class Pu::Saas::PortalGenerator

def add_entity_link_to_header
  header_path = resource_header_path
  return unless File.exist?(Rails.root.join(header_path))
  file_content = File.read(Rails.root.join(header_path))
  return if file_content.include?("entity_url")
  inject_into_file header_path,
    "          section.with_link(label: current_scoped_entity.name, href: entity_url)\n",
    before: /\s*section\.with_link\(label: "Profile"/
end

def add_entity_url_helper
  methods = <<-RUBY
# Returns the URL to the current entity's show page.
def entity_url
  resource_url_for(current_scoped_entity)
end
# Returns all entities the current user belongs to (for the entity switcher).
def user_entities
  @user_entities ||= current_user.#{entity_table.pluralize}
end
  RUBY
  inject_into_concerns_controller concerns_controller_path,
    helper_methods: [:entity_url, :user_entities],
    methods: methods
end

def concerns_controller_path
  "packages/#{portal_package}/app/controllers/#{portal_package}/concerns/controller.rb"
end

def connect_entity_to_portal
  # Shell out so the subprocess can load the newly created entity model
  generate "pu:res:conn", "#{entity_model} --dest=#{portal_package} --singular --policy"
end

def create_portal
  generate "pu:pkg:portal", "#{options[:portal_name]} --auth=#{rodauth_config} --scope=#{entity_model}"
end

def customize_entity_policy
  content = <<-RUBY
update?
rrent_membership&.owner?
destroy?
lse
permitted_attributes_for_read
name]
permitted_attributes_for_update
name]
permitted_associations

  RUBY
  inject_into_file entity_policy_path, content, after: /include #{portal_engine}::ResourcePolicy\n/
end

def entity_model
  options[:entity_model].camelize
end

def entity_policy_path
  "packages/#{portal_package}/app/policies/#{portal_package}/#{entity_table}_policy.rb"
end

def entity_table
  options[:entity_model].underscore
end

def portal_engine
  "#{options[:portal_name].camelize}Portal"
end

def portal_package
  portal_engine.underscore
end

def resource_header_path
  "packages/#{portal_package}/app/views/plutonium/_resource_header.html.erb"
end

def rodauth_config
  options[:rodauth]
end

def start
  create_portal
  connect_entity_to_portal
  customize_entity_policy
  add_entity_url_helper
  add_entity_link_to_header
rescue => e
  exception "#{self.class} failed:", e
end