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# frozen_string_literal: true
module Browser
class AcceptLanguage
def self.languages
@languages ||= YAML.load_file(Browser.root.join("languages.yml"))
end
def self.parse(accept_language)
return [] unless accept_language
accept_language
.split(",")
.map {|string| string.squeeze(" ").strip }
.map {|part| new(part) }
.reject {|al| al.quality.zero? }
.sort_by.with_index {|al, idx| [-al.quality, idx] }
end
attr_reader :part
def initialize(part)
@part = part
end
def full
@full ||= [code, region].compact.join("-")
end
def name
self.class.languages[full] || self.class.languages[code]
end
def code
@code ||= begin
code = part[/\A([^-;]+)/, 1]
code&.downcase
end
end
def region
@region ||= begin
region = part[/\A(?:.*?)-([^;-]+)/, 1]
region&.upcase
end
end
def quality
@quality ||= begin
Float(quality_value || 1.0)
rescue ArgumentError
0.1
end
end
private def quality_value
qvalue = part[/;q=([\d.]+)/, 1]
qvalue = /\A0\.0?\z/.match?(qvalue) ? "0.0" : qvalue
qvalue = qvalue.squeeze(".") if qvalue
qvalue
end
end
end
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