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user.py
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user.py
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import json
from dotenv import *
import os
from openfoodfacts import *
import requests
import urllib
load_dotenv(find_dotenv())
SECRET_KEY = os.getenv("FDC_API_KEY")
def calculate_initial_nutrients(user):
sex = user['sex']
weight = user['weight']
if sex == "Male":
nutrients = {
'protein_remaining' : {
'min' : 95.0,
'max' : 165.0,
'unit' : 'g'
},
'calories_remaining' : {
'min' : (weight * 35.0),
'max' : (weight * 47.0),
'unit' : 'kcal'
},
'vitamin_c_remaining' : {
'min' : 75.0,
'unit' : 'mg'
},
'vitamin_d_remaining' : {
'min' : 15.0,
'unit' : 'mcg'
},
'calcium_remaining' : {
'min' : 1000.0,
'max' : 1200.0,
'unit' : 'mg'
},
'iron_remaining' : {
'min' : 8.7,
'unit' : 'g'
},
'vitamin_a_remaining' : {
'min' : 900,
'unit' : 'mcg'
}
}
elif sex == "Female":
nutrients = {
'calories_remaining' : {
'min' : weight * 35.0,
'max' : weight * 47.0,
'unit' : 'kcal'
},
'protein_remaining' : {
'min' : 95.0,
'max' : 165.0,
'unit' : 'g'
},
'vitamin_c_remaining' : {
'min' : 95.0,
'unit' : 'mg'
},
'vitamin_d_remaining' : {
'min' : 15.0,
'unit' : 'mcg'
},
'calcium_remaining' : {
'min' : 1000.0,
'max' : 1200.0,
'unit' : 'mg'
},
'iron_remaining' : {
'min' : 14.8,
'unit' : 'g'
},
'vitamin_a_remaining' : {
'min' : 700,
'unit' : 'mcg'
}
}
return nutrients
def search_items(query):
response = requests.get('https://api.nal.usda.gov/fdc/v1/foods/search?api_key=' + SECRET_KEY + '&query=' + query)
response.encoding = 'utf-8'
return response
def get_fdcid_info(fdcid):
product = requests.get('https://api.nal.usda.gov/fdc/v1/food/' + fdcid + '?api_key=' + SECRET_KEY)
product = product.json()
NUTRIENT_LIST = {
"Energy": "calories",
"Protein": "proteins",
"Vitamin C, total ascorbic acid" : "vitamin_c",
"Calcium, Ca" : "calcium",
"Vitamin D (D2 + D3), International Units" : "vitamin_d",
"Vitamin D (D2 + D3)" : "vitamin_d",
"Iron, Fe" : "iron",
"Vitamin A, IU" : "vitamin_a",
"Vitamin A, RAE" : "vitamin_a"
}
product_info = {
"code": product.get("fdcId"),
"type": "fdcid",
"product": {
"generic_name": product.get("description"),
"product_name": product.get("description"), #both same
# "quantity": fdcid doesn't have product quantity
"brands": product.get("brandOwner"),
"serving_quantity": product.get("servingSize"),
"serving_quantity_unit" : product.get("servingSizeUnit"),
"nutriments" : {
"calories" : 0,
"proteins" : 0,
"vitamin_c" : 0,
"vitamin_d" : 0,
"calcium" : 0,
"iron" : 0,
"vitamin_a" : 0
},
"units" : {
"calories": "Cal",
"proteins" : "",
"vitamin_c" : "",
"vitamin_d" : "mcg",
"calcium" : "",
"iron" : "mg",
"vitamin_a" : "mcg"
}
}
}
for entry in product["foodNutrients"]:
nutrient = entry['nutrient']
if nutrient['name'] in NUTRIENT_LIST:
if(nutrient['name'] == "Vitamin D (D2 + D3), International Units"):
entry['amount'] /= 40
if(nutrient['name'] == "Vitamin A, IU"):
entry['amount'] /= 1.5
product_info['product']['nutriments'][NUTRIENT_LIST[nutrient['name']]] = entry['amount']
if(nutrient['name'] != "Energy" and nutrient['name'] != "Vitamin D (D2 + D3), International Units" and nutrient['name'] != "Vitamin A, IU"):
product_info['product']['units'][NUTRIENT_LIST[nutrient['name']]] = entry['nutrient']['unitName']
return product_info
def update_nutrients(item, nutrients, modifier=1):
m = modifier
item['proteins'] = item.get('proteins', 0) * m
nutrients['protein_remaining']['min'] -= item.get('proteins', 0)
nutrients['protein_remaining']['max'] -= item.get('proteins', 0)
item['calories'] = item.get('calories', 0) * m
nutrients['calories_remaining']['min'] -= item.get('calories', 0)
nutrients['calories_remaining']['max'] -= item.get('calories', 0)
item['vitamin_c'] = item.get('vitamin_c', 0) * m
nutrients['vitamin_c_remaining']['min'] -= item.get('vitamin_c', 0)
item['vitamin_d'] = item.get('vitamin_d', 0) * m
nutrients['vitamin_d_remaining']['min'] -= item.get('vitamin_d', 0)
item['calcium'] = item.get('calcium', 0) * m
nutrients['calcium_remaining']['min'] -= item.get('calcium', 0)
nutrients['calcium_remaining']['max'] -= item.get('calcium', 0)
item['iron'] = item.get('iron', 0) * m
nutrients['iron_remaining']['min'] -= item.get('iron', 0)
item['vitamin_a'] = item.get('vitamin_a', 0) * m
nutrients['vitamin_a_remaining']['min'] -= item.get('vitamin_a', 0)
return nutrients
def fetch_item_barcode(barcode):
product = openfoodfacts.products.get_product(barcode)["product"]
item = {}
item['calories'] = product["nutriments"].get("energy-kcal", 0)
item['proteins'] = product["nutriments"].get("proteins_value", 0)
item['vitamin_c'] = product["nutriments"].get("vitamin-c_value", 0)
item['vitamin_d'] = product["nutriments"].get("vitamin-d_value", 0)
item['calcium'] = product["nutriments"].get("calcium_value", 0)
item['iron'] = product["nutriments"].get("iron_value", 0)
item['vitamin_a'] = product["nutriments"].get("vitamin-a_value", 0)
return item
def fetch_item_fdcid(fdcid):
product = requests.get('https://api.nal.usda.gov/fdc/v1/food/' + fdcid + '?api_key=' + SECRET_KEY)
product = product.json()
item = {}
NUTRIENT_LIST = {
"Energy": "calories",
"Protein": "proteins",
"Vitamin C, total ascorbic acid" : "vitamin_c",
"Calcium, Ca" : "calcium",
"Vitamin D (D2 + D3), International Units" : "vitamin_d",
"Vitamin D (D2 + D3)" : "vitamin_d",
"Iron, Fe" : "iron",
"Vitamin A, IU" : "vitamin_a",
"Vitamin A, RAE" : "vitamin_a"
}
for entry in product["foodNutrients"]:
nutrient = entry['nutrient']
if nutrient['name'] in NUTRIENT_LIST:
if(nutrient['name'] == "Vitamin D (D2 + D3), International Units"):
entry['amount'] /= 40
if(nutrient['name'] == "Vitamin A, IU"):
entry['amount'] /= 1.5
item[NUTRIENT_LIST[nutrient['name']]] = entry["amount"]
return item
def add_item_barcode(barcode, nutrients):
item = fetch_item_barcode(barcode)
return update_nutrients(item, nutrients)
def add_item_fdcid(fdcid, nutrients):
item = fetch_item_fdcid(fdcid)
return update_nutrients(item, nutrients)
def delete_item_barcode(barcode, nutrients):
item = fetch_item_barcode(barcode)
return update_nutrients(item, nutrients, -1)
def delete_item_fdcid(fdcid, nutrients):
item = fetch_item_fdcid(fdcid)
return update_nutrients(item, nutrients, -1)