api for packeta required to enable it

src/controllers/admin_shipping.rs

@@ -16,6 +16,7 @@ use crate::{
     shared::{
         guard,
         money::{format_price, parse_price_to_cents},
+        shipping as shipping_rules,
     },
 };
 
@@ -37,13 +38,17 @@ async fn index(
     State(ctx): State<AppContext>,
 ) -> Result<Response> {
     guard::current_admin(auth, &ctx).await?;
+    shipping_rules::disable_packeta_if_unconfigured(&ctx).await?;
     let methods = shipping_methods::Entity::find()
         .order_by_asc(shipping_methods::Column::Position)
         .all(&ctx.db)
         .await?;
+    let packeta_ready = shipping_rules::packeta_ready(&ctx);
     let rows: Vec<serde_json::Value> = methods
         .iter()
         .map(|m| {
+            let packeta_not_ready = m.carrier == "packeta" && !packeta_ready;
+            let locked = packeta_not_ready && !m.enabled;
             json!({
                 "id": m.id,
                 "code": m.code,
@@ -52,6 +57,9 @@ async fn index(
                 "carrier": m.carrier,
                 "requires_pickup_point": m.requires_pickup_point,
                 "enabled": m.enabled,
+                "packeta_not_ready": packeta_not_ready,
+                "locked": locked,
+                "lock_reason": if packeta_not_ready { Some("shipping-packeta-missing-settings") } else { None::<&str> },
             })
         })
         .collect();
@@ -74,9 +82,15 @@ async fn update(
         .one(&ctx.db)
         .await?
         .ok_or_else(|| Error::NotFound)?;
+    let requested_enabled = is_checked(&form.enabled);
+    if requested_enabled && method.carrier == "packeta" && !shipping_rules::packeta_ready(&ctx) {
+        return Err(Error::BadRequest(
+            "Packeta cannot be enabled until PACKETA_API_KEY, PACKETA_API_PASSWORD and PACKETA_SENDER_LABEL are configured.".to_string(),
+        ));
+    }
     let mut active = method.into_active_model();
     active.price_cents = Set(parse_price_to_cents(&form.price)?);
-    active.enabled = Set(is_checked(&form.enabled));
+    active.enabled = Set(requested_enabled);
     active.update(&ctx.db).await?;
     format::redirect("/admin/shipping")
 }