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- require 'singleton'
-
- class FeedManager
- include Singleton
-
- MAX_ITEMS = 800
-
- def key(type, id)
- "feed:#{type}:#{id}"
- end
-
- def filter_status?(status, follower)
- replied_to_user = status.reply? ? status.thread.account : nil
- (status.reply? && !(follower.id = replied_to_user.id || follower.following?(replied_to_user)))
- end
-
- def push(timeline_type, account, status)
- redis.zadd(key(timeline_type, account.id), status.id, status.id)
- trim(timeline_type, account.id)
- broadcast(account.id, type: 'update', timeline: timeline_type, message: inline_render(account, status))
- end
-
- def broadcast(account_id, options = {})
- ActionCable.server.broadcast("timeline:#{account_id}", options)
- end
-
- def trim(type, account_id)
- return unless redis.zcard(key(type, account_id)) > FeedManager::MAX_ITEMS
- last = redis.zrevrange(key(type, account_id), FeedManager::MAX_ITEMS - 1, FeedManager::MAX_ITEMS - 1)
- redis.zremrangebyscore(key(type, account_id), '-inf', "(#{last.last}")
- end
-
- private
-
- def redis
- $redis
- end
-
- def inline_render(target_account, status)
- rabl_scope = Class.new do
- include RoutingHelper
-
- def initialize(account)
- @account = account
- end
-
- def current_user
- @account.user
- end
-
- def current_account
- @account
- end
- end
-
- Rabl::Renderer.new('api/statuses/show', status, view_path: 'app/views', format: :json, scope: rabl_scope.new(target_account)).render
- end
- end
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