Introduce group basic federation, event new page and notifications

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

lib/mobilizon/todos/todos.ex

@@ -0,0 +1,109 @@
+defmodule Mobilizon.Todos do
+  @moduledoc """
+  The Todos context.
+  """
+  alias Mobilizon.Actors.Actor
+  alias Mobilizon.Storage.{Page, Repo}
+  alias Mobilizon.Todos.{Todo, TodoList}
+  import Ecto.Query
+
+  @doc """
+  Get a todo list by it's ID
+  """
+  @spec get_todo_list(integer | String.t()) :: TodoList.t() | nil
+  def get_todo_list(id), do: Repo.get(TodoList, id)
+
+  @doc """
+  Get a todo list by it's URL
+  """
+  @spec get_todo_list_by_url(String.t()) :: TodoList.t() | nil
+  def get_todo_list_by_url(url), do: Repo.get_by(TodoList, url: url)
+
+  @doc """
+  Returns the list of todo lists for a group.
+  """
+  @spec get_todo_lists_for_group(Actor.t(), integer | nil, integer | nil) :: Page.t()
+  def get_todo_lists_for_group(%Actor{id: group_id, type: :Group}, page \\ nil, limit \\ nil) do
+    TodoList
+    |> where(actor_id: ^group_id)
+    |> order_by(desc: :updated_at)
+    |> Page.build_page(page, limit)
+  end
+
+  @doc """
+  Returns the list of todos for a group.
+  """
+  @spec get_todos_for_todo_list(TodoList.t(), integer | nil, integer | nil) :: Page.t()
+  def get_todos_for_todo_list(%TodoList{id: todo_list_id}, page \\ nil, limit \\ nil) do
+    Todo
+    |> where(todo_list_id: ^todo_list_id)
+    |> order_by(asc: :status)
+    # |> order_by(desc: :updated_at)
+    |> Page.build_page(page, limit)
+  end
+
+  @doc """
+  Creates a todo list.
+  """
+  @spec create_todo_list(map) :: {:ok, TodoList.t()} | {:error, Ecto.Changeset.t()}
+  def create_todo_list(attrs \\ %{}) do
+    %TodoList{}
+    |> TodoList.changeset(attrs)
+    |> Repo.insert()
+  end
+
+  @doc """
+  Updates a todo list.
+  """
+  @spec update_todo_list(TodoList.t(), map) ::
+          {:ok, TodoList.t()} | {:error, Ecto.Changeset.t()}
+  def update_todo_list(%TodoList{} = todo_list, attrs) do
+    todo_list
+    |> TodoList.changeset(attrs)
+    |> Repo.update()
+  end
+
+  @doc """
+  Deletes a todo list
+  """
+  @spec delete_todo_list(TodoList.t()) :: {:ok, TodoList.t()} | {:error, Ecto.Changeset.t()}
+  def delete_todo_list(%TodoList{} = todo_list), do: Repo.delete(todo_list)
+
+  @doc """
+  Get a todo by it's ID
+  """
+  @spec get_todo(integer | String.t()) :: Todo.t() | nil
+  def get_todo(id), do: Repo.get(Todo, id)
+
+  @doc """
+  Get a todo by it's URL
+  """
+  @spec get_todo_by_url(String.t()) :: Todo.t() | nil
+  def get_todo_by_url(url), do: Repo.get_by(Todo, url: url)
+
+  @doc """
+  Creates a todo.
+  """
+  @spec create_todo(map) :: {:ok, Todo.t()} | {:error, Ecto.Changeset.t()}
+  def create_todo(attrs \\ %{}) do
+    %Todo{}
+    |> Todo.changeset(attrs)
+    |> Repo.insert()
+  end
+
+  @doc """
+  Updates a todo.
+  """
+  @spec update_todo(Todo.t(), map) :: {:ok, Todo.t()} | {:error, Ecto.Changeset.t()}
+  def update_todo(%Todo{} = todo, attrs) do
+    todo
+    |> Todo.changeset(attrs)
+    |> Repo.update()
+  end
+
+  @doc """
+  Deletes a todo
+  """
+  @spec delete_todo(Todo.t()) :: {:ok, Todo.t()} | {:error, Ecto.Changeset.t()}
+  def delete_todo(%Todo{} = todo), do: Repo.delete(todo)
+end