philomena/lib/philomena/channels.ex

defmodule Philomena.Channels do
  @moduledoc """
  The Channels context.
  """

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

  alias Philomena.Channels.Channel

  @doc """
  Returns the list of channels.

  ## Examples

      iex> list_channels()
      [%Channel{}, ...]

  """
  def list_channels do
    Repo.all(Channel)
  end

  @doc """
  Gets a single channel.

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

  ## Examples

      iex> get_channel!(123)
      %Channel{}

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

  """
  def get_channel!(id), do: Repo.get!(Channel, id)

  @doc """
  Creates a channel.

  ## Examples

      iex> create_channel(%{field: value})
      {:ok, %Channel{}}

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

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

  @doc """
  Updates a channel.

  ## Examples

      iex> update_channel(channel, %{field: new_value})
      {:ok, %Channel{}}

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

  """
  def update_channel(%Channel{} = channel, attrs) do
    channel
    |> Channel.changeset(attrs)
    |> Repo.update()
  end

  @doc """
  Deletes a Channel.

  ## Examples

      iex> delete_channel(channel)
      {:ok, %Channel{}}

      iex> delete_channel(channel)
      {:error, %Ecto.Changeset{}}

  """
  def delete_channel(%Channel{} = channel) do
    Repo.delete(channel)
  end

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

  ## Examples

      iex> change_channel(channel)
      %Ecto.Changeset{source: %Channel{}}

  """
  def change_channel(%Channel{} = channel) do
    Channel.changeset(channel, %{})
  end

  alias Philomena.Channels.Subscription

  @doc """
  Returns the list of channel_subscriptions.

  ## Examples

      iex> list_channel_subscriptions()
      [%Subscription{}, ...]

  """
  def list_channel_subscriptions do
    Repo.all(Subscription)
  end

  @doc """
  Gets a single subscription.

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

  ## Examples

      iex> get_subscription!(123)
      %Subscription{}

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

  """
  def get_subscription!(id), do: Repo.get!(Subscription, id)

  @doc """
  Creates a subscription.

  ## Examples

      iex> create_subscription(%{field: value})
      {:ok, %Subscription{}}

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

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

  @doc """
  Updates a subscription.

  ## Examples

      iex> update_subscription(subscription, %{field: new_value})
      {:ok, %Subscription{}}

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

  """
  def update_subscription(%Subscription{} = subscription, attrs) do
    subscription
    |> Subscription.changeset(attrs)
    |> Repo.update()
  end

  @doc """
  Deletes a Subscription.

  ## Examples

      iex> delete_subscription(subscription)
      {:ok, %Subscription{}}

      iex> delete_subscription(subscription)
      {:error, %Ecto.Changeset{}}

  """
  def delete_subscription(%Subscription{} = subscription) do
    Repo.delete(subscription)
  end

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

  ## Examples

      iex> change_subscription(subscription)
      %Ecto.Changeset{source: %Subscription{}}

  """
  def change_subscription(%Subscription{} = subscription) do
    Subscription.changeset(subscription, %{})
  end
end