# standard imports
import json
import logging
import os
import sys
import uuid
from os import path
from urllib.parse import parse_qsl, urlparse

import redis
from cic_eth.api.api_task import Api
from cic_eth.server.UWSGIOpenAPIRequest import UWSGIOpenAPIRequest
from openapi_core import create_spec
from openapi_core.validation.request.datatypes import OpenAPIRequest
from openapi_core.validation.request.validators import RequestValidator
from openapi_spec_validator.schemas import read_yaml_file
from werkzeug.wrappers import Request
from cic_eth.server.celery_helper import call
spec_dict = read_yaml_file(path.join(path.dirname(
    __file__), '../../server/openapi/server.yaml'))
spec = create_spec(spec_dict)


logging.basicConfig(level=logging.WARNING)
logg = logging.getLogger()




# uwsgi application


def application(env, start_response):
    print(spec)
    request = Request(env)
    oAPIRequest = UWSGIOpenAPIRequest(request)
    validator = RequestValidator(spec)
    result = validator.validate(oAPIRequest)

    # raise errors if request invalid
    # result.raise_for_errors()
    if result.errors:
        # get list of errors
        json_data = json.dumps(list(map(lambda e: str(e), result.errors)))
        content = json_data.encode('utf-8')
        headers = []
        headers.append(('Content-Length', str(len(content))),)
        headers.append(('Access-Control-Allow-Origin', '*',))
        headers.append(('Content-Type', 'application/json',))
        start_response('400 Invalid Request', headers)
        return [content]
    parsed_url = urlparse(env.get('REQUEST_URI'))  # /api
    path = parsed_url.path
    parsed_url.params
    params = dict(parse_qsl(parsed_url.query))
    if path == '/list':
        address = params.get('address')
        print('address', address)
        # address, limit=10, external_task=None, external_queue=None
        data = call('list', address)
    elif path == '/balance':
        data = call('balance', **params)
    elif path == '/create_account':
        data = call('create_account', **params)
    elif path == '/ping':
        data = call('ping', **params)
    elif path == '/transfer':
        data = call('transfer', **params)
    elif path == '/transfer_from':
        data = call('transfer_from', **params)
    elif path == '/token':
        data = call('token', **params)
    elif path == '/tokens':
        data = call('tokens', **params)
    elif path == '/default_token':
        data = call('default_token', )


    json_data = json.dumps(data)
    content = json_data.encode('utf-8')
    headers = []
    headers.append(('Content-Length', str(len(content))),)
    headers.append(('Access-Control-Allow-Origin', '*',))
    headers.append(('Content-Type', 'application/json',))
    start_response('200 OK', headers)

    return [content]