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71 lines
1.9 KiB
71 lines
1.9 KiB
require 'singleton' |
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class FeedManager |
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include Singleton |
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MAX_ITEMS = 800 |
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def key(type, id) |
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"feed:#{type}:#{id}" |
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end |
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def filter?(timeline_type, status, receiver) |
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if timeline_type == :home |
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filter_from_home?(status, receiver) |
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else |
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filter_from_mentions?(status, receiver) |
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end |
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end |
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def push(timeline_type, account, status) |
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redis.zadd(key(timeline_type, account.id), status.id, status.reblog? ? status.reblog_of_id : status.id) |
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trim(timeline_type, account.id) |
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broadcast(account.id, type: 'update', timeline: timeline_type, message: inline_render(account, status)) |
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end |
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def broadcast(account_id, options = {}) |
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ActionCable.server.broadcast("timeline:#{account_id}", options) |
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end |
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def trim(type, account_id) |
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return unless redis.zcard(key(type, account_id)) > FeedManager::MAX_ITEMS |
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last = redis.zrevrange(key(type, account_id), FeedManager::MAX_ITEMS - 1, FeedManager::MAX_ITEMS - 1) |
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redis.zremrangebyscore(key(type, account_id), '-inf', "(#{last.last}") |
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end |
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private |
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def redis |
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$redis |
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end |
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# Filter status out of the home feed if it is a reply to someone the user doesn't follow |
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def filter_from_home?(status, follower) |
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replied_to_user = status.reply? ? status.thread.account : nil |
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(status.reply? && !(follower.id == replied_to_user.id || replied_to_user.id == status.account_id || follower.following?(replied_to_user))) |
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end |
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def filter_from_mentions?(status, follower) |
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false |
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end |
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def inline_render(target_account, status) |
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rabl_scope = Class.new do |
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include RoutingHelper |
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def initialize(account) |
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@account = account |
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end |
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def current_user |
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@account.user |
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end |
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def current_account |
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@account |
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end |
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end |
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Rabl::Renderer.new('api/v1/statuses/show', status, view_path: 'app/views', format: :json, scope: rabl_scope.new(target_account)).render |
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end |
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end
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