commit 3a0e53a8797c5d2c5ffc1844f964aee752ee92d3 Author: Loïc Prieto Date: Mon Jun 30 20:03:47 2025 +0200 Initial commit diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..6ed48a9 --- /dev/null +++ b/.gitignore @@ -0,0 +1,2 @@ +.env +node_modules diff --git a/MacroPlanner.js b/MacroPlanner.js new file mode 100644 index 0000000..a286cfe --- /dev/null +++ b/MacroPlanner.js @@ -0,0 +1,117 @@ +// MacroPlanner.js +// Node.js script skeleton for meal planning + nutritional analysis pipeline using USDA FoodData Central + +const fs = require('fs'); +const xlsx = require('xlsx'); +const axios = require('axios'); +require('dotenv').config(); + +// === CONFIG === +const EXCEL_FILE = 'plantilla_plan_comidas.xlsx'; +const SHEET_NAME = 'Semana 1'; +const OPENAI_API_KEY = process.env.OPENAI_API_KEY; +const USDA_API_KEY = process.env.USDA_API_KEY; + +// === STEP 1: Load Excel and parse meals === +function parseMealsFromExcel(filePath, sheetName) { + const workbook = xlsx.readFile(filePath); + const sheet = workbook.Sheets[sheetName]; + const json = xlsx.utils.sheet_to_json(sheet, { defval: '' }); + return json.map(row => ({ + dia: row['Día'], + desayuno: row['Desayuno'], + comida: row['Comida'], + cena: row['Cena'] + })); +} + +// === STEP 2: Call ChatGPT to extract ingredients === +async function getIngredientsFromMeal(description) { + const prompt = `Extrae los ingredientes clave con cantidades aproximadas de esta comida: "${description}". Devuélvelo como lista en JSON con nombre y cantidad.`; + + const response = await axios.post('https://api.openai.com/v1/chat/completions', { + model: 'gpt-4', + messages: [{ role: 'user', content: prompt }], + temperature: 0.2 + }, { + headers: { 'Authorization': `Bearer ${OPENAI_API_KEY}` } + }); + + const text = response.data.choices[0].message.content; + return JSON.parse(text); +} + +// === STEP 3: Use USDA API to get nutrient info === +async function getNutritionFromIngredients(ingredients) { + let totals = { protein: 0, carbs: 0, fat: 0 }; + + for (const item of ingredients) { + try { + const searchRes = await axios.get(`https://api.nal.usda.gov/fdc/v1/foods/search`, { + params: { + api_key: USDA_API_KEY, + query: item.nombre, + pageSize: 1 + } + }); + + const food = searchRes.data.foods[0]; + if (!food || !food.fdcId) continue; + + const foodRes = await axios.get(`https://api.nal.usda.gov/fdc/v1/food/${food.fdcId}`, { + params: { api_key: USDA_API_KEY } + }); + + for (const nutrient of foodRes.data.foodNutrients) { + if (nutrient.nutrientName === 'Protein') totals.protein += nutrient.value; + if (nutrient.nutrientName === 'Carbohydrate, by difference') totals.carbs += nutrient.value; + if (nutrient.nutrientName === 'Total lipid (fat)') totals.fat += nutrient.value; + } + } catch (error) { + console.warn(`Error retrieving data for ingredient: ${item.nombre}`, error.message); + } + } + + return totals; +} + +// === STEP 4: Combine and write back to Excel === +async function processAndWriteBack() { + const meals = parseMealsFromExcel(EXCEL_FILE, SHEET_NAME); + const updatedMeals = []; + + for (const entry of meals) { + const daySummary = { ...entry, protein: 0, carbs: 0, fat: 0 }; + + for (const meal of ['desayuno', 'comida', 'cena']) { + if (!entry[meal]) continue; + try { + const ingredients = await getIngredientsFromMeal(entry[meal]); + const macros = await getNutritionFromIngredients(ingredients); + daySummary.protein += macros.protein; + daySummary.carbs += macros.carbs; + daySummary.fat += macros.fat; + } catch (err) { + console.error(`Error processing ${entry.dia} - ${meal}:`, err); + } + } + + updatedMeals.push({ + 'Día': daySummary.dia, + 'Desayuno': entry.desayuno, + 'Comida': entry.comida, + 'Cena': entry.cena, + 'Proteínas (g)': daySummary.protein.toFixed(1), + 'Carbohidratos (g)': daySummary.carbs.toFixed(1), + 'Grasas (g)': daySummary.fat.toFixed(1) + }); + } + + const newSheet = xlsx.utils.json_to_sheet(updatedMeals); + const newBook = xlsx.utils.book_new(); + xlsx.utils.book_append_sheet(newBook, newSheet, SHEET_NAME); + xlsx.writeFile(newBook, 'resultado_macros.xlsx'); + console.log('Macros calculados y archivo actualizado: resultado_macros.xlsx'); +} + +processAndWriteBack(); diff --git a/package-lock.json b/package-lock.json new file mode 100644 index 0000000..e9ba21c --- /dev/null +++ b/package-lock.json @@ -0,0 +1,378 @@ +{ + "name": "macro-planner", + "version": "1.0.0", + "lockfileVersion": 3, + 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b/package.json new file mode 100644 index 0000000..0032b3e --- /dev/null +++ b/package.json @@ -0,0 +1,14 @@ +{ + "name": "macro-planner", + "version": "1.0.0", + "description": "Meal planning and macro tracking tool using OpenAI and USDA API", + "main": "MacroPlanner.js", + "scripts": { + "start": "node MacroPlanner.js" + }, + "dependencies": { + "axios": "^1.6.0", + "dotenv": "^16.3.1", + "xlsx": "^0.18.5" + } +} \ No newline at end of file