# encoding: utf-8

require 'ffaker/unit'
require 'ostruct'

module Faker
  module UnitEnglish
    include Faker::Unit

    extend ModuleUtils
    extend self

    LENGTH_UNITS = [
      { name: "inch", abbreviation: "in"},
      { name: "foot", abbreviation: "ft"},
      {  name: "yard", abbreviation: "yd"},
      { name: "furlong", abbreviation: "fur"},
      { name: "mile", abbreviation: "m"}
    ]
    MASS_UNITS = [
      { name: "grains", abbreviation: "gr"},
      { name: "ounces", abbreviation: "oz"},
      { name: "pounds", abbreviation: "lb" },
      { name: "hundredweight", abbreviation: "cwt"},
      { name: "ton", abbreviation: "t" }
    ]
    LIQUID_UNITS = [
      { name: "fluid ounce", abbreviation: "fl oz"},
      { name: "gill", abbreviation: "gi"},
      { name: "pint", abbreviation: "pt"},
      { name: "quart", abbreviation: "qt"}
    ]
    VOLUME_UNITS = [
      { name: "cubic inch", abbreviation: "CI"},
      { name: "cubic foot", abbreviation: "CFT"},
      { name: "cubic yard", abbreviation: "CY"}
    ]
    AREA_UNITS = [
      { name: "square inch", abbreviation: "sq. in"},
      { name: "square foot", abbreviation: "sq ft"},
      { name: "square yard", abbreviation: "sq yd"},
      { name: "acre", abbreviation: "ac"},
      { name: "section", abbreviation: "s"},
      { name: "square mile", abbreviation: "sq mi"},
      { name: "township", abbreviation: "Twp"}
    ]

    def mass_name
      mass.name
    end

    def mass_abbr
      mass.abbreviation
    end

    def length_name
      length.name
    end

    def length_abbr
      length.abbreviation
    end

    def liquid_name
      liquid.name
    end

    def liquid_abbr
      liquid.abbreviation
    end

    def volume_name
      volume.name
    end

    def volume_abbr
      volume.abbreviation
    end

    def area_name
      area.name
    end

    def area_abbr
      area.abbreviation
    end

    private

    def length
      OpenStruct.new LENGTH_UNITS.sample
    end

    def mass
      OpenStruct.new MASS_UNITS.sample
    end

    def liquid
      OpenStruct.new LIQUID_UNITS.sample
    end

    def volume
      OpenStruct.new VOLUME_UNITS.sample
    end

    def area
      OpenStruct.new AREA_UNITS.sample
    end

  end
end