# Copyright (C) 2020 by Animath
# SPDX-License-Identifier: GPL-3.0-or-later

import re

from django import forms
from django.core.exceptions import ValidationError
from django.utils.translation import gettext_lazy as _

from .models import Participation, Team


class TeamForm(forms.ModelForm):
    """
    Form to create a team, with the name and the trigram,
    and if the team accepts that Animath diffuse the videos.
    """
    def clean_trigram(self):
        trigram = self.cleaned_data["trigram"].upper()
        if not re.match("[A-Z]{3}", trigram):
            raise ValidationError(_("The trigram must be composed of three uppercase letters."))
        return trigram

    class Meta:
        model = Team
        fields = ('name', 'trigram',)


class JoinTeamForm(forms.ModelForm):
    """
    Form to join a team by the access code.
    """
    def clean_access_code(self):
        access_code = self.cleaned_data["access_code"]
        if not Team.objects.filter(access_code=access_code).exists():
            raise ValidationError(_("No team was found with this access code."))
        return access_code

    def clean(self):
        cleaned_data = super().clean()
        if "access_code" in cleaned_data:
            team = Team.objects.get(access_code=cleaned_data["access_code"])
            self.instance = team
        return cleaned_data

    class Meta:
        model = Team
        fields = ('access_code',)


class ParticipationForm(forms.ModelForm):
    """
    Form to update the problem of a team participation.
    """
    class Meta:
        model = Participation
        fields = ('tournament',)


class RequestValidationForm(forms.Form):
    """
    Form to ask about validation.
    """
    _form_type = forms.CharField(
        initial="RequestValidationForm",
        widget=forms.HiddenInput(),
    )

    engagement = forms.BooleanField(
        label=_("I engage myself to participate to the whole \"Correspondances\"."),
        required=True,
    )


class ValidateParticipationForm(forms.Form):
    """
    Form to let administrators to accept or refuse a team.
    """
    _form_type = forms.CharField(
        initial="ValidateParticipationForm",
        widget=forms.HiddenInput(),
    )

    message = forms.CharField(
        label=_("Message to address to the team:"),
        widget=forms.Textarea(),
    )