from django.db import models

from apps.core.models import TimeStampedModel, UUIDModel


class Invoice(UUIDModel, TimeStampedModel):
    class SyncState(models.TextChoices):
        PENDING = "pending", "Pending"
        PROCESSING = "processing", "Processing"
        SYNCHRONIZED = "synchronized", "Synchronized"
        FAILED = "failed", "Failed"
        RETRYING = "retrying", "Retrying"
        CANCELLED = "cancelled", "Cancelled"

    order = models.ForeignKey("orders.ProcessingOrder", on_delete=models.PROTECT, related_name="invoices")
    number = models.CharField(max_length=40, unique=True)
    amount = models.DecimalField(max_digits=18, decimal_places=2)
    currency = models.CharField(max_length=8, default="IRR")
    sync_state = models.CharField(max_length=16, choices=SyncState.choices, default=SyncState.PENDING)
    odoo_invoice_id = models.CharField(max_length=120, blank=True)
    last_error = models.TextField(blank=True)
    synced_at = models.DateTimeField(null=True, blank=True)

    class Meta:
        ordering = ["-created_at"]

    def __str__(self) -> str:
        return self.number