1 files changed, 38 insertions, 1 deletions
diff --git a/assets/js/cepis-woocommerce-blocks.js b/assets/js/cepis-woocommerce-blocks.js
index bcbab93..4f4e2e3 100644
--- a/assets/js/cepis-woocommerce-blocks.js
+++ b/assets/js/cepis-woocommerce-blocks.js
@@ -131,6 +131,37 @@
   }
 
   /**
+   * Say which municipality a CEP that does not exist would have been in.
+   *
+   * Replaces the notice already on screen — same id, so the block swaps the
+   * text rather than stacking a second error. The failure is reported
+   * immediately and refined a round trip later, because making the shopper wait
+   * on a second request before being told anything at all is worse than the
+   * message improving under them.
+   *
+   * Nothing here goes near `apply()`. A CEP the Correios do not have has no
+   * address, and the municipality in a 404 is a guess about which digit went
+   * wrong, not a place to ship to.
+   *
+   * @param {string} name Section name, `shipping` or `billing`.
+   * @param {string} digits The CEP that was not found.
+   * @param {string} shown The message already in the notice area.
+   */
+  function explain(name, digits, shown) {
+    var helper = window.cepisWooCommerceFaixa;
+
+    if (!helper) {
+      return;
+    }
+
+    helper.message(digits, shown, function (message) {
+      if (message !== shown && progress[name].cep === digits) {
+        announce(message);
+      }
+    });
+  }
+
+  /**
    * Write a resolved address into the store.
    *
    * @param {string} name Section name, `shipping` or `billing`.
@@ -185,7 +216,13 @@
         if (progress[name].cep !== digits || error.code === "aborted") {
           return;
         }
-        announce(config.messages[error.code] || error.message);
+
+        var shown = config.messages[error.code] || error.message;
+        announce(shown);
+
+        if (error.code === "not_found") {
+          explain(name, digits, shown);
+        }
       },
     );
   }