v2 download API and Admin UI fixes (#177)

* fix: small ui fixes

* feat: #171

* fix: improvements to library scanning on admin UI

* feat: v2 download API

* fix: add download context cleanup

* fix: lint

app.vue

@@ -4,10 +4,52 @@
     <NuxtPage />
   </NuxtLayout>
   <ModalStack />
+  <div
+    v-if="showExternalUrlWarning"
+    class="fixed flex flex-row gap-x-2 right-0 bottom-0 m-2 px-2 py-2 z-50 text-right bg-red-700/90 rounded-lg"
+  >
+    <div class="flex flex-col">
+      <span class="text-sm text-zinc-200 font-bold font-display">{{
+        $t("errors.externalUrl.title")
+      }}</span>
+      <span class="text-xs text-red-400">{{
+        $t("errors.externalUrl.subtitle")
+      }}</span>
+    </div>
+    <button class="text-red-200" @click="() => hideExternalURL()">
+      <XMarkIcon class="size-5" />
+    </button>
+  </div>
 </template>
 
 <script setup lang="ts">
+import { XMarkIcon } from "@heroicons/vue/24/outline";
+
 await updateUser();
+
+const user = useUser();
+const apiDetails = await $dropFetch("/api/v1");
+
+const showExternalUrlWarning = ref(false);
+function checkExternalUrl() {
+  if (!import.meta.client) return;
+  const realOrigin = window.location.origin.trim();
+  const chosenOrigin = apiDetails.external.trim();
+  const ignore = window.localStorage.getItem("ignoreExternalUrl");
+  if (ignore && ignore == "true") return;
+  showExternalUrlWarning.value = !(realOrigin == chosenOrigin);
+}
+
+function hideExternalURL() {
+  window.localStorage.setItem("ignoreExternalUrl", "true");
+  showExternalUrlWarning.value = false;
+}
+
+if (user.value?.admin) {
+  onMounted(() => {
+    checkExternalUrl();
+  });
+}
 </script>
 
 <style scoped>