#-- encoding: UTF-8
#-- copyright
# OpenProject is a project management system.
# Copyright (C) 2012-2017 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 doc/COPYRIGHT.rdoc for more details.
#++

require 'benchmark'

When(/^I call the work_package\-api on project "(.*?)" requesting format "(.*?)" without any filters$/) do |project_name, format|
  @project = Project.find(project_name)
  @unfiltered_benchmark = Benchmark.measure('Unfiltered Results') do
    visit api_v2_project_planning_elements_path(project_id: project_name, format: format)
  end
end

Then(/^the json\-response should include (\d+) work package(s?)$/) do |number_of_wps, _plural|
  expect(work_package_names.size).to eql number_of_wps.to_i
end

Then(/^the json\-response should( not)? contain a work_package "(.*?)"$/) do |negation, work_package_name|
  if negation
    expect(work_package_names).not_to include work_package_name
  else
    expect(work_package_names).to include work_package_name
  end
end

And(/^the json\-response for work_package "(.*?)" should have the type "(.*?)"$/) do |work_package_name, type_name|
  type = ::Type.where(name: type_name).first
  work_package = lookup_work_package(work_package_name)
  expect(work_package['type_id']).to eql type.id
end

And(/^the json\-response for work_package "(.*?)" should have the responsible "(.*?)"$/) do |work_package_name, responsible_name|
  responsible = User.where(login: responsible_name).first
  work_package = lookup_work_package(work_package_name)
  expect(work_package['responsible_id']).to eql responsible.id
end
Then(/^the json\-response for work_package "(.*?)" should have the due_date "(.*?)"$/) do |work_package_name, due_date|
  work_package = lookup_work_package(work_package_name)
  expect(work_package['due_date']).to eql due_date.gsub('/', '-') # normalize the date-format
end

And(/^the json\-response should say that "(.*?)" is parent of "(.*?)"$/) do |parent_name, child_name|
  parent = WorkPackage.where(subject: parent_name).first
  child = lookup_work_package(child_name)
  expect(child['parent_id']).to eql parent.id
end

And(/^the json\-response should say that "(.*?)" has no parent$/) do |child_name|
  child = child = lookup_work_package(child_name)
  expect(child['parent']).to be_nil
end

And(/^the json\-response should say that "(.*?)" has (\d+) child(ren)?$/) do |parent_name, nr_of_children, _plural|
  parent = child = lookup_work_package(parent_name)
  expect(parent['child_ids'].size).to eql nr_of_children.to_i
end

And(/^the work package "(.*?)" has the due_date "(.*?)"$/) do |work_package_name, due_date|
  wp = WorkPackage.where(subject: work_package_name).first
  expect(wp.due_date).to eql Date.parse(due_date)
end

When(/^I call the work_package\-api on project "(.*?)" requesting format "(.*?)" filtering for status "(.*?)"$/) do |project_name, format, status_names|
  statuses = Status.where(name: status_names.split(','))

  get_filtered_json(project_name: project_name,
                    format: format,
                    filters: [:status_id],
                    operators:  { status_id: '=' },
                    values: { status_id: statuses.map(&:id) })
end

Then(/^I call the work_package\-api on project "(.*?)" requesting format "(.*?)" filtering for type "(.*?)"$/) do |project_name, format, type_names|
  types = Project.find_by(identifier: project_name).types.where(name: type_names.split(','))

  get_filtered_json(project_name: project_name,
                    format: format,
                    filters: [:type_id],
                    operators:  { type_id: '=' },
                    values: { type_id: types.map(&:id) })
end

When(/^I call the work_package\-api on project "(.*?)" requesting format "(.*?)" filtering for responsible "(.*?)"$/) do |project_name, format, responsible_names|
  responsibles = User.where(login: responsible_names.split(','))

  get_filtered_json(project_name: project_name,
                    format: format,
                    filters: [:responsible_id],
                    operators:  { responsible_id: '=' },
                    values: { responsible_id: responsibles.map(&:id) })
end

And(/^I call the work_package\-api on project "(.*?)" at time "(.*?)" and filter for types "(.*?)"$/) do |project_name, at_time, type_names|
  types = Project.find_by(identifier: project_name).types.where(name: type_names.split(','))

  get_filtered_json(project_name: project_name,
                    format: 'json',
                    filters: [:type_id],
                    operators:  { type_id: '=' },
                    values: { type_id: types.map(&:id) },
                    at_time: DateTime.parse(at_time).to_i)  # the api accepts the time as unix-timestamps(epoch)
end

And(/^there are (\d+) work packages of type "(.*?)" in project "(.*?)"$/) do |nr_of_wps, type_name, project_name|
  project = Project.find_by(identifier: project_name)
  type = project.types.find_by(name: type_name)

  FactoryGirl.create_list(:work_package, nr_of_wps.to_i, project: project, type: type)
end

And(/^the time to get the unfiltered results should not exceed (\d+)\.(\d+)s$/) do |seconds, milliseconds|
  puts '----Unfiltered Benchmark----'
  puts @unfiltered_benchmark
  @unfiltered_benchmark.total.should < "#{seconds}.#{milliseconds}".to_f
end

And(/^the time to get the filtered results should not exceed (\d+)\.(\d+)s$/) do |seconds, milliseconds|
  puts '----Filtered Benchmark----'
  puts @filtered_benchmark
  @filtered_benchmark.total.should < "#{seconds}.#{milliseconds}".to_f
end

Then(/^the time to get the filtered results should be faster than the time to get the unfiltered results$/) do
  @filtered_benchmark.total.should < @unfiltered_benchmark.total
end

def lookup_work_package(work_package_name)
  work_package = decoded_json['planning_elements'].find { |wp| wp['subject'] == work_package_name }
end

def work_package_names
  decoded_json['planning_elements'].map { |wp| wp['subject'] }
end

def decoded_json
  @decoded_json ||= ActiveSupport::JSON.decode last_json
end

def last_json
  page.source
end

def get_filtered_json(params)
  @filtered_benchmark = Benchmark.measure('Filtered Results') do
    visit api_v2_project_planning_elements_path(project_id: params[:project_name],
                                                format: params[:format],
                                                f: params[:filters],
                                                op: params[:operators],
                                                v: params[:values],
                                                at_time: params[:at_time])
  end
end