from django.template.loader import render_to_string
from liveview import liveview_handler, send

from app.monthly.models import MonthlyGoal


def _render_goals(year, month, kind):
	items = MonthlyGoal.objects.filter(year=year, month=month, kind=kind)
	target = f"#{kind}s-list"
	return target, render_to_string(
		"pages/monthly/partials/goals_list.html",
		{"items": items, "year": year, "month": month, "kind": kind},
	)


@liveview_handler("add_goal")
def add_goal(consumer, content):
	form = content.get("form", {})
	year = int(form.get("year", 0))
	month = int(form.get("month", 0))
	kind = form.get("kind", "")
	text = form.get("goal_text", "").strip()

	if not text or not year or not month or kind not in ("goal", "promise"):
		return

	MonthlyGoal.objects.create(year=year, month=month, text=text, kind=kind)

	target, html = _render_goals(year, month, kind)
	send(consumer, {"target": target, "html": html})


@liveview_handler("toggle_goal")
def toggle_goal(consumer, content):
	data = content.get("data", {})
	goal_id = data.get("data_id", "")
	year = int(data.get("data_year", 0))
	month = int(data.get("data_month", 0))
	kind = data.get("data_kind", "")

	if not goal_id:
		return

	try:
		goal = MonthlyGoal.objects.get(id=goal_id)
		goal.done = not goal.done
		goal.save()
	except MonthlyGoal.DoesNotExist:
		return

	target, html = _render_goals(year, month, kind)
	send(consumer, {"target": target, "html": html})


@liveview_handler("delete_goal")
def delete_goal(consumer, content):
	data = content.get("data", {})
	goal_id = data.get("data_id", "")
	year = int(data.get("data_year", 0))
	month = int(data.get("data_month", 0))
	kind = data.get("data_kind", "")

	if not goal_id:
		return

	MonthlyGoal.objects.filter(id=goal_id).delete()

	target, html = _render_goals(year, month, kind)
	send(consumer, {"target": target, "html": html})