Class: HrtBus::Bus

Inherits:
Object
  • Object
show all
Includes:
ActiveModel::Serializers::JSON, ActiveModel::Validations
Defined in:
lib/hrt_bus/bus.rb

Constant Summary collapse

ATTRIBUTES = 
[ :id, :time, :direction, :lat, :lon, :route_id, :adherence ]
DIRECTIONS = 
{ "1" => "inbound",
"2" => "outbound" }.freeze

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(attributes = {}) ⇒ Bus

Returns a new instance of Bus.



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# File 'lib/hrt_bus/bus.rb', line 21

def initialize(attributes={})
  self.attributes = attributes
end

Class Method Details

.active_buses ⇒ Object 



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# File 'lib/hrt_bus/bus.rb', line 63

def self.active_buses
  buses = []
  curl = ::Curl::Easy.perform(HrtBus::Config.buses_uri) do |c|
    c.timeout = HrtBus::Config.timeout
  end

  unless curl.response_code == 226
    raise curl.response_code
  end

  parsed = ::CSV.new(curl.body_str, { :headers => true, :skip_blanks => true })

  parsed.each do |row|
    time, date, id, lat_lon, valid, adherence, route_id, direction  = row[0],
                                                           row[1],
                                                           row[2],
                                                           row[3],
                                                           row[4],
                                                           row[5],
                                                           row[7],
                                                           DIRECTIONS[row[8]]

    time     = HrtBus::Parse.time(time, date)
    lat, lon = HrtBus::Parse.geo(lat_lon)

    bus = new(:time      => time,
              :id        => id,
              :lat       => lat,
              :lon       => lon,
              :adherence => adherence,
              :route_id  => route_id,
              :route_id  => route_id,
              :direction => direction)

    buses << bus if bus.valid?
  end
  buses
end

.all ⇒ Object 



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# File 'lib/hrt_bus/bus.rb', line 102

def self.all
  buses = []
  curl = ::Curl::Easy.perform(HrtBus::Config.buses_uri) do |c|
    c.timeout = HrtBus::Config.timeout
  end

  unless curl.response_code == 226
    raise curl.response_code
  end

  parsed = ::CSV.new(curl.body_str, { :headers => true, :skip_blanks => true })

  parsed.each do |row|

    time, date, id, lat_lon, valid, adherence, route_id, direction  = row[0],
                                                           row[1],
                                                           row[2],
                                                           row[3],
                                                           row[4],
                                                           row[5],
                                                           row[7],
                                                           DIRECTIONS[row[8]]


    time     = HrtBus::Parse.time(time, date)
    lat, lon = HrtBus::Parse.geo(lat_lon)

    bus = new(:time      => time,
              :id        => id,
              :lat       => lat,
              :lon       => lon,
              :adherence => adherence,
              :route_id  => route_id,
              :route_id  => route_id,
              :direction => direction)

    buses << bus
  end
  buses
end

Instance Method Details

#attributes ⇒ Object 



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# File 'lib/hrt_bus/bus.rb', line 25

def attributes
  ATTRIBUTES.inject(ActiveSupport::HashWithIndifferentAccess.new) do |result, key|
    result[key] = read_attribute_for_validation(key)
    result
  end
end

#attributes=(attrs) ⇒ Object 



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# File 'lib/hrt_bus/bus.rb', line 32

def attributes=(attrs)
  attrs.each_pair do |k, v|
    send("#{k}=", v)
  end
end

#early? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/hrt_bus/bus.rb', line 42

def early?
  self.adherence < 0
end

#late? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/hrt_bus/bus.rb', line 50

def late?
  self.adherence > 0
end

#ontime? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/hrt_bus/bus.rb', line 46

def ontime?
  self.adherence == 0
end

#read_attribute_for_validation(key) ⇒ Object 



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# File 'lib/hrt_bus/bus.rb', line 38

def read_attribute_for_validation(key)
  send(key)
end

#static_map ⇒ Object 



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# File 'lib/hrt_bus/bus.rb', line 54

def static_map
  map = GoogleStaticMap.new(:width => 960, :height => 640)
  map.markers << MapMarker.new(:color => "blue",
                               :location => MapLocation.new(:latitude => self.lat,
                                                            :longitude => self.lon))

  map.get_map
end