# Pleroma: A lightweight social networking server
# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only

defmodule Pleroma.Web.ActivityPub.ObjectValidators.ChatMessageValidator do
  use Ecto.Schema

  alias Pleroma.Web.ActivityPub.ObjectValidators.Types

  import Ecto.Changeset

  @primary_key false
  @derive Jason.Encoder

  embedded_schema do
    field(:id, Types.ObjectID, primary_key: true)
    field(:to, Types.Recipients, default: [])
    field(:type, :string)
    field(:content, :string)
    field(:actor, Types.ObjectID)
    field(:published, Types.DateTime)
  end

  def cast_and_apply(data) do
    data
    |> cast_data
    |> apply_action(:insert)
  end

  def cast_and_validate(data) do
    data
    |> cast_data()
    |> validate_data()
  end

  def cast_data(data) do
    %__MODULE__{}
    |> changeset(data)
  end

  def fix(data) do
    data
    |> Map.put_new("actor", data["attributedTo"])
  end

  def changeset(struct, data) do
    data = fix(data)

    struct
    |> cast(data, __schema__(:fields))
  end

  def validate_data(data_cng) do
    data_cng
    |> validate_inclusion(:type, ["ChatMessage"])
    |> validate_required([:id, :actor, :to, :type, :content])
  end
end