defmodule Mobilizon.Service.MetadataTest do
  alias Mobilizon.Actors.Actor
  alias Mobilizon.Discussions.Comment
  alias Mobilizon.Events.Event
  alias Mobilizon.Posts.Post
  alias Mobilizon.Service.Metadata
  alias Mobilizon.Tombstone
  alias Mobilizon.Web.Endpoint
  alias Mobilizon.Web.Router.Helpers, as: Routes
  use Mobilizon.DataCase
  import Mobilizon.Factory

  describe "build_tags/2 for an actor" do
    test "that is a group gives tags" do
      %Actor{} = group = insert(:group, name: "My group")

      assert group |> Metadata.build_tags() |> Metadata.Utils.stringify_tags() ==
               String.trim("""
               <meta content="#{group.name} (@#{group.preferred_username})" property="og:title"><meta content="#{group.url}" property="og:url"><meta content="The event organizer didn&#39;t add any description." property="og:description"><meta content="profile" property="og:type"><meta content="#{group.preferred_username}" property="profile:username"><meta content="summary" property="twitter:card"><meta content="#{group.avatar.url}" property="og:image"><script type="application/ld+json">{"@context":"http://schema.org","@type":"Organization","address":null,"name":"#{group.name}","url":"#{group.url}"}</script><link href="#{Routes.feed_url(Endpoint, :actor, group.preferred_username, "atom")}" rel="alternate" title="#{group.name}'s feed" type="application/atom+xml"><link href="#{Routes.feed_url(Endpoint, :actor, group.preferred_username, "ics")}" rel="alternate" title="#{group.name}'s feed" type="text/calendar">
               """)

      assert group
             |> Map.put(:avatar, nil)
             |> Metadata.build_tags()
             |> Metadata.Utils.stringify_tags() ==
               String.trim("""
               <meta content="#{group.name} (@#{group.preferred_username})" property="og:title"><meta content="#{group.url}" property="og:url"><meta content="The event organizer didn&#39;t add any description." property="og:description"><meta content="profile" property="og:type"><meta content="#{group.preferred_username}" property="profile:username"><meta content="summary" property="twitter:card"><script type="application/ld+json">{"@context":"http://schema.org","@type":"Organization","address":null,"name":"#{group.name}","url":"#{group.url}"}</script><link href="#{Routes.feed_url(Endpoint, :actor, group.preferred_username, "atom")}" rel="alternate" title="#{group.name}'s feed" type="application/atom+xml"><link href="#{Routes.feed_url(Endpoint, :actor, group.preferred_username, "ics")}" rel="alternate" title="#{group.name}'s feed" type="text/calendar">
               """)
    end

    test "that is not a group doesn't give anything" do
      %Actor{} = person = insert(:actor)

      assert person |> Metadata.build_tags() |> Metadata.Utils.stringify_tags() == ""
      assert person |> Metadata.build_tags("fr") |> Metadata.Utils.stringify_tags() == ""
    end
  end

  describe "build_tags/2 for an event" do
    test "gives tags" do
      alias Mobilizon.Web.Endpoint

      %Event{} = event = insert(:event)

      # Because the description in Schema.org data is double-escaped
      a = "\n"
      b = "\\n"

      assert event
             |> Metadata.build_tags()
             |> Metadata.Utils.stringify_tags() ==
               String.trim("""
               <title>#{event.title} - Mobilizon</title><meta content="#{event.description}" name="description"><meta content="#{event.title}" property="og:title"><meta content="#{event.url}" property="og:url"><meta content="#{event.description}" property="og:description"><meta content="website" property="og:type"><link href="#{event.url}" rel="canonical"><meta content="#{event.picture.file.url}" property="og:image"><meta content="summary_large_image" property="twitter:card"><script type="application/ld+json">{"@context":"https://schema.org","@type":"Event","description":"#{String.replace(event.description, a, b)}","endDate":"#{DateTime.to_iso8601(event.ends_on)}","eventStatus":"https://schema.org/EventScheduled","image":["#{event.picture.file.url}"],"location":{"@type":"Place","address":{"@type":"PostalAddress","addressCountry":"My Country","addressLocality":"My Locality","addressRegion":"My Region","postalCode":"My Postal Code","streetAddress":"My Street Address"},"name":"#{event.physical_address.description}"},"name":"#{event.title}","organizer":{"@type":"Person","name":"#{event.organizer_actor.preferred_username}"},"performer":{"@type":"Person","name":"#{event.organizer_actor.preferred_username}"},"startDate":"#{DateTime.to_iso8601(event.begins_on)}"}</script>
               """)

      assert event
             |> Map.put(:picture, nil)
             |> Metadata.build_tags()
             |> Metadata.Utils.stringify_tags() ==
               String.trim("""
               <title>#{event.title} - Mobilizon</title><meta content="#{event.description}" name="description"><meta content="#{event.title}" property="og:title"><meta content="#{event.url}" property="og:url"><meta content="#{event.description}" property="og:description"><meta content="website" property="og:type"><link href="#{event.url}" rel="canonical"><meta content="summary_large_image" property="twitter:card"><script type="application/ld+json">{"@context":"https://schema.org","@type":"Event","description":"#{String.replace(event.description, a, b)}","endDate":"#{DateTime.to_iso8601(event.ends_on)}","eventStatus":"https://schema.org/EventScheduled","image":["#{"#{Endpoint.url()}/img/mobilizon_default_card.png"}"],"location":{"@type":"Place","address":{"@type":"PostalAddress","addressCountry":"My Country","addressLocality":"My Locality","addressRegion":"My Region","postalCode":"My Postal Code","streetAddress":"My Street Address"},"name":"#{event.physical_address.description}"},"name":"#{event.title}","organizer":{"@type":"Person","name":"#{event.organizer_actor.preferred_username}"},"performer":{"@type":"Person","name":"#{event.organizer_actor.preferred_username}"},"startDate":"#{DateTime.to_iso8601(event.begins_on)}"}</script>
               """)
    end
  end

  describe "build_tags/2 for a post" do
    test "gives tags" do
      %Post{} = post = insert(:post)

      assert post
             |> Metadata.build_tags()
             |> Metadata.Utils.stringify_tags() ==
               String.trim("""
               <meta content="#{post.title}" property="og:title"><meta content="#{post.url}" property="og:url"><meta content="#{Metadata.Utils.process_description(post.body)}" property="og:description"><meta content="article" property="og:type"><meta content="summary" property="twitter:card"><link href="#{post.url}" rel="canonical"><meta content="#{post.picture.file.url}" property="og:image"><meta content="summary_large_image" property="twitter:card"><script type="application/ld+json">{"@context":"https://schema.org","@type":"Article","author":{"@type":"Organization","name":"#{post.attributed_to.preferred_username}"},"dateModified":"#{DateTime.to_iso8601(post.updated_at)}","datePublished":"#{DateTime.to_iso8601(post.publish_at)}","name":"My Awesome article"}</script>
               """)
    end
  end

  describe "build_tags/2 for a comment" do
    test "gives tags" do
      %Comment{} = comment = insert(:comment)

      assert comment
             |> Metadata.build_tags()
             |> Metadata.Utils.stringify_tags() ==
               String.trim("""
               <meta content="#{comment.actor.preferred_username}" property="og:title"><meta content="#{comment.url}" property="og:url"><meta content="#{comment.text}" property="og:description"><meta content="website" property="og:type"><meta content="summary" property="twitter:card">
               """)
    end
  end

  describe "build_tags/2 for a tombstone" do
    test "gives nothing" do
      %Tombstone{} = tombstone = insert(:tombstone)

      assert tombstone
             |> Metadata.build_tags()
             |> Metadata.Utils.stringify_tags() == ""
    end
  end
end