import functools
import json
import os
import os.path

from flask import Flask


app = None
cache_path = None


def init(namespace):
    global app
    global cache_path

    app = Flask(namespace)
    cache_path = os.path.join(os.getcwd(), 'cache')


def jsonify(view):
    def wrapped_view(*args, **kwargs):
        response = view(*args, **kwargs)
        status_code = 200

        # contains http response code
        if type(response) is tuple and len(response) == 2 and \
                type(response[1]) is int:
            response, status_code = response

        if type(response) is not str:
            response = json.dumps(response)

        response = app.make_response(response)
        response.mimetype = 'application/json'
        response.status_code = status_code
        return response

    functools.update_wrapper(wrapped_view, view)
    return wrapped_view