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71 lines
1.4 KiB
71 lines
1.4 KiB
# frozen_string_literal: true
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class ActivityTracker
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include Redisable
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EXPIRE_AFTER = 6.months.seconds
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def initialize(prefix, type)
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@prefix = prefix
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@type = type
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end
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def add(value = 1, at_time = Time.now.utc)
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key = key_at(at_time)
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case @type
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when :basic
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redis.incrby(key, value)
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when :unique
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redis.pfadd(key, value)
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end
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redis.expire(key, EXPIRE_AFTER)
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end
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def get(start_at, end_at = Time.now.utc)
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(start_at.to_date...end_at.to_date).map do |date|
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key = key_at(date.to_time(:utc))
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value = case @type
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when :basic
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redis.get(key).to_i
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when :unique
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redis.pfcount(key)
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end
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[date, value]
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end
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end
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def sum(start_at, end_at = Time.now.utc)
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keys = (start_at.to_date...end_at.to_date).flat_map { |date| [key_at(date.to_time(:utc)), legacy_key_at(date)] }.uniq
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case @type
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when :basic
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redis.mget(*keys).map(&:to_i).sum
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when :unique
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redis.pfcount(*keys)
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end
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end
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class << self
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def increment(prefix)
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new(prefix, :basic).add
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end
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def record(prefix, value)
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new(prefix, :unique).add(value)
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end
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end
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private
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def key_at(at_time)
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"#{@prefix}:#{at_time.beginning_of_day.to_i}"
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end
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def legacy_key_at(at_time)
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"#{@prefix}:#{at_time.to_date.cweek}"
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end
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end
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