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Contents
# frozen_string_literal: true
module ActiveRecall
class LeitnerSystem
DELAYS = [3, 7, 14, 30, 60, 120, 240].freeze
def self.right(box:, times_right:, times_wrong:, current_time: Time.current)
new(
box: box,
current_time: current_time,
times_right: times_right,
times_wrong: times_wrong
).right
end
def self.wrong(box:, times_right:, times_wrong:, current_time: Time.current)
new(
box: box,
current_time: current_time,
times_right: times_right,
times_wrong: times_wrong
).wrong
end
def initialize(box:, times_right:, times_wrong:, current_time: Time.current)
@box = box
@current_time = current_time
@times_right = times_right
@times_wrong = times_wrong
end
def right
{
box: box + 1,
times_right: times_right + 1,
times_wrong: times_wrong,
last_reviewed: current_time,
next_review: next_review
}
end
def wrong
{
box: 0,
times_right: times_right,
times_wrong: times_wrong + 1,
last_reviewed: current_time,
next_review: nil
}
end
private
attr_reader :box, :current_time, :times_right, :times_wrong
def next_review
(current_time + DELAYS[[DELAYS.count, box + 1].min - 1].days)
end
end
end
Version data entries
12 entries across 12 versions & 1 rubygems