defmodule Pleroma.Web.ActivityPub.UserView do
  use Pleroma.Web, :view
  alias Pleroma.Web.Salmon
  alias Pleroma.User

  def render("user.json", %{user: user}) do
    {:ok, _, public_key} = Salmon.keys_from_pem(user.info["keys"])
    public_key = :public_key.pem_entry_encode(:RSAPublicKey, public_key)
    public_key = :public_key.pem_encode([public_key])
    %{
      "@context": [
        "https://www.w3.org/ns/activitystreams",
        "https://w3id.org/security/v1",
        %{
          "manuallyApprovesFollowers": "as:manuallyApprovesFollowers",
          "sensitive": "as:sensitive",
          "Hashtag": "as:Hashtag",
          "ostatus": "http://ostatus.org#",
          "atomUri": "ostatus:atomUri",
          "inReplyToAtomUri": "ostatus:inReplyToAtomUri",
          "conversation": "ostatus:conversation",
          "toot": "http://joinmastodon.org/ns#",
          "Emoji": "toot:Emoji"
        }
      ],
      "id": user.ap_id,
      "type": "Person",
      "following": "#{user.ap_id}/following",
      "followers": "#{user.ap_id}/followers",
      "inbox": "#{user.ap_id}/inbox",
      "outbox": "#{user.ap_id}/outbox",
      "preferredUsername": user.nickname,
      "name": user.name,
      "summary": user.bio,
      "url": user.ap_id,
      "manuallyApprovesFollowers": false,
      "publicKey": %{
        "id": "#{user.ap_id}#main-key",
        "owner": user.ap_id,
        "publicKeyPem": public_key
      },
      "endpoints": %{
        "sharedInbox": "#{Pleroma.Web.Endpoint.url}/inbox"
      },
      "icon": %{
        "type": "Image",
        "url": User.avatar_url(user)
      }
    }
  end
end