class Lookbook::ApplicationController

def self.controller_path
  "lookbook"
end

def assign_instance_vars
  @previews = Lookbook.previews
  @pages = Lookbook.pages
  @config = Lookbook.config
  @engine = Lookbook.engine
end

def feature_enabled?(feature)
  Lookbook::Features.enabled?(feature)
end

def generate_theme_overrides
  @theme_overrides ||= Lookbook.theme.to_css
end

def index
  landing = Lookbook.pages.find(&:landing?) || Lookbook.pages.first
  if landing.present?
    redirect_to lookbook_page_path(landing.path)
  else
    render "lookbook/index"
  end
end

def prettify_error(exception)
  error_params = {}
  if exception.is_a?(ViewComponent::PreviewTemplateError)
    error_params = {
      file_path: @preview&.file_path,
      line_number: 0,
      source_code: @target&.source
    }
  end
  Lookbook::Error.new(exception, **error_params)
end

def render_in_layout(path, layout: nil, **locals)
  @error = locals[:error]
  render path, layout: layout.presence || (params[:lookbook_embed] ? "lookbook/basic" : "lookbook/application"), locals: locals
end