/event"
 
-module OBSWS
-  include Logger::Severity
+require_relative "obsws/version"
 
-  LOGGER = Logger.new(STDOUT)
-  LOGGER.level = WARN
+module OBSWS
+  class OBSWSError < StandardError; end
+
+  class OBSWSConnectionError < OBSWSError; end
+
+  class OBSWSRequestError < OBSWSError
+    attr_reader :req_name, :code
+
+    def initialize(req_name, code, msg)
+      @req_name = req_name
+      @code = code
+      @msg = msg
+      super(message)
+    end
+
+    def message
+      msg = [
+        "Request #{@req_name} returned code #{@code}."
+      ]
+      msg << "With message: #{@msg}" if @msg
+      msg.join(" ")
+    end
+  end
 end

lib/obsws/base.rb

@@ -1,72 +1,27 @@
-require "socket"
-require "websocket/driver"
-require "digest/sha2"
-require "json"
-require "observer"
-require "waitutil"
-
-require_relative "mixin"
-require_relative "error"
-
 module OBSWS
-  class Socket
-    attr_reader :url
-
-    def initialize(url, socket)
-      @url = url
-      @socket = socket
-    end
-
-    def write(s)
-      @socket.write(s)
-    end
-  end
-
   class Base
-    include Observable
+    include Logging
+    include Driver::Director
     include Mixin::OPCodes
 
-    attr_reader :id, :driver, :closed
+    attr_reader :closed
+    attr_writer :updater
 
     def initialize(**kwargs)
       host = kwargs[:host] || "localhost"
       port = kwargs[:port] || 4455
       @password = kwargs[:password] || ""
       @subs = kwargs[:subs] || 0
-
-      @socket = TCPSocket.new(host, port)
-      @driver =
-        WebSocket::Driver.client(Socket.new("ws://#{host}:#{port}", @socket))
-      @driver.on :open do |msg|
-        LOGGER.debug("driver socket open")
-      end
-      @driver.on :close do |msg|
-        LOGGER.debug("driver socket closed")
-        @closed = true
-      end
-      @driver.on :message do |msg|
-        LOGGER.debug("received [#{msg}] passing to handler")
-        msg_handler(JSON.parse(msg.data, symbolize_names: true))
-      end
-      start_driver
+      @connect_timeout = kwargs[:connect_timeout] || 3
+      setup_driver(host, port) and start_driver
       WaitUtil.wait_for_condition(
-        "waiting successful identification",
+        "successful identification",
         delay_sec: 0.01,
-        timeout_sec: 3
+        timeout_sec: @connect_timeout
       ) { @identified }
     end
 
-    def start_driver
-      Thread.new do
-        @driver.start
-
-        loop do
-          @driver.parse(@socket.readpartial(4096))
-        rescue EOFError
-          break
-        end
-      end
-    end
+    private
 
     def auth_token(salt:, challenge:)
       Digest::SHA256.base64digest(
@@ -74,7 +29,7 @@ module OBSWS
       )
     end
 
-    def authenticate(auth = nil)
+    def identify(auth)
       payload = {
         op: Mixin::OPCodes::IDENTIFY,
         d: {
@@ -82,29 +37,28 @@ module OBSWS
           eventSubscriptions: @subs
         }
       }
-      payload[:d][:authentication] = auth_token(**auth) if auth
+      if auth
+        if @password.empty?
+          raise OBSWSError("auth enabled but no password provided")
+        end
+        logger.info("initiating authentication")
+        payload[:d][:authentication] = auth_token(**auth)
+      end
       @driver.text(JSON.generate(payload))
     end
 
     def msg_handler(data)
       case data[:op]
       when Mixin::OPCodes::HELLO
-        if data[:d].key? :authentication
-          LOGGER.debug("initiating authentication")
-        else
-          LOGGER.debug("authentication disabled... skipping.")
-        end
-        authenticate(data[:d][:authentication])
+        identify(data[:d][:authentication])
       when Mixin::OPCodes::IDENTIFIED
-        LOGGER.debug("client succesfully identified with server")
         @identified = true
       when Mixin::OPCodes::EVENT, Mixin::OPCodes::REQUESTRESPONSE
-        changed
-        notify_observers(data[:op], data[:d])
+        @updater.call(data[:op], data[:d])
       end
     end
 
-    def req(id, type_, data = nil)
+    public def req(id, type_, data = nil)
       payload = {
         op: Mixin::OPCodes::REQUEST,
         d: {
@@ -113,8 +67,8 @@ module OBSWS
         }
       }
       payload[:d][:requestData] = data if data
-      queued = @driver.text(JSON.generate(payload))
-      LOGGER.debug("request with id #{id} queued? #{queued}")
+      logger.debug("sending request: #{payload}")
+      @driver.text(JSON.generate(payload))
     end
   end
 end

lib/obsws/driver.rb

@@ -0,0 +1,50 @@
+module OBSWS
+  module Driver
+    class Socket
+      attr_reader :url
+
+      def initialize(url, socket)
+        @url = url
+        @socket = socket
+      end
+
+      def write(s)
+        @socket.write(s)
+      end
+    end
+
+    module Director
+      def setup_driver(host, port)
+        @socket = TCPSocket.new(host, port)
+        @driver =
+          WebSocket::Driver.client(Socket.new("ws://#{host}:#{port}", @socket))
+        @driver.on :open do |msg|
+          logger.debug("driver socket open")
+        end
+        @driver.on :close do |msg|
+          logger.debug("driver socket closed")
+          @closed = true
+        end
+        @driver.on :message do |msg|
+          msg_handler(JSON.parse(msg.data, symbolize_names: true))
+        end
+      end
+
+      private def start_driver
+        Thread.new do
+          @driver.start
+
+          loop do
+            @driver.parse(@socket.readpartial(4096))
+          rescue EOFError
+            break
+          end
+        end
+      end
+
+      public def stop_driver
+        @driver.close
+      end
+    end
+  end
+end

lib/obsws/error.rb

@@ -1,6 +0,0 @@
-module OBSWS
-  module Error
-    class OBSWSError < StandardError
-    end
-  end
-end

lib/obsws/event.rb

@@ -1,91 +1,94 @@
-require "json"
-
-require_relative "util"
-require_relative "mixin"
-
 module OBSWS
   module Events
     module SUBS
       NONE = 0
-      GENERAL = (1 << 0)
-      CONFIG = (1 << 1)
-      SCENES = (1 << 2)
-      INPUTS = (1 << 3)
-      TRANSITIONS = (1 << 4)
-      FILTERS = (1 << 5)
-      OUTPUTS = (1 << 6)
-      SCENEITEMS = (1 << 7)
-      MEDIAINPUTS = (1 << 8)
-      VENDORS = (1 << 9)
-      UI = (1 << 10)
+      GENERAL = 1 << 0
+      CONFIG = 1 << 1
+      SCENES = 1 << 2
+      INPUTS = 1 << 3
+      TRANSITIONS = 1 << 4
+      FILTERS = 1 << 5
+      OUTPUTS = 1 << 6
+      SCENEITEMS = 1 << 7
+      MEDIAINPUTS = 1 << 8
+      VENDORS = 1 << 9
+      UI = 1 << 10
 
-      def low_volume
-        GENERAL | CONFIG | SCENES | INPUTS | TRANSITIONS | FILTERS | OUTPUTS |
-          SCENEITEMS | MEDIAINPUTS | VENDORS | UI
-      end
+      LOW_VOLUME = GENERAL | CONFIG | SCENES | INPUTS | TRANSITIONS | FILTERS | OUTPUTS |
+        SCENEITEMS | MEDIAINPUTS | VENDORS | UI
 
-      INPUTVOLUMEMETERS = (1 << 16)
-      INPUTACTIVESTATECHANGED = (1 << 17)
-      INPUTSHOWSTATECHANGED = (1 << 18)
-      SCENEITEMTRANSFORMCHANGED = (1 << 19)
+      INPUTVOLUMEMETERS = 1 << 16
+      INPUTACTIVESTATECHANGED = 1 << 17
+      INPUTSHOWSTATECHANGED = 1 << 18
+      SCENEITEMTRANSFORMCHANGED = 1 << 19
 
-      def high_volume
-        INPUTVOLUMEMETERS | INPUTACTIVESTATECHANGED | INPUTSHOWSTATECHANGED |
-          SCENEITEMTRANSFORMCHANGED
-      end
+      HIGH_VOLUME = INPUTVOLUMEMETERS | INPUTACTIVESTATECHANGED | INPUTSHOWSTATECHANGED |
+        SCENEITEMTRANSFORMCHANGED
 
-      def all
-        low_volume | high_volume
-      end
-
-      module_function :low_volume, :high_volume, :all
+      ALL = LOW_VOLUME | HIGH_VOLUME
     end
 
     module Callbacks
-      include Util
+      include Util::String
+
+      def observers
+        @observers ||= []
+      end
 
       def add_observer(observer)
-        @observers = [] unless defined?(@observers)
-        observer = [observer] if !observer.respond_to? :each
-        observer.each { |o| @observers.append(o) }
+        observer = [observer] unless observer.respond_to? :each
+        observer.each { |o| observers << o unless observers.include? o }
       end
 
       def remove_observer(observer)
-        @observers.delete(observer)
+        observer = [observer] unless observer.respond_to? :each
+        observers.reject! { |o| observer.include? o }
       end
 
-      def notify_observers(event, data)
-        if defined?(@observers)
-          @observers.each do |o|
-            if o.respond_to? "on_#{event.to_snake}"
-              if data.empty?
-                o.send("on_#{event.to_snake}")
-              else
-                o.send("on_#{event.to_snake}", data)
-              end
+      private def notify_observers(event, data)
+        observers.each do |o|
+          if o.is_a? Method
+            if o.name.to_s == "on_#{snakecase(event)}"
+              data.empty? ? o.call : o.call(data)
             end
+          elsif o.respond_to? "on_#{snakecase(event)}"
+            data.empty? ? o.send("on_#{snakecase(event)}") : o.send("on_#{snakecase(event)}", data)
           end
         end
       end
+
+      alias_method :callbacks, :observers
+      alias_method :register, :add_observer
+      alias_method :deregister, :remove_observer
     end
 
     class Client
+      include Logging
       include Callbacks
       include Mixin::TearDown
       include Mixin::OPCodes
 
       def initialize(**kwargs)
-        kwargs[:subs] = SUBS.low_volume
+        kwargs[:subs] ||= SUBS::LOW_VOLUME
         @base_client = Base.new(**kwargs)
-        @base_client.add_observer(self)
+        logger.info("#{self} successfully identified with server")
+      rescue Errno::ECONNREFUSED, WaitUtil::TimeoutError => e
+        msg = "#{e.class.name}: #{e.message}"
+        logger.error(msg)
+        raise OBSWSConnectionError.new(msg)
+      else
+        @base_client.updater = ->(op_code, data) {
+          if op_code == Mixin::OPCodes::EVENT
+            logger.debug("received: #{data}")
+            event = data[:eventType]
+            data = data.fetch(:eventData, {})
+            notify_observers(event, Mixin::Data.new(data, data.keys))
+          end
+        }
       end
 
-      def update(op_code, data)
-        if op_code == Mixin::OPCodes::EVENT
-          event = data[:eventType]
-          data = data.key?(:eventData) ? data[:eventData] : {}
-          notify_observers(event, Mixin::Data.new(data, data.keys))
-        end
+      def to_s
+        self.class.name.split("::").last(2).join("::")
       end
     end
   end

lib/obsws/logger.rb

@@ -0,0 +1,9 @@
+module OBSWS
+  module Logging
+    def logger
+      @logger ||= Logger.new($stdout, level: ENV.fetch("OBSWS_LOG_LEVEL", "WARN"))
+      @logger.progname = instance_of?(::Module) ? name : self.class.name
+      @logger
+    end
+  end
+end

lib/obsws/mixin.rb

@@ -1,13 +1,11 @@
-require_relative "util"
-
 module OBSWS
   module Mixin
     module Meta
-      include Util
+      include Util::String
 
       def make_field_methods(*params)
         params.each do |param|
-          define_singleton_method(param.to_s.to_snake) { @resp[param] }
+          define_singleton_method(snakecase(param.to_s)) { @resp[param] }
         end
       end
     end
@@ -18,24 +16,26 @@ module OBSWS
       def initialize(resp, fields)
         @resp = resp
         @fields = fields
-        self.make_field_methods *fields
+        make_field_methods(*fields)
       end
 
       def empty? = @fields.empty?
 
-      def attrs = @fields.map { |f| f.to_s.to_snake }
+      def attrs = @fields.map { |f| snakecase(f.to_s) }
     end
 
-    class Response < MetaObject
-    end
+    class Response < MetaObject; end
+    # Represents a request response object
 
-    class Data < MetaObject
-    end
+    class Data < MetaObject; end
+    # Represents an event data object
 
     module TearDown
-      def close
-        @base_client.driver.close
+      def stop_driver
+        @base_client.stop_driver
       end
+
+      alias_method :close, :stop_driver
     end
 
     module OPCodes

lib/obsws/util.rb

@@ -1,12 +1,12 @@
 module OBSWS
   module Util
-    class ::String
-      def to_camel
-        self.split(/_/).map(&:capitalize).join
+    module String
+      def camelcase(s)
+        s.split("_").map(&:capitalize).join
       end
 
-      def to_snake
-        self
+      def snakecase(s)
+        s
           .gsub(/([A-Z]+)([A-Z][a-z])/, '\1_\2')
           .gsub(/([a-z\d])([A-Z])/, '\1_\2')
           .downcase

lib/obsws/version.rb

@@ -1,5 +1,5 @@
 module OBSWS
-  module Version
+  module VERSION
     module_function
 
     def major
@@ -7,11 +7,11 @@ module OBSWS
     end
 
     def minor
-      0
+      5
     end
 
     def patch
-      3
+      4
     end
 
     def to_a

main.rb

@@ -1,17 +1,16 @@
-require_relative "lib/obsws"
+require "obsws"
 
-def main
-  r_client =
+class Main
+  def run
     OBSWS::Requests::Client.new(
       host: "localhost",
       port: 4455,
       password: "strongpassword"
-    )
-
-  r_client.run do
-    # Toggle the mute state of your Mic input
-    r_client.toggle_input_mute("Mic/Aux")
+    ).run do |client|
+      # Toggle the mute state of your Mic input
+      client.toggle_input_mute("Mic/Aux")
+    end
   end
 end
 
-main if $0 == __FILE__
+Main.new.run if $PROGRAM_NAME == __FILE__

obsws.gemspec

@@ -1,10 +1,10 @@
 # frozen_string_literal: true
+
 require File.expand_path("lib/obsws/version", __dir__)
-lib = File.expand_path("./lib")
 
 Gem::Specification.new do |spec|
   spec.name = "obsws"
-  spec.version = OBSWS::Version
+  spec.version = OBSWS::VERSION
   spec.summary = "OBS Websocket v5 wrapper"
   spec.description = "A Ruby wrapper around OBS Websocket v5"
   spec.authors = ["onyx_online"]
@@ -13,14 +13,13 @@ Gem::Specification.new do |spec|
   spec.extra_rdoc_files = Dir["README.md", "CHANGELOG.md", "LICENSE"]
   spec.homepage = "https://rubygems.org/gems/obsws"
   spec.license = "MIT"
-  spec.add_runtime_dependency "observer", "~> 0.1.1"
   spec.add_runtime_dependency "websocket-driver", "~> 0.7.5"
   spec.add_runtime_dependency "waitutil", "~> 0.2.1"
-  spec.add_development_dependency "perfect_toml", "~> 0.9.0"
+  spec.add_development_dependency "standard", "~> 1.30"
   spec.add_development_dependency "minitest", "~> 5.16", ">= 5.16.3"
   spec.add_development_dependency "rake", "~> 11.2", ">= 11.2.2"
   spec.required_ruby_version = ">= 3.0"
   spec.metadata = {
-    "source_code_uri" => "https://github.com/onyx-and-iris/obsws.git"
+    "source_code_uri" => "https://github.com/onyx-and-iris/obsws-ruby"
   }
 end

test/minitest_helper.rb

@@ -1,17 +1,21 @@
 require "minitest"
 require "minitest/autorun"
-require "perfect_toml"
+require "yaml"
 
 require_relative "../lib/obsws"
 
 class OBSWSTest < Minitest::Test
-  def self.before_run
-    conn = PerfectTOML.load_file("obs.toml", symbolize_names: true)[:connection]
-    @@r_client = OBSWS::Requests::Client.new(**conn)
+  class << self
+    attr_reader :r_client
+  end
 
-    @@r_client.create_scene("START_TEST")
-    @@r_client.create_scene("BRB_TEST")
-    @@r_client.create_scene("END_TEST")
+  def self.before_run
+    conn = YAML.load_file("obs.yml", symbolize_names: true)[:connection]
+    @r_client = OBSWS::Requests::Client.new(**conn)
+
+    r_client.create_scene("START_TEST")
+    r_client.create_scene("BRB_TEST")
+    r_client.create_scene("END_TEST")
   end
 
   before_run
@@ -23,9 +27,9 @@ class OBSWSTest < Minitest::Test
   end
 
   Minitest.after_run do
-    @@r_client.remove_scene("START_TEST")
-    @@r_client.remove_scene("BRB_TEST")
-    @@r_client.remove_scene("END_TEST")
-    @@r_client.close
+    r_client.remove_scene("START_TEST")
+    r_client.remove_scene("BRB_TEST")
+    r_client.remove_scene("END_TEST")
+    r_client.close
   end
 end

test/obsws/attrs_test.rb

@@ -1,17 +0,0 @@
-require_relative "../minitest_helper"
-
-class AttrsTest < OBSWSTest
-  def test_get_version_attrs
-    resp = @@r_client.get_version
-    assert resp.attrs ==
-             %w[
-               available_requests
-               obs_version
-               obs_web_socket_version
-               platform
-               platform_description
-               rpc_version
-               supported_image_formats
-             ]
-  end
-end

test/obsws/test_attrs.rb

@@ -0,0 +1,17 @@
+require_relative "../minitest_helper"
+
+class AttrsTest < OBSWSTest
+  def test_get_version_attrs
+    resp = OBSWSTest.r_client.get_version
+    assert resp.attrs ==
+      %w[
+        available_requests
+        obs_version
+        obs_web_socket_version
+        platform
+        platform_description
+        rpc_version
+        supported_image_formats
+      ]
+  end
+end

test/obsws/test_error.rb

@@ -0,0 +1,17 @@
+require_relative "../minitest_helper"
+
+class OBSWSConnectionErrorTest < Minitest::Test
+  def test_it_raises_an_obsws_connection_error_on_wrong_password
+    e = assert_raises(OBSWS::OBSWSConnectionError) { OBSWS::Requests::Client.new(host: "localhost", port: 4455, password: "wrongpassword", connect_timeout: 1).new }
+    assert_equal(e.message, "Timed out waiting for successful identification (1 seconds elapsed)")
+  end
+end
+
+class OBSWSRequestErrorTest < Minitest::Test
+  def test_it_raises_an_obsws_request_error_on_invalid_request
+    e = assert_raises(OBSWS::OBSWSRequestError) { OBSWSTest.r_client.toggle_input_mute("unknown") }
+    assert_equal(e.req_name, "ToggleInputMute")
+    assert_equal(e.code, 600)
+    assert_equal(e.message, "Request ToggleInputMute returned code 600. With message: No source was found by the name of `unknown`.")
+  end
+end

test/obsws/test_request.rb

@@ -2,21 +2,21 @@ require_relative "../minitest_helper"
 
 class RequestTest < OBSWSTest
   def test_it_checks_obs_major_version
-    resp = @@r_client.get_version
+    resp = OBSWSTest.r_client.get_version
     ver = resp.obs_version.split(".").map(&:to_i)
     assert ver[0] >= 28
   end
 
   def test_it_checks_ws_major_version
-    resp = @@r_client.get_version
+    resp = OBSWSTest.r_client.get_version
     ver = resp.obs_web_socket_version.split(".").map(&:to_i)
     assert ver[0] >= 5
   end
 
   def test_it_sets_and_gets_current_program_scene
     %w[START_TEST BRB_TEST END_TEST].each do |s|
-      @@r_client.set_current_program_scene(s)
-      resp = @@r_client.get_current_program_scene
+      OBSWSTest.r_client.set_current_program_scene(s)
+      resp = OBSWSTest.r_client.get_current_program_scene
       assert resp.current_program_scene_name == s
     end
   end
@@ -26,13 +26,13 @@ class RequestTest < OBSWSTest
       server: "rtmp://addressofrtmpserver",
       key: "live_myvery_secretkey"
     }
-    @@r_client.set_stream_service_settings("rtmp_common", settings)
-    resp = @@r_client.get_stream_service_settings
+    OBSWSTest.r_client.set_stream_service_settings("rtmp_common", settings)
+    resp = OBSWSTest.r_client.get_stream_service_settings
     assert resp.stream_service_type == "rtmp_common"
     assert resp.stream_service_settings ==
-             {
-               server: "rtmp://addressofrtmpserver",
-               key: "live_myvery_secretkey"
-             }
+      {
+        server: "rtmp://addressofrtmpserver",
+        key: "live_myvery_secretkey"
+      }
   end
 end