SoundSoftware Code Site

module Redmine

  module I18n

    def self.included(base)

      base.extend Redmine::I18n

    end

    def l(*args)

      case args.size

      when 1

        ::I18n.t(*args)

      when 2

        if args.last.is_a?(Hash)

          ::I18n.t(*args)

        elsif args.last.is_a?(String)

          ::I18n.t(args.first, :value => args.last)

        else

          ::I18n.t(args.first, :count => args.last)

        end

      else

        raise "Translation string with multiple values: #{args.first}"

      end

    end

    def l_or_humanize(s, options={})

      k = "#{options[:prefix]}#{s}".to_sym

      ::I18n.t(k, :default => s.to_s.humanize)

    end

    def l_hours(hours)

      hours = hours.to_f

      l((hours < 2.0 ? :label_f_hour : :label_f_hour_plural), :value => ("%.2f" % hours.to_f))

    end

    def ll(lang, str, value=nil)

      ::I18n.t(str.to_s, :value => value, :locale => lang.to_s.gsub(%r{(.+)\-(.+)$}) { "#{$1}-#{$2.upcase}" })

    end

    def format_date(date)

      return nil unless date

      Setting.date_format.blank? ? ::I18n.l(date.to_date) : date.strftime(Setting.date_format)

    end

    def format_time(time, include_date = true)

      return nil unless time

      time = time.to_time if time.is_a?(String)

      zone = User.current.time_zone

      local = zone ? time.in_time_zone(zone) : (time.utc? ? time.localtime : time)

      (include_date ? "#{format_date(local)} " : "") +

        (Setting.time_format.blank? ? ::I18n.l(local, :format => :time) : local.strftime(Setting.time_format))

    end

    def day_name(day)

      ::I18n.t('date.day_names')[day % 7]

    end

    def month_name(month)

      ::I18n.t('date.month_names')[month]

    end

    def valid_languages

      @@valid_languages ||= Dir.glob(File.join(Rails.root, 'config', 'locales', '*.yml')).collect {|f| File.basename(f).split('.').first}.collect(&:to_sym)

    end

    def find_language(lang)

      @@languages_lookup = valid_languages.inject({}) {|k, v| k[v.to_s.downcase] = v; k }

      @@languages_lookup[lang.to_s.downcase]

    end

    def set_language_if_valid(lang)

      if l = find_language(lang)

        ::I18n.locale = l

      end

    end

    def current_language

      ::I18n.locale

    end

  end

end