from django.db import models
from django.conf import settings
from django.utils import timezone


class UserEvent(models.Model):
    class EventSource(models.IntegerChoices):
        FRONTEND = 0
        BACKEND = 1

    class EventName(models.TextChoices):
        UPDATE_PROFILE = "update_profile"
        REDEEM_EVENT_VOUCHER = "redeem_event_voucher"
        REDEEM_CREDITS_VOUCHER = "redeem_credits_voucher"
        REDEEM_EXAM_VOUCHER = "redeem_exam_voucher"
        REDEEM_LAB = "redeem_lab"
        START_LAB = "start_lab"
        TERMINATE_LAB = "terminate_lab"
        SUBMIT_LAB_FEEDBACK = "submit_lab_feedback"
        ASK_AI = "ask_ai"
        BILLING_CREATE_ORDER = "billing_create_order"
        BILLING_CHECKOUT_ORDER = "billing_checkout_order"
        BILLING_UPDATE_PROFILE = "billing_update_profile"

    user = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
    event_source = models.IntegerField(
        choices=EventSource.choices, default=EventSource.FRONTEND
    )
    event_name = models.CharField(max_length=64)
    event_body = models.JSONField(default=dict)
    page_location = models.CharField(max_length=255, null=True, blank=True)
    page_referrer = models.CharField(max_length=255, null=True, blank=True)
    device = models.JSONField(default=dict)
    geo = models.JSONField(default=dict)
    user_pseudo_id = models.CharField(max_length=128, null=True, blank=True)
    lab_code = models.CharField(max_length=32, null=True, blank=True)
    lab_instance = models.ForeignKey(
        "labs.LabInstance",
        on_delete=models.DO_NOTHING,
        null=True,
        blank=True,
    )
    created_at = models.DateTimeField(default=timezone.now)

    class Meta:
        db_table = "user_events"
        unique_together = ("user", "event_name", "event_source", "created_at")