defmodule Eventos.Groups do
  @moduledoc """
  The Groups context.
  """

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

  alias Eventos.Groups.Group

  @doc """
  Returns the list of groups.

  ## Examples

      iex> list_groups()
      [%Group{}, ...]

  """
  def list_groups do
    Repo.all(Group)
  end

  @doc """
  Gets a single group.

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

  ## Examples

      iex> get_group!(123)
      %Group{}

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

  """
  def get_group!(id), do: Repo.get!(Group, id)

  @doc """
  Gets a single group, with all associations loaded.
  """
  def get_group_full!(id) do
    group = Repo.get!(Group, id)
    Repo.preload(group, [:members, :organized_events])
  end

  @doc """
  Creates a group.

  ## Examples

      iex> create_group(%{field: value})
      {:ok, %Group{}}

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

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

  @doc """
  Updates a group.

  ## Examples

      iex> update_group(group, %{field: new_value})
      {:ok, %Group{}}

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

  """
  def update_group(%Group{} = group, attrs) do
    group
    |> Group.changeset(attrs)
    |> Repo.update()
  end

  @doc """
  Deletes a Group.

  ## Examples

      iex> delete_group(group)
      {:ok, %Group{}}

      iex> delete_group(group)
      {:error, %Ecto.Changeset{}}

  """
  def delete_group(%Group{} = group) do
    Repo.delete(group)
  end

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

  ## Examples

      iex> change_group(group)
      %Ecto.Changeset{source: %Group{}}

  """
  def change_group(%Group{} = group) do
    Group.changeset(group, %{})
  end

  alias Eventos.Groups.Member

  @doc """
  Returns the list of members.

  ## Examples

      iex> list_members()
      [%Member{}, ...]

  """
  def list_members do
    Repo.all(Member)
  end

  @doc """
  Gets a single member.

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

  ## Examples

      iex> get_member!(123)
      %Member{}

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

  """
  def get_member!(id), do: Repo.get!(Member, id)

  @doc """
  Creates a member.

  ## Examples

      iex> create_member(%{field: value})
      {:ok, %Member{}}

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

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

  @doc """
  Updates a member.

  ## Examples

      iex> update_member(member, %{field: new_value})
      {:ok, %Member{}}

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

  """
  def update_member(%Member{} = member, attrs) do
    member
    |> Member.changeset(attrs)
    |> Repo.update()
  end

  @doc """
  Deletes a Member.

  ## Examples

      iex> delete_member(member)
      {:ok, %Member{}}

      iex> delete_member(member)
      {:error, %Ecto.Changeset{}}

  """
  def delete_member(%Member{} = member) do
    Repo.delete(member)
  end

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

  ## Examples

      iex> change_member(member)
      %Ecto.Changeset{source: %Member{}}

  """
  def change_member(%Member{} = member) do
    Member.changeset(member, %{})
  end

  alias Eventos.Groups.Request

  @doc """
  Returns the list of requests.

  ## Examples

      iex> list_requests()
      [%Request{}, ...]

  """
  def list_requests do
    Repo.all(Request)
  end

  @doc """
  Gets a single request.

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

  ## Examples

      iex> get_request!(123)
      %Request{}

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

  """
  def get_request!(id), do: Repo.get!(Request, id)

  @doc """
  Creates a request.

  ## Examples

      iex> create_request(%{field: value})
      {:ok, %Request{}}

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

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

  @doc """
  Updates a request.

  ## Examples

      iex> update_request(request, %{field: new_value})
      {:ok, %Request{}}

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

  """
  def update_request(%Request{} = request, attrs) do
    request
    |> Request.changeset(attrs)
    |> Repo.update()
  end

  @doc """
  Deletes a Request.

  ## Examples

      iex> delete_request(request)
      {:ok, %Request{}}

      iex> delete_request(request)
      {:error, %Ecto.Changeset{}}

  """
  def delete_request(%Request{} = request) do
    Repo.delete(request)
  end

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

  ## Examples

      iex> change_request(request)
      %Ecto.Changeset{source: %Request{}}

  """
  def change_request(%Request{} = request) do
    Request.changeset(request, %{})
  end
end