shopify_app.ex

@doc """
Creates a new shop if no shop with the given shopify_domain exists, or updates
the existing shop

## Examples

  iex> create_or_update_shop(%{shopify_domain: "shop@my_shopify.com", shopify_token: "a-token"})
  {:ok, %Shop{}}

  iex> create_or_update_shop(%{shopify_domain: nil, shopify_token: "a-token"})
  {:error, %Ecto.Changeset{}}
"""
def create_or_update_shop(%{shopify_domain: shopify_domain, shopify_token: _} = args) do
  case find_shop_by(%{shopify_domain: shopify_domain}) do
    nil -> create_shop(args)
    shop -> update_shop(shop, args)
  end
end

def create_or_update_shop(args) do
  create_shop(args)
end

alias Useless.EctoQueries.ShopQuery
@doc """
Finds a shop by given arguments.

Returns nil if non found.

## Examples

  iex> find_shop_by(%{shopify_domain: "an-existing-domain@myshopify.com"})
  %Shop{}

  iex> find_shop_by(%{shopify_domain: "does-not-exist"})
  nil
"""
def find_shop_by(args) do
  Shop
  |> ShopQuery.query_shopify_domain(args)
  |> Repo.one()
end