from datetime import datetime
from orm.base import local_session
from orm.shout import Shout
from orm.user import User
from resolvers.base import mutation
from auth.authenticate import login_required

@mutation.field("inviteAuthor")
@login_required
async def invite_author(_, info, author, shout):
	auth = info.context["request"].auth
	user_id = auth.user_id

	with local_session() as session:
		shout = session.query(Shout).filter(Shout.slug == shout).first()
		if not shout:
			return {"error": "invalid shout slug"}
		authors = [a.id for a in shout.authors]
		if user_id not in authors:
			return {"error": "access denied"}
		author = session.query(User).filter(User.slug == author).first()
		if author.id in authors:
			return {"error": "already added"}
		shout.authors.append(author)
		shout.updated_at = datetime.now()
		shout.save()	
		session.commit()

	# TODO: email notify

	return {}

@mutation.field("removeAuthor")
@login_required
async def remove_author(_, info, author, shout):
	auth = info.context["request"].auth
	user_id = auth.user_id

	with local_session() as session:
		shout = session.query(Shout).filter(Shout.slug == shout).first()
		if not shout:
			return {"error": "invalid shout slug"}
		authors = [author.id for author in shout.authors]
		if user_id not in authors:
			return {"error": "access denied"}
		author = session.query(User).filter(User.slug == author).first()
		if author.id not in authors:
			return {"error": "not in authors"}
		shout.authors.remove(author)
		shout.updated_at = datetime.now()
		shout.save()	
		session.commit()

	# result = Result("INVITED")
	# FIXME: await ShoutStorage.put(result)

	# TODO: email notify

	return {}