module PullRequestsHelper

  # 获取diff内容行号
  def diff_line_num content
    content.scan(/@@ -(\d+),\d+ \+\d+,\d+ @@/).first.nil? ? "" : content.scan(/@@ -(\d+),\d+ \+\d+,\d+ @@/).first.join("").to_i
  end

  # 处理内容
  def diff_content content
    content.gsub!(/.*@@ -\d+,\d+ \+\d+,\d+ @@\n/m,'')
  end

  def get_user_name user_id
    User.find(user_id).try(:login)
  end

  # 获取接受PullRequest用户的信息
  def accept_user pull_request_id
    PullRequest.where(:pull_request_id => pull_request_id).first
  end

  def get_state state
    case state
      when "open","reopened"
        l(:label_state_open)
      when "closed"
        l(:label_state_closed)
      when "merged"
        l(:label_state_merged)
    end
  end

  def type_count type, requests_opened_count, requests_merged_count, requests_closed_count
    case type
      when nil, "1"
        requests_opened_count
      when "2"
        requests_merged_count
      when "3"
        requests_closed_count
    end
  end

  # 获取pull request文件类型
  def get_type_of_file change
    if change['new_file']
      "pullreques_icons_new"
    elsif change['deleted_file']
      "pullreques_icons_del"
    else
      "pullreques_icons_add"
    end
  end

  # 判断是否允许创建Pull Request
  # 如果分支相同，并且项目相同则提示
  def judge_pr_allow

  end

  # 获取统计数
  def request_commonts_count request_id, gpid
    g = Gitlab.client
    comments_count = g.merge_request_comments(gpid, request_id).count
  end

  # 通过状态获取样式
  def pr_status_css status
    case status
      when "opened", "reopened"
        "pullreques_blueicon"
      when "merged"
        "pullreques_greyicon"
      when "closed"
        "pullreques_greyicon02"
    end
  end

end