gem 'dvb'

# Don't forget to require dvb
require 'dvb'

# Calling the following will return a list of DVB::Departure objects
# encapsulating information about upcoming departures at the given stop. 
# I've also gone ahead and filtered out departures that do not have "3" 
# as their line identifier.

deps = DVB.monitor('albertplatz').select { |d| d.line == '3' }
puts deps
# 3 Coschütz @ 2016-08-29 17:57:58 +0200
# 3 Wilder Mann @ 2016-08-29 18:03:58 +0200
# 3 Coschütz @ 2016-08-29 18:07:58 +0200
# ...

# The second optional parameter sets a time offset into the future, 
# default is 0. The third optional parameter limits the amount of results, 
# default is as many as possible.

deps = DVB.monitor('albertplatz', 10, 2)
puts deps
# 8 Südvorstadt @ 2016-08-29 18:30:00 +0200
# 6 Wölfnitz @ 2016-08-29 18:31:00 +0200

# You can also use dvb to find stops using two different methods. Either
# look them up by name or via coordinates. DVB::Stop objects include an id, 
# latitude, longitude, name, region and tarif_zones amongst other info.

# The second optional param is the region. It defaults to Dresden.
stops = DVB.find('helmh', 'Dresden')
puts stops
# Helmholtzstraße, Dresden

# The third optional param here is the searchradius in meters. 
# It defaults to 500.
stops = DVB.find_near(51.063313, 13.746748, 500)
puts stops
# Bautzner Straße / Rothenburger Straße, Dresden
# Albertplatz, Dresden
# Bahnhof Neustadt, Dresden