from django.db import models
from phonenumber_field.modelfields import PhoneNumberField
from django.contrib import admin

# Create your models here.
class department(models.Model):
    title = models.CharField(max_length=255)
    uebergeordnete_abteilung = models.ForeignKey(
        'self',  # Verweis auf dieselbe Tabelle
        on_delete=models.SET_NULL,  # Verhalten beim Löschen der übergeordneten Abteilung
        null=True,  # Darf leer sein (falls keine übergeordnete Abteilung existiert)
        blank=True,
        related_name='unterabteilungen'  # Ermöglicht Rückbezug
    )

    class Meta:
        verbose_name = ("Abteilung")
        verbose_name_plural = ("Abteilungen")

    def __str__(self):
        return self.title

class congregation(models.Model):

    title = models.CharField(("Name"), max_length=150) 

    class Meta:
        verbose_name = ("Versammlung")
        verbose_name_plural = ("Versammlungen")

    def __str__(self):
        return self.title

    def get_absolute_url(self):
        return reverse("congregation_detail", kwargs={"pk": self.pk})

class role(models.Model):

    name = models.CharField(("name"), max_length=50)

    class Meta:
        verbose_name = ("Rolle")
        verbose_name_plural = ("Rollen")

    def __str__(self):
        return self.name

    def get_absolute_url(self):
        return reverse("role_detail", kwargs={"pk": self.pk})

class contributors(models.Model):

    TAGE = {
        "MiV": 1,        
        "MiN": 2,        
        "DoV": 4,        
        "DoN": 8,        
        "FrV": 16,       
        "FrN": 32,       
        "SaV": 64,       
        "SaN": 128,   
        "SoV": 256,  
        "SoN": 512,     
        "Abbau": 1024,
    }

    name = models.CharField(("name"), max_length=50)
    firstname = models.CharField(("vorname"), max_length=50)
    birthday = models.DateField(("geburtstag"), auto_now=False, auto_now_add=False, blank=True, null=True)
    congregation = models.ForeignKey("main.congregation", verbose_name=("Versammlung"), on_delete=models.SET_NULL, null=True, blank=True)
    roles = models.ManyToManyField("main.role", verbose_name=("role"), null=True, blank=True)
    pioneer = models.BooleanField(("pionier"), default=False)
    gender = models.CharField("Geschlecht",max_length=20, choices=[("M", "Männlich"), ("W", "Weiblich")])
    da_approval = models.BooleanField(("Freigabe"), default=False)
    deparment = models.ManyToManyField("main.department", verbose_name=("Abteilung"), null=True, blank=True)
    tage = models.IntegerField(default=0)  # Hier speichern wir die Bitmaske
    teamleader = models.BooleanField(("Leiter"), default=False)
    second_teamleader = models.BooleanField(("Gruppenleiter"), default=False)
    mobilnumber = PhoneNumberField(("Mobilnummer"), null=True, blank=True)
    email = models.EmailField(("E-Mail"), max_length=254, null=True, blank=True)
    jwpub = models.EmailField(("JWPUB"), max_length=254, null=True, blank=True)
    notes = models.CharField(("Bemerkung"), max_length=255, null=True, blank=True)
    actual = models.BooleanField(("Aktuell"), default=False)

    class Meta:
        verbose_name = ("Helfer")
        verbose_name_plural = ("Helfer")

    @property
    @admin.display(
        ordering="name",
        description="Name, Vorname",
        boolean=False,
    )
    def full_name(self):
        return self.name + ", " + self.firstname

    def get_tage_list(self):
        """ Gibt eine Liste der aktiven Tage zurück """
        return [name for name, bit in self.TAGE.items() if self.tage & bit]

    def __str__(self):
        return f'{self.name}, {self.firstname}'

    def get_absolute_url(self):
        return reverse("contributors_detail", kwargs={"pk": self.pk})