import pghistory
from django.contrib.postgres.fields import ArrayField
from django.db import models
from django.urls import reverse
from django.utils.text import slugify

from core.history import HistoricalSlug
from core.models import TrackedModel


@pghistory.track()
class Company(TrackedModel):
    class CompanyRole(models.TextChoices):
        MANUFACTURER = 'MANUFACTURER', 'Ride Manufacturer'
        DESIGNER = 'DESIGNER', 'Ride Designer'
        OPERATOR = 'OPERATOR', 'Park Operator'
        PROPERTY_OWNER = 'PROPERTY_OWNER', 'Property Owner'

    name = models.CharField(max_length=255)
    slug = models.SlugField(max_length=255, unique=True)
    roles = ArrayField(
        models.CharField(max_length=20, choices=CompanyRole.choices),
        default=list,
        blank=True
    )
    description = models.TextField(blank=True)
    website = models.URLField(blank=True)

    # General company info
    founded_date = models.DateField(null=True, blank=True)

    # Manufacturer-specific fields
    rides_count = models.IntegerField(default=0)
    coasters_count = models.IntegerField(default=0)

    def __str__(self):
        return self.name

    def save(self, *args, **kwargs):
        if not self.slug:
            self.slug = slugify(self.name)
        super().save(*args, **kwargs)

    def get_absolute_url(self):
        # This will need to be updated to handle different roles
        return reverse('companies:detail', kwargs={'slug': self.slug})
        return '#'

    @classmethod
    def get_by_slug(cls, slug):
        """Get company by current or historical slug"""
        try:
            return cls.objects.get(slug=slug), False
        except cls.DoesNotExist:
            # Check pghistory first
            history_model = cls.get_history_model()
            history_entry = (
                history_model.objects.filter(slug=slug)
                .order_by('-pgh_created_at')
                .first()
            )
            if history_entry:
                return cls.objects.get(id=history_entry.pgh_obj_id), True

            # Check manual slug history as fallback
            try:
                historical = HistoricalSlug.objects.get(
                    content_type__model='company',
                    slug=slug
                )
                return cls.objects.get(pk=historical.object_id), True
            except (HistoricalSlug.DoesNotExist, cls.DoesNotExist):
                raise cls.DoesNotExist("No company found with this slug")

    class Meta:
        ordering = ['name']
        verbose_name_plural = 'Companies'