from decimal import Decimal, InvalidOperation

from liveview import liveview_handler

from app.monthly.models import MonthlyNote
from app.monthly.services import update_budget


@liveview_handler("save_savings_target")
def save_savings_target(consumer, content):
	form = content.get("form", {})
	year = int(form.get("year", 0))
	month = int(form.get("month", 0))
	amount_raw = form.get("savings_amount", "").replace(",", ".")

	if not year or not month:
		return

	try:
		amount = Decimal(amount_raw) if amount_raw else Decimal("0")
	except (InvalidOperation, ValueError):
		return

	note, _ = MonthlyNote.objects.get_or_create(year=year, month=month)
	note.savings_target = amount
	note.save()

	update_budget(consumer, year, month)