This is a [Next.js](https://nextjs.org) project bootstrapped with [`create-next-app`](https://nextjs.org/docs/app/api-reference/cli/create-next-app). ## Getting Started First, run the development server: ```bash npm run dev # or yarn dev # or pnpm dev # or bun dev ``` Open [http://localhost:3000](http://localhost:3000) with your browser to see the result. ## Transactional email (Brevo SMTP) All application email is sent through Brevo SMTP with `nodemailer`. Configure these server-only environment variables: ```bash BREVO_SMTP_HOST=smtp-relay.brevo.com BREVO_SMTP_PORT=587 BREVO_SMTP_USER=your-brevo-smtp-login BREVO_SMTP_PASS=your-brevo-smtp-key MAIL_FROM_EMAIL=noreply@in.cambridgeveritas.com MAIL_FROM_NAME="Cambridge Veritas" OTP_FROM_EMAIL=otp@in.cambridgeveritas.com MAIL_REPLY_TO=contact@cambridgeveritas.com ``` `MAIL_FROM` remains supported as a legacy sender fallback. OTP emails use `OTP_FROM_EMAIL` when it is configured; all other messages use `MAIL_FROM_EMAIL`. Never add a `NEXT_PUBLIC_` prefix to email credentials. ## Registration security Password registration uses Cloudflare Turnstile followed by a six-digit email OTP. Configure these environment variables in production: ```bash NEXT_PUBLIC_TURNSTILE_SITE_KEY= TURNSTILE_SECRET_KEY= TURNSTILE_ALLOWED_HOSTNAMES=cambridgeveritas.com,www.cambridgeveritas.com EMAIL_OTP_SECRET= EMAIL_OTP_EXPIRY_MINUTES=10 EMAIL_OTP_RESEND_COOLDOWN_SECONDS=60 EMAIL_OTP_MAX_ATTEMPTS=5 REGISTRATION_OTP_EMAIL_TEMPLATE=otp ``` The Turnstile secret and OTP secret are server-only and must never use a `NEXT_PUBLIC_` prefix. Development falls back to Cloudflare's official test keys. Run `scripts/migrations/20260825_registration_security.sql` before deploying the registration flow to an existing database. ## Zoho CRM Contact-us enquiries are saved to the `contact_enquiries` MySQL table before being upserted into the Zoho CRM `Leads` module. Configure these server-only environment variables: ```bash ZOHO_CRM_ENABLED=true ZOHO_REFRESH_TOKEN= ZOHO_CLIENT_ID= ZOHO_CLIENT_SECRET= ZOHO_ACCOUNTS_BASE_URL=https://accounts.zoho.in ZOHO_CRM_BASE_URL=https://www.zohoapis.in/crm/v7 ZOHO_CRM_MODULE=Leads ``` The contact form maps `First_Name`, `Last_Name`, `Phone`, `Email`, and `Description`, with `Lead_Source=Website` and `Lead_Type=Contact`. Zoho credentials must never use a `NEXT_PUBLIC_` prefix. CVAT, CVTE, and CVIM introduction-class registrations are also saved to their MySQL registration table before Zoho is called. They use `Lead_Source=Website` and the matching `Lead_Type` (`Introduction class CVAT`, `Introduction class CVTE`, or `Introduction class CVIM`). Run `scripts/migrations/20260727_intro_class_zoho_sync.sql` once on an existing database; the application also adds the sync-tracking columns defensively when an introduction-class registration is submitted. The same Lead is upserted again after introduction-class attendance, rescheduling, or cancellation. `Attendance` is stored as `0` for a current booking, `1` after joining, and `Cancelled` after cancellation. Rescheduling also replaces the webinar ID, session date/time, and attendee URLs in Zoho. All course level-test submissions are saved to `level_test_result` before the Zoho upsert and use `Lead_Source=Website` with `Lead_Type=Level test`. The CRM ID and delivery result are retained in the existing `crmid` and `response` columns. VNA Professionals partnership enquiries are saved to `vna_partnership_enquiries` before Zoho is called. They use `Lead_Source=Website` and `Lead_Type=Vnaprofessionals`, together with the institution, role, country, estimated students, preferred call time, and placement challenges. Run `scripts/migrations/20260727_vna_professionals_zoho_sync.sql` on an existing database; the submission route also creates missing sync columns defensively. ## Speech analyzer Python dependencies Pitch, pace, pause, and hesitation analysis runs in Python. Install and verify its dependencies with the same operating-system account that runs the Next.js service: ```bash npm run speech:python-deps npm run speech:python-deps:check ``` The installer and the application both prefer `python3` on Linux and `python` on Windows. To use a virtual environment in production, create it once and set `SPEECHSUPER_PYTHON_BINARY` in the service environment before installing: ```bash cd /var/www/html python3 -m venv .venv SPEECHSUPER_PYTHON_BINARY=/var/www/html/.venv/bin/python npm run speech:python-deps ``` Keep `SPEECHSUPER_PYTHON_BINARY=/var/www/html/.venv/bin/python` configured for the running Next.js service, and restart the service after installation. Automatic speech-result prompt analysis uses OpenAI exclusively. Configure `OPENAI_API_KEY` and, optionally, `OPENAI_MODEL`; credentials for other AI providers are not used when generating user speech results. You can start editing the page by modifying `app/page.tsx`. The page auto-updates as you edit the file. This project uses [`next/font`](https://nextjs.org/docs/app/building-your-application/optimizing/fonts) to automatically optimize and load [Geist](https://vercel.com/font), a new font family for Vercel. ## Learn More To learn more about Next.js, take a look at the following resources: - [Next.js Documentation](https://nextjs.org/docs) - learn about Next.js features and API. - [Learn Next.js](https://nextjs.org/learn) - an interactive Next.js tutorial. You can check out [the Next.js GitHub repository](https://github.com/vercel/next.js) - your feedback and contributions are welcome! ## Deploy on Vercel The easiest way to deploy your Next.js app is to use the [Vercel Platform](https://vercel.com/new?utm_medium=default-template&filter=next.js&utm_source=create-next-app&utm_campaign=create-next-app-readme) from the creators of Next.js. Check out our [Next.js deployment documentation](https://nextjs.org/docs/app/building-your-application/deploying) for more details.