from collections import defaultdict
from functools import cached_property

from flask.wrappers import Request

from authlib.oauth2.rfc6749 import JsonPayload
from authlib.oauth2.rfc6749 import JsonRequest
from authlib.oauth2.rfc6749 import OAuth2Payload
from authlib.oauth2.rfc6749 import OAuth2Request


class FlaskOAuth2Payload(OAuth2Payload):
    def __init__(self, request: Request):
        self._request = request

    @property
    def data(self):
        return self._request.values

    @cached_property
    def datalist(self):
        values = defaultdict(list)
        for k in self.data:
            values[k].extend(self.data.getlist(k))
        return values


class FlaskOAuth2Request(OAuth2Request):
    def __init__(self, request: Request):
        super().__init__(request.method, request.url, request.headers)
        self._request = request
        self.payload = FlaskOAuth2Payload(request)

    @property
    def args(self):
        return self._request.args

    @property
    def form(self):
        return self._request.form


class FlaskJsonPayload(JsonPayload):
    def __init__(self, request: Request):
        self._request = request

    @property
    def data(self):
        return self._request.get_json()


class FlaskJsonRequest(JsonRequest):
    def __init__(self, request: Request):
        super().__init__(request.method, request.url, request.headers)
        self.payload = FlaskJsonPayload(request)