WhatsApp automation app on Vareons: install, connect, templates, and order confirmation

The app installs from the /dashboard/apps marketplace with an Install button on the "WhatsApp automation" card marked Featured, after which an Open button leads to /dashboard/whatsapp. The card itself shows the localized name, the Vareons developer name, the description about connecting WhatsApp Business with order confirmations and automatic messages, and a Free price badge.

Inside the app, the page starts with the "Smart WhatsApp" heading plus a terms-and-privacy checkbox, then the "Connect WhatsApp" button, which stays disabled until terms are accepted and the NEXT_PUBLIC_FACEBOOK_APP_ID and NEXT_PUBLIC_WHATSAPP_CONFIG_ID variables exist over HTTPS. Pressing it redirects the whole page to the OAuth dialog on facebook.com using the current graph version with the config_id parameter and state kept in sessionStorage, then returns with a code that is posted with the redirect_uri to POST /api/whatsapp/callback.

After connecting, each account card shows its status (Active or Disconnected) and connection date plus a "View details" button that fetches GET /api/whatsapp/account-details?phoneNumberId= and opens a dialog with three panels: number overview, webhook health, and templates with a "Redeploy templates now" button calling POST /api/whatsapp/redeploy-templates. The "Resync webhooks" button calls POST /api/whatsapp/subscribe-webhooks to repair the subscription and callback URL, and the red "Disconnect" button asks for browser confirmation before POST /api/whatsapp/disconnect with the phone number id.

Order-confirmation settings appear only when an account is connected: a dialog with an enable-confirmation switch and an Arabic-or-English language choice, saved through POST /api/whatsapp/order-confirmation-settings. When an order is created, the matching template (order_confirmation_ar or en) is sent, and customer replies (confirm, cancel, or edit) arrive through the webhook to update WhatsAppOrderConfirmation records and the order status.

Data is stored in the WhatsAppAccount (keyed by merchant plus phone number id), WhatsAppTemplate, WhatsAppChat, WhatsAppMessage, and WhatsAppOrderConfirmation models, while the logic lives in twenty-four files under lib/whatsapp covering the service, access token, account details, template parameters, webhook processing, signature, callback-URL building, and diagnostics.