defmodule ArcadiaCloud.Metering.UsageRecord do
  use Ecto.Schema
  import Ecto.Changeset

  @primary_key {:id, :binary_id, autogenerate: true}
  @foreign_key_type :binary_id

  schema "usage_records" do
    field :resource_kind, :string
    field :period_start, :utc_datetime
    field :granularity, :string, default: "daily"
    field :qty, :decimal, default: Decimal.new(0)
    field :sub_attribution, :map

    belongs_to :deployment, ArcadiaCloud.Deployments.CloudDeployment
    belongs_to :resource, ArcadiaCloud.Cloud.CloudResource

    timestamps(type: :utc_datetime, updated_at: false)
  end

  @required ~w(deployment_id resource_kind period_start granularity qty)a
  @optional ~w(resource_id sub_attribution)a

  def changeset(rec, attrs) do
    rec
    |> cast(attrs, @required ++ @optional)
    |> validate_required(@required)
  end
end