defmodule FeedParser.Parser.AtomTest do
  use ExUnit.Case
  alias FeedParser.Parser.Atom
  doctest Atom

  test "matches atom feed" do
    data = File.read!("test/fixtures/atom/feed.xml")
    assert {true, _} = Atom.accepts(data, "application/atom+xml")
    assert {true, _} = Atom.accepts(data, "application/xml")
  end

  test "parses atom feed" do
    data = File.read!("test/fixtures/atom/feed.xml")
    {true, parsed_data} = Atom.accepts(data, "application/atom+xml")
    assert {:ok, %FeedParser.Feed{} = feed} = Atom.parse_feed(parsed_data)
    assert feed.site_url == "http://example.org/"
    assert feed.title == "Example Feed"
    assert feed.last_updated == ~U[2003-12-13 18:30:02Z]
    assert [%FeedParser.Item{} = item] = feed.items
    assert item.guid == "urn:uuid:1225c695-cfb8-4ebb-aaaa-80da344efa6a"
    assert item.title == "Atom-Powered Robots Run Amok"
    assert item.url == "http://example.org/2003/12/13/atom03"
    assert item.date == ~U[2003-12-13 18:30:02Z]
    assert item.creator == "John Doe"
    assert item.content == "Some text."
  end

  test "parses atom entry with multiple links" do
    data = File.read!("test/fixtures/atom/multi_url.xml")
    {true, parsed_data} = Atom.accepts(data, "application/atom+xml")
    {:ok, %FeedParser.Feed{} = feed} = Atom.parse_feed(parsed_data)
    [item] = feed.items

    assert item.url ==
             "https://techcrunch.com/2019/08/30/someone-hacked-jack-dorseys-own-twitter-account/"

    assert item.links == [
             {"https://techcrunch.com/2019/08/30/someone-hacked-jack-dorseys-own-twitter-account/",
              "alternate"},
             {"http://df4.us/rrx", "shorturl"},
             {"https://daringfireball.net/linked/2019/08/30/dorsey-twitter-account", "related"}
           ]
  end

  test "parses atom entry with multiple authors" do
    data = File.read!("test/fixtures/atom/multi_author.xml")
    {true, parsed_data} = Atom.accepts(data, "application/atom+xml")
    assert {:ok, %FeedParser.Feed{items: items}} = Atom.parse_feed(parsed_data)
    assert [%FeedParser.Item{creator: "John Doe, Jane Doe"}] = items
  end

  test "parses ato item with multiple authors" do
    data = File.read!("test/fixtures/atom/multi_author_item.xml")
    {true, parsed_data} = Atom.accepts(data, "application/atom+xml")
    assert {:ok, %FeedParser.Feed{items: items}} = Atom.parse_feed(parsed_data)
    assert [%FeedParser.Item{creator: "John Doe, Jane Doe"}] = items
  end
end