# Pleroma: A lightweight social networking server
# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only

defmodule Mix.Tasks.Pleroma.DatabaseTest do
  use Pleroma.DataCase, async: true
  use Oban.Testing, repo: Pleroma.Repo

  alias Pleroma.Activity
  alias Pleroma.Object
  alias Pleroma.Repo
  alias Pleroma.User
  alias Pleroma.Web.CommonAPI

  import Pleroma.Factory

  setup_all do
    Mix.shell(Mix.Shell.Process)

    on_exit(fn ->
      Mix.shell(Mix.Shell.IO)
    end)

    :ok
  end

  describe "running remove_embedded_objects" do
    test "it replaces objects with references" do
      user = insert(:user)
      {:ok, activity} = CommonAPI.post(user, %{status: "test"})
      new_data = Map.put(activity.data, "object", activity.object.data)

      {:ok, activity} =
        activity
        |> Activity.change(%{data: new_data})
        |> Repo.update()

      assert is_map(activity.data["object"])

      Mix.Tasks.Pleroma.Database.run(["remove_embedded_objects"])

      activity = Activity.get_by_id_with_object(activity.id)
      assert is_binary(activity.data["object"])
    end
  end

  describe "prune_objects" do
    test "it prunes old objects from the database" do
      insert(:note)
      deadline = Pleroma.Config.get([:instance, :remote_post_retention_days]) + 1

      date =
        Timex.now()
        |> Timex.shift(days: -deadline)
        |> Timex.to_naive_datetime()
        |> NaiveDateTime.truncate(:second)

      %{id: id} =
        :note
        |> insert()
        |> Ecto.Changeset.change(%{inserted_at: date})
        |> Repo.update!()

      assert length(Repo.all(Object)) == 2

      Mix.Tasks.Pleroma.Database.run(["prune_objects"])

      assert length(Repo.all(Object)) == 1
      refute Object.get_by_id(id)
    end

    test "with the --keep-threads option it still keeps non-old threads even with no local interactions" do
      remote_user = insert(:user, local: false)
      remote_user2 = insert(:user, local: false)

      {:ok, remote_post_activity} =
        CommonAPI.post(remote_user, %{status: "some thing", local: false})

      {:ok, remote_post_reply_activity} =
        CommonAPI.post(remote_user2, %{
          status: "some reply",
          in_reply_to_status_id: remote_post_activity.id
        })

      remote_post_activity
      |> Ecto.Changeset.change(%{local: false})
      |> Repo.update!()

      remote_post_reply_activity
      |> Ecto.Changeset.change(%{local: false})
      |> Repo.update!()

      assert length(Repo.all(Object)) == 2

      Mix.Tasks.Pleroma.Database.run(["prune_objects", "--keep-threads"])

      assert length(Repo.all(Object)) == 2
    end

    test "with the --keep-threads option it deletes old threads with no local interaction" do
      deadline = Pleroma.Config.get([:instance, :remote_post_retention_days]) + 1

      old_insert_date =
        Timex.now()
        |> Timex.shift(days: -deadline)
        |> Timex.to_naive_datetime()
        |> NaiveDateTime.truncate(:second)

      remote_user = insert(:user, local: false)
      remote_user2 = insert(:user, local: false)

      {:ok, old_remote_post_activity} =
        CommonAPI.post(remote_user, %{status: "some thing", local: false})

      old_remote_post_activity
      |> Ecto.Changeset.change(%{local: false, updated_at: old_insert_date})
      |> Repo.update!()

      {:ok, old_remote_post_reply_activity} =
        CommonAPI.post(remote_user2, %{
          status: "some reply",
          in_reply_to_status_id: old_remote_post_activity.id
        })

      old_remote_post_reply_activity
      |> Ecto.Changeset.change(%{local: false, updated_at: old_insert_date})
      |> Repo.update!()

      {:ok, old_favourite_activity} =
        CommonAPI.favorite(remote_user2, old_remote_post_activity.id)

      old_favourite_activity
      |> Ecto.Changeset.change(%{local: false, updated_at: old_insert_date})
      |> Repo.update!()

      {:ok, old_repeat_activity} = CommonAPI.repeat(old_remote_post_activity.id, remote_user2)

      old_repeat_activity
      |> Ecto.Changeset.change(%{local: false, updated_at: old_insert_date})
      |> Repo.update!()

      assert length(Repo.all(Object)) == 2

      Mix.Tasks.Pleroma.Database.run(["prune_objects", "--keep-threads"])

      assert Repo.all(Object) == []
    end

    test "with the --keep-threads option it keeps old threads with local interaction" do
      deadline = Pleroma.Config.get([:instance, :remote_post_retention_days]) + 1

      old_insert_date =
        Timex.now()
        |> Timex.shift(days: -deadline)
        |> Timex.to_naive_datetime()
        |> NaiveDateTime.truncate(:second)

      remote_user = insert(:user, local: false)
      local_user = insert(:user, local: true)

      # local reply
      {:ok, old_remote_post1_activity} =
        CommonAPI.post(remote_user, %{status: "some thing", local: false})

      old_remote_post1_activity
      |> Ecto.Changeset.change(%{local: false, updated_at: old_insert_date})
      |> Repo.update!()

      {:ok, old_local_post2_reply_activity} =
        CommonAPI.post(local_user, %{
          status: "some reply",
          in_reply_to_status_id: old_remote_post1_activity.id
        })

      old_local_post2_reply_activity
      |> Ecto.Changeset.change(%{local: true, updated_at: old_insert_date})
      |> Repo.update!()

      # local Like
      {:ok, old_remote_post3_activity} =
        CommonAPI.post(remote_user, %{status: "some thing", local: false})

      old_remote_post3_activity
      |> Ecto.Changeset.change(%{local: false, updated_at: old_insert_date})
      |> Repo.update!()

      {:ok, old_favourite_activity} = CommonAPI.favorite(local_user, old_remote_post3_activity.id)

      old_favourite_activity
      |> Ecto.Changeset.change(%{local: true, updated_at: old_insert_date})
      |> Repo.update!()

      # local Announce
      {:ok, old_remote_post4_activity} =
        CommonAPI.post(remote_user, %{status: "some thing", local: false})

      old_remote_post4_activity
      |> Ecto.Changeset.change(%{local: false, updated_at: old_insert_date})
      |> Repo.update!()

      {:ok, old_repeat_activity} = CommonAPI.repeat(old_remote_post4_activity.id, local_user)

      old_repeat_activity
      |> Ecto.Changeset.change(%{local: true, updated_at: old_insert_date})
      |> Repo.update!()

      assert length(Repo.all(Object)) == 4

      Mix.Tasks.Pleroma.Database.run(["prune_objects", "--keep-threads"])

      assert length(Repo.all(Object)) == 4
    end

    test "with the --keep-threads option it keeps old threads with bookmarked posts" do
      deadline = Pleroma.Config.get([:instance, :remote_post_retention_days]) + 1

      old_insert_date =
        Timex.now()
        |> Timex.shift(days: -deadline)
        |> Timex.to_naive_datetime()
        |> NaiveDateTime.truncate(:second)

      remote_user = insert(:user, local: false)
      local_user = insert(:user, local: true)

      {:ok, old_remote_post_activity} =
        CommonAPI.post(remote_user, %{status: "some thing", local: false})

      old_remote_post_activity
      |> Ecto.Changeset.change(%{local: false, updated_at: old_insert_date})
      |> Repo.update!()

      Pleroma.Bookmark.create(local_user.id, old_remote_post_activity.id)

      assert length(Repo.all(Object)) == 1

      Mix.Tasks.Pleroma.Database.run(["prune_objects", "--keep-threads"])

      assert length(Repo.all(Object)) == 1
    end
  end

  describe "running update_users_following_followers_counts" do
    test "following and followers count are updated" do
      [user, user2] = insert_pair(:user)
      {:ok, %User{} = user, _user2} = User.follow(user, user2)

      following = User.following(user)

      assert length(following) == 2
      assert user.follower_count == 0

      {:ok, user} =
        user
        |> Ecto.Changeset.change(%{follower_count: 3})
        |> Repo.update()

      assert user.follower_count == 3

      assert {:ok, :ok} ==
               Mix.Tasks.Pleroma.Database.run(["update_users_following_followers_counts"])

      user = User.get_by_id(user.id)

      assert length(User.following(user)) == 2
      assert user.follower_count == 0
    end
  end

  describe "running fix_likes_collections" do
    test "it turns OrderedCollection likes into empty arrays" do
      [user, user2] = insert_pair(:user)

      {:ok, %{id: id, object: object}} = CommonAPI.post(user, %{status: "test"})
      {:ok, %{object: object2}} = CommonAPI.post(user, %{status: "test test"})

      CommonAPI.favorite(user2, id)

      likes = %{
        "first" =>
          "http://mastodon.example.org/objects/dbdbc507-52c8-490d-9b7c-1e1d52e5c132/likes?page=1",
        "id" => "http://mastodon.example.org/objects/dbdbc507-52c8-490d-9b7c-1e1d52e5c132/likes",
        "totalItems" => 3,
        "type" => "OrderedCollection"
      }

      new_data = Map.put(object2.data, "likes", likes)

      object2
      |> Ecto.Changeset.change(%{data: new_data})
      |> Repo.update()

      assert length(Object.get_by_id(object.id).data["likes"]) == 1
      assert is_map(Object.get_by_id(object2.id).data["likes"])

      assert :ok == Mix.Tasks.Pleroma.Database.run(["fix_likes_collections"])

      assert length(Object.get_by_id(object.id).data["likes"]) == 1
      assert Enum.empty?(Object.get_by_id(object2.id).data["likes"])
    end
  end

  describe "ensure_expiration" do
    test "it adds to expiration old statuses" do
      activity1 = insert(:note_activity)

      {:ok, inserted_at, 0} = DateTime.from_iso8601("2015-01-23T23:50:07Z")
      activity2 = insert(:note_activity, %{inserted_at: inserted_at})

      %{id: activity_id3} = insert(:note_activity)

      expires_at = DateTime.add(DateTime.utc_now(), 60 * 61)

      Pleroma.Workers.PurgeExpiredActivity.enqueue(%{
        activity_id: activity_id3,
        expires_at: expires_at
      })

      Mix.Tasks.Pleroma.Database.run(["ensure_expiration"])

      assert_enqueued(
        worker: Pleroma.Workers.PurgeExpiredActivity,
        args: %{activity_id: activity1.id},
        scheduled_at:
          activity1.inserted_at
          |> DateTime.from_naive!("Etc/UTC")
          |> Timex.shift(days: 365)
      )

      assert_enqueued(
        worker: Pleroma.Workers.PurgeExpiredActivity,
        args: %{activity_id: activity2.id},
        scheduled_at:
          activity2.inserted_at
          |> DateTime.from_naive!("Etc/UTC")
          |> Timex.shift(days: 365)
      )

      assert_enqueued(
        worker: Pleroma.Workers.PurgeExpiredActivity,
        args: %{activity_id: activity_id3},
        scheduled_at: expires_at
      )
    end
  end
end