# -*- encoding: utf-8 -*-

# @author : vincent.benoit@benserv.fr
# @brief : info routes

#########################################################
# Importation de modules externes                       #

import sys, re, os
import logging as log
from datetime import datetime, timezone

from flask import Flask, Blueprint, request, abort, jsonify, current_app
from flask_api import status
from flask_jwt_extended import create_access_token
from flask_jwt_extended import get_jwt
from flask_jwt_extended import set_access_cookies
from flask_jwt_extended import get_jwt_identity
from flask_jwt_extended import jwt_required

import json

from werkzeug.exceptions import HTTPException

#########################################################
# Class et Methods                                      #

info = Blueprint('info', __name__, url_prefix='/api/configurateur')

@info.errorhandler(HTTPException)
def handle_exception(e):
    ''' return JSON instead of HTML for HTTP errors '''
    response = e.get_response()
    # replace the body with JSON
    response.data = json.dumps({
        'code': e.code,
        'name': e.name,
        'description': e.description,
        })
    response.content_type = "application/json"
    return response

@info.after_request
def refresh_expiring_tokens(response):
    ''' Using an 'after_request' callback, we refresh any token that is within
        30 minutes of expiring.'''
    try:
        exp_timestamp = get_jwt()['exp']
        now = datetime.now(timezone.utc)
        target_timestamp = datetime.timestamp(now + current_app.config['DELTA'])
        if target_timestamp > exp_timestamp:
            current_app.logger.warning("On doit recréer un token ....")
            access_token = create_access_token(identity=get_jwt_identity())
            # refresh token in storage place
            if os.path.exists(os.path.join("/tmp", current_app.config['PROJECT'])):
                with open(os.path.join("/tmp", current_app.config['PROJECT'], get_jwt_identity()['id']), 'w') as f:
                    f.write(access_token)
            # Modifiy a Flask Response to set a cookie containing the access JWT.
            set_access_cookies(response, access_token)
        return response
    except (RuntimeError, KeyError):
        return response

@info.route('/infos', methods=['GET'])
@jwt_required()
def get_infos():
    ''' Retreive informations '''
    # Access the identity of the current user with get_jwt_identity
    current_user = get_jwt_identity()
    content = {}
    # load data from JSON database
    with open(current_app.config['DB_PATH'], 'r') as f:
        data = json.load(f)
    content['manufacturer'] = data['INFOS']['manufacturer']
    content['operator'] = data['INFOS']['control']['operator']
    content['provider'] = data['INFOS']['control']['service_provider']
    content['signal_dbm'] = data['INFOS']['control']['signal_dbm']
    content['signal_qos'] = data['INFOS']['control']['signal_qos']
    content['sim_inserted'] = data['INFOS']['control']['sim_inserted']
    content['call_ready'] = data['INFOS']['control']['call_ready']
    return jsonify(content), status.HTTP_200_OK