Nutrition facts: check values before sending them

[g123k]

Hi everyone,

Currently, we don't check what is in the nutrition screen, whereas on the website we have multiple checks.

Tasks

Beta Give feedback

1. Ensure the relation between kJ / kCal is correct
2. Energy should not exceed 3800 kJ
3. Fat should not exceed 100g (if it's per 100g)
4. Saturated fat should not exceed fat
5. Carbohydrates should not exceed 100g (if it's per 100g)
6. Sugars fat should not exceed carbohydrates
7. Fibers should not exceed 100g (if it's per 100g)
8. Proteins should not exceed 100g (if it's per 100g)
9. Compute sodium / salt
10. Generally speaking, all items shouldn't exceed 100g, it's per 100g

[monsieurtanuki]

Energy should not exceed 3800 kJ

Yes it should: I eat what I want to eat! 😉

[teolemon]

Asked Gemini Advanced to give it a first jab

import 'dart:math';

/// Check the relation between kJ and kCal
bool isValidEnergyRelation(double kJ, double kCal) {
  // The relation should be approximately 4.184 kJ per kCal
  double expectedKCal = kJ / 4.184;
  return (kCal - expectedKCal).abs() <= 0.1; // Allow small tolerance
}

/// Ensure energy does not exceed 3800 kJ
bool isValidEnergy(double kJ) {
  return kJ <= 3800;
}

/// Ensure fat does not exceed 100g
bool isValidFat(double fat) {
  return fat <= 100;
}

/// Ensure saturated fat does not exceed total fat
bool isValidSaturatedFat(double saturatedFat, double fat) {
  return saturatedFat <= fat;
}

/// Ensure carbohydrates do not exceed 100g
bool isValidCarbohydrates(double carbohydrates) {
  return carbohydrates <= 100;
}

/// Ensure sugars do not exceed total carbohydrates
bool isValidSugars(double sugars, double carbohydrates) {
  return sugars <= carbohydrates;
}

/// Ensure fibers do not exceed 100g
bool isValidFibers(double fibers) {
  return fibers <= 100;
}

/// Ensure proteins do not exceed 100g
bool isValidProteins(double proteins) {
  return proteins <= 100;
}

/// Compute sodium from salt and check if it's valid
double computeSodium(double salt) {
  return salt * 0.393; // 39.3% of salt is sodium
}

bool isValidSalt(double salt) {
  return salt <= 2.5;
}

/// Generic function to check if a nutrient does not exceed 100g
bool isValidNutrient(double nutrient) {
  return nutrient <= 100;
}