Class: NewsmastMastodon::CustomTimelineService

Inherits:
BaseService
  • Object
show all
Includes:
Redisable
Defined in:
app/services/newsmast_mastodon/custom_timeline_service.rb

Constant Summary collapse

MAX_ITEMS =

Maximum number of items stored in a single feed

400

Instance Method Summary collapse

Instance Method Details

#add_custom_public_status(status_id) ⇒ Object

from public status, add to mix_channel_local_timeline



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# File 'app/services/newsmast_mastodon/custom_timeline_service.rb', line 23

def add_custom_public_status(status_id)
  return unless status_id

  push_to_mix_channel_local_timeline(status_id)
  trim
end

#push_to_mix_channel_local_timeline(status_id) ⇒ Object

Add a status to mix_channel_local_timeline



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# File 'app/services/newsmast_mastodon/custom_timeline_service.rb', line 38

def push_to_mix_channel_local_timeline(status_id)
  redis.zadd(timeline_key, status_id, status_id)
end

#remove_custom_public_status(status_id) ⇒ Object

from public status, remove from mix_channel_local_timeline



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# File 'app/services/newsmast_mastodon/custom_timeline_service.rb', line 31

def remove_custom_public_status(status_id)
  return unless status_id

  unpush_from_mix_channel_local_timeline(status_id)
end

#timeline_key ⇒ Object

set custom timeline key



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# File 'app/services/newsmast_mastodon/custom_timeline_service.rb', line 13

def timeline_key
  "feed:mix_channel_local_timeline"
end

#trim ⇒ Object

Trim a feed to maximum size by removing older items



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# File 'app/services/newsmast_mastodon/custom_timeline_service.rb', line 18

def trim
  redis.zremrangebyrank(timeline_key, 0, -(MAX_ITEMS + 1))
end

#unpush_from_mix_channel_local_timeline(status_id) ⇒ Object

Remove a status from mix_channel_local_timeline



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# File 'app/services/newsmast_mastodon/custom_timeline_service.rb', line 43

def unpush_from_mix_channel_local_timeline(status_id)
  redis.zrem(timeline_key, status_id)
end