rubocop linter ok

.rubocop.yml

@@ -0,0 +1,2 @@
+Style/FrozenStringLiteralComment:
+  Enabled: false

.vscode/extensions.json

@@ -4,7 +4,9 @@
         "bung87.rails",
         "aliariff.vscode-erb-beautify",
         "yzhang.markdown-all-in-one",
-        "arturock.gitstash",
-        "bradlc.vscode-tailwindcss"
+        "bradlc.vscode-tailwindcss",
+        "castwide.solargraph",
+        "aki77.rails-db-schema",
+        "formulahendry.auto-rename-tag"
     ]
 }

Gemfile

@@ -1,34 +1,34 @@
-source "https://rubygems.org"
+source 'https://rubygems.org'
 git_source(:github) { |repo| "https://github.com/#{repo}.git" }
 
-ruby "3.1.4"
+ruby '3.1.4'
 
 # Bundle edge Rails instead: gem "rails", github: "rails/rails", branch: "main"
-gem "rails", "~> 7.0.5"
+gem 'rails', '~> 7.0.5'
 
 # The original asset pipeline for Rails [https://github.com/rails/sprockets-rails]
-gem "sprockets-rails"
+gem 'sprockets-rails'
 
 # Use sqlite3 as the database for Active Record
-gem "sqlite3", "~> 1.4"
+gem 'sqlite3', '~> 1.4'
 
 # Use the Puma web server [https://github.com/puma/puma]
-gem "puma", "~> 5.0"
+gem 'puma', '~> 5.0'
 
 # Use JavaScript with ESM import maps [https://github.com/rails/importmap-rails]
-gem "importmap-rails"
+gem 'importmap-rails'
 
 # Hotwire's SPA-like page accelerator [https://turbo.hotwired.dev]
-gem "turbo-rails"
+gem 'turbo-rails'
 
 # Hotwire's modest JavaScript framework [https://stimulus.hotwired.dev]
-gem "stimulus-rails"
+gem 'stimulus-rails'
 
 # Use Tailwind CSS [https://github.com/rails/tailwindcss-rails]
-gem "tailwindcss-rails"
+gem 'tailwindcss-rails'
 
 # Build JSON APIs with ease [https://github.com/rails/jbuilder]
-gem "jbuilder"
+gem 'jbuilder'
 
 # Use Redis adapter to run Action Cable in production
 # gem "redis", "~> 4.0"
@@ -40,14 +40,14 @@ gem "jbuilder"
 # gem "bcrypt", "~> 3.1.7"
 
 # Windows does not include zoneinfo files, so bundle the tzinfo-data gem
-gem "tzinfo-data", platforms: %i[ mingw mswin x64_mingw jruby ]
+gem 'tzinfo-data', platforms: %i[mingw mswin x64_mingw jruby]
 
 # Reduces boot times through caching; required in config/boot.rb
-gem "bootsnap", require: false
+gem 'bootsnap', require: false
 
 # Semantic logger for colorized output logging
-gem "amazing_print"
-gem "rails_semantic_logger"
+gem 'amazing_print'
+gem 'rails_semantic_logger'
 
 # Use Sass to process CSS
 # gem "sassc-rails"
@@ -57,24 +57,27 @@ gem "rails_semantic_logger"
 
 group :development, :test do
   # See https://guides.rubyonrails.org/debugging_rails_applications.html#debugging-with-the-debug-gem
-  gem "debug", platforms: %i[ mri mingw x64_mingw ]
+  gem 'debug', platforms: %i[mri mingw x64_mingw]
 end
 
 group :development do
   # Use console on exceptions pages [https://github.com/rails/web-console]
-  gem "web-console"
+  gem 'web-console'
 
   # Add speed badges [https://github.com/MiniProfiler/rack-mini-profiler]
   # gem "rack-mini-profiler"
 
   # Speed up commands on slow machines / big apps [https://github.com/rails/spring]
   # gem "spring"
-  gem "rails_live_reload"
+  gem 'rails_live_reload'
+  gem 'rubocop'
+  gem 'rubocop-rails'
+  gem 'solargraph'
 end
 
 group :test do
   # Use system testing [https://guides.rubyonrails.org/testing.html#system-testing]
-  gem "capybara"
-  gem "selenium-webdriver"
-  gem "webdrivers"
+  gem 'capybara'
+  gem 'selenium-webdriver'
+  gem 'webdrivers'
 end

Gemfile.lock

@@ -69,6 +69,9 @@ GEM
     addressable (2.8.4)
       public_suffix (>= 2.0.2, < 6.0)
     amazing_print (1.5.0)
+    ast (2.4.2)
+    backport (1.2.0)
+    benchmark (0.2.1)
     bindex (0.8.1)
     bootsnap (1.16.0)
       msgpack (~> 1.2)
@@ -88,6 +91,8 @@ GEM
     debug (1.8.0)
       irb (>= 1.5.0)
       reline (>= 0.3.1)
+    diff-lcs (1.5.0)
+    e2mmap (0.1.0)
     erubi (1.12.0)
     ffi (1.15.5)
     globalid (1.1.0)
@@ -100,9 +105,15 @@ GEM
     io-console (0.6.0)
     irb (1.6.4)
       reline (>= 0.3.0)
+    jaro_winkler (1.5.6)
     jbuilder (2.11.5)
       actionview (>= 5.0.0)
       activesupport (>= 5.0.0)
+    json (2.6.3)
+    kramdown (2.4.0)
+      rexml
+    kramdown-parser-gfm (1.1.0)
+      kramdown (~> 2.0)
     listen (3.8.0)
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
@@ -132,6 +143,9 @@ GEM
     nio4r (2.5.9)
     nokogiri (1.15.2-x86_64-linux)
       racc (~> 1.4)
+    parallel (1.23.0)
+    parser (3.2.2.1)
+      ast (~> 2.4.1)
     public_suffix (5.0.1)
     puma (5.6.5)
       nio4r (~> 2.0)
@@ -175,14 +189,35 @@ GEM
       rake (>= 12.2)
       thor (~> 1.0)
       zeitwerk (~> 2.5)
+    rainbow (3.1.1)
     rake (13.0.6)
     rb-fsevent (0.11.2)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
+    rbs (2.8.4)
     regexp_parser (2.8.0)
     reline (0.3.4)
       io-console (~> 0.5)
+    reverse_markdown (2.1.1)
+      nokogiri
     rexml (3.2.5)
+    rubocop (1.51.0)
+      json (~> 2.3)
+      parallel (~> 1.10)
+      parser (>= 3.2.0.0)
+      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-rails (2.19.1)
+      activesupport (>= 4.2.0)
+      rack (>= 1.1)
+      rubocop (>= 1.33.0, < 2.0)
+    ruby-progressbar (1.13.0)
     rubyzip (2.3.2)
     selenium-webdriver (4.9.1)
       rexml (~> 3.2, >= 3.2.5)
@@ -190,6 +225,22 @@ GEM
       websocket (~> 1.0)
     semantic_logger (4.13.0)
       concurrent-ruby (~> 1.0)
+    solargraph (0.49.0)
+      backport (~> 1.2)
+      benchmark
+      bundler (~> 2.0)
+      diff-lcs (~> 1.4)
+      e2mmap
+      jaro_winkler (~> 1.5)
+      kramdown (~> 2.3)
+      kramdown-parser-gfm (~> 1.1)
+      parser (~> 3.0)
+      rbs (~> 2.0)
+      reverse_markdown (~> 2.0)
+      rubocop (~> 1.38)
+      thor (~> 1.0)
+      tilt (~> 2.0)
+      yard (~> 0.9, >= 0.9.24)
     sprockets (4.2.0)
       concurrent-ruby (~> 1.0)
       rack (>= 2.2.4, < 4)
@@ -203,6 +254,7 @@ GEM
     tailwindcss-rails (2.0.29-x86_64-linux)
       railties (>= 6.0.0)
     thor (1.2.2)
+    tilt (2.1.0)
     timeout (0.3.2)
     turbo-rails (1.4.0)
       actionpack (>= 6.0.0)
@@ -210,6 +262,7 @@ GEM
       railties (>= 6.0.0)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
+    unicode-display_width (2.4.2)
     web-console (4.2.0)
       actionview (>= 6.0.0)
       activemodel (>= 6.0.0)
@@ -225,6 +278,7 @@ GEM
     websocket-extensions (0.1.5)
     xpath (3.2.0)
       nokogiri (~> 1.8)
+    yard (0.9.34)
     zeitwerk (2.6.8)
 
 PLATFORMS
@@ -241,7 +295,10 @@ DEPENDENCIES
   rails (~> 7.0.5)
   rails_live_reload
   rails_semantic_logger
+  rubocop
+  rubocop-rails
   selenium-webdriver
+  solargraph
   sprockets-rails
   sqlite3 (~> 1.4)
   stimulus-rails

app/controllers/application_controller.rb

@@ -1,3 +1,6 @@
+# frozen_string_literal: true
+
+# Base Application
 class ApplicationController < ActionController::Base
   MAX_DURATION_TO_COMPLETE_IN_SECONDS = 3
 
@@ -8,7 +11,8 @@ class ApplicationController < ActionController::Base
     ensure
       duration = Process.clock_gettime(Process::CLOCK_MONOTONIC) - start
       if duration > MAX_DURATION_TO_COMPLETE_IN_SECONDS
-        logger.warn("processing took too long to complete, please review your code as asynchronous job!", duration: duration * 1_000)
+        logger.warn('processing took too long to complete, please review your code as asynchronous job!',
+                    duration: duration * 1_000)
       end
     end
   end

app/controllers/main_controller.rb

@@ -1,18 +1,23 @@
+# MainController for basic routes
 class MainController < ApplicationController
   def home
-    logger.info "efficient logging for dark theme"
+    logger.info 'efficient logging for dark theme'
   end
 
   def about
-    logger.debug "some debugging info"
+    logger.debug 'some debugging info'
 
-    logger.info "relevant information"
+    logger.info 'relevant information'
     logger.info "multiline\nline2\nline3"
 
-    logger.warn "a warning"
+    logger.warn 'a warning'
     # logger.error "an error"
 
     # raise "this is an error"
     # sleep 3
   end
+
+  def mymethod
+    puts 'hello world'
+  end
 end

app/views/main/home.html.erb

@@ -1,8 +1,8 @@
 <div>
   <h1 class="text-4xl font-bold">HOME</h1>
-  <h2 class="text-2xl bg-gray-400">
+  <div class="text-2xl bg-gray-400">
     this is a welcome message.
-  </h2>
+  </div>
   <div class="italic text-2xl">
     Lorem ipsum dolor sit amet, consectetur adipisicing elit. Aspernatur provident dolor quod laboriosam facere quas, excepturi quasi consequuntur quo pariatur recusandae, eaque doloremque voluptas, a commodi officia ducimus animi incidunt.
   </div>

test/controllers/main_controller_test.rb

@@ -1,12 +1,12 @@
-require "test_helper"
+require 'test_helper'
 
 class MainControllerTest < ActionDispatch::IntegrationTest
-  test "should get home" do
+  test 'should get home' do
     get main_home_url
     assert_response :success
   end
 
-  test "should get about" do
+  test 'should get about' do
     get main_about_url
     assert_response :success
   end