From f1c1ff70e68bc3c19dcad97367d35876e2b49699 Mon Sep 17 00:00:00 2001
From: Rostyslav Zatserkovnyi <zatserkovnyi.rostyslav@gmail.com>
Date: Mon, 16 Sep 2024 19:12:26 +0300
Subject: [PATCH 1/2] Fix empty datasets locking UI

---
 src/api/EpiData.ts | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/src/api/EpiData.ts b/src/api/EpiData.ts
index 866063e..cb965f2 100644
--- a/src/api/EpiData.ts
+++ b/src/api/EpiData.ts
@@ -91,7 +91,9 @@ function loadEpidata(
       }
       points.push(new EpiPoint(date, row[col] as number));
     }
-    datasets.push(new DataSet(points, col, params));
+    if (points.length > 0) {
+      datasets.push(new DataSet(points, col, params));
+    }
   }
   return new DataGroup(name, datasets);
 }
@@ -135,7 +137,19 @@ export function loadDataSet(
   url.searchParams.set('format', 'json');
   return fetchImpl<Record<string, unknown>[]>(url)
     .then((res) => {
-      return loadEpidata(title, res, columns, { _endpoint: endpoint, ...params });
+      const data = loadEpidata(title, res, columns, { _endpoint: endpoint, ...params });
+      if (data.datasets.length == 0) {
+        console.warn('empty datasets');
+        return UIkit.modal
+          .alert(
+            `
+        <div class="uk-alert uk-alert-error">
+          <a href="${url.href}">API Link</a> returned no data.
+        </div>`,
+          )
+          .then(() => null);
+      }
+      return data;
     })
     .catch((error) => {
       console.warn('failed fetching data', error);

From fa3f51fc5fcc7a8de14c0b735ac3ddadb529e2c7 Mon Sep 17 00:00:00 2001
From: Rostyslav Zatserkovnyi <zatserkovnyi.rostyslav@gmail.com>
Date: Mon, 16 Sep 2024 19:14:33 +0300
Subject: [PATCH 2/2] warning not needed

---
 src/api/EpiData.ts | 1 -
 1 file changed, 1 deletion(-)

diff --git a/src/api/EpiData.ts b/src/api/EpiData.ts
index cb965f2..b059736 100644
--- a/src/api/EpiData.ts
+++ b/src/api/EpiData.ts
@@ -139,7 +139,6 @@ export function loadDataSet(
     .then((res) => {
       const data = loadEpidata(title, res, columns, { _endpoint: endpoint, ...params });
       if (data.datasets.length == 0) {
-        console.warn('empty datasets');
         return UIkit.modal
           .alert(
             `