Smooth out bugs in IAP, check for incomplete purchases at startup

www/js/shop.js

@@ -74,8 +74,8 @@ function buycoins(productId) {
                     });
                 })
                 .then(function () {
-                    loadstorefront();
-                    showShopMessage("Thanks for your purchase!", true);
+                    showShopMessage("Thanks for your purchase!", false);
+                    refreshcoins();
                 })
                 .catch(function (err) {
                     console.log("Error: " + err.message);
@@ -157,9 +157,6 @@ function setcoinhtmlfromiap(coinsjson) {
                             + "</div>";
                 });
                 $('#coin-list').html(coinsHtml);
-                /*
-                 [{ productId: 'com.yourapp.prod1', 'title': '...', description: '...', price: '...' }, ...]
-                 */
             })
             .catch(function (err) {
                 console.log(err.message);
@@ -188,3 +185,11 @@ function loadstorefront() {
     loadinventory(); // Make sure purchases stay in sync
     // Put it last in case it fails, so it doesn't crash stuff badly
 }
+
+function refreshcoins() {
+    $.getJSON(mkApiUrl('shopitems'), function (data) {
+        if (data.status == 'OK') {
+            $('#coinbalance').text(data.balance);
+        }
+    });
+}

www/screens/home.html

@@ -134,3 +134,32 @@
         openIntro();
     }
 </script>
+<script>
+    /*
+     * Try to restore any broken coin purchases
+     */
+    inAppPurchase
+            .restorePurchases()
+            .then(function (data) {
+                console.log(data);
+                data.forEach(function (prod) {
+                    if (prod.state == 2 || prod.state == 1) { // Refunded (2) or cancelled (1), let's consume it
+                        inAppPurchase.consume(prod.type, prod.receipt, prod.signature);
+                    } else { // Product is active
+                        $.getJSON(mkApiUrl('processiap', 'gs'), {
+                            os: 'android',
+                            data: prod.receipt,
+                            signature: prod.signature,
+                            id: prod.productId
+                        }, function (result) {
+                            if (result.status == 'OK') {
+                                inAppPurchase.consume(prod.type, prod.receipt, prod.signature);
+                            }
+                        });
+                    }
+                });
+            })
+            .catch(function (err) {
+                console.log(err);
+            });
+</script>