brewery-website/beer/extras.py

164 lines
4.4 KiB
Python

import base64
import json
from urllib.request import Request, urlopen
import logging
logger = logging.getLogger('django')
RECIPE_URL = 'https://api.brewfather.app/v2/recipes'
BATCH_URL = 'https://api.brewfather.app/v2/batches'
PULL_LIMIT = 50
BREWFATHER_CONVERT_LOOKUP = { # local_name: brewfather_name
'all': {
'name': 'name',
'unit_cost': 'costPerAmount',
'supplier': 'supplier',
'notes': 'notes',
'user_notes': 'userNotes',
},
'fermentable': {
'grain_category': 'grainCategory',
'fermentable_type': 'type',
'diastatic_power': 'diastaticPower',
'potential': 'potential',
'protein': 'protein',
'attenuation': 'attenuation',
'lovibond': 'lovibond',
'max_in_batch': 'maxInBatch',
'moisture': 'moisture',
'non_fermentable': 'notFermentable',
'ibu_per_unit': 'ibuPerAmount',
},
'hop': {
'ibu': 'ibu',
'use': 'use',
'hop_type': 'type',
'alpha': 'alpha',
},
'misc': {
'use': 'use',
'misc_type': 'type',
'water_adjustment': 'waterAdjustment',
}
}
def bf_from_local(category, name):
return BREWFATHER_CONVERT_LOOKUP[category][name]
def local_from_bf(category, name):
local_keys = list(BREWFATHER_CONVERT_LOOKUP[category].keys())
bf_keys = list(BREWFATHER_CONVERT_LOOKUP[category].values())
return local_keys[bf_keys.index(name)]
def get_batches(api_user, api_key, batch=''):
auth_string = api_user + ':' + api_key
auth64 = base64.b64encode(auth_string.encode("utf-8"))
if batch != '':
lastbatch = '&start_after=' + batch
else:
lastbatch = ''
qry_str = ('{batch_url}?limit={pull_limit}'
'&complete=True&include=recipe,recipe.batchSize'
'&status=Planning{last_batch}')
query = qry_str.format(
batch_url=BATCH_URL,
pull_limit=PULL_LIMIT,
last_batch=lastbatch
)
req = Request(query)
req.add_header('authorization', 'Basic ' + auth64.decode())
content = urlopen(req)
data = json.load(content)
if len(data) == PULL_LIMIT:
last_id = data[-1]['_id']
data = data + get_batches(batch=last_id)
return data
def sg_plato(sg):
"""Convert specific gravtiy to °P."""
sg = float(sg)
return (-1*616.868) + (1111.14*sg) - (630.272*sg**2) + (135.997*sg**3)
def plato_sg(plato):
"""Convert °P to specific gravtiy."""
return 1 + (plato / (258.6 - (plato/258.2) * 227.1))
def kg_extract(v, sg):
"""Calculate kg of extract based on volume and SG."""
return float(v) * float(sg) * sg_plato(sg)/100
def convert(value, start_unit, end_unit):
"""Convert units."""
family_dict = unit_family(start_unit)
if family_dict:
start = [val for key, val in family_dict.items()
if start_unit in key.split(',')][0]
end = [val for key, val in family_dict.items()
if end_unit in key.split(',')][0]
return float(value) * end / start
def unit_family(unit_name):
"""Find unit family base on unit name."""
unit_lookup = [
{'name': 'length',
'units': {
'm,meter,meters': 1.0,
'cm,centimeter,centimeters': 100,
'mm,millimeter,millimeters': 1000,
'in,inch,inches': 39.3701,
'yd,yard,yards': 1.09361,
'ft,foot,feet': 3.28084,
'mi,mile,miles': 0.000621371,
'km,killometer,killometers': .001,
}},
{'name': 'mass',
'units': {
'kg,kilogram,kilograms': 1.0,
'g,gram,grams': 1000,
'lb,pound,pounds': 2.20462,
'oz,ounce,ounces': 35.274,
'st,stone': 0.157473,
}},
{'name': 'volume',
'units': {
'l,liter,liters': 1.0,
'ml,milliliter,milliliters': 1000,
'floz,fluid ounce,fluid ounces': 33.814,
'cup,cups': 4.22675,
'qt,quart,quarts': 1.05669,
'gal,gallon,gallons': 0.264172,
'ft^3,cubic foot,cubic feet': 0.0353147,
'pt,pint,pints': 4.22675/2,
'tsp,teaspoon,teaspoons': 202.884,
'tbsp,tablespoon,tablespoons': 202.884/3,
}},
]
for family in unit_lookup:
if [key for key in family['units'] if unit_name in key.split(',')]:
return family['units']