Add loading indicator for search queries

tests/acceptance/search-loading-test.js

@@ -0,0 +1,97 @@
+import { module, test } from 'qunit';
+import { visit } from '@ember/test-helpers';
+import { setupApplicationTest } from 'marco/tests/helpers';
+import Service from '@ember/service';
+import { Promise } from 'rsvp';
+
+class MockPhotonService extends Service {
+  async search(query) {
+    // Simulate network delay
+    await new Promise((resolve) => setTimeout(resolve, 50));
+    if (query === 'slow') {
+      await new Promise((resolve) => setTimeout(resolve, 200));
+    }
+    return [
+      {
+        title: 'Test Place',
+        lat: 1,
+        lon: 1,
+        osmId: '123',
+        osmType: 'node',
+      },
+    ];
+  }
+}
+
+class MockOsmService extends Service {
+  async getCategoryPois(bounds, category) {
+    await new Promise((resolve) => setTimeout(resolve, 50));
+    if (category === 'slow_category') {
+      await new Promise((resolve) => setTimeout(resolve, 200));
+    }
+    return [];
+  }
+  async getNearbyPois() {
+    return [];
+  }
+}
+
+module('Acceptance | search loading', function (hooks) {
+  setupApplicationTest(hooks);
+
+  hooks.beforeEach(function () {
+    this.owner.register('service:photon', MockPhotonService);
+    this.owner.register('service:osm', MockOsmService);
+  });
+
+  test('search shows loading indicator but nearby search does not', async function (assert) {
+    const mapUi = this.owner.lookup('service:map-ui');
+
+    // 1. Text Search
+    // Start a search and check for loading state immediately
+    const searchPromise = visit('/search?q=slow');
+
+    // We can't easily check the DOM mid-transition in acceptance tests without complicated helpers,
+    // so we check the service state which drives the UI.
+    // Wait a tiny bit for the route to start processing
+    await new Promise((r) => setTimeout(r, 10));
+
+    assert.deepEqual(
+      mapUi.loadingState,
+      { type: 'text', value: 'slow' },
+      'Loading state is set for text search'
+    );
+
+    await searchPromise;
+    assert.strictEqual(
+      mapUi.loadingState,
+      null,
+      'Loading state is cleared after text search'
+    );
+
+    // 2. Category Search
+    const catPromise = visit('/search?category=slow_category&lat=1&lon=1');
+    await new Promise((r) => setTimeout(r, 10));
+
+    assert.deepEqual(
+      mapUi.loadingState,
+      { type: 'category', value: 'slow_category' },
+      'Loading state is set for category search'
+    );
+
+    await catPromise;
+    assert.strictEqual(
+      mapUi.loadingState,
+      null,
+      'Loading state is cleared after category search'
+    );
+
+    // 3. Nearby Search
+    await visit('/search?lat=1&lon=1');
+    assert.strictEqual(
+      mapUi.loadingState,
+      null,
+      'Loading state is NOT set for nearby search'
+    );
+  });
+});