defmodule Mobilizon.Events.Session do
  @moduledoc """
  Represents a session for an event (such as a talk at a conference)
  """
  use Ecto.Schema
  import Ecto.Changeset
  alias Mobilizon.Events.{Session, Event, Track}

  schema "sessions" do
    field(:audios_urls, :string)
    field(:language, :string)
    field(:long_abstract, :string)
    field(:short_abstract, :string)
    field(:slides_url, :string)
    field(:subtitle, :string)
    field(:title, :string)
    field(:videos_urls, :string)
    field(:begins_on, Timex.Ecto.DateTimeWithTimezone)
    field(:ends_on, Timex.Ecto.DateTimeWithTimezone)
    belongs_to(:event, Event)
    belongs_to(:track, Track)

    timestamps()
  end

  @doc false
  def changeset(%Session{} = session, attrs) do
    session
    |> cast(attrs, [
      :title,
      :subtitle,
      :short_abstract,
      :long_abstract,
      :language,
      :slides_url,
      :videos_urls,
      :audios_urls,
      :event_id,
      :track_id
    ])
    |> validate_required([
      :title,
      :subtitle,
      :short_abstract,
      :long_abstract,
      :language,
      :slides_url,
      :videos_urls,
      :audios_urls
    ])
  end
end