Stops

stop.py

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+'''
+Provides all info from a stop
+'''
+
+from libs import get_data_from_json
+from time import time
+
+stop_schedule_url = 'http://plandynamique.infotbm.com/api/schedules?stop=%d'
+
+def get_stop_list ():
+	'''
+	Gets stop name after its number
+	'''
+	l = {}
+	
+	# Trams
+	data = get_data_from_json ('http://plandynamique.infotbm.com/api/file/trams.xml')
+	for i in data ['arret']:
+		n = []
+		if type (i ['ligne']) == dict:
+			n.append (int (i ['ligne'] ['StopPointExternalCode'].replace ('TBT', '')))
+		else:
+			for j in i ['ligne']:
+				n.append (int (j ['StopPointExternalCode'].replace ('TBT', '')))
+		for j in n:
+			l [j] = i ['nom']
+	#Bus
+	data = get_data_from_json ('http://plandynamique.infotbm.com/api/file/bus.xml')
+	for i in data ['arret']:
+		n = int (i ['StopPointExternalCode'].replace ('TBC', ''))
+		l [n] = i ['StopName']
+	
+	return (l)
+
+class Stop ():
+	'''
+	Gather stop informations
+	
+	data format as returned by infotbm:
+	[
+		{
+			origin: str, # source de l'information, BDSI tout le temps semble-t-il
+			type: str, # type de ligne (Bus, Tramway, Ferry)
+			message: str,
+			code: str, # nom de la ligne
+			name: str, # nom complet de la ligne
+			schedules: [
+				{
+					arrival: str,
+					arrival_commande: str,
+					arrival_theorique: str,
+					comment: str,
+					departure: str,
+					departure_commande: str,
+					departure_theorique: str,
+					destination_id: int,
+					destination_name: str,
+					origin: str,
+					realtime: int,
+					schedule_id: int,
+					trip_id: int,
+					updated_at: str, # last data update
+					vehicle_id: int,
+					vehicle_lattitude: float,
+					vehicle_longitude: float,
+					vehicle_position_updated_at: str, # last update from vehicle
+					waittime: str, # estimated wait time in %H:%M:%S format
+					waittime_text: str # human readable estimated wait time written in French
+				},
+			],
+		}
+	]
+	'''
+	
+	def __init__ (self, number, autoupdate_at_creation = True, autoupdate = False, autoupdate_delay = -1):
+		self.number = number
+		self.last_update = 0
+		self.data = None
+		if autoupdate_at_creation:
+			self.update ()
+	
+	def update (self, auto = False):
+		'''
+		Updates data
+		auto optionnal param is to set if a update is a automatic one, and must be performed as defined in autoupdate_delay variable
+		'''
+		self.data = get_data_from_json (stop_schedule_url % self.number)
+		if self.data == False:
+			self.data = None
+			self.last_update = 0
+		else:
+			self.last_update = time ()
+	
+	def data_age (self):
+		'''
+		Computes the data's age
+		'''
+		return (time () - self.last_update)
+	
+	def lines (self):
+		'''
+		List lines on the stop
+		Return unique indexes as known by the class
+		'''
+		return (list (range (0, len (self.data))))
+	
+	def get_line (self, line):
+		class Line ():
+			'''
+			Information about a line on a stop
+			'''
+			def __init__ (self, data):
+				self.data = data
+			
+			def number (self):
+				return (self.data ['code'])
+			
+			def name (self):
+				return (self.data ['name'])
+			
+			def vehicles_type (self):
+				return (self.data ['type'])
+			
+			def vehicles (self):
+				return (list (range (0, len (self.data ['schedules']))))
+			
+			def get_vehicle (self, vehicle):
+				class Vehicle ():
+					'''
+					Information about a vehicle
+					'''
+					def __init__ (self, data):
+						self.data = data
+					
+					def is_realtime (self):
+						return (self.data ['realtime'] == '1')
+					
+					def waittime (self):
+						return (self.data ['waittime'])
+					
+					def waittime_hr (self):
+						return (self.data ['waittime_text'])
+					
+					def destination (self):
+						return (self.data ['destination_name'])
+					
+					def number (self):
+						return (str (self.data ['vehicle_id']))
+					
+					def location (self):
+						try:
+							return (float (self.data ['vehicle_lattitude']), float (self.data ['vehicle_longitude']))
+						except:
+							return (None)
+				
+				return (Vehicle (self.data ['schedules'] [vehicle]))
+		
+		return (Line (self.data [line]))
+	
+
+if __name__ == '__main__':
+	stop_names = get_stop_list ()
+	for i in (3687, 1922, 5832):
+		print (str (i) + ' (' + stop_names [i] + ')')
+		s = Stop (i)
+		for j in s.lines ():
+			l = s.get_line (j)
+			print ('\t' + l.vehicles_type () + ' ' + l.number () + ' (' + l.name () + ')')
+			for k in l.vehicles ():
+				v = l.get_vehicle (k)
+				if v.is_realtime ():
+					print ('\t\t' + v.waittime_hr () + ' → ' + v.destination ())
+				else:
+					print ('\t\t~' + v.waittime_hr () + ' → ' + v.destination ())