require 'fileutils'
require 'json'

require_relative '../build/check'
require_relative '../license/analyzer'
require_relative '../license/collector'
require_relative '../license/uploader'
require_relative '../util'

namespace :license do
  desc "Check licenses of bundled softwares"
  task :check do
    Gitlab::Util.section('license:check') do
      install_dir = File.open('config/projects/gitlab.rb').grep(/install_dir *'/)[0].match(/install_dir[ \t]*'(?<install_dir>.*)'/)['install_dir']
      raise StandardError, "Unable to retrieve install_dir, thus unable to check #{install_dir}/dependency_licenses.json" unless File.exist?(install_dir)

      puts "Checking licenses via the contents of '#{install_dir}/dependency_licenses.json'"
      raise StandardError, "Unable to open #{install_dir}/dependency_licenses.json" unless File.exist?("#{install_dir}/dependency_licenses.json")

      json_data = JSON.parse(File.read("#{install_dir}/dependency_licenses.json"))

      puts "###### BEGIN LICENSE CHECK ######"
      violations = License::Analyzer.analyze(json_data)

      unless violations.empty?
        puts "\n\nProblematic softwares: #{violations.count}"
        violations.each do |violation|
          puts violation
        end
        puts "\n\n"
        raise "Build Aborted due to license violations"
      end
      puts "###### END LICENSE CHECK ######"
    end
  end

  desc "Generate license file of current release and push to AWS bucket"
  task :upload do
    Gitlab::Util.section('license:upload') do
      # This is done on Ubuntu 18.04 non-rc tag pipeline only
      License::Uploader.new.execute unless Build::Check.is_rc_tag?
    end
  end

  desc "Collect all license files and generate index page"
  task :generate_pages do
    Gitlab::Util.section('license:generate_pages') do
      License::Collector.new.execute
    end
  end
end