# -*- coding:utf-8 -*-

import logging
import config
import tools
import jieba
import datetime
import mmap

TITLE = "关键词表 生成"


def main():
    
    # 日志配置初始化
    tools.init_log()
    tools.log_start_msg(TITLE)

    with open(config.MERGE_FILE, "r", encoding=config.ENCODING_CHARSET) as fmerge, \
        open(config.KEY_FILE, "w", encoding=config.ENCODING_CHARSET) as fw, \
        mmap.mmap(fmerge.fileno(), 0, access=mmap.ACCESS_READ) as fmmap:

        # TODO 
        # 这里可能有IO优化的余地
        # 这里可以不用mmap，改用一条一条readline()进行读取
        # 进度提示也不完整

            count = -1
            total_num = fmmap.size()

            while True:
                count = count + 1
                # 读取关键词
                word = fmmap.readline().decode("UTF-8").replace("\r","").replace("\n","")

                # 读取不到任何内容结束执行
                if not word :
                    break
                
                # 分词
                word_root = list(jieba.cut_for_search(word))

                # 写入文件中
                fw.write("%d,%s,%s\n"%(count,word,word_root))

                # 进度提示
                tools.tip(total_num, fmmap.tell(), False)

    tools.log_end_msg(TITLE)

if __name__ == '__main__':
    main()