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

from datetime import date
import os

from django.conf import settings
from django.core.exceptions import ValidationError
from django.core.validators import MaxValueValidator, MinValueValidator, RegexValidator
from django.db import models
from django.db.models import F, Index, Q
from django.urls import reverse_lazy
from django.utils import timezone
from django.utils.crypto import get_random_string
from django.utils.text import format_lazy
from django.utils.translation import gettext_lazy as _
from registration.models import Payment, VolunteerRegistration
from tfjm.lists import get_sympa_client


def get_motivation_letter_filename(instance, filename):
    return f"authorization/motivation_letters/motivation_letter_{instance.trigram}"


class Team(models.Model):
    """
    The Team model represents a real team that participates to the TFJM².
    This only includes the registration detail.
    """
    name = models.CharField(
        max_length=255,
        verbose_name=_("name"),
        unique=True,
    )

    trigram = models.CharField(
        max_length=3,
        verbose_name=_("trigram"),
        help_text=_("The trigram must be composed of three uppercase letters."),
        unique=True,
        validators=[
            RegexValidator(r"^[A-Z]{3}$"),
            RegexValidator(fr"^(?!{'|'.join(f'{t}$' for t in settings.FORBIDDEN_TRIGRAMS)})",
                           message=_("This trigram is forbidden.")),
        ],
    )

    access_code = models.CharField(
        max_length=6,
        verbose_name=_("access code"),
        help_text=_("The access code let other people to join the team."),
    )

    motivation_letter = models.FileField(
        verbose_name=_("motivation letter"),
        upload_to=get_motivation_letter_filename,
        blank=True,
        default="",
    )

    @property
    def students(self):
        return self.participants.filter(studentregistration__isnull=False)

    @property
    def coaches(self):
        return self.participants.filter(coachregistration__isnull=False)

    def can_validate(self):
        if any(not r.email_confirmed for r in self.participants.all()):
            return False
        if self.students.count() < 4:
            return False
        if not self.coaches.exists():
            return False
        if not self.participation.tournament:
            return False
        if any(not r.photo_authorization for r in self.participants.all()):
            return False
        if not self.motivation_letter:
            return False
        if not self.participation.tournament.remote:
            if any(r.under_18 and not r.health_sheet for r in self.students.all()):
                return False
            if any(r.under_18 and not r.vaccine_sheet for r in self.students.all()):
                return False
            if any(r.under_18 and not r.parental_authorization for r in self.students.all()):
                return False
        return True

    def important_informations(self):
        informations = []

        if self.participation.valid is None:
            if not self.participation.tournament:
                text = _("The team {trigram} is not registered to any tournament. "
                         "You can register the team to a tournament using <a href='{url}'>this link</a>.")
                url = reverse_lazy("participation:update_team", args=(self.pk,))
                content = format_lazy(text, trigram=self.trigram, url=url)
                informations.append({
                    'title': _("No tournament"),
                    'type': "danger",
                    'priority': 4,
                    'content': content,
                })
            else:
                text = _("Registrations for the tournament of {tournament} are ending on the {date:%Y-%m-%d %H:%M}.")
                content = format_lazy(text,
                                      tournament=self.participation.tournament.name,
                                      date=self.participation.tournament.inscription_limit)
                informations.append({
                    'title': _("Registrations closure"),
                    'type': "info",
                    'priority': 1,
                    'content': content,
                })

                if not self.motivation_letter:
                    text = _("The team {trigram} has not uploaded a motivation letter. "
                             "You can upload your motivation letter using <a href='{url}'>this link</a>.")
                    url = reverse_lazy("participation:upload_team_motivation_letter", args=(self.pk,))
                    content = format_lazy(text, trigram=self.trigram, url=url)
                    informations.append({
                        'title': _("No motivation letter"),
                        'type': "danger",
                        'priority': 10,
                        'content': content,
                    })

                nb_students = self.students.count()
                nb_coaches = self.coaches.count()
                if nb_students < 4:
                    text = _("The team {trigram} has less than 4 students ({nb_students}). "
                             "You can invite more students to join the team using "
                             "the invite code <strong>{code}</strong>.")
                    content = format_lazy(text, trigram=self.trigram, nb_students=nb_students, code=self.access_code)
                    informations.append({
                        'title': _("Not enough students"),
                        'type': "warning",
                        'priority': 7,
                        'content': content,
                    })

                if not nb_coaches:
                    text = _("The team {trigram} has no coach. "
                             "You can invite a coach to join the team using the invite code <strong>{code}</strong>.")
                    content = format_lazy(text, trigram=self.trigram, nb_students=nb_students, code=self.access_code)
                    informations.append({
                        'title': _("No coach"),
                        'type': "warning",
                        'priority': 8,
                        'content': content,
                    })

                if nb_students > 6 or nb_coaches > 2:
                    text = _("The team {trigram} has more than 6 students ({nb_students}) "
                             "or more than 2 coaches ({nb_coaches})."
                             "You have to restrict the number of students and coaches to 6 and 2, respectively.")
                    content = format_lazy(text, trigram=self.trigram, nb_students=nb_students, nb_coaches=nb_coaches)
                    informations.append({
                        'title': _("Too many members"),
                        'type': "warning",
                        'priority': 7,
                        'content': content,
                    })
                elif nb_students >= 4 and nb_coaches >= 1:
                    if self.can_validate():
                        text = _("The team {trigram} is ready to be validated. "
                                 "You can request validation on <a href='{url}'>the page of your team</a>.")
                        url = reverse_lazy("participation:team_detail", args=(self.pk,))
                        content = format_lazy(text, trigram=self.trigram, url=url)
                        informations.append({
                            'title': _("Validate team"),
                            'type': "success",
                            'priority': 2,
                            'content': content,
                        })
                    else:
                        text = _("The team {trigram} has enough participants, but is not ready to be validated. "
                                 "Please make sure that all the participants have uploaded the required documents. "
                                 "To invite more participants, use the invite code <strong>{code}</strong>.")
                        content = format_lazy(text, trigram=self.trigram, code=self.access_code)
                        informations.append({
                            'title': _("Validate team"),
                            'type': "warning",
                            'priority': 10,
                            'content': content,
                        })
        elif self.participation.valid is False:
            text = _("The team {trigram} has not been validated by the organizers yet. Please be patient.")
            content = format_lazy(text, trigram=self.trigram)
            informations.append({
                'title': _("Pending validation"),
                'type': "warning",
                'priority': 2,
                'content': content,
            })
        else:
            informations.extend(self.participation.important_informations())

        return informations

    @property
    def email(self):
        """
        :return: The mailing list to contact the team members.
        """
        return f"equipe-{self.trigram.lower()}@{os.getenv('SYMPA_HOST', 'localhost')}"

    def create_mailing_list(self):
        """
        Create a new Sympa mailing list to contact the team.
        """
        get_sympa_client().create_list(
            f"equipe-{self.trigram.lower()}",
            f"Equipe {self.name} ({self.trigram})",
            "hotline",  # TODO Use a custom sympa template
            f"Liste de diffusion pour contacter l'equipe {self.name} du TFJM2",
            "education",
            raise_error=False,
        )

    def delete_mailing_list(self):
        """
        Drop the Sympa mailing list, if the team is empty or if the trigram changed.
        """
        if self.participation.valid:  # pragma: no cover
            get_sympa_client().unsubscribe(
                self.email, f"equipes-{self.participation.tournament.name.lower().replace(' ', '-')}", False)
        else:
            get_sympa_client().unsubscribe(self.email, "equipes-non-valides", False)
        get_sympa_client().delete_list(f"equipe-{self.trigram}")

    def save(self, *args, **kwargs):
        if not self.access_code:
            # if the team got created, generate the access code, create the contact mailing list
            self.access_code = get_random_string(6)
            self.create_mailing_list()

        return super().save(*args, **kwargs)

    def get_absolute_url(self):
        return reverse_lazy("participation:team_detail", args=(self.pk,))

    def __str__(self):
        return _("Team {name} ({trigram})").format(name=self.name, trigram=self.trigram)

    class Meta:
        verbose_name = _("team")
        verbose_name_plural = _("teams")
        ordering = ('trigram',)
        indexes = [
            Index(fields=("trigram", )),
        ]


class Tournament(models.Model):
    name = models.CharField(
        max_length=255,
        verbose_name=_("name"),
        unique=True,
    )

    date_start = models.DateField(
        verbose_name=_("start"),
        default=date.today,
    )

    date_end = models.DateField(
        verbose_name=_("end"),
        default=date.today,
    )

    place = models.CharField(
        max_length=255,
        verbose_name=_("place"),
    )

    max_teams = models.PositiveSmallIntegerField(
        verbose_name=_("max team count"),
        default=9,
    )

    price = models.PositiveSmallIntegerField(
        verbose_name=_("price"),
        default=21,
    )

    remote = models.BooleanField(
        verbose_name=_("remote"),
        default=False,
    )

    inscription_limit = models.DateTimeField(
        verbose_name=_("limit date for registrations"),
        default=timezone.now,
    )

    solution_limit = models.DateTimeField(
        verbose_name=_("limit date to upload solutions"),
        default=timezone.now,
    )

    solutions_draw = models.DateTimeField(
        verbose_name=_("random draw for solutions"),
        default=timezone.now,
    )

    syntheses_first_phase_limit = models.DateTimeField(
        verbose_name=_("limit date to upload the syntheses for the first phase"),
        default=timezone.now,
    )

    solutions_available_second_phase = models.DateTimeField(
        verbose_name=_("date when the solutions for the second round become available"),
        default=timezone.now,
    )

    syntheses_second_phase_limit = models.DateTimeField(
        verbose_name=_("limit date to upload the syntheses for the second phase"),
        default=timezone.now,
    )

    description = models.TextField(
        verbose_name=_("description"),
        blank=True,
    )

    organizers = models.ManyToManyField(
        VolunteerRegistration,
        verbose_name=_("organizers"),
        related_name="organized_tournaments",
    )

    final = models.BooleanField(
        verbose_name=_("final"),
        default=False,
    )

    @property
    def teams_email(self):
        """
        :return: The mailing list to contact the team members.
        """
        return f"equipes-{self.name.lower().replace(' ', '-')}@{os.getenv('SYMPA_HOST', 'localhost')}"

    @property
    def organizers_email(self):
        """
        :return: The mailing list to contact the team members.
        """
        return f"organisateurs-{self.name.lower().replace(' ', '-')}@{os.getenv('SYMPA_HOST', 'localhost')}"

    @property
    def jurys_email(self):
        """
        :return: The mailing list to contact the team members.
        """
        return f"jurys-{self.name.lower().replace(' ', '-')}@{os.getenv('SYMPA_HOST', 'localhost')}"

    def create_mailing_lists(self):
        """
        Create a new Sympa mailing list to contact the team.
        """
        get_sympa_client().create_list(
            f"equipes-{self.name.lower().replace(' ', '-')}",
            f"Equipes du tournoi de {self.name}",
            "hotline",  # TODO Use a custom sympa template
            f"Liste de diffusion pour contacter les equipes du tournoi {self.name} du TFJM²",
            "education",
            raise_error=False,
        )
        get_sympa_client().create_list(
            f"organisateurs-{self.name.lower().replace(' ', '-')}",
            f"Organisateurs du tournoi de {self.name}",
            "hotline",  # TODO Use a custom sympa template
            f"Liste de diffusion pour contacter les equipes du tournoi {self.name} du TFJM²",
            "education",
            raise_error=False,
        )

    @staticmethod
    def final_tournament():
        qs = Tournament.objects.filter(final=True)
        if qs.exists():
            return qs.get()

    @property
    def participations(self):
        if self.final:
            return Participation.objects.filter(final=True)
        return self.participation_set

    @property
    def solutions(self):
        if self.final:
            return Solution.objects.filter(final_solution=True)
        return Solution.objects.filter(participation__tournament=self)

    @property
    def syntheses(self):
        if self.final:
            return Synthesis.objects.filter(final_solution=True)
        return Synthesis.objects.filter(participation__tournament=self)

    @property
    def best_format(self):
        n = len(self.participations.filter(valid=True).all())
        fmt = [n] if n <= 5 else [3] * (n // 3 - 1) + [3 + n % 3]
        return '+'.join(map(str, sorted(fmt)))

    def get_absolute_url(self):
        return reverse_lazy("participation:tournament_detail", args=(self.pk,))

    def __str__(self):
        return self.name

    class Meta:
        verbose_name = _("tournament")
        verbose_name_plural = _("tournaments")
        indexes = [
            Index(fields=("name", "date_start", "date_end", )),
        ]


class Participation(models.Model):
    """
    The Participation model contains all data that are related to the participation:
    chosen problem, validity status, solutions,...
    """
    team = models.OneToOneField(
        Team,
        on_delete=models.CASCADE,
        verbose_name=_("team"),
    )

    tournament = models.ForeignKey(
        Tournament,
        on_delete=models.SET_NULL,
        null=True,
        blank=True,
        default=None,
        verbose_name=_("tournament"),
    )

    valid = models.BooleanField(
        null=True,
        default=None,
        verbose_name=_("valid team"),
        help_text=_("The participation got the validation of the organizers."),
    )

    final = models.BooleanField(
        default=False,
        verbose_name=_("selected for final"),
        help_text=_("The team is selected for the final tournament."),
    )

    def get_absolute_url(self):
        return reverse_lazy("participation:participation_detail", args=(self.pk,))

    def __str__(self):
        return _("Participation of the team {name} ({trigram})").format(name=self.team.name, trigram=self.team.trigram)

    def important_informations(self):
        informations = []

        missing_payments = Payment.objects.filter(registrations__in=self.team.participants.all(), valid=False)
        if missing_payments.exists():
            text = _("<p>The team {trigram} has {nb_missing_payments} missing payments. Each member of the team "
                     "must have a valid payment (or send a scholarship notification) "
                     "to participate to the tournament.</p>"
                     "<p>Participants that have not paid yet are: {participants}.</p>")
            content = format_lazy(text, trigram=self.team.trigram, nb_missing_payments=missing_payments.count(),
                                  participants=", ".join(", ".join(str(r) for r in p.registrations.all())
                                                         for p in missing_payments.all()))
            informations.append({
                'title': _("Missing payments"),
                'type': "danger",
                'priority': 10,
                'content': content,
            })

        if timezone.now() <= self.tournament.solution_limit:
            text = _("<p>The solutions for the tournament of {tournament} are due on the {date:%Y-%m-%d %H:%M}.</p>"
                     "<p>You have currently sent <strong>{nb_solutions}</strong> solutions. "
                     "We suggest to send at least <strong>{min_solutions}</strong> different solutions.</p>"
                     "<p>You can upload your solutions on <a href='{url}'>your participation page</a>.</p>")
            url = reverse_lazy("participation:participation_detail", args=(self.pk,))
            content = format_lazy(text, tournament=self.tournament.name, date=self.tournament.solution_limit,
                                  nb_solutions=self.solutions.count(), min_solutions=len(settings.PROBLEMS) - 3,
                                  url=url)
            informations.append({
                'title': _("Solutions due"),
                'type': "info",
                'priority': 1,
                'content': content,
            })

        return informations

    class Meta:
        verbose_name = _("participation")
        verbose_name_plural = _("participations")
        ordering = ('valid', 'team__trigram',)


class Pool(models.Model):
    tournament = models.ForeignKey(
        Tournament,
        on_delete=models.CASCADE,
        related_name="pools",
        verbose_name=_("tournament"),
    )

    round = models.PositiveSmallIntegerField(
        verbose_name=_("round"),
        choices=[
            (1, format_lazy(_("Round {round}"), round=1)),
            (2, format_lazy(_("Round {round}"), round=2)),
        ]
    )

    letter = models.PositiveSmallIntegerField(
        choices=[
            (1, 'A'),
            (2, 'B'),
            (3, 'C'),
            (4, 'D'),
        ],
        verbose_name=_('letter'),
    )

    participations = models.ManyToManyField(
        Participation,
        related_name="pools",
        verbose_name=_("participations"),
    )

    juries = models.ManyToManyField(
        VolunteerRegistration,
        related_name="jury_in",
        verbose_name=_("juries"),
    )

    jury_president = models.ForeignKey(
        VolunteerRegistration,
        on_delete=models.SET_NULL,
        null=True,
        default=None,
        related_name="pools_presided",
        verbose_name=_("president of the jury"),
    )

    bbb_url = models.CharField(
        max_length=255,
        blank=True,
        default="",
        verbose_name=_("BigBlueButton URL"),
        help_text=_("The link of the BBB visio for this pool."),
    )

    results_available = models.BooleanField(
        default=False,
        verbose_name=_("results available"),
        help_text=_("Check this case when results become accessible to teams. "
                    "They stay accessible to you. Only averages are given."),
    )

    @property
    def solutions(self):
        return [passage.defended_solution for passage in self.passages.all()]

    def average(self, participation):
        return sum(passage.average(participation) for passage in self.passages.all()) \
               + sum(tweak.diff for tweak in participation.tweaks.filter(pool=self).all())

    async def aaverage(self, participation):
        return sum([passage.average(participation) async for passage in self.passages.all()]) \
               + sum([tweak.diff async for tweak in participation.tweaks.filter(pool=self).all()])

    def get_absolute_url(self):
        return reverse_lazy("participation:pool_detail", args=(self.pk,))

    def validate_constraints(self, exclude=None):
        if self.jury_president not in self.juries.all():
            raise ValidationError({'jury_president': _("The president of the jury must be part of the jury.")})
        return super().validate_constraints()

    def __str__(self):
        return _("Pool of day {round} for tournament {tournament} with teams {teams}")\
            .format(round=self.round,
                    tournament=str(self.tournament),
                    teams=", ".join(participation.team.trigram for participation in self.participations.all()))

    class Meta:
        verbose_name = _("pool")
        verbose_name_plural = _("pools")
        ordering = ('round', 'letter',)


class Passage(models.Model):
    pool = models.ForeignKey(
        Pool,
        on_delete=models.CASCADE,
        verbose_name=_("pool"),
        related_name="passages",
    )

    position = models.PositiveSmallIntegerField(
        verbose_name=_("position"),
        choices=zip(range(1, 6), range(1, 6)),
        default=1,
        validators=[MinValueValidator(1), MaxValueValidator(5)],
    )

    solution_number = models.PositiveSmallIntegerField(
        verbose_name=_("defended solution"),
        choices=[
            (i, format_lazy(_("Problem #{problem}"), problem=i)) for i in range(1, len(settings.PROBLEMS) + 1)
        ],
    )

    defender = models.ForeignKey(
        Participation,
        on_delete=models.PROTECT,
        verbose_name=_("defender"),
        related_name="+",
    )

    opponent = models.ForeignKey(
        Participation,
        on_delete=models.PROTECT,
        verbose_name=_("opponent"),
        related_name="+",
    )

    reporter = models.ForeignKey(
        Participation,
        on_delete=models.PROTECT,
        verbose_name=_("reporter"),
        related_name="+",
    )

    observer = models.ForeignKey(
        Participation,
        on_delete=models.PROTECT,
        null=True,
        blank=True,
        default=None,
        verbose_name=_("observer"),
        related_name="+",
    )

    defender_penalties = models.PositiveSmallIntegerField(
        verbose_name=_("penalties"),
        default=0,
        help_text=_("Number of penalties for the defender. "
                    "The defender will loose a 0.5 coefficient per penalty."),
    )

    @property
    def defended_solution(self) -> "Solution":
        return Solution.objects.get(
            participation=self.defender,
            problem=self.solution_number,
            final_solution=self.pool.tournament.final)

    def avg(self, iterator) -> float:
        items = [i for i in iterator if i]
        return sum(items) / len(items) if items else 0

    @property
    def average_defender_writing(self) -> float:
        return self.avg(note.defender_writing for note in self.notes.all())

    @property
    def average_defender_oral(self) -> float:
        return self.avg(note.defender_oral for note in self.notes.all())

    @property
    def average_defender(self) -> float:
        return self.average_defender_writing + (1.6 - 0.4 * self.defender_penalties) * self.average_defender_oral

    @property
    def average_opponent_writing(self) -> float:
        return self.avg(note.opponent_writing for note in self.notes.all())

    @property
    def average_opponent_oral(self) -> float:
        return self.avg(note.opponent_oral for note in self.notes.all())

    @property
    def average_opponent(self) -> float:
        return 0.9 * self.average_opponent_writing + 2 * self.average_opponent_oral

    @property
    def average_reporter_writing(self) -> float:
        return self.avg(note.reporter_writing for note in self.notes.all())

    @property
    def average_reporter_oral(self) -> float:
        return self.avg(note.reporter_oral for note in self.notes.all())

    @property
    def average_reporter(self) -> float:
        return 0.9 * self.average_reporter_writing + self.average_reporter_oral

    @property
    def average_observer(self) -> float:
        return self.avg(note.observer_oral for note in self.notes.all())

    @property
    def averages(self):
        yield self.average_defender_writing
        yield self.average_defender_oral
        yield self.average_opponent_writing
        yield self.average_opponent_oral
        yield self.average_reporter_writing
        yield self.average_reporter_oral
        if self.observer:
            yield self.average_observer

    def average(self, participation):
        return self.average_defender if participation == self.defender else self.average_opponent \
            if participation == self.opponent else self.average_reporter if participation == self.reporter \
            else self.average_observer if participation == self.observer else 0

    def get_absolute_url(self):
        return reverse_lazy("participation:passage_detail", args=(self.pk,))

    def clean(self):
        if self.defender not in self.pool.participations.all():
            raise ValidationError(_("Team {trigram} is not registered in the pool.")
                                  .format(trigram=self.defender.team.trigram))
        if self.opponent not in self.pool.participations.all():
            raise ValidationError(_("Team {trigram} is not registered in the pool.")
                                  .format(trigram=self.opponent.team.trigram))
        if self.reporter not in self.pool.participations.all():
            raise ValidationError(_("Team {trigram} is not registered in the pool.")
                                  .format(trigram=self.reporter.team.trigram))
        if self.observer and self.observer not in self.pool.participations.all():
            raise ValidationError(_("Team {trigram} is not registered in the pool.")
                                  .format(trigram=self.observer.team.trigram))
        return super().clean()

    def __str__(self):
        return _("Passage of {defender} for problem {problem}")\
            .format(defender=self.defender.team, problem=self.solution_number)

    class Meta:
        verbose_name = _("passage")
        verbose_name_plural = _("passages")
        ordering = ('pool', 'position',)


class Tweak(models.Model):
    pool = models.ForeignKey(
        Pool,
        on_delete=models.CASCADE,
        verbose_name=_("passage"),
    )

    participation = models.ForeignKey(
        Participation,
        on_delete=models.CASCADE,
        verbose_name=_("participation"),
        related_name='tweaks',
    )

    diff = models.IntegerField(
        verbose_name=_("difference"),
        help_text=_("Score to add/remove on the final score"),
    )

    def __str__(self):
        return f"Tweak for {self.participation.team} of {self.diff} points"

    class Meta:
        verbose_name = _("tweak")
        verbose_name_plural = _("tweaks")


def get_solution_filename(instance, filename):
    return f"solutions/{instance.participation.team.trigram}_{instance.problem}" \
           + ("final" if instance.final_solution else "")


def get_synthesis_filename(instance, filename):
    return f"syntheses/{instance.participation.team.trigram}_{instance.type}_{instance.passage.pk}"


class Solution(models.Model):
    participation = models.ForeignKey(
        Participation,
        on_delete=models.CASCADE,
        verbose_name=_("participation"),
        related_name="solutions",
    )

    problem = models.PositiveSmallIntegerField(
        verbose_name=_("problem"),
        choices=[
            (i, format_lazy(_("Problem #{problem}"), problem=i)) for i in range(1, len(settings.PROBLEMS) + 1)
        ],
    )

    final_solution = models.BooleanField(
        verbose_name=_("solution for the final tournament"),
        default=False,
    )

    file = models.FileField(
        verbose_name=_("file"),
        upload_to=get_solution_filename,
        unique=True,
    )

    @property
    def tournament(self):
        return Tournament.final_tournament() if self.final_solution else self.participation.tournament

    def __str__(self):
        return _("Solution of team {team} for problem {problem}")\
            .format(team=self.participation.team.name, problem=self.problem)\
            + (" " + str(_("for final")) if self.final_solution else "")

    class Meta:
        verbose_name = _("solution")
        verbose_name_plural = _("solutions")
        unique_together = (('participation', 'problem', 'final_solution', ), )
        ordering = ('participation__team__trigram', 'final_solution', 'problem',)


class Synthesis(models.Model):
    participation = models.ForeignKey(
        Participation,
        on_delete=models.CASCADE,
        verbose_name=_("participation"),
    )

    passage = models.ForeignKey(
        Passage,
        on_delete=models.CASCADE,
        related_name="syntheses",
        verbose_name=_("passage"),
    )

    type = models.PositiveSmallIntegerField(
        choices=[
            (1, _("opponent"), ),
            (2, _("reporter"), ),
        ]
    )

    file = models.FileField(
        verbose_name=_("file"),
        upload_to=get_synthesis_filename,
        unique=True,
    )

    def __str__(self):
        return _("Synthesis of {team} as {type} for problem {problem} of {defender}").format(
            team=self.participation.team.trigram,
            type=self.get_type_display(),
            problem=self.passage.solution_number,
            defender=self.passage.defender.team.trigram,
        )

    class Meta:
        verbose_name = _("synthesis")
        verbose_name_plural = _("syntheses")
        unique_together = (('participation', 'passage', 'type', ), )
        ordering = ('passage__pool__round', 'type',)


class Note(models.Model):
    jury = models.ForeignKey(
        VolunteerRegistration,
        on_delete=models.CASCADE,
        verbose_name=_("jury"),
        related_name="notes",
    )

    passage = models.ForeignKey(
        Passage,
        on_delete=models.CASCADE,
        verbose_name=_("passage"),
        related_name="notes",
    )

    defender_writing = models.PositiveSmallIntegerField(
        verbose_name=_("defender writing note"),
        choices=[(i, i) for i in range(0, 21)],
        default=0,
    )

    defender_oral = models.PositiveSmallIntegerField(
        verbose_name=_("defender oral note"),
        choices=[(i, i) for i in range(0, 21)],
        default=0,
    )

    opponent_writing = models.PositiveSmallIntegerField(
        verbose_name=_("opponent writing note"),
        choices=[(i, i) for i in range(0, 11)],
        default=0,
    )

    opponent_oral = models.PositiveSmallIntegerField(
        verbose_name=_("opponent oral note"),
        choices=[(i, i) for i in range(0, 11)],
        default=0,
    )

    reporter_writing = models.PositiveSmallIntegerField(
        verbose_name=_("reporter writing note"),
        choices=[(i, i) for i in range(0, 11)],
        default=0,
    )

    reporter_oral = models.PositiveSmallIntegerField(
        verbose_name=_("reporter oral note"),
        choices=[(i, i) for i in range(0, 11)],
        default=0,
    )

    observer_oral = models.SmallIntegerField(
        verbose_name=_("observer note"),
        choices=zip(range(-4, 5), range(-4, 5)),
        default=0,
    )

    def get_all(self):
        yield self.defender_writing
        yield self.defender_oral
        yield self.opponent_writing
        yield self.opponent_oral
        yield self.reporter_writing
        yield self.reporter_oral
        if self.passage.observer:
            yield self.observer_oral

    def set_all(self, defender_writing: int, defender_oral: int, opponent_writing: int, opponent_oral: int,
                reporter_writing: int, reporter_oral: int, observer_oral: int = 0):
        self.defender_writing = defender_writing
        self.defender_oral = defender_oral
        self.opponent_writing = opponent_writing
        self.opponent_oral = opponent_oral
        self.reporter_writing = reporter_writing
        self.reporter_oral = reporter_oral
        self.observer_oral = observer_oral

    def get_absolute_url(self):
        return reverse_lazy("participation:passage_detail", args=(self.passage.pk,))

    @property
    def modal_name(self):
        return f"updateNotes{self.pk}"

    def has_any_note(self):
        return any(self.get_all())

    def __str__(self):
        return _("Notes of {jury} for {passage}").format(jury=self.jury, passage=self.passage)

    class Meta:
        verbose_name = _("note")
        verbose_name_plural = _("notes")