module OasRails::Extractors::OasRouteExtractor

def default_tags(oas_route:)
  tags = []
  if OasRails.config.default_tags_from == :namespace
    tag = oas_route.path.split('/').reject(&:empty?).first.try(:titleize)
    tags << tag unless tag.nil?
  else
    tags << oas_route.controller.gsub("/", " ").titleize
  end
  tags
end

def extract_operation_id(oas_route:)
  "#{oas_route.method}#{oas_route.path.gsub('/', '_').gsub(/[{}]/, '')}"
end

def extract_security(oas_route:)
  return [] if oas_route.docstring.tags(:no_auth).any?
  if (methods = oas_route.docstring.tags(:auth).first)
    OasRails.config.security_schemas.keys.map { |key| { key => [] } }.select do |schema|
      methods.types.include?(schema.keys.first.to_s)
    end
  elsif OasRails.config.authenticate_all_routes_by_default
    OasRails.config.security_schemas.keys.map { |key| { key => [] } }
  else
    []
  end
end

def extract_summary(oas_route:)
  oas_route.docstring.tags(:summary).first.try(:text) || generate_crud_name(oas_route.method, oas_route.controller.downcase) || "#{oas_route.verb} #{oas_route.path}"
end

def extract_tags(oas_route:)
  tags = oas_route.docstring.tags(:tags).first
  if tags.nil?
    default_tags(oas_route:)
  else
    tags.text.split(",").map(&:strip).map(&:titleize)
  end
end

def generate_crud_name(method, controller)
  controller_name = controller.to_s.underscore.humanize.downcase.pluralize
  case method.to_sym
  when :index
    "List #{controller_name}"
  when :show
    "View #{controller_name.singularize}"
  when :create
    "Create new #{controller_name.singularize}"
  when :update
    "Update #{controller_name.singularize}"
  when :destroy
    "Delete #{controller_name.singularize}"
  end
end