meta options

backend/app/config.py

@@ -37,7 +37,11 @@ class Settings(BaseSettings):
     whatsapp_phone_number_id: str = ""
     whatsapp_business_account_id: str = ""
     meta_app_id: str = ""
+    meta_app_secret: str = ""
     meta_embedded_signup_config_id: str = ""
+    # Facebook Login for Business configuration. Do not reuse the WhatsApp Embedded Signup config.
+    meta_login_config_id: str = ""
+    meta_oauth_redirect_uri: str = ""
     whatsapp_business_phone: str = "919411257916"
     # Public HTTPS base for webhook callback (no trailing slash), e.g. https://urmiai.com
     public_api_base_url: str = ""
@@ -57,6 +61,26 @@ class Settings(BaseSettings):
         return [self.frontend_origin]
 
 
+    @computed_field  # type: ignore[prop-decorator]
+    @property
+    def meta_graph_app_secret(self) -> str:
+        return self.meta_app_secret or self.whatsapp_app_secret
+
+    @computed_field  # type: ignore[prop-decorator]
+    @property
+    def meta_oauth_redirect_uri_resolved(self) -> str:
+        if self.meta_oauth_redirect_uri.strip():
+            return self.meta_oauth_redirect_uri.strip()
+        base = self.public_api_base_url.rstrip("/") if self.public_api_base_url else ""
+        if base:
+            return f"{base}/api/v1/meta/oauth/callback"
+        return "http://localhost:8000/api/v1/meta/oauth/callback"
+
+    @computed_field  # type: ignore[prop-decorator]
+    @property
+    def meta_oauth_configured(self) -> bool:
+        return bool(self.meta_app_id and self.meta_graph_app_secret)
+
     @computed_field  # type: ignore[prop-decorator]
     @property
     def whatsapp_webhook_url(self) -> str: