- A successful delivery cancels it out - An incoming delivery from account of the inbox cancels it out
		
			
				
	
	
		
			57 lines
		
	
	
		
			1.2 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
			
		
		
	
	
			57 lines
		
	
	
		
			1.2 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
| # frozen_string_literal: true
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| 
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| class DeliveryFailureTracker
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|   FAILURE_DAYS_THRESHOLD = 7
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| 
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|   def initialize(inbox_url)
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|     @inbox_url = inbox_url
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|   end
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| 
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|   def track_failure!
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|     Redis.current.sadd(exhausted_deliveries_key, today)
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|     Redis.current.sadd('unavailable_inboxes', @inbox_url) if reached_failure_threshold?
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|   end
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| 
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|   def track_success!
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|     Redis.current.del(exhausted_deliveries_key)
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|     Redis.current.srem('unavailable_inboxes', @inbox_url)
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|   end
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| 
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|   def days
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|     Redis.current.scard(exhausted_deliveries_key) || 0
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|   end
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| 
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|   class << self
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|     def filter(arr)
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|       arr.reject(&method(:unavailable?))
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|     end
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| 
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|     def unavailable?(url)
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|       Redis.current.sismember('unavailable_inboxes', url)
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|     end
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| 
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|     def available?(url)
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|       !unavailable?(url)
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|     end
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| 
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|     def track_inverse_success!(from_account)
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|       new(from_account.inbox_url).track_success! if from_account.inbox_url.present?
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|       new(from_account.shared_inbox_url).track_success! if from_account.shared_inbox_url.present?
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|     end
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|   end
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| 
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|   private
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| 
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|   def exhausted_deliveries_key
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|     "exhausted_deliveries:#{@inbox_url}"
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|   end
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| 
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|   def today
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|     Time.now.utc.strftime('%Y%m%d')
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|   end
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| 
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|   def reached_failure_threshold?
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|     days >= FAILURE_DAYS_THRESHOLD
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|   end
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| end
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