shopify

defmodule Shopify.Adapters.Mock do
  @moduledoc false

  @behaviour Shopify.Adapters.Base

  alias Shopify.{Request, Response}

  def get(request) do
    request
      |> authorize
      |> respond
  end

  def post(request) do
    request
      |> authorize
      |> respond
  end

  def put(request) do
    request
      |> authorize
      |> respond
  end

  def delete(request) do
    auth = request |> authorize
    case auth do
      {:passed, _} -> Response.new(200, nil, request.resource)
      {:failed, _} -> respond(auth)
    end
  end

  def respond({:failed, request}) do
    Response.new(401, nil, request.resource)
  end

  def respond({:passed, request}) do
    request
      |> load_resource
      |> respond(request)
  end

  def respond({:ok, body},  request)  do
    Response.new(200, body, request.resource)
  end

  def respond({:error, _}, request)  do
    Response.new(404, nil, request.resource)
  end

  def load_resource(%Request{path: path, body: nil}) do
    Path.expand("../../../test/fixtures/#{path}", __DIR__)
      |> File.read
  end

  def load_resource(%Request{body: body}) do
    {:ok, body}
  end

  def authorize(request) do
    if request.headers[:"X-Shopify-Access-Token"] do
      request |> oauth_auth
    else
      request |> basic_auth
    end
  end

  def basic_auth(request) do
    case URI.parse(request.full_url) do
      %URI{userinfo: "test:test"} -> {:passed, request}
      %URI{userinfo: _} -> {:failed, request}
    end
  end

  def oauth_auth(_) do
    
  end
end