import random
import string
from dataclasses import dataclass
from urllib.parse import quote_plus, urlparse

import requests
from aws_lambda_powertools.event_handler.exceptions import BadRequestError
from glom import glom

from config import KONVIVA_API_URL, KONVIVA_SECRET_KEY

ALU = 2
GES = 3


headers = {
    'Authorization': f'KONVIVA {KONVIVA_SECRET_KEY}',
    'Content-Type': 'application/json',
}


def random_str(maxlen: int = 10) -> str:
    """Returns a random string of letters."""
    return ''.join(random.choice(string.ascii_letters) for _ in range(maxlen))


class KonvivaError(BadRequestError):
    pass


class EmailAlreadyExists(KonvivaError):
    pass


@dataclass(frozen=True)
class User:
    IDUsuario: int
    Identificador: str
    NomeUsuario: str
    Email: str
    CPF: str | None = None


def create_user(
    id: str,
    name: str,
    email: str,
    cpf: str | None,
) -> dict:
    url = urlparse(KONVIVA_API_URL)._replace(
        path='/action/api/integrarUsuario',
        query='sendMail=false',
    )

    r = requests.post(
        url=url.geturl(),
        headers=headers,
        json={
            'Identificador': id,
            'NomeUsuario': name,
            'Login': email,
            'Email': email,
            'CPF': cpf,
            'Senha': random_str(30),
            'Situacao': 'ATIVO',
            'UnidadesPerfil': [
                {
                    'IDPerfil': ALU,
                    'CODPerfil': 'ALU',
                    'CODUnidade': '1380e6d0-fee8-4cb9-9bf0-a087e703b1a4',
                }
            ],
        },
    )
    r.raise_for_status()

    # Because Konviva does not return the proper HTTP status code
    if err := glom(r.json(), 'errors', default=None):
        err = err[0] if isinstance(err, list) else err
        raise EmailAlreadyExists(err)

    return r.json().get('IDUsuario')


def get_users_by_email(email: str) -> list[dict]:
    url = urlparse(KONVIVA_API_URL)._replace(
        path='/action/api/getUsuariosByQuery',
        query=f'q=Email=={quote_plus(email)}',
    )
    r = requests.get(
        url=url.geturl(),
        headers=headers,
    )
    r.raise_for_status()

    if glom(r.json(), '0.errors', default=None):
        return []

    return r.json()