# Pleroma: A lightweight social networking server
# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only

defmodule Pleroma.Web.RichMedia.Parser.TTL.AwsSignedUrlTest do
  use Pleroma.DataCase, async: false
  use Oban.Testing, repo: Pleroma.Repo

  import Mox

  alias Pleroma.UnstubbedConfigMock, as: ConfigMock
  alias Pleroma.Web.RichMedia.Card

  setup do
    ConfigMock
    |> stub_with(Pleroma.Test.StaticConfig)

    clear_config([:rich_media, :enabled], true)

    :ok
  end

  test "s3 signed url is parsed correct for expiration time" do
    url = "https://pleroma.social/amz"

    {:ok, timestamp} =
      Timex.now()
      |> DateTime.truncate(:second)
      |> Timex.format("{ISO:Basic:Z}")

    # in seconds
    valid_till = 30

    metadata = construct_metadata(timestamp, valid_till, url)

    expire_time =
      Timex.parse!(timestamp, "{ISO:Basic:Z}") |> Timex.to_unix() |> Kernel.+(valid_till)

    assert expire_time == Pleroma.Web.RichMedia.Parser.TTL.AwsSignedUrl.ttl(metadata, url)
  end

  test "s3 signed url is parsed and correct ttl is set for rich media" do
    url = "https://pleroma.social/amz"

    {:ok, timestamp} =
      Timex.now()
      |> DateTime.truncate(:second)
      |> Timex.format("{ISO:Basic:Z}")

    # in seconds
    valid_till = 30

    metadata = construct_metadata(timestamp, valid_till, url)

    body = """
    <meta name="twitter:card" content="Pleroma" />
    <meta name="twitter:site" content="Pleroma" />
    <meta name="twitter:title" content="Pleroma" />
    <meta name="twitter:description" content="Pleroma" />
    <meta name="twitter:image" content="#{Map.get(metadata, "image")}" />
    """

    Tesla.Mock.mock(fn
      %{
        method: :get,
        url: ^url
      } ->
        %Tesla.Env{status: 200, body: body}

      %{method: :head} ->
        %Tesla.Env{status: 200}
    end)

    Card.get_or_backfill_by_url(url)

    assert_enqueued(worker: Pleroma.Workers.RichMediaExpirationWorker, args: %{"url" => url})

    [%Oban.Job{scheduled_at: scheduled_at}] = all_enqueued()

    timestamp_dt = Timex.parse!(timestamp, "{ISO:Basic:Z}")

    assert DateTime.diff(scheduled_at, timestamp_dt) == valid_till
  end

  defp construct_s3_url(timestamp, valid_till) do
    "https://pleroma.s3.ap-southeast-1.amazonaws.com/sachin%20%281%29%20_a%20-%25%2Aasdasd%20BNN%20bnnn%20.png?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAIBLWWK6RGDQXDLJQ%2F20190716%2Fap-southeast-1%2Fs3%2Faws4_request&X-Amz-Date=#{timestamp}&X-Amz-Expires=#{valid_till}&X-Amz-Signature=04ffd6b98634f4b1bbabc62e0fac4879093cd54a6eed24fe8eb38e8369526bbf&X-Amz-SignedHeaders=host"
  end

  defp construct_metadata(timestamp, valid_till, url) do
    %{
      "image" => construct_s3_url(timestamp, valid_till),
      "site" => "Pleroma",
      "title" => "Pleroma",
      "description" => "Pleroma",
      "url" => url
    }
  end
end