Class: Bort::Util

Inherits:
Object
  • Object
show all
Defined in:
lib/bort.rb

Constant Summary collapse

VALID_AM_PM =

param validation

['am', 'pm', nil]
VALID_DATE_STRING = 
['today', 'now', nil]

Class Method Summary collapse

Class Method Details

.download(params) ⇒ Object 



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# File 'lib/bort.rb', line 59

def self.download(params)
  params[:key] = @@api_key
  action    = params.delete(:action)

  queries   = params.delete_if{|k, v|v.nil?}.map{|k, v| "#{k}=#{v}" }.join('&')
  request   = Net::HTTP::Get.new("/api/#{action}.aspx?#{queries}")
  response  = Net::HTTP.start('api.bart.gov') do |http|
    http.request(request)
  end

  response.body
end

.set_key(key) ⇒ Object 



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# File 'lib/bort.rb', line 55

def self.set_key(key)
  @@api_key = key
end

.validate_date(date) ⇒ Object 



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# File 'lib/bort.rb', line 91

def self.validate_date(date)
  return if VALID_DATE_STRING.include?(date)

  mm, dd, yyyy = date.split('/').map(&:to_i)
  year = Time.now.year

  unless /^\d{1,2}\/\d{1,2}\/\d{4}$/ === date &&
    (1..12) === mm &&
    (1..31) === dd &&
    (year-1..year+1) === yyyy

    raise InvalidDate.new(date)
  end
end

.validate_station(station) ⇒ Object

Raises:



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# File 'lib/bort.rb', line 106

def self.validate_station(station)
  raise InvalidStation.new(station) unless STATIONS.keys.map(&:to_s).include?(station.to_s.downcase)
end

.validate_time(time) ⇒ Object 



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# File 'lib/bort.rb', line 76

def self.validate_time(time)
  return unless time

  hm, ap = time.split('+')
  hh, mm = hm.split(':').map(&:to_i)

  unless /^\d{1,2}:\d{1,2}\+\w\w$/ === time &&
    VALID_AM_PM.include?(ap.downcase) &&
    (1..12) === hh &&
    (0..59) === mm

    raise InvalidTime.new(time)
  end
end