62 lines
1.3 KiB
Ruby
62 lines
1.3 KiB
Ruby
class Mailings::HourlyThroughput
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HOUR = 1.hour
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RECENT = 15.minutes
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HISTORY_HOURS = 12
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def initialize(project, now: Time.current)
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@project = project
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@now = now
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end
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def sent
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@sent ||= sent_since(HOUR)
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end
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def recent_sent
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@recent_sent ||= sent_since(RECENT)
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end
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def failed
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@failed ||= recipients.failed.where(updated_at: (@now - HOUR)..@now).count
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end
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def drained
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sent + failed
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end
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def hourly_history
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@hourly_history ||= begin
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from = (@now - (HISTORY_HOURS - 1).hours).beginning_of_hour
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keyed = recipients.sent
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.where(sent_at: from..@now)
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.pluck(:sent_at)
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.each_with_object(Hash.new(0)) do |sent_at, counts|
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counts[sent_at.in_time_zone.beginning_of_hour] += 1
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end
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HISTORY_HOURS.times.map do |index|
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at = from + index.hours
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{ at: at, count: keyed[at] || 0 }
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end
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end
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end
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def history_total
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hourly_history.sum { |bucket| bucket[:count] }
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end
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def history_max
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[hourly_history.map { |bucket| bucket[:count] }.max, 1].max
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end
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private
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def sent_since(window)
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recipients.sent.where(sent_at: (@now - window)..@now).count
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end
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def recipients
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MailingRecipient.joins(:mailing).merge(Mailing.for_project(@project))
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end
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end
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