from django.db import models
from datetime import date
import pendulum
from tools.models import Markdownizable
from location.models import Club
from objective.models import Skill
from django.db.models import Q, Count, Min


class Gymnast(Markdownizable):
    """Représente un gymnaste.
	Un gymnaste peut être actif ou inactif.
	"""

    class Meta:
        verbose_name = "Gymnast"
        verbose_name_plural = "Gymnasts"

    GENDER_CHOICES = ((0, "Male"), (1, "Female"))

    last_name = models.CharField(max_length=40, null=False, blank=False)
    first_name = models.CharField(max_length=25, null=False, blank=False)
    birthdate = models.DateField(verbose_name="Date de naissance")
    gender = models.PositiveSmallIntegerField(
        choices=GENDER_CHOICES, verbose_name="Sexe"
    )
    is_active = models.BooleanField(default=1, verbose_name="Active")
    club = models.ForeignKey(
        Club, null=True, on_delete=models.SET_NULL, related_name="gymnast"
    )
    trainings_by_week = models.PositiveSmallIntegerField(verbose_name="# Training by week")
    hours_by_week = models.PositiveSmallIntegerField(verbose_name="# Hours by week")

    def __str__(self):
        return u"%s, %s" % (self.last_name, self.first_name)
    
    @property
    def next_birthday_in_days(self):
        now = pendulum.now()
        return self.next_birthday.diff(now).in_days()

    @property
    def age(self):
        """ Renvoie l'âge d'un gymnaste. """
        today = date.today()
        return (
            today.year
            - self.birthdate.year
            - ((today.month, today.day) < (self.birthdate.month, self.birthdate.day))
        )

    @property
    def next_age(self):
        """ Renvoie l'âge prochain du gymnaste. """
        return (self.age) + 1

    def min_rank_skill(self):
        tmp = Skill.objects.filter(known_by__gymnast=self.id).order_by("rank").values('rank')[:1]

        if tmp:
            min_rank = tmp[0]['rank']
        else:
            min_rank = 0
            
        return min_rank

    def max_rank_skill(self):
        tmp = Skill.objects.filter(known_by__gymnast=self.id).order_by(
            "-rank"
        ).values('rank')[:1]
        if tmp:
            max_rank = tmp[0]['rank']
        else:
            max_rank = 0
        
        return max_rank

    def known_skill_by_rank(self):
        """
        Renvoie le nombre de Skill qu'un gymnast sait faire par rang
        """
        nb_known_skill_by_rank = (
            Skill.objects.values("rank")
            .filter(known_by__gymnast=self.id)
            .order_by("rank")
            .annotate(nb_known_skill=Count("id"))
        )
        return nb_known_skill_by_rank

    def max_level_skill(self):
        tmp = Skill.objects.filter(known_by__gymnast=self.id).order_by(
            "-level"
        ).values('level')[:1]
        if tmp:
            max_level = tmp[0]['level']
        else:
            max_level = 0

        return max_level

    def nb_known_skill_by_level(self):
        nb_known_skill_by_level = (
            Skill.objects.values("level")
            .filter(known_by__gymnast=self.id)
            .order_by("level")
            .annotate(nb_known_skill=Count("id"))
        )
        return nb_known_skill_by_level