#-- copyright
# OpenProject is a project management system.
# Copyright (C) 2012-2018 the OpenProject Foundation (OPF)
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License version 3.
#
# OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
# Copyright (C) 2006-2017 Jean-Philippe Lang
# Copyright (C) 2010-2013 the ChiliProject Team
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
#
# See docs/COPYRIGHT.rdoc for more details.
#++

require 'spec_helper'

DEVELOPER_PERMISSIONS = [:view_messages, :delete_own_messages, :edit_own_messages, :add_project, :edit_project, :select_project_modules, :manage_members, :manage_versions, :manage_categories, :view_work_packages, :add_work_packages, :edit_work_packages, :manage_work_package_relations, :manage_subtasks, :add_work_package_notes, :move_work_packages, :delete_work_packages, :view_work_package_watchers, :add_work_package_watchers, :delete_work_package_watchers, :manage_public_queries, :save_queries, :view_gantt, :view_calendar, :log_time, :view_time_entries, :edit_time_entries, :delete_time_entries, :manage_news, :comment_news, :view_documents, :manage_documents, :view_wiki_pages, :export_wiki_pages, :view_wiki_edits, :edit_wiki_pages, :delete_wiki_pages_attachments, :protect_wiki_pages, :delete_wiki_pages, :rename_wiki_pages, :add_messages, :edit_messages, :delete_messages, :manage_forums, :view_files, :manage_files, :browse_repository, :manage_repository, :view_changesets, :manage_project_activities, :export_work_packages]

describe MailHandler, type: :model do
  let(:anno_user) { User.anonymous }
  let(:project) { FactoryBot.create(:valid_project, identifier: 'onlinestore', name: 'OnlineStore', is_public: false) }
  let(:priority_low) { FactoryBot.create(:priority_low, is_default: true) }

  before do
    allow(Setting).to receive(:notified_events).and_return(Redmine::Notifiable.all.map(&:name))
    # we need both of these run first so the anonymous user is created and
    # there is a default work package priority to save any work packages
    priority_low
    anno_user
  end

  after do
    User.current = nil
    allow(Setting).to receive(:default_language).and_return('en')
  end

  it 'should add a work_package by create user on public project' do
    Role.non_member.update_attribute :permissions, [:add_work_packages]
    project.update_attribute :is_public, true
    expect {
      work_package = submit_email('ticket_by_unknown_user.eml', issue: { project: 'onlinestore' }, unknown_user: 'create')
      work_package_created(work_package)
      expect(work_package.author.active?).to be_truthy
      expect(work_package.author.mail).to eq('john.doe@somenet.foo')
      expect(work_package.author.firstname).to eq('John')
      expect(work_package.author.lastname).to eq('Doe')

      # account information
      email = ActionMailer::Base.deliveries.first
      expect(email).not_to be_nil
      expect(email.subject).to eq(I18n.t('mail_subject_register', value: Setting.app_title))
      login = email.body.encoded.match(/\* Username: (\S+)\s?$/)[1]
      password = email.body.encoded.match(/\* Password: (\S+)\s?$/)[1]

      # Can't log in here since randomly assigned password must be changed
      found_user = User.find_by_login(login)
      expect(work_package.author).to eq(found_user)
      expect(found_user.check_password?(password)).to be_truthy
    }.to change(User, :count).by(1)
  end

  describe 'update work package' do
    let!(:mail_user) { FactoryBot.create :admin, mail: 'user@example.org' }
    let!(:work_package) { FactoryBot.create :work_package, project: project }

    before do
      # Avoid trying to extract text
      allow(OpenProject::Database).to receive(:allows_tsv?).and_return false
    end

    it 'should update a work package with attachment' do
      expect(WorkPackage).to receive(:find_by).with(id: 123).and_return(work_package)

      # Mail with two attachemnts, one of which is skipped by signature.asc filename match
      submit_email 'update_ticket_with_attachment_and_sig.eml', issue: { project: 'onlinestore' }

      work_package.reload

      # Expect comment
      expect(work_package.journals.last.notes).to eq 'Reply to work package #123'
      expect(work_package.journals.last.user).to eq mail_user

      # Expect filename without signature to be saved
      expect(work_package.attachments.count).to eq(1)
      expect(work_package.attachments.first.filename).to eq('Photo25.jpg')
    end

    context 'with existing attachment' do
      let!(:attachment) { FactoryBot.create(:attachment, container: work_package) }

      it 'does not replace it (Regression #29722)' do
        work_package.reload
        expect(WorkPackage).to receive(:find_by).with(id: 123).and_return(work_package)

        # Mail with two attachemnts, one of which is skipped by signature.asc filename match
        submit_email 'update_ticket_with_attachment_and_sig.eml', issue: { project: 'onlinestore' }

        expect(work_package.attachments.length).to eq 2
      end
    end
  end

  describe '#category' do
    let!(:category) { FactoryBot.create :category, project: project, name: 'Foobar' }

    it 'should add a work_package with category' do
      allow(Setting).to receive(:default_language).and_return('en')
      Role.non_member.update_attribute :permissions, [:add_work_packages]
      project.update_attribute :is_public, true

      work_package = submit_email 'ticket_with_category.eml',
                                  issue: { project: 'onlinestore' },
                                  allow_override: ['category'],
                                  unknown_user: 'create'
      work_package_created(work_package)
      expect(work_package.category).to eq(category)
    end
  end

  describe '#cleanup_body' do
    let(:input) { "Subject:foo\nDescription:bar\n" \
                  ">>> myserver.example.org 2016-01-27 15:56 >>>\n... (Email-Body) ..." }
    let(:handler) { MailHandler.send :new }

    context 'with regex delimiter' do
      before do
        allow(Setting).to receive(:mail_handler_body_delimiter_regex).and_return('>>>.+?>>>.*')
        allow(handler).to receive(:plain_text_body).and_return(input)
        expect(handler).to receive(:cleaned_up_text_body).and_call_original
      end

      it 'removes the irrelevant lines' do
        expect(handler.send(:cleaned_up_text_body)).to eq("Subject:foo\nDescription:bar")
      end
    end
  end

  private

  FIXTURES_PATH = File.dirname(__FILE__) + '/../fixtures/mail_handler'

  def submit_email(filename, options = {})
    raw = IO.read(File.join(FIXTURES_PATH, filename))
    MailHandler.receive(raw, options)
  end

  def work_package_created(work_package)
    expect(work_package.is_a?(WorkPackage)).to be_truthy
    expect(work_package).not_to be_new_record
    work_package.reload
  end
end