from django.db.models import Q
from django.db import models

class TripManager(models.Manager):
    def search(self, query=None):
        qs = self.get_queryset()
        if query is not None:
            or_lookup = (Q(destination__icontains=query) |
                         Q(details__icontains=query)
                        )
            qs = qs.filter(or_lookup).distinct()
        return qs

class Trip(models.Model):
    user = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE, default=None, null=False, blank=False)
    start_date = models.DateTimeField()
    end_date = models.DateTimeField()
    destination = models.CharField(choices=CITIZENSHIP_CHOICE, max_length=30)
    details = models.TextField()
    objects = TripManager()

    def __str__(self):
        return self.destination

    class Meta:
        ordering = ('start_date',)

    def get_absolute_url(self):
        return reverse('profile_traveler', kwargs={'userid': self.user.id})

    @property
    def get_html_url(self):
        url = reverse('app_main:trip_edit', args=(self.id,))
        return f'<a href="{url}">{self.user} in {self.destination}</a>'

    @property
    def get_detail_url(self):
        url = reverse('app_main:trip_detail', args=(self.id,))
        return f'<a href="{url}">{self.user} in {self.destination}</a>'