#
# This file is part of Astarte.
#
# Copyright 2020 Ispirata Srl
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

defmodule Astarte.Pairing.API.Health do
  @moduledoc """
  Performs health checks of the Pairing service
  """

  alias Astarte.Pairing.API.Health.BackendHealth
  alias Astarte.Pairing.API.RPC.Pairing

  @doc """
  Gets the backend health. Returns `{:ok, %BackendHealth{}`
  """
  def get_backend_health do
    with {:ok, %{status: status}} <- Pairing.get_health() do
      :telemetry.execute(
        [:astarte, :pairing, :service],
        %{health: 1}
      )

      {:ok, %BackendHealth{status: status}}
    else
      _ ->
        :telemetry.execute(
          [:astarte, :pairing, :service],
          %{health: 0}
        )

        {:ok, %BackendHealth{status: :error}}
    end
  end
end
