defmodule Pivo do
  @moduledoc """
  Interface to Pivotal's Tracker API.
  """

  alias Pivo.{ActionRouter, TrackerAPI}
  alias Pivo.Resources.Comment

  @doc """
  Deletes a comment.
  """
  def destroy_comment(project_id, story_id, comment_id)
      when is_integer(project_id) and is_integer(story_id) and is_integer(comment_id) do
    Comment
    |> ActionRouter.destroy(
      path_params: [project_id: project_id, story_id: story_id, comment_id: comment_id]
    )
    |> TrackerAPI.request()
  end

  @doc """
  Gets a comment.
  """
  def fetch_comment(project_id, story_id, comment_id)
      when is_integer(project_id) and is_integer(story_id) and is_integer(comment_id) do
    Comment
    |> ActionRouter.fetch(
      path_params: [project_id: project_id, story_id: story_id, comment_id: comment_id]
    )
    |> TrackerAPI.request()
  end

  @doc """
  Updates a comment.
  """
  def update_comment(project_id, story_id, comment_id, update_map)
      when is_integer(project_id) and is_integer(story_id) and is_integer(comment_id) and
             is_map(update_map) do
    Comment
    |> ActionRouter.update(update_map,
      path_params: [project_id: project_id, story_id: story_id, comment_id: comment_id]
    )
    |> TrackerAPI.request()
  end

  @doc """
  Add a new comment.
  """
  def create_comment(project_id, story_id, create_map)
      when is_integer(project_id) and is_integer(story_id) and is_map(create_map) do
    Comment
    |> ActionRouter.create(create_map, path_params: [project_id: project_id, story_id: story_id])
    |> TrackerAPI.request()
  end

  @doc """
  Returns the specified story's comments.
  """
  def get_selected_comments(project_id, story_id)
      when is_integer(project_id) and is_integer(story_id) do
    Comment
    |> ActionRouter.get_selected(path_params: [project_id: project_id, story_id: story_id])
    |> TrackerAPI.request()
  end

  alias Pivo.Resources.Me

  @doc """
  Returns information from the user's profile plus the list of projects to which the user has access.
  """
  def fetch_me do
    Me
    |> ActionRouter.fetch()
    |> TrackerAPI.request()
  end

  @doc """
  Update the person's personal settings and return their profile and list of projects.
  """
  def update_me(update_map) when is_map(update_map) do
    Me
    |> ActionRouter.update(update_map)
    |> TrackerAPI.request()
  end

  alias Pivo.Resources.Project

  @doc """
  Permanently delete the specified project.
  """
  def destroy_project(id) when is_integer(id) do
    Project
    |> ActionRouter.destroy(path_params: [project_id: id])
    |> TrackerAPI.request()
  end

  @doc """
  Fetch the content of the specified project.
  """
  def fetch_project(id) when is_integer(id) do
    Project
    |> ActionRouter.fetch(path_params: [project_id: id])
    |> TrackerAPI.request()
  end

  @doc """
  Update the specified project.
  """
  def update_project(id, update_map) when is_integer(id) and is_map(update_map) do
    Project
    |> ActionRouter.update(update_map, path_params: [project_id: id])
    |> TrackerAPI.request()
  end

  @doc """
  Create a new empty project.
  """
  def create_project(create_map) when is_map(create_map) do
    Project
    |> ActionRouter.create(create_map)
    |> TrackerAPI.request()
  end

  @doc """
  Get all of a user's active projects.
  """
  def get_all_projects do
    Project
    |> ActionRouter.get_all()
    |> TrackerAPI.request()
  end

  alias Pivo.Resources.Story

  @doc """
  Deletes a story.
  """
  def destroy_story(project_id, story_id) when is_integer(project_id) and is_integer(story_id) do
    Story
    |> ActionRouter.destroy(path_params: [project_id: project_id, story_id: story_id])
    |> TrackerAPI.request()
  end

  @doc """
  Returns the specified story.
  """
  def fetch_story(project_id, story_id) when is_integer(project_id) and is_integer(story_id) do
    Story
    |> ActionRouter.fetch(path_params: [project_id: project_id, story_id: story_id])
    |> TrackerAPI.request()
  end

  @doc """
  Updates a story.
  """
  def update_story(project_id, story_id, update_map)
      when is_integer(project_id) and is_integer(story_id) and is_map(update_map) do
    Story
    |> ActionRouter.update(update_map, path_params: [project_id: project_id, story_id: story_id])
    |> TrackerAPI.request()
  end

  @doc """
  Create a new story.
  """
  def create_story(project_id, create_map) when is_integer(project_id) and is_map(create_map) do
    Story
    |> ActionRouter.create(create_map, path_params: [project_id: project_id])
    |> TrackerAPI.request()
  end

  @doc """
  Provides selected stories. (Paginated)
  """
  def get_paginated_stories(project_id) when is_integer(project_id) do
    Story
    |> ActionRouter.get_paginated(path_params: [project_id: project_id])
    |> TrackerAPI.request()
  end
end