defmodule Backend.CrawlInteraction do
  use Ecto.Schema
  import Ecto.Changeset

  schema "crawl_interactions" do
    belongs_to :crawl, Backend.Crawl

    belongs_to :source, Backend.Instance,
      references: :domain,
      type: :string,
      foreign_key: :source_domain

    belongs_to :target, Backend.Instance,
      references: :domain,
      type: :string,
      foreign_key: :target_domain

    field :mentions, :integer

    timestamps()
  end

  @doc false
  def changeset(crawl_interaction, attrs) do
    crawl_interaction
    |> cast(attrs, [:crawl, :source, :target, :mentions])
    |> validate_required([:crawl, :source, :target, :mentions])
  end
end