created checkpoint for backup

.github/workflows/main_nutriback.yml

@@ -0,0 +1,84 @@
+# Docs for the Azure Web Apps Deploy action: https://github.com/Azure/webapps-deploy
+# More GitHub Actions for Azure: https://github.com/Azure/actions
+
+name: Build and deploy Node.js app to Azure Web App - nutriback
+
+on:
+  push:
+    branches:
+      - main
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: windows-latest
+    permissions:
+      contents: read #This is required for actions/checkout
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Node.js version
+        uses: actions/setup-node@v3
+        with:
+          node-version: '18.x'
+
+      - name: npm install, build, and test
+        run: |
+          # Build frontend
+          cd frontend
+          npm install
+          npm run build --if-present
+
+          # Build backend
+          cd ../backend
+          npm install
+          npm run build --if-present
+
+      - name: Upload artifact for deployment job
+        uses: actions/upload-artifact@v4
+        with:
+          name: node-app
+          path: .
+          if-no-files-found: error
+
+      - name: Verify artifact structure
+        run: ls -R
+  # deploy:
+  #   runs-on: ubuntu-latest
+  #   needs: build
+  #   environment:
+  #     name: 'Production'
+  #     url: ${{ steps.deploy-to-webapp.outputs.webapp-url }}
+  #   permissions:
+  #     id-token: write #This is required for requesting the JWT
+  #     contents: read #This is required for actions/checkout
+
+  #   steps:
+  #     - name: Download artifact from build job
+  #       uses: actions/download-artifact@v4
+  #       with:
+  #         name: node-app
+  #         path: .
+  #     # - name: Verify directory structure
+  #     #   run: ls -R backend
+  #     - name: Login to Azure
+  #       uses: azure/login@v2
+  #       with:
+  #         client-id: ${{ secrets.AZUREAPPSERVICE_CLIENTID_C2BA3F7D4AB049E2B0647734EB5864AF }}
+  #         tenant-id: ${{ secrets.AZUREAPPSERVICE_TENANTID_2AE5CA2A4AC04D8F82224F60376CE03E }}
+  #         subscription-id: ${{ secrets.AZUREAPPSERVICE_SUBSCRIPTIONID_B38416D7C22E4DE297FCB4E97729CF9A }}
+
+  #     - name: 'Deploy to Azure Web App'
+  #       uses: azure/webapps-deploy@v3
+  #       id: deploy-to-webapp
+  #       with:
+  #         app-name: 'nutriback'
+  #         slot-name: 'Production'
+  #         package: .
+  #     - name: Configure Azure to start app
+  #       run: |
+  #         # Azure automatically runs 'npm start' if it's specified in your package.json
+  #         echo "Setting up Node.js app to run automatically..."
+  #         echo "node -v"  # Optional: To check node version (confirm it’s installed)
+  #         echo "npm start"  # This is automatically triggered by Azure on deployment

.gitignore

@@ -0,0 +1 @@
+*/service_account.json

README.md

@@ -1 +1,85 @@
-# NutriGuide_ai
+# NutriGuide AI
+
+[![Vercel Deployment](https://img.shields.io/badge/Vercel-nutriguideai.vercel.app-black?style=for-the-badge&logo=vercel)](https://nutriguideai.vercel.app/)
+
+NutriGuide AI is an intelligent nutrition assistant designed to provide personalized dietary guidance. It leverages the power of a powerful AI model to deliver meal plans, workout routines, and health summaries tailored to your unique medical data and preferences.
+
+**Live Demo:** [nutriguideai.vercel.app](https://nutriguideai.vercel.app/)
+
+## Key Features
+
+*   **AI-Powered Chatbot:** Get instant answers to your nutrition and fitness questions with our intelligent, streaming chatbot.
+*   **Personalized Diet Plans:** Receive custom 7-day diet plans based on your medical data, location, and dietary preferences.
+*   **Custom Workout Plans:** Get personalized 7-day workout plans that take into account your fitness level, goals, and medical history.
+*   **AI Health Summary:** Get a comprehensive, AI-generated summary of your health based on your medical records.
+*   **Secure Data Management:** All your data is securely stored in a unified MongoDB database.
+
+## Architecture
+
+### Frontend
+
+The frontend is a modern, responsive single-page application built with React and Vite. For more details, see the [frontend README](./frontend/README.md).
+
+### Backend
+
+The backend is a robust Node.js application built with Express. It uses MongoDB for data storage and the Google Vertex AI SDK to interact with the AI model. For more details, see the [backend README](./backend/README.md).
+
+### System Architecture Diagram
+
+```mermaid
+graph TD
+    A[User] -->|Interacts with| B(React Frontend);
+    B -->|API Calls| C(Node.js Backend);
+    C -->|Queries| D(MongoDB);
+    C -->|Prompts| E(AI API);
+    E -->|Responses| C;
+    D -->|Data| C;
+```
+
+### Database Schema
+
+```mermaid
+erDiagram
+    User {
+        string name
+        string email
+        string password
+        date dob
+        number weight
+        number height
+        string gender
+    }
+
+    MedicalData {
+        string email
+        object complete_blood_count
+        object lipid_panel
+        object liver_function
+        object kidney_function
+        object blood_sugar
+        object thyroid_function
+        object vitamin_levels
+        object inflammatory_markers
+        object coagulation_tests
+        object cancer_markers
+        string ai_health_summary
+    }
+
+    MealPlan {
+        string email
+        string plan
+    }
+
+    WorkoutPlan {
+        string email
+        string plan
+    }
+
+    User ||--o{ MedicalData : "has"
+    User ||--o{ MealPlan : "has"
+    User ||--o{ WorkoutPlan : "has"
+```
+
+## Deployment
+
+The application can be configured for continuous deployment to Azure Web App using GitHub Actions. The workflow can be defined in `.github/workflows/main_nutriback.yml`.

backend/.gitignore

@@ -0,0 +1,138 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+.pnpm-debug.log*
+
+# Diagnostic reports (https://nodejs.org/api/report.html)
+report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+*.lcov
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (https://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# Snowpack dependency directory (https://snowpack.dev/)
+web_modules/
+
+# TypeScript cache
+*.tsbuildinfo
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional stylelint cache
+.stylelintcache
+
+# Microbundle cache
+.rpt2_cache/
+.rts2_cache_cjs/
+.rts2_cache_es/
+.rts2_cache_umd/
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variable files
+.env
+.env.development.local
+.env.test.local
+.env.production.local
+.env.local
+
+# parcel-bundler cache (https://parceljs.org/)
+.cache
+.parcel-cache
+
+# Next.js build output
+.next
+out
+
+# Nuxt.js build / generate output
+.nuxt
+dist
+
+# Gatsby files
+.cache/
+# Comment in the public line in if your project uses Gatsby and not Next.js
+# https://nextjs.org/blog/next-9-1#public-directory-support
+# public
+
+# vuepress build output
+.vuepress/dist
+
+# vuepress v2.x temp and cache directory
+.temp
+.cache
+
+# vitepress build output
+**/.vitepress/dist
+
+# vitepress cache directory
+**/.vitepress/cache
+
+# Docusaurus cache and generated files
+.docusaurus
+
+# Serverless directories
+.serverless/
+
+# FuseBox cache
+.fusebox/
+
+# DynamoDB Local files
+.dynamodb/
+
+# TernJS port file
+.tern-port
+
+# Stores VSCode versions used for testing VSCode extensions
+.vscode-test
+
+# yarn v2
+.yarn/cache
+.yarn/unplugged
+.yarn/build-state.yml
+.yarn/install-state.gz
+.pnp.*
+.env
+config/serviceAccountKey.json

backend/README.md

@@ -0,0 +1,58 @@
+# NutriGuide AI - Backend
+
+This is the backend for the NutriGuide AI application, a robust Node.js application built with Express.
+
+## Key Features
+
+*   **AI Integration:** Uses the Google Vertex AI SDK to interact with a powerful AI model for generating personalized diet plans, workout routines, and health summaries.
+*   **Secure Data Management:** All user data is securely stored in a unified MongoDB database.
+*   **RESTful API:** Provides a comprehensive RESTful API for the frontend to consume.
+
+## Setup and Installation
+
+### Prerequisites
+
+*   Node.js (v18.x or later)
+*   npm
+*   A Google Cloud Platform project with the Vertex AI API enabled
+*   A service account with the "Vertex AI User" role
+
+### Installation
+
+1.  **Navigate to the `backend` directory:**
+    ```bash
+    cd backend
+    ```
+2.  **Install dependencies:**
+    ```bash
+    npm install
+    ```
+3.  **Create a `.env` file** and add the following environment variables:
+    ```
+    MONGO_URI="your_mongodb_connection_string"
+    GOOGLE_APPLICATION_CREDENTIALS="path/to/your/service_account.json"
+    GCP_PROJECT_ID="your_gcp_project_id"
+    GCP_LOCATION="your_gcp_location"
+    FIREBASE_TYPE="service_account"
+    FIREBASE_PROJECT_ID="your_firebase_project_id"
+    FIREBASE_PRIVATE_KEY_ID="your_firebase_private_key_id"
+    FIREBASE_PRIVATE_KEY="your_firebase_private_key"
+    FIREBASE_CLIENT_EMAIL="your_firebase_client_email"
+    FIREBASE_CLIENT_ID="your_firebase_client_id"
+    FIREBASE_AUTH_URI="https://accounts.google.com/o/oauth2/auth"
+    FIREBASE_TOKEN_URI="https://oauth2.googleapis.com/token"
+    FIREBASE_AUTH_PROVIDER_X509_CERT_URL="https://www.googleapis.com/oauth2/v1/certs"
+    FIREBASE_CLIENT_X509_CERT_URL="your_firebase_client_x509_cert_url"
+    FIREBASE_UNIVERSE_DOMAIN="googleapis.com"
+    ```
+4.  **Start the server:**
+    ```bash
+    npm start
+    ```
+
+## Available Scripts
+
+*   `npm start`: Runs the app in production mode.
+*   `npm run dev`: Runs the app in development mode with nodemon.
+*   `npm test`: Placeholder for tests.
+*   `npm run build`: Placeholder for a build step.

backend/config/db.js

@@ -0,0 +1,22 @@
+import mongoose from 'mongoose';
+import dotenv from 'dotenv';
+
+dotenv.config();
+
+const connectDB = async () => {
+  try {
+    await mongoose.connect(process.env.MONGO_URI, {
+      useNewUrlParser: true,
+      useUnifiedTopology: true,
+      maxPoolSize: 10, // Set the maximum number of connections in the pool
+      serverSelectionTimeoutMS: 5000, // Keep trying to send operations for 5 seconds
+      socketTimeoutMS: 45000, // Close sockets after 45 seconds of inactivity
+    });
+    console.log('✅ Connected to MongoDB with connection pooling.');
+  } catch (err) {
+    console.error('❌ Failed to connect to MongoDB:', err.message);
+    process.exit(1);
+  }
+};
+
+export default connectDB;