defimpl Mobilizon.Service.Metadata, for: Mobilizon.Events.Comment do alias Phoenix.HTML alias Phoenix.HTML.Tag alias Mobilizon.Events.Comment def build_tags(%Comment{} = comment) do comment |> do_build_tags() |> Enum.map(&HTML.safe_to_string/1) |> Enum.reduce("", fn tag, acc -> acc <> tag end) end defp do_build_tags(%Comment{} = comment) do [ Tag.tag(:meta, property: "og:title", content: comment.actor.preferred_username), Tag.tag(:meta, property: "og:url", content: comment.url), Tag.tag(:meta, property: "og:description", content: comment.text), Tag.tag(:meta, property: "og:type", content: "website"), Tag.tag(:meta, property: "twitter:card", content: "summary") ] end end