defimpl Mobilizon.Service.Metadata, for: Mobilizon.Actors.Actor do alias Phoenix.HTML alias Phoenix.HTML.Tag alias Mobilizon.Actors.Actor alias Mobilizon.Web.JsonLD.ObjectView alias Mobilizon.Web.MediaProxy def build_tags(%Actor{} = actor, _locale \\ "en") do [ Tag.tag(:meta, property: "og:title", content: Actor.display_name_and_username(actor)), Tag.tag(:meta, property: "og:url", content: actor.url), Tag.tag(:meta, property: "og:description", content: actor.summary), Tag.tag(:meta, property: "og:type", content: "profile"), Tag.tag(:meta, property: "profile:username", content: actor.preferred_username), Tag.tag(:meta, property: "twitter:card", content: "summary") ] |> maybe_add_avatar(actor) |> maybe_add_group_schema(actor) end @spec maybe_add_avatar(list(Tag.t()), Actor.t()) :: list(Tag.t()) defp maybe_add_avatar(tags, actor) do if is_nil(actor.avatar) do tags else tags ++ [Tag.tag(:meta, property: "og:image", content: actor.avatar.url |> MediaProxy.url())] end end defp maybe_add_group_schema(tags, %Actor{type: :Group} = group) do tags ++ [~s{<script type="application/ld+json">#{json(group)}</script>} |> HTML.raw()] end defp maybe_add_group_schema(tags, _), do: tags # Insert JSON-LD schema by hand because Tag.content_tag wants to escape it defp json(%Actor{} = group) do "group.json" |> ObjectView.render(%{group: group}) |> Jason.encode!() end end