forked from midou/invidious
147 lines
3.3 KiB
Crystal
147 lines
3.3 KiB
Crystal
# See http://www.evanmiller.org/how-not-to-sort-by-average-rating.html
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def ci_lower_bound(pos, n)
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if n == 0
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return 0.0
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end
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# z value here represents a confidence level of 0.95
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z = 1.96
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phat = 1.0*pos/n
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return (phat + z*z/(2*n) - z * Math.sqrt((phat*(1 - phat) + z*z/(4*n))/n))/(1 + z*z/n)
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end
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def elapsed_text(elapsed)
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millis = elapsed.total_milliseconds
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return "#{millis.round(2)}ms" if millis >= 1
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"#{(millis * 1000).round(2)}µs"
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end
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def make_client(url)
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context = OpenSSL::SSL::Context::Client.new
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context.add_options(
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OpenSSL::SSL::Options::ALL |
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OpenSSL::SSL::Options::NO_SSL_V2 |
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OpenSSL::SSL::Options::NO_SSL_V3
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)
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client = HTTP::Client.new(url, context)
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client.read_timeout = 10.seconds
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client.connect_timeout = 10.seconds
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return client
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end
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def decode_length_seconds(string)
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length_seconds = string.split(":").map { |a| a.to_i }
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length_seconds = [0] * (3 - length_seconds.size) + length_seconds
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length_seconds = Time::Span.new(length_seconds[0], length_seconds[1], length_seconds[2])
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length_seconds = length_seconds.total_seconds.to_i
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return length_seconds
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end
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def decode_time(string)
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time = string.try &.to_f?
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if !time
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hours = /(?<hours>\d+)h/.match(string).try &.["hours"].try &.to_f
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hours ||= 0
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minutes = /(?<minutes>\d+)m(?!s)/.match(string).try &.["minutes"].try &.to_f
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minutes ||= 0
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seconds = /(?<seconds>\d+)s/.match(string).try &.["seconds"].try &.to_f
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seconds ||= 0
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millis = /(?<millis>\d+)ms/.match(string).try &.["millis"].try &.to_f
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millis ||= 0
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time = hours * 3600 + minutes * 60 + seconds + millis / 1000
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end
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return time
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end
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def decode_date(string : String)
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# String matches 'YYYY'
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if string.match(/\d{4}/)
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return Time.new(string.to_i, 1, 1)
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end
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# String matches format "20 hours ago", "40 minutes ago"...
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date = string.split(" ")[-3, 3]
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delta = date[0].to_i
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case date[1]
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when .includes? "minute"
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delta = delta.minutes
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when .includes? "hour"
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delta = delta.hours
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when .includes? "day"
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delta = delta.days
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when .includes? "week"
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delta = delta.weeks
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when .includes? "month"
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delta = delta.months
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when .includes? "year"
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delta = delta.years
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else
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raise "Could not parse #{string}"
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end
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return Time.now - delta
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end
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def recode_date(time : Time)
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span = Time.now - time
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if span.total_days > 365.0
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span = {span.total_days / 365, "year"}
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elsif span.total_days > 30.0
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span = {span.total_days / 30, "month"}
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elsif span.total_days > 7.0
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span = {span.total_days / 7, "week"}
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elsif span.total_hours > 24.0
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span = {span.total_days, "day"}
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elsif span.total_minutes > 60.0
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span = {span.total_hours, "hour"}
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else
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span = {0, "units"}
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end
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span = {span[0].to_i, span[1]}
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if span[0] > 1
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span = {span[0], span[1] + "s"}
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end
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return span.join(" ")
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end
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def number_with_separator(number)
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number.to_s.reverse.gsub(/(\d{3})(?=\d)/, "\\1,").reverse
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end
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def arg_array(array, start = 1)
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if array.size == 0
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args = "NULL"
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else
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args = [] of String
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(start..array.size + start - 1).each { |i| args << "($#{i})" }
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args = args.join(",")
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end
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return args
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end
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def make_host_url(ssl, host)
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if ssl
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scheme = "https://"
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else
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scheme = "http://"
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end
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host ||= "invidio.us"
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return "#{scheme}#{host}"
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end
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