#import copy
#import os
#import sys
#import base64
#import hashlib

import re
import docing
import filing
import lxml.etree as etree
from lxml.builder import ElementMaker

from nitpo import Nitpo
from sheets import Sheets

class Webenv(Nitpo):

    def __init__(self, do_verbose=False):
        """web class"""
        super().__init__()
        self.N = "{%s}" % self.const['ns']
        self.E = ElementMaker(nsmap={None: self.const['ns']})
        self.env = None
        self.sheets = Sheets()
        self.do_verbose = do_verbose

    def prepare(self):
        """this is the stuff we prepare at start of server"""
        preps = {}
        preps['web_sheet'] = self.sheets.return_sheet('web')
        # # compiled regular expressions
        res = {}
        surid = r'[-_0-9a-zA-Z]{22}'
        res['surid'] = re.compile(surid)
        ## kept for legaci
        res['url_u'] = re.compile(r'//u/' + surid)
        res['url_w'] = re.compile(r'//w/' + surid)
        res['url'] = re.compile(r'//[uw]/' + surid)
        res['main_param_name'] = re.compile(r'[A-Z_]+')
        preps['res'] = res
        # # maximum requests for a faild kisu to relead vakis
        preps['const'] = {}
        preps['count_reload_vakis'] = {}
        if not self.has_conf('files', 'vakis'):
            raise Exception("webenv needs a vakis file.")
        preps['vakis'] = filing.load(self.conf['files']['vakis'])
        return preps