Add BMR formula

src/config/activities.js

@@ -0,0 +1,11 @@
+const activityTypes = {
+  veryLow: 1.2,
+  low: 1.375,
+  medium: 1.55,
+  high: 1.725,
+  veryHigh: 1.9,
+};
+
+module.exports = {
+  activityTypes,
+};

src/config/genders.js

@@ -0,0 +1,8 @@
+const genderTypes = {
+  male: 'male',
+  female: 'female',
+}
+
+module.exports = {
+  genderTypes
+}

src/config/goals.js

@@ -0,0 +1,7 @@
+const goalTypes = {
+  loseWeight: 'lose_weight',
+  maintainWeight: 'maintain_weight',
+  putOnWeight: 'put_on_weight',
+};
+
+module.exports = { goalTypes };

src/controllers/meal.controller.js

@@ -11,8 +11,8 @@ const createMeal = catchAsync(async (req, res) => {
 });
 
 const getMeals = catchAsync(async (req, res) => {
-  const result = await mealService.getMealsByDate(req.user._id, req.query.date);
-  res.send(result);
+  const meals = await mealService.getMealsByDate(req.user._id, req.query.date);
+  res.send(meals);
 });
 
 const getAllMeals = catchAsync(async (req, res) => {

src/controllers/product.controller.js

@@ -17,7 +17,7 @@ const getProducts = catchAsync(async (req, res) => {
 });
 
 const getProduct = catchAsync(async (req, res) => {
-  const product = await productService.getProduct(req.params.productId);
+  const product = await productService.getProductById(req.params.productId);
   if (!product) {
     throw new ApiError(httpStatus.NOT_FOUND, 'Product not found');
   }

src/routes/v1/profile.route.js

@@ -9,7 +9,7 @@ const router = express.Router();
 router
   .route('/')
   .post(auth(), validate(profileValidation.createProfile), profileController.createProfile)
-.get(auth(), validate(profileValidation.getProfile), profileController.getProfile)
+  .get(auth(), validate(profileValidation.getProfile), profileController.getProfile)
   .patch(auth(), validate(profileValidation.updateProfile), profileController.updateProfile)
   .delete(auth(), validate(profileValidation.deleteProfile), profileController.deleteProfile);
 

src/services/meal.service.js

@@ -19,7 +19,7 @@ const getMealsByDate = async (userId, date) => {
       $gte: new Date(new Date(date).setHours(0, 0, 0)),
       $lt: new Date(new Date(date).setHours(23, 59, 59)),
     },
-  });
+  }).populate('products.product');
   return meals;
 };
 

src/services/profile.service.js

@@ -1,6 +1,8 @@
 const httpStatus = require('http-status');
 const { Profile } = require('../models');
 const ApiError = require('../utils/ApiError');
+const calculateWeeksToGetGoalWeight = require('../utils/weeksToGetGoalWeight');
+const dailyCaloricRequirement = require('../utils/dailyCaloricRequirement');
 
 const createProfile = async (profileBody) => {
   if (await Profile.hasUser(profileBody.userId)) {
@@ -16,7 +18,10 @@ const queryProfiles = async (filter, options) => {
 };
 
 const getProfileById = async (id) => {
-  return Profile.findById(id);
+  const profile = await Profile.findById(id);
+  console.log(dailyCaloricRequirement(profile));
+  console.log(calculateWeeksToGetGoalWeight(profile));
+  return profile
 };
 
 const getProfileByUserId = async (userId) => {

src/utils/birthdayToAge.js

@@ -0,0 +1,4 @@
+
+const birthdayToAge = (birthday) => Math.floor((new Date() - new Date(birthday).getTime()) / 3.15576e10);
+
+module.exports = birthdayToAge;

src/utils/dailyCaloricRequirement.js

@@ -0,0 +1,23 @@
+const birthdayToAge = require('./birthdayToAge');
+const { genderTypes } = require('../config/genders');
+const { goalTypes } = require('../config/goals');
+
+const calculateDailyCaloricRequirementFoWomen = ({ age, currentWeight, height, activity, extraCalories }) =>
+  Math.round((655 + (9.6 * currentWeight) + (1.8 * height) - (4.7 * age)) * activity + extraCalories)
+
+
+const calculateDailyCaloricRequirementFoMen = ({ age, currentWeight, height, activity, extraCalories }) =>
+  Math.round((66 + (13.7 * currentWeight) + (5 * height) - (6.8 * age)) * activity + extraCalories)
+
+const calculateDailyCaloricRequirement = ({ gender, goal, birthday, height, currentWeight, rateOfChange, activity }) => {
+  const age = birthdayToAge(birthday);
+
+  const extraCalories = (goal === goalTypes.putOnWeight ? rateOfChange : -rateOfChange) * 100;
+
+  const dailyCaloricRequirement =
+    gender === genderTypes.male ? calculateDailyCaloricRequirementFoMen : calculateDailyCaloricRequirementFoWomen;
+
+  return dailyCaloricRequirement({ age, currentWeight, height, activity, extraCalories });
+};
+
+module.exports = calculateDailyCaloricRequirement;

src/utils/weeksToGetGoalWeight.js

@@ -0,0 +1,8 @@
+
+const calculateWeeksToGetGoalWeight = ({ currentWeight, goalWeight, rateOfChange }) => {
+  const weightsDifference = Math.abs(goalWeight - currentWeight);
+  const weeksToGetGoalWeight = Math.round(weightsDifference / rateOfChange);
+  return weeksToGetGoalWeight;
+};
+
+module.exports = calculateWeeksToGetGoalWeight;

src/validations/profile.validation.js

@@ -1,16 +1,19 @@
 const Joi = require('joi');
 const { objectId } = require('./custom.validation');
+const { genderTypes } = require('../config/genders');
+const { goalTypes } = require('../config/goals');
+const { activityTypes } = require('../config/activities');
 
 const createProfile = {
   body: Joi.object().keys({
-    gender: Joi.string().required().valid('male', 'female'),
-    goal: Joi.string().required().valid('lose_weight', 'maintain_weight', 'put_on_weight'),
+    gender: Joi.string().required().valid(Object.values(genderTypes)),
+    goal: Joi.string().required().valid(Object.values(goalTypes)),
     birthday: Joi.date().required(),
     height: Joi.number().required(),
     currentWeight: Joi.number().required(),
     goalWeight: Joi.number().required(),
     rateOfChange: Joi.number().required(),
-    activity: Joi.number().required().valid(1.2, 1.375, 1.55, 1.725, 1.9),
+    activity: Joi.number().required().valid(Object.values(activityTypes)),
   }),
 };
 
@@ -33,14 +36,14 @@ const updateProfile = {
     profileId: Joi.required().custom(objectId),
   }),
   body: Joi.object().keys({
-    gender: Joi.string().required().valid('male', 'female'),
-    goal: Joi.string().required().valid('lose_weight', 'maintain_weight', 'put_on_weight'),
+    gender: Joi.string().required().valid(Object.values(genderTypes)),
+    goal: Joi.string().required().valid(Object.values(goalTypes)),
     birthday: Joi.date().required(),
     height: Joi.number().required(),
     currentWeight: Joi.number().required(),
     goalWeight: Joi.number().required(),
     rateOfChange: Joi.number(),
-    activity: Joi.number().required().valid(1.2, 1.375, 1.55, 1.725, 1.9),
+    activity: Joi.number().required().valid(Object.values(activityTypes)),
   }).min(1),
 };