environment variable for unit cost

app.py

@@ -16,7 +16,7 @@ GPIO.setmode(GPIO.BCM)
 GPIO.setwarnings(False)
 
 db = SQLAlchemy(app)
-
+os.environ['cost_per_kWh'] = 0.1622
 
 # TODO: Move this into daily_usage class file
 class DailyUsage(db.Model):
@@ -44,7 +44,7 @@ if latest_entry:
     if latest_entry_date == datetime.today().date():
         daily_total = format(latest_entry.kwhUsed, '.7f')
 
-todays_cost = format(float(daily_total) * 0.1622, '0.5f')
+todays_cost = format(float(daily_total) * os.environ['cost_per_kWh'], '0.5f')
 
 # Create dictionary to store pin info
 pins = {
@@ -100,7 +100,7 @@ def toggle_pin(change_pin):
     else:
         daily_total = 0
 
-    todays_cost = format(float(daily_total) * 0.1622, '0.5f')
+    todays_cost = format(float(daily_total) * os.environ['cost_per_kWh'], '0.5f')
 
     template_data = {
         'pins': pins,
@@ -135,10 +135,11 @@ def create_entry(change_pin):
     pins[change_pin]['on_time'] = None
     pins[change_pin]['on_date'] = None
 
+
 @app.route('/handle_data', methods=['POST'])
 def handle_data():
-    projectpath = request.form['kWhprice']
-    print(projectpath)
+    new_price = request.form['kWhprice']
+    os.environ['cost_per_kWh'] = new_price
     template_data = {
         'pins': pins,
         'daily_total': daily_total,

templates/main.html

@@ -43,7 +43,7 @@
     </div>
     <div class="inputs">
         <form action="{{ url_for('handle_data') }}" method="post">
-            Cost per kWh: <input type="text" name="kWhprice">
+            Change cost per kWh: <input type="text" name="kWhprice">
             <input type="submit">
         </form>
     </div>