from datetime import date

from agent.models import Agent
from django.db import models


class BudgetLine(models.Model):
    amount = models.DecimalField(max_digits=12, decimal_places=2)
    author = models.ForeignKey(Agent, on_delete=models.PROTECT)
    comment = models.TextField(blank=True)
    date = models.DateField(default=date.today)
    facture = models.FileField(upload_to="factures/", null=True, blank=True)
    group = models.ForeignKey("BudgetGroup", on_delete=models.CASCADE)
    title = models.CharField(max_length=255)

    def __str__(self):
        return f"BudgetLine_{self.title}_{self.amount}€"


class BudgetGroup(models.Model):
    name = models.CharField(max_length=255)
    description = models.TextField(blank=True)

    def get_total(self):
        return sum(i.amount for i in self.budgetline_set.all())

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