defmodule Runosaari.Pages do
  @moduledoc """
  The Pages context.
  """

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

  alias Runosaari.Pages.Index

  @doc """
  Returns the list of index_paragraphs.

  ## Examples

      iex> list_index_paragraphs()
      [%Index{}, ...]

  """
  def list_index_paragraphs do
    Repo.all(Index)
  end

  @doc """
  Returns the list of paragraphs sorted by seqnum.

  ## Examples

      iex> list_sorted_index_paragraphs()
      [%Index{}, ...]

  """
  def list_sorted_index_paragraphs do
    Repo.all(Index |> order_by(:seqnum))
  end

  @doc """
  Gets a single index.

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

  ## Examples

      iex> get_index!(123)
      %Index{}

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

  """
  def get_index!(id), do: Repo.get!(Index, id)

  @doc """
  Creates a index.

  ## Examples

      iex> create_index(%{field: value})
      {:ok, %Index{}}

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

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

  @doc """
  Updates a index.

  ## Examples

      iex> update_index(index, %{field: new_value})
      {:ok, %Index{}}

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

  """
  def update_index(%Index{} = index, attrs) do
    index
    |> Index.changeset(attrs)
    |> Repo.update()
  end

  @doc """
  Deletes a index.

  ## Examples

      iex> delete_index(index)
      {:ok, %Index{}}

      iex> delete_index(index)
      {:error, %Ecto.Changeset{}}

  """
  def delete_index(%Index{} = index) do
    Repo.delete(index)
  end

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

  ## Examples

      iex> change_index(index)
      %Ecto.Changeset{data: %Index{}}

  """
  def change_index(%Index{} = index, attrs \\ %{}) do
    Index.changeset(index, attrs)
  end
end