import logging

import stripe
from django.conf import settings
from django.contrib.auth.models import AbstractUser
from django.db import models

from core.lib.customers import get_or_create, update_customer_fields

logger = logging.getLogger(__name__)


class Plan(models.Model):
    name = models.CharField(max_length=255, unique=True)
    description = models.CharField(max_length=1024, null=True, blank=True)
    cost = models.IntegerField()
    product_id = models.CharField(max_length=255, unique=True, null=True, blank=True)
    image = models.CharField(max_length=1024, null=True, blank=True)

    def __str__(self):
        return f"{self.name} (£{self.cost})"


class User(AbstractUser):
    # Stripe customer ID
    stripe_id = models.CharField(max_length=255, null=True, blank=True)
    last_payment = models.DateTimeField(null=True, blank=True)
    plans = models.ManyToManyField(Plan, blank=True)
    email = models.EmailField(unique=True)

    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self._original = self

    def save(self, *args, **kwargs):
        """
        Override the save function to create a Stripe customer.
        """
        if settings.STRIPE_ENABLED:
            if not self.stripe_id:  # stripe ID not stored
                self.stripe_id = get_or_create(
                    self.email, self.first_name, self.last_name
                )

            to_update = {}
            if self.email != self._original.email:
                to_update["email"] = self.email
            if self.first_name != self._original.first_name:
                to_update["first_name"] = self.first_name
            if self.last_name != self._original.last_name:
                to_update["last_name"] = self.last_name

            update_customer_fields(self.stripe_id, **to_update)

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

    def delete(self, *args, **kwargs):
        if settings.STRIPE_ENABLED:
            if self.stripe_id:
                stripe.Customer.delete(self.stripe_id)
                logger.info(f"Deleted Stripe customer {self.stripe_id}")
        super().delete(*args, **kwargs)

    def has_plan(self, plan):
        plan_list = [plan.name for plan in self.plans.all()]
        return plan in plan_list


class Session(models.Model):
    user = models.ForeignKey(User, on_delete=models.CASCADE)
    request = models.CharField(max_length=255, null=True, blank=True)
    session = models.CharField(max_length=255, null=True, blank=True)
    subscription_id = models.CharField(max_length=255, null=True, blank=True)
    plan = models.ForeignKey(Plan, null=True, blank=True, on_delete=models.CASCADE)


# class Perms(models.Model):
#     class Meta:
#         permissions = (
#             ("bypass_hashing", "Can bypass field hashing"),  #
#             ("bypass_blacklist", "Can bypass the blacklist"),  #
#             ("bypass_encryption", "Can bypass field encryption"),  #
#             ("bypass_obfuscation", "Can bypass field obfuscation"),  #
#             ("bypass_delay", "Can bypass data delay"),  #
#             ("bypass_randomisation", "Can bypass data randomisation"),  #
#             ("post_irc", "Can post to IRC"),
#             ("post_discord", "Can post to Discord"),
#             ("query_search", "Can search with query strings"),  #
#             ("use_insights", "Can use the Insights page"),
#             ("index_int", "Can use the internal index"),
#             ("index_meta", "Can use the meta index"),
#             ("restricted_sources", "Can access restricted sources"),
#         )