259 lines
8.9 KiB
Python
259 lines
8.9 KiB
Python
import json
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import time
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from typing import List
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from sqlalchemy import select, or_
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from sqlalchemy.sql import and_
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from orm.author import Author, AuthorFollower
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# from orm.community import Community
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from orm.reaction import Reaction
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from orm.shout import Shout, ShoutReactionsFollower
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from orm.topic import Topic, TopicFollower
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from resolvers.community import community_follow, community_unfollow
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from resolvers.topic import topic_unfollow
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from resolvers.stat import get_with_stat, author_follows_topics, author_follows_authors
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from services.auth import login_required
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from services.db import local_session
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from services.cache import (
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DEFAULT_FOLLOWS,
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update_follows_for_author,
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update_followers_for_author,
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)
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from services.notify import notify_follower
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from services.schema import mutation, query
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from services.logger import root_logger as logger
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from services.rediscache import redis
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@mutation.field('follow')
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@login_required
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async def follow(_, info, what, slug):
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follows = None
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logger.debug(info.context['request'])
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try:
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user_id = info.context['user_id']
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follower_query = (
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select(Author).select_from(Author).filter(Author.user == user_id)
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)
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[follower] = get_with_stat(follower_query)
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if follower:
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if what == 'AUTHOR':
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if author_unfollow(follower.id, slug):
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author_query = (
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select(Author).select_from(Author).where(Author.slug == slug)
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)
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[author] = get_with_stat(author_query)
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if author:
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follows = await update_follows_for_author(
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follower, 'author', author, True
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)
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await update_followers_for_author(follower, author, True)
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await notify_follower(follower.dict(), author.id, 'unfollow')
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elif what == 'TOPIC':
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topic_query = select(Topic).where(Topic.slug == slug)
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[topic] = get_with_stat(topic_query)
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if topic:
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follows = await update_follows_for_author(
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follower, 'topic', topic, True
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)
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topic_unfollow(follower.id, slug)
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elif what == 'COMMUNITY':
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community_follow(follower.id, slug)
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elif what == 'REACTIONS':
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reactions_follow(follower.id, slug)
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except Exception as e:
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logger.debug(info, what, slug)
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logger.error(e)
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return {'error': str(e), f'{what.lower()}s': follows}
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return {}
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@mutation.field('unfollow')
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@login_required
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async def unfollow(_, info, what, slug):
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follows = None
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try:
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user_id = info.context.get('user_id')
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if not user_id:
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return {"error": "unauthorized"}
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follower_query = select(Author).filter(Author.user == user_id)
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[follower] = get_with_stat(follower_query)
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if follower:
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if what == 'AUTHOR':
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if author_unfollow(follower.id, slug):
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author_query = select(Author).where(Author.slug == slug)
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[author] = get_with_stat(author_query)
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if author:
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await update_follows_for_author(
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follower, 'author', author, False
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)
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follows = await update_followers_for_author(
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follower, author, False
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)
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await notify_follower(follower.dict(), author.id, 'unfollow')
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elif what == 'TOPIC':
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topic_query = select(Topic).where(Topic.slug == slug)
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[topic] = get_with_stat(topic_query)
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if topic:
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follows = await update_follows_for_author(
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follower, 'topic', topic, False
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)
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topic_unfollow(follower.id, slug)
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elif what == 'COMMUNITY':
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community_unfollow(follower.id, slug)
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elif what == 'REACTIONS':
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reactions_unfollow(follower.id, slug)
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except Exception as e:
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return {'error': str(e), f'{what.lower()}s': follows}
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return {}
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async def get_follows_by_user_id(user_id: str):
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if not user_id:
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return {"error": "unauthorized"}
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author = await redis.execute('GET', f'user:{user_id}:author')
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if isinstance(author, str):
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author = json.loads(author)
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if not author:
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with local_session() as session:
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author = session.query(Author).filter(Author.user == user_id).first()
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if not author:
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return {"error": "cant find author"}
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author = author.dict()
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last_seen = author.get('last_seen', 0) if isinstance(author, dict) else 0
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follows = DEFAULT_FOLLOWS
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day_old = int(time.time()) - last_seen > 24 * 60 * 60
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if day_old:
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author_id = json.loads(str(author)).get('id')
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if author_id:
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topics = author_follows_topics(author_id)
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authors = author_follows_authors(author_id)
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follows = {
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'topics': topics,
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'authors': authors,
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'communities': [
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{'id': 1, 'name': 'Дискурс', 'slug': 'discours', 'pic': ''}
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],
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}
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else:
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logger.debug(f'getting follows for {user_id} from redis')
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res = await redis.execute('GET', f'user:{user_id}:follows')
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if isinstance(res, str):
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follows = json.loads(res)
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return follows
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def reactions_follow(author_id, shout_id, auto=False):
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try:
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with local_session() as session:
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shout = session.query(Shout).where(Shout.id == shout_id).one()
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following = (
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session.query(ShoutReactionsFollower)
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.where(
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and_(
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ShoutReactionsFollower.follower == author_id,
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ShoutReactionsFollower.shout == shout.id,
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)
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)
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.first()
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)
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if not following:
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following = ShoutReactionsFollower(
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follower=author_id, shout=shout.id, auto=auto
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)
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session.add(following)
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session.commit()
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return True
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except Exception:
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return False
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def reactions_unfollow(author_id, shout_id: int):
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try:
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with local_session() as session:
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shout = session.query(Shout).where(Shout.id == shout_id).one()
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following = (
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session.query(ShoutReactionsFollower)
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.where(
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and_(
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ShoutReactionsFollower.follower == author_id,
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ShoutReactionsFollower.shout == shout.id,
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)
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)
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.first()
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)
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if following:
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session.delete(following)
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session.commit()
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return True
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except Exception as ex:
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logger.debug(ex)
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return False
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# for mutation.field("follow")
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def author_follow(follower_id, slug):
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try:
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with local_session() as session:
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author = session.query(Author).where(Author.slug == slug).one()
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af = AuthorFollower(follower=follower_id, author=author.id)
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session.add(af)
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session.commit()
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return True
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except Exception:
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return False
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# for mutation.field("unfollow")
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def author_unfollow(follower_id, slug):
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with local_session() as session:
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flw = (
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session.query(AuthorFollower)
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.join(Author, Author.id == AuthorFollower.author)
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.filter(and_(AuthorFollower.follower == follower_id, Author.slug == slug))
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.first()
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)
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if flw:
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session.delete(flw)
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session.commit()
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return True
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return False
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@query.field('get_topic_followers')
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def get_topic_followers(_, _info, slug: str, topic_id: int) -> List[Author]:
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q = select(Author)
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q = (
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q.join(TopicFollower, TopicFollower.follower == Author.id)
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.join(Topic, Topic.id == TopicFollower.topic)
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.filter(or_(Topic.slug == slug, Topic.id == topic_id))
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)
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return get_with_stat(q)
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@query.field('get_shout_followers')
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def get_shout_followers(
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_, _info, slug: str = '', shout_id: int | None = None
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) -> List[Author]:
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followers = []
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with local_session() as session:
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shout = None
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if slug:
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shout = session.query(Shout).filter(Shout.slug == slug).first()
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elif shout_id:
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shout = session.query(Shout).filter(Shout.id == shout_id).first()
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if shout:
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reactions = session.query(Reaction).filter(Reaction.shout == shout.id).all()
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for r in reactions:
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followers.append(r.created_by)
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return followers
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