class ViewComponent::Compiler

def gather_templates
  @templates ||=
    begin
      templates = @component.sidecar_files(
        ActionView::Template.template_handler_extensions
      ).map do |path|
        # Extract format and variant from template filename
        this_format, variant =
          File
            .basename(path)     # "variants_component.html+mini.watch.erb"
            .split(".")[1..-2]  # ["html+mini", "watch"]
            .join(".")          # "html+mini.watch"
            .split("+")         # ["html", "mini.watch"]
            .map(&:to_sym)      # [:html, :"mini.watch"]
        out = Template.new(
          component: @component,
          type: :file,
          path: path,
          lineno: 0,
          extension: path.split(".").last,
          this_format: this_format,
          variant: variant
        )
        # TODO: We should consider inlining the HTML output safety logic into the compiled render_template_for
        # instead of this indirect approach
        @rendered_templates << [out.variant, out.this_format]
        out
      end
      component_instance_methods_on_self = @component.instance_methods(false)
      (
        @component.ancestors.take_while { |ancestor| ancestor != ViewComponent::Base } - @component.included_modules
      ).flat_map { |ancestor| ancestor.instance_methods(false).grep(/^call(_|$)/) }
        .uniq
        .each do |method_name|
          templates << Template.new(
            component: @component,
            type: :inline_call,
            this_format: ViewComponent::Base::VC_INTERNAL_DEFAULT_FORMAT,
            variant: method_name.to_s.include?("call_") ? method_name.to_s.sub("call_", "").to_sym : nil,
            method_name: method_name,
            defined_on_self: component_instance_methods_on_self.include?(method_name)
          )
        end
      if @component.inline_template.present?
        templates << Template.new(
          component: @component,
          type: :inline,
          path: @component.inline_template.path,
          lineno: @component.inline_template.lineno,
          source: @component.inline_template.source.dup,
          extension: @component.inline_template.language
        )
      end
      templates
    end
end