defmodule MedicalTranscription.Transcriptions do
  @moduledoc """
  The Transcriptions context.
  """

  import Ecto.Query, warn: false
  alias MedicalTranscription.Repo

  alias MedicalTranscription.Transcriptions.Transcription

  @doc """
  Create transcription record and begin transcribing

  ## Examples

      iex> create_and_transcribe_audio("my-audio.mp3")
      %Transcription{audio_file: "my-audio.mp3"}
  """
  def transcribe_audio(transcription) do
    MedicalTranscription.TranscriptionSupervisor.start_transcription(transcription)
  end

  @doc """
  Returns the list of transcriptions.

  ## Examples

      iex> list_transcriptions()
      [%Transcription{}, ...]

  """
  def list_transcriptions(user) do
    Transcription
    |> where([t], t.user_id == ^user.id)
    |> Repo.all()
  end

  @doc """
  Gets a single transcription.

  Raises `Ecto.NoResultsError` if the Transcription does not exist.

  ## Examples

      iex> get_transcription!(123)
      %Transcription{}

      iex> get_transcription!(456)
      ** (Ecto.NoResultsError)

  """
  def get_transcription!(id), do: Repo.get!(Transcription, id)

  @doc """
  Creates a transcription.

  ## Examples

      iex> create_transcription(%{field: value})
      {:ok, %Transcription{}}

      iex> create_transcription(%{field: bad_value})
      {:error, %Ecto.Changeset{}}

  """
  def create_transcription(attrs \\ %{}) do
    %Transcription{}
    |> Transcription.changeset(attrs)
    |> Repo.insert()
  end

  @doc """
  Updates a transcription.

  ## Examples

      iex> update_transcription(transcription, %{field: new_value})
      {:ok, %Transcription{}}

      iex> update_transcription(transcription, %{field: bad_value})
      {:error, %Ecto.Changeset{}}

  """
  def update_transcription(%Transcription{} = transcription, attrs) do
    transcription
    |> Transcription.changeset(attrs)
    |> Repo.update()
  end

  @doc """
  Deletes a transcription.

  ## Examples

      iex> delete_transcription(transcription)
      {:ok, %Transcription{}}

      iex> delete_transcription(transcription)
      {:error, %Ecto.Changeset{}}

  """
  def delete_transcription(%Transcription{} = transcription) do
    Repo.delete(transcription)
  end

  @doc """
  Returns an `%Ecto.Changeset{}` for tracking transcription changes.

  ## Examples

      iex> change_transcription(transcription)
      %Ecto.Changeset{data: %Transcription{}}

  """
  def change_transcription(%Transcription{} = transcription, attrs \\ %{}) do
    Transcription.changeset(transcription, attrs)
  end
end