Stanko K.R.
32 lines
769 B
Ruby
32 lines
769 B
Ruby
module MagicLink::Code
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CODE_ALPHABET = "0123456789ABCDEFGHJKMNPQRSTVWXYZ".chars.freeze
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CODE_SUBSTITUTIONS = { "O" => "0", "I" => "1", "L" => "1" }.freeze
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class << self
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def generate(length)
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length.times.map { CODE_ALPHABET.sample }.join
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end
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def sanitize(code)
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return nil if code.blank?
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normalize_code(code)
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.then { apply_substitutions(_1) }
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.then { remove_invalid_characters(_1) }
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end
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private
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def normalize_code(code)
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code.to_s.upcase
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end
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def apply_substitutions(code)
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CODE_SUBSTITUTIONS.reduce(code) { |result, (from, to)| result.gsub(from, to) }
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end
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def remove_invalid_characters(code)
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code.gsub(/[^#{CODE_ALPHABET.join}]/, "")
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end
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end
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end
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