module FFaker::PhoneNumberDE

def country_code
  '+49'
end

def home_work_phone_number(leading_zero = true)
  [region_prefix(leading_zero), FFaker.numerify('#######')].join(' ')
end

def international_home_work_phone_number
  [country_code, home_work_phone_number(false)].join(' ')
end

def international_mobile_phone_number
  [country_code, mobile_phone_number(false)].join(' ')
end

def international_phone_number
  international_home_work_phone_number
end

def mobile_phone_number(leading_zero = true)
  [mobile_prefix(leading_zero), FFaker.numerify('#######')].join(' ')
end

def mobile_prefix(leading_zero = true)
  mobile_prefix = "1#{rand(5..7)}#{rand(0..9)}"
  mobile_prefix = "0#{mobile_prefix}" if leading_zero
  mobile_prefix
end

def phone_number
  home_work_phone_number
end

def region_prefix(leading_zero = true)
  region_prefix = rand(2..9).to_s + FFaker.numerify('#' * rand(1..3)).to_s
  region_prefix = "0#{region_prefix}" if leading_zero
  region_prefix
end