def source_paths
  [File.expand_path(File.dirname(__FILE__))]
end

def add_gems
  gem 'administrate', '~> 0.8.1'
  gem 'devise', '~> 4.4.3'
  gem 'devise-bootstrapped', github: 'excid3/devise-bootstrapped', branch: 'bootstrap4'
  gem 'devise_masquerade', '~> 0.6.0'
  gem 'font-awesome-sass', '~> 4.7'
  gem 'gravatar_image_tag', github: 'mdeering/gravatar_image_tag'
  gem 'jquery-rails', '~> 4.3.1'
  gem 'bootstrap', '~> 4.0.0.beta'
  gem 'webpacker', '~> 3.0'
  gem 'sidekiq', '~> 5.0'
  gem 'foreman', '~> 0.84.0'
  gem 'omniauth-facebook', '~> 4.0'
  gem 'omniauth-twitter', '~> 1.4'
  gem 'omniauth-github', '~> 1.3'
end

def add_users
  # Install Devise
  generate "devise:install"

  # Configure Devise
  environment "config.action_mailer.default_url_options = { host: 'localhost', port: 3000 }",
              env: 'development'
  route "root to: 'home#index'"

  # Devise notices are installed via Bootstrap
  generate "devise:views:bootstrapped"

  # Create Devise User
  generate :devise, "User",
           "name",
           "announcements_last_read_at:datetime",
           "admin:boolean"

  # Set admin default to false
  in_root do
    migration = Dir.glob("db/migrate/*").max_by{ |f| File.mtime(f) }
    gsub_file migration, /:admin/, ":admin, default: false"
  end

  requirement = Gem::Requirement.new("> 5.2")
  rails_version = Gem::Version.new(Rails::VERSION::STRING)

  if requirement.satisfied_by? rails_version
    gsub_file "config/initializers/devise.rb",
      /  # config.secret_key = .+/,
      "  config.secret_key = Rails.application.credentials.secret_key_base"
  end

  # Add Devise masqueradable to users
  inject_into_file("app/models/user.rb", "omniauthable, :masqueradable, :", after: "devise :")
end

def add_bootstrap
  # Remove Application CSS
  run "rm app/assets/stylesheets/application.css"

  # Add Bootstrap JS
  insert_into_file(
    "app/assets/javascripts/application.js",
    "\n//= require jquery\n//= require popper\n//= require bootstrap",
    after: "//= require rails-ujs"
  )
end

def copy_templates
  directory "app", force: true
  directory "config", force: true

  route "get '/terms', to: 'home#terms'"
  route "get '/privacy', to: 'home#privacy'"
end

def add_webpack
  rails_command 'webpacker:install'
end

def add_sidekiq
  environment "config.active_job.queue_adapter = :sidekiq"

  insert_into_file "config/routes.rb",
    "require 'sidekiq/web'\n\n",
    before: "Rails.application.routes.draw do"

  insert_into_file "config/routes.rb",
    "  authenticate :user, lambda { |u| u.admin? } do\n    mount Sidekiq::Web => '/sidekiq'\n  end\n\n",
    after: "Rails.application.routes.draw do\n"
end

def add_foreman
  copy_file "Procfile"
end

def add_announcements
  generate "model Announcement published_at:datetime announcement_type name description:text"
  route "resources :announcements, only: [:index]"
end

def add_notifications
  generate "model Notification recipient_id:integer actor_id:integer read_at:datetime action:string notifiable_id:integer notifiable_type:string"
  route "resources :notifications, only: [:index]"
end

def add_administrate
  generate "administrate:install"

  gsub_file "app/dashboards/announcement_dashboard.rb",
    /announcement_type: Field::String/,
    "announcement_type: Field::Select.with_options(collection: Announcement::TYPES)"

  gsub_file "app/controllers/admin/application_controller.rb",
    /# TODO Add authentication logic here\./,
    "redirect_to '/', alert: 'Not authorized.' unless user_signed_in? && current_user.admin?"
end

def add_multiple_authentication
    insert_into_file "config/routes.rb",
    ', controllers: { omniauth_callbacks: "users/omniauth_callbacks" }',
    after: "  devise_for :users"

    generate "model Service user:references provider uid access_token access_token_secret refresh_token expires_at:datetime auth:text"

    template = """
  if Rails.application.secrets.facebook_app_id.present? && Rails.application.secrets.facebook_app_secret.present?
    config.omniauth :facebook, Rails.application.secrets.facebook_app_id, Rails.application.secrets.facebook_app_secret, scope: 'email,user_posts'
  end

  if Rails.application.secrets.twitter_app_id.present? && Rails.application.secrets.twitter_app_secret.present?
    config.omniauth :twitter, Rails.application.secrets.twitter_app_id, Rails.application.secrets.twitter_app_secret
  end

  if Rails.application.secrets.github_app_id.present? && Rails.application.secrets.github_app_secret.present?
    config.omniauth :github, Rails.application.secrets.github_app_id, Rails.application.secrets.github_app_secret
  end
    """.strip

    insert_into_file "config/initializers/devise.rb", "  " + template + "\n\n",
          before: "  # ==> Warden configuration"
end

# Main setup
add_gems

after_bundle do
  add_users
  add_bootstrap
  add_sidekiq
  add_foreman
  add_webpack
  add_announcements
  add_notifications
  add_multiple_authentication

  copy_templates

  # Migrate
  rails_command "db:create"
  rails_command "db:migrate"

  # Migrations must be done before this
  add_administrate

  git :init
  git add: "."
  git commit: %Q{ -m 'Initial commit' }
end