network state is saved across app reboots

juice.py

@@ -3,6 +3,7 @@
 A hub for controlling IOT devices.
 """
 import re
+import copy
 import json
 
 import requests
@@ -92,11 +93,19 @@ class RelayOutlet:
 		return self
 
 
-def init_network():
+class DeviceEncoder(json.JSONEncoder):
+	"""
+	A custom json encoder for dumping devices to file.
+	"""
+	def default(self, o):
+		return vars(o)
+
+
+def init_network(filepath="devices.json"):
 	"""
 	Initializes the network of IOT devices.
 	"""
-	with open("devices.json", 'r') as file:
+	with open(filepath, 'r') as file:
 		data = file.read()
 	data = json.loads(data)
 	network = {}
@@ -111,6 +120,14 @@ def init_network():
 	return network
 
 
+def save_network(filepath="devices.json"):
+	"""
+	Dumps the network to file.
+	"""
+	with open(filepath, 'w') as file:
+		file.write(json.dumps(network, cls=DeviceEncoder, indent='\t'))
+
+
 app = Flask(__name__)
 network = init_network()
 
@@ -138,6 +155,7 @@ def toggle():
 	res = device.toggle(sub_dev_id)
 	if not res:
 		abort(404)
+	save_network()
 	return res