defmodule Plausible.Workers.ImportAnalyticsTest do
  use Plausible.DataCase
  use Bamboo.Test

  alias Plausible.Imported.SiteImport
  alias Plausible.Workers.ImportAnalytics

  require Plausible.Imported.SiteImport

  @moduletag capture_log: true

  describe "perform/1" do
    setup do
      %{
        import_opts: [
          start_date: Timex.today() |> Timex.shift(days: -7),
          end_date: Timex.today()
        ]
      }
    end

    test "updates site import after successful import", %{
      import_opts: import_opts
    } do
      user = insert(:user, trial_expiry_date: Timex.today() |> Timex.shift(days: 1))
      site = insert(:site, members: [user])

      {:ok, job} = Plausible.Imported.NoopImporter.new_import(site, user, import_opts)

      assert [%{status: SiteImport.pending()}] = Plausible.Imported.list_all_imports(site)

      # before_start callback triggered
      assert_received {:before_start, import_id}

      assert :ok =
               job
               |> Repo.reload!()
               |> ImportAnalytics.perform()

      assert [%{id: ^import_id, status: SiteImport.completed()}] =
               Plausible.Imported.list_all_imports(site)

      # on_success callback triggered
      assert_received {:on_success, ^import_id}
    end

    test "clears stats_start_date field for the site after successful import", %{
      import_opts: import_opts
    } do
      user = insert(:user, trial_expiry_date: Timex.today() |> Timex.shift(days: 1))
      site = insert(:site, members: [user], stats_start_date: ~D[2005-01-01])

      {:ok, job} = Plausible.Imported.NoopImporter.new_import(site, user, import_opts)

      assert :ok =
               job
               |> Repo.reload!()
               |> ImportAnalytics.perform()

      site = Repo.reload!(site)
      assert site.stats_start_date == nil
      assert Plausible.Sites.stats_start_date(site) == import_opts[:start_date]
      assert Repo.reload!(site).stats_start_date == import_opts[:start_date]
    end

    test "sends email to owner after successful import", %{import_opts: import_opts} do
      user = insert(:user, trial_expiry_date: Timex.today() |> Timex.shift(days: 1))
      site = insert(:site, members: [user])

      {:ok, job} = Plausible.Imported.NoopImporter.new_import(site, user, import_opts)

      assert :ok =
               job
               |> Repo.reload!()
               |> ImportAnalytics.perform()

      assert_email_delivered_with(
        to: [user],
        subject: "Noop data imported for #{site.domain}"
      )
    end

    test "send email after successful import only to the user who ran the import", %{
      import_opts: import_opts
    } do
      owner = insert(:user, trial_expiry_date: Timex.today() |> Timex.shift(days: 1))
      site = insert(:site, members: [owner])

      importing_user = insert(:user)

      insert(:site_membership, site: site, user: importing_user, role: :admin)

      {:ok, job} = Plausible.Imported.NoopImporter.new_import(site, importing_user, import_opts)

      assert :ok =
               job
               |> Repo.reload!()
               |> ImportAnalytics.perform()

      assert_email_delivered_with(
        to: [importing_user],
        subject: "Noop data imported for #{site.domain}"
      )

      refute_email_delivered_with(
        to: [owner],
        subject: "Noop data imported for #{site.domain}"
      )
    end

    test "updates site import record after failed import", %{import_opts: import_opts} do
      user = insert(:user, trial_expiry_date: Timex.today() |> Timex.shift(days: 1))
      site = insert(:site, members: [user])
      import_opts = Keyword.put(import_opts, :error, true)

      {:ok, job} = Plausible.Imported.NoopImporter.new_import(site, user, import_opts)

      assert {:discard, "Something went wrong"} =
               job
               |> Repo.reload!()
               |> ImportAnalytics.perform()

      assert [%{status: SiteImport.failed()}] = Plausible.Imported.list_all_imports(site)
    end

    test "clears any orphaned data during import", %{import_opts: import_opts} do
      user = insert(:user, trial_expiry_date: Timex.today() |> Timex.shift(days: 1))
      site = insert(:site, members: [user])
      import_opts = Keyword.put(import_opts, :error, true)

      {:ok, job} = Plausible.Imported.NoopImporter.new_import(site, user, import_opts)

      populate_stats(site, [
        build(:imported_visitors, import_id: job.args.import_id, pageviews: 10)
      ])

      assert {:discard, _} =
               job
               |> Repo.reload!()
               |> ImportAnalytics.perform()

      assert eventually(fn ->
               count = Plausible.Stats.Clickhouse.imported_pageview_count(site)
               {count == 0, count}
             end)

      # on_failure callback triggered
      assert_received {:on_failure, _import_id}
    end

    test "sends email to owner after failed import", %{import_opts: import_opts} do
      user = insert(:user, trial_expiry_date: Timex.today() |> Timex.shift(days: 1))
      site = insert(:site, members: [user])
      import_opts = Keyword.put(import_opts, :error, true)

      {:ok, job} = Plausible.Imported.NoopImporter.new_import(site, user, import_opts)

      assert {:discard, _} =
               job
               |> Repo.reload!()
               |> ImportAnalytics.perform()

      assert_email_delivered_with(
        to: [user],
        subject: "Noop import failed for #{site.domain}"
      )
    end

    test "sends email after failed import only to the user who ran the import", %{
      import_opts: import_opts
    } do
      owner = insert(:user, trial_expiry_date: Timex.today() |> Timex.shift(days: 1))
      site = insert(:site, members: [owner])
      import_opts = Keyword.put(import_opts, :error, true)

      importing_user = insert(:user)

      insert(:site_membership, site: site, user: importing_user, role: :admin)

      {:ok, job} = Plausible.Imported.NoopImporter.new_import(site, importing_user, import_opts)

      assert {:discard, _} =
               job
               |> Repo.reload!()
               |> ImportAnalytics.perform()

      assert_email_delivered_with(
        to: [importing_user],
        subject: "Noop import failed for #{site.domain}"
      )

      refute_email_delivered_with(
        to: [owner],
        subject: "Noop import failed for #{site.domain}"
      )
    end
  end

  describe "perform/1 notifications" do
    setup do
      on_exit(fn ->
        Ecto.Adapters.SQL.Sandbox.unboxed_run(Plausible.Repo, fn ->
          Repo.delete_all(Plausible.Site)
          Repo.delete_all(Plausible.Auth.User)
          Repo.delete_all(Oban.Job)
        end)

        :ok
      end)

      %{
        import_opts: [
          start_date: Timex.today() |> Timex.shift(days: -7),
          end_date: Timex.today()
        ]
      }
    end

    test "sends oban notification to calling process on completion when instructed", %{
      import_opts: import_opts
    } do
      Ecto.Adapters.SQL.Sandbox.unboxed_run(Plausible.Repo, fn ->
        user = insert(:user, trial_expiry_date: Timex.today() |> Timex.shift(days: 1))
        site = insert(:site, members: [user])
        site_id = site.id
        import_opts = Keyword.put(import_opts, :listen?, true)

        {:ok, job} = Plausible.Imported.NoopImporter.new_import(site, user, import_opts)
        import_id = job.args[:import_id]

        job
        |> Repo.reload!()
        |> ImportAnalytics.perform()

        assert_receive {:notification, :analytics_imports_jobs,
                        %{"event" => "complete", "import_id" => ^import_id, "site_id" => ^site_id}}
      end)
    end

    test "sends oban notification to calling process on permanent failure when instructed", %{
      import_opts: import_opts
    } do
      Ecto.Adapters.SQL.Sandbox.unboxed_run(Plausible.Repo, fn ->
        user = insert(:user, trial_expiry_date: Timex.today() |> Timex.shift(days: 1))
        site = insert(:site, members: [user])
        site_id = site.id

        import_opts =
          import_opts
          |> Keyword.put(:listen?, true)
          |> Keyword.put(:error, true)

        {:ok, job} = Plausible.Imported.NoopImporter.new_import(site, user, import_opts)
        import_id = job.args[:import_id]

        job
        |> Repo.reload!()
        |> ImportAnalytics.perform()

        assert_receive {:notification, :analytics_imports_jobs,
                        %{"event" => "fail", "import_id" => ^import_id, "site_id" => ^site_id}}
      end)
    end

    test "sends oban notification to calling process on transient failure when instructed", %{
      import_opts: import_opts
    } do
      Ecto.Adapters.SQL.Sandbox.unboxed_run(Plausible.Repo, fn ->
        user = insert(:user, trial_expiry_date: Timex.today() |> Timex.shift(days: 1))
        site = insert(:site, members: [user])
        site_id = site.id

        import_opts =
          import_opts
          |> Keyword.put(:listen?, true)
          |> Keyword.put(:crash, true)

        {:ok, job} = Plausible.Imported.NoopImporter.new_import(site, user, import_opts)
        import_id = job.args[:import_id]

        site_import = Repo.get(Plausible.Imported.SiteImport, import_id)

        # emulate oban error handler
        try do
          job
          |> Repo.reload!()
          |> ImportAnalytics.perform()
        rescue
          _ -> ImportAnalytics.import_fail_transient(site_import)
        end

        assert_receive {:notification, :analytics_imports_jobs,
                        %{
                          "event" => "transient_fail",
                          "import_id" => ^import_id,
                          "site_id" => ^site_id
                        }}
      end)
    end

    test "sends oban notification to calling process on completion when listener setup separately",
         %{
           import_opts: import_opts
         } do
      Ecto.Adapters.SQL.Sandbox.unboxed_run(Plausible.Repo, fn ->
        user = insert(:user, trial_expiry_date: Timex.today() |> Timex.shift(days: 1))
        site = insert(:site, members: [user])
        site_id = site.id

        {:ok, job} = Plausible.Imported.NoopImporter.new_import(site, user, import_opts)
        import_id = job.args[:import_id]

        :ok = Plausible.Imported.Importer.listen()

        job
        |> Repo.reload!()
        |> ImportAnalytics.perform()

        assert_receive {:notification, :analytics_imports_jobs,
                        %{"event" => "complete", "import_id" => ^import_id, "site_id" => ^site_id}}
      end)
    end
  end
end