# -*- coding: utf-8 -*-

from django.core.exceptions import ValidationError
from django.contrib.auth import get_user_model
from django.db.models import Q
from django import forms

User = get_user_model()


class LoanTransferForm(forms.Form):
    target_user = forms.CharField(
        max_length=100,
        label='Adhérent',
        help_text='email, pseudonyme ou numéro de l\'adhérent',
    )

    def clean_target_user(self):
        value = self.cleaned_data['target_user']
        result = User.objects.filter(
            Q(email__iexact=value)
            | Q(pk__iexact=value)
            | Q(nickname__iexact=value)
            | Q(username__iexact=value)
        )
        if result.count() > 1:
            raise ValidationError(
                "La recherche retourne plus d'un adhérent")
        elif result.count() < 1:
            raise ValidationError(
                "Aucun adhérent ne correspond à cette recherche")

        return result.first()