module CensorBear
  class CheckText
    include Logger
    attr_accessor :content, :data_id, :type, :options

    # 灰产常用正则规则
    QQ_REG = /(?:[加茄qQ企鹅号码\s]{1,}|[群号]{1,}|[叩叩]{1,}|[抠抠]{1,}|[扣扣]{1,})(?:[\u4e00-\u9eff]*)(?:[:，：]?)([\d\s]{6,})/
    WX_REG = /(?:[加+微＋+➕薇？vV威卫星♥❤姓xX信]{2,}|weixin|weix)(?:[，❤️.\s]?)(?:[\u4e00-\u9eff]?)(?:[:，：]?)([\w\s]{6,})/

    def initialize(content, data_id = nil, type = "ugc", options = {})
      @content = content
      @data_id = data_id
      @type = type

      # 可以没有 data_id, 因为不涉及到 callback
      if data_id.present?
        raise ParamsError, "data_id 格式错误 #{data_id}" unless TextDataId.valid?(data_id)
      end

      @options = options
    end

    def scan
      raise ParamsEmptyError if content.blank?

      cloud_check
    end

    def cloud_check
      return if options[:skip_cloud_check] == true

      if CensorBear.config.service == "aliyun"
        censor_bear_logger.debug("开始调用阿里云文本检测接口, 参数为 content = #{content}, data_id = #{data_id}")
        resp = ::AliyunGreen::Text.scan(content, data_id)
        censor_bear_logger.debug("阿里云文本检测接口返回结果为 #{resp}")

        d = parse_result(resp)

        TextResult.new(d[:review_flag], content, d[:filtered_content], d[:data_id], "aliyun", d[:raw_data])
      else
        censor_bear_logger.error("未知的服务商 #{CensorBear.config.service}")
      end
    end

    def parse_result(resp)
      self.class.parse_result resp
    end

    class << self
      def parse_result(resp)
        resp = resp.with_indifferent_access
        raise CloudCheckError if resp[:code].to_s != "200"
        review_flag = false

        data = resp.dig(:data)
        d = data.first
        r = d["results"].first

        # 当处理建议是 "block", "review"
        # TODO: 如果为了精准，可以根据 r[:rate] 调整 review_flag，排除法
        if r[:suggestion] != "pass"
          review_flag = true
        end

        {
          review_flag: review_flag,
          data_id: data.first[:dataId],
          content: data.first[:content],
          filtered_content: data.first[:filteredContent],
          suggestion: r[:suggestion],
          raw_data: resp,
        }
      end
    end
  end
end