class DeveloperAndContributors
  @@reactorHandler = ReactorHandler.new
  @@mergeRepository = MergeRepository.new
  @@dependencyHandler = DependencyHandler.new
  def findCommonDevelopers(project_directory_path,tagName)
    developerList =  generateMasterDeveloperList(project_directory_path,tagName)
    commonList = commonDeveloperorContributors(project_directory_path,tagName,developerList)
    return commonList
  end

  def generateMasterDeveloperList(project_directory_path,tagName)
    childPomPathArr = @@reactorHandler.fetchGidArtifactIdAndVersionFromChildModule(project_directory_path,false)
    developerList = Array.new
    childPomPathArr.each do |eachChildModule|
      child_pom_document = Nokogiri::XML(open(eachChildModule))
      child_pom_document.css("project/#{tagName}").each do |eachChildRepo|
        emailNode =  eachChildRepo.at("email")
        email=nil
        if (!emailNode.nil? and !developerList.include?emailNode.text)
          developerList.push(emailNode.text)
        end
      end
    end
    return developerList
  end

  def commonDeveloperorContributors(project_directory_path,tagName,developerList)
    commonList = Array.new
    pomArr =  @@reactorHandler.fetchGidArtifactIdAndVersionFromChildModule(project_directory_path,false)
    if  !(pomArr.nil? || pomArr.empty?)
      developerList.each do |eachDeveloper|
        flag = true
        pomArr.each do |eachPomPath|
          if (flag)
            flag=false
            pom_document =  @@reactorHandler.parse_xml_from_file(eachPomPath)
            pom_document.css("project/#{tagName}").each do |eachChildRepo|
              if (!eachChildRepo.at("email").nil?)
                email= eachChildRepo.at("email").text
                if (eachDeveloper==email)
                  flag = true
                end
              end
            end
            if flag
              if (!commonList.include?eachDeveloper)
                commonList.push(eachDeveloper)
              end
            else
              commonList.delete(eachDeveloper)
            end
          end
        end
      end
    end
    return commonList
  end

  def mergeDeveloperAndContributors(project_directory_path,commontags,tagName)
    childPomPathArr = @@reactorHandler.fetchGidArtifactIdAndVersionFromChildModule(project_directory_path,false)
    developersAndContributorsList = Array.new
    emailList = Array.new
    childPomPathArr.each do |eachChildModule|
      child_pom_document = Nokogiri::XML(open(eachChildModule))
      child_pom_document.css("project/#{tagName}").each do |eachChildRepo|
        emailNode =  eachChildRepo.at("email")
        if !emailNode.nil?
          email = emailNode.text
          if (commontags.include?email and !emailList.include?email)
            emailList.push(email)
            developersAndContributorsList.push(eachChildRepo)
          end
        end
      end
    end
    return developersAndContributorsList
  end

  def addDeveloperAndContributersInReator(project_directory_path,commontags,tagName)
if (!commontags.nil? and !commontags.empty?)
    @@mergeRepository.addRepoIntoReactorPom(project_directory_path,commontags,tagName)
     puts "Added developers and contributors"
end
 
  end

  def removeCommonDevelopersAndContributorsFromChild(project_directory_path,commontags,tagName)
    childPomPathArr = @@reactorHandler.fetchGidArtifactIdAndVersionFromChildModule(project_directory_path,false)
    childPomPathArr.each do |eachChildModule|
      child_pom_document = Nokogiri::XML(open(eachChildModule))
      tagArr = tagName.split("/")
      baseName =  tagArr[0]
      lastTag = tagArr[1]
      baseNode = child_pom_document.at("project/#{baseName}")
      if (!baseNode.nil?)
        baseNode.css(lastTag).each do |eachChildRepo|
          emailNode =  eachChildRepo.at("email")
          if !emailNode.nil?
            email = emailNode.text
            if (commontags.include?email)
              eachChildRepo.remove
            end
          end
        end
        pom_nokogiri = @@dependencyHandler.add_node_element('project', baseNode, child_pom_document)
        File.write(eachChildModule, pom_nokogiri)
      end
    end
  end

  def removeEmptyTags(project_directory_path,tagName)
    childPomPathArr = @@reactorHandler.fetchGidArtifactIdAndVersionFromChildModule(project_directory_path,false)
    childPomPathArr.each do |eachChildModule|
      child_pom_document = Nokogiri::XML(open(eachChildModule))
      tagArr = tagName.split("/")
      baseName =  tagArr[0]
      lastTag = tagArr[1]
      baseNode = child_pom_document.at("project/#{baseName}")
      if (!baseNode.nil?)
        lastNode = baseNode.at(lastTag)
        if (lastNode.nil?)
          baseNode.remove
          File.write(eachChildModule, child_pom_document)
        end
      end
    end
    puts "Removed Common #{tagName}"
  end
end