from copy import deepcopy

# import docing
import json
import lxml.etree as etree
#from lxml.builder import ElementMaker

# from nitpo import Nitpo
# from sheets import Sheets
from webenv import Webenv
# from web import Web
from kolar import Kolar
from fecha import Fecha


# # variables we set at the start and then pass to the server
preps = {}

# web = Web()
## called requests
kolar = Kolar()
## fetched requests
fecha = Fecha()

def on_starting(server):
    # app.logger.info("Starting Server")
    # out_file = open('/tmp/logo.out', 'w')
    # out_file.write('start')
    webenv = Webenv()
    global preps
    preps = webenv.prepare()
    # out_file.write(str(preps))
    # out_file.close()
    # out_file.close()

def app(environ, start_response):
    raw_uri = environ['RAW_URI']
    if preps['res']['called_url'].match(raw_uri):
        output = kolar.output(environ, preps)
        return html(output, start_response)
    out_dict = fecha.output(environ, preps)
    # # if this is not a correct request, false is return
    if not any(out_dict):
        error = url_error(environ)
        return html(error, start_response)
    # # ok response with json
    data = json.dumps(out_dict).encode() + b'\n'
    start_response("200 OK", [
        ("Cache-Control", 'no-cache, no-store, must-revalidate'),
        ("Access-Control-Allow-Origin", '*'),
        ("Content-Type", 'application/json'),
        ("Content-Length", str(len(data)))
    ])
    return iter([data])


def html(out, start_response):
    data = out.encode()
    start_response("200 OK", [
        ("Cache-Control", 'no-cache, no-store, must-revalidate'),
        ("Content-Type", 'text/html'),
        ("Content-Length", str(len(data)))
    ])
    return iter([data])


def url_error(env):
    raw_uri = env['RAW_URI']
    ## full_uri for reporting
    full_uri = raw_uri
    web_ele = deepcopy(preps['web_ele'])
    if raw_uri.startswith('//'):
        # # add the pathstart
        full_uri = pathstart() + '/' + raw_uri[2:]
    web_ele.attrib['raw_uri'] = raw_uri
    # if not self.preps['res']['url_u'].match(raw_uri):
    web_ele.attrib['status'] = '400'
    web_ele.attrib['error'] = 'wrong_url'
    web_ele.attrib['arger'] = full_uri
    # self.logbug('bad url ' + full_uri)
    # self.logbug(self.preps['res']['url'])
    web_doc = etree.ElementTree(web_ele)
    string = str(preps['sheets']['web'](web_doc))
    return string

def pathstart():
    out = ''
    if 'web' in preps['conf']:
        if 'pathstart' in preps['conf']['web']:
            out += preps['conf']['web']['pathstart']
    return out