Jan Tuomi
44 lines
929 B
Python
44 lines
929 B
Python
from django.shortcuts import render
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from django.http import JsonResponse
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import datetime
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from .mqtt import get_latest
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import coffee_scale.mqtt # somehow this is needed
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def get_cups_from_weight(weight):
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if not weight:
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return 0
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EMPTY = 820 # grams
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FULL = 2000 # grams
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cups = 10 * (weight - EMPTY) / (FULL - EMPTY)
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cups = round(cups, 1)
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if cups < 0:
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cups = 0
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if cups > 10:
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cups = 10
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print("cups: ", cups, "weight: ", weight)
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return cups
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def coffee_view(request):
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return render(request, 'coffee.html')
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def cups_view(request):
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now = datetime.datetime.now()
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latest = get_latest()
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cups = get_cups_from_weight(latest.get('weight'))
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data = {
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'date': now,
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'cups': cups,
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'temp': latest.get('temp'),
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'last_brew': latest.get('last_brew'),
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'brewing': latest.get('brewing')
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}
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return JsonResponse(data)
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