# frozen_string_literal: true

#  Copyright (c) 2022, Hitobito AG. This file is part of
#  hitobito and licensed under the Affero General Public License version 3
#  or later. See the COPYING file at the top-level directory or at
#  https://github.com/hitobito/hitobito.

require "spec_helper"

describe Healthz::MailController do
  include Mails::ImapMailsSpecHelper

  describe "GET show" do
    let(:json) { JSON.parse(response.body) }
    let(:token) { AppStatus.auth_token }
    let(:imap_mail) { build_imap_mail }
    let(:cache) { Rails.cache }
    let(:seen_mail) { AppStatus::Mail::SeenMail.build(imap_mail) }

    before { cache.write(:app_status, nil) }
    after { cache.write(:app_status, nil) }

    let(:imap_connector) { double(:imap_connector) }

    before do
      allow_any_instance_of(AppStatus::Mail).to receive(:imap).and_return(imap_connector)
    end

    context "when there is no problem with mail services" do
      it "has HTTP status 200" do
        eleven_minutes_ago = DateTime.now - 11.minutes

        seen_mail.first_seen = eleven_minutes_ago
        app_status = {seen_mails: [seen_mail]}
        cache.write(:app_status, app_status)

        expect(imap_connector)
          .to receive(:fetch_mails)
          .with(:inbox)
          .and_return([imap_mail])

        get :show, params: {token: token}

        expect(response.status).to eq(200)

        expect(json).to eq("app_status" => {"code" => "ok", "details" => {"catch_all_inbox" => "ok"}})
      end
    end

    context "when the mail services are not working properly" do
      it "has HTTP status 503" do
        one_hour_ago = DateTime.now - 1.hour

        seen_mail.first_seen = one_hour_ago
        app_status = {seen_mails: [seen_mail]}
        cache.write(:app_status, app_status)

        expect(imap_connector)
          .to receive(:fetch_mails)
          .with(:inbox)
          .and_return([imap_mail])

        get :show, params: {token: token}

        expect(response.status).to eq(503)

        expect(json).to eq("app_status" => {"code" => "service_unavailable",
                                            # rubocop:todo Layout/LineLength
                                            "details" => {"catch_all_inbox" => "catch-all mailbox contains overdue mails. please make sure delayed job worker is running and no e-mail is blocking the queue/job."}})
        # rubocop:enable Layout/LineLength
      end
    end

    context "auth token" do
      it "denies access if no auth token given" do
        get :show

        expect(response.status).to eq(401)
      end

      it "denies access if wrong auth token given" do
        get :show, params: {token: "wrong token"}

        expect(response.status).to eq(401)
      end
    end
  end
end
