gistfile1.txt

defmodule Providers.Gmail do
  @moduledoc """
  API access to Gmail services.
  https://developers.google.com/gmail/api/guides/
  """

  # """
  # Base API endpoint for our requests
  # """
  @base_url "https://www.googleapis.com/gmail/v1"

  # """
  # Gmail scopes from least to most sensitive.
  # https://developers.google.com/gmail/api/auth/scopes
  # """
  @scopes [
    "https://www.googleapis.com/auth/gmail.labels",
    "https://www.googleapis.com/auth/gmail.insert",
    "https://www.googleapis.com/auth/gmail.metadata",
    "https://www.googleapis.com/auth/gmail.settings.basic"
  ]

  def request_access() do
    # do auth stuff
    # @scopes
  end

  @doc """
  Creates a filter.
  """
  def create_filter(client, email, filter) do
    url = "users/" <> email <> "/settings/filters"
    Tesla.post(client, url, filter)
  end

  @doc """
  Deletes a filter.
  """
  def delete_filter(client, email, id) do
    url = "users/" <> email <> "/settings/filters" <> id
    Tesla.delete!(client, url)
  end

  @doc """
  Gets a filter.
  """
  def get_filter(client, email, id) do
    url = "users/" <> email <> "/settings/filters" <> id
    Tesla.get(client, url)
  end

  @doc """
  Lists the message filters of a Gmail user.
  """
  def list_filters(client, email) do
    url = "users/" <> email <> "/settings/filters"
    Tesla.get(client, url)
  end

  # build dynamic client based on runtime arguments
  def client(token) do
    middleware = [
      Tesla.Middleware.JSON,
      {Tesla.Middleware.BaseUrl, @base_url},
      {Tesla.Middleware.Headers, [{"authorization", "token: " <> token}]},
    ]

    Tesla.client(middleware)
  end
end