defmodule Localiser.Domain.Schema.Sensor do
  use Ecto.Schema
  import Ecto.Changeset

  alias Localiser.Domain.Schema.Room
  alias Localiser.Domain.Schema.SensorCalibration

  schema "sensors" do
    field :sensor_id, :string
    field :confirmed, :boolean, default: false
    field :x, :float
    field :y, :float
    field :floor_x, :float, virtual: true
    field :floor_y, :float, virtual: true

    belongs_to :room, Room
    has_many :calibrations, SensorCalibration

    timestamps(type: :utc_datetime)
  end

  @doc false
  def changeset(sensor, attrs) do
    sensor
    |> cast(attrs, [:sensor_id, :confirmed, :room_id, :x, :y])
    |> validate_required([:sensor_id])
    |> unique_constraint(:sensor_id)
    |> assoc_constraint(:room)
  end
end