From 7adc94759386c19488154a82c0b10bf56933a81c Mon Sep 17 00:00:00 2001
From: Mika <kontakt@donau2space.de>
Date: Wed, 18 Mar 2026 13:17:47 +0000
Subject: [PATCH] Add heatmap_visualization/js/api.js

---
 heatmap_visualization/js/api.js | 55 +++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 heatmap_visualization/js/api.js

diff --git a/heatmap_visualization/js/api.js b/heatmap_visualization/js/api.js
new file mode 100644
index 0000000..348957b
--- /dev/null
+++ b/heatmap_visualization/js/api.js
@@ -0,0 +1,55 @@
+/**
+ * @module api
+ * Kommunikation mit der /heatmap API.
+ * Enthält Funktionen zum Laden von Heatmap-Daten.
+ */
+
+/**
+ * Sendet eine GET-Anfrage an die API-Ressource /heatmap.
+ * Verarbeitet die Antwort zu einem JSON-Objekt.
+ *
+ * @async
+ * @function loadHeatmapData
+ * @param {Object} [filters={}] - Optionales Objekt mit Filterparametern (cohort_id, time_window)
+ * @returns {Promise<Object>} Parsed Heatmap-Datenobjekt
+ */
+export async function loadHeatmapData(filters = {}) {
+  try {
+    const params = new URLSearchParams();
+    if (filters.cohort_id) params.append('cohort_id', filters.cohort_id);
+    if (filters.time_window) params.append('time_window', filters.time_window);
+
+    const url = `/heatmap${params.toString() ? '?' + params.toString() : ''}`;
+    const response = await fetch(url, {
+      method: 'GET',
+      headers: {
+        'Accept': 'application/json'
+      }
+    });
+
+    if (!response.ok) {
+      console.error(`API Error: ${response.status} ${response.statusText}`);
+      throw new Error('Fehler beim Laden der Heatmap-Daten.');
+    }
+
+    const data = await response.json();
+
+    if (!data || typeof data !== 'object') {
+      throw new Error('Ungueltiges Datenformat von der Heatmap-API.');
+    }
+
+    return data;
+  } catch (error) {
+    console.error('loadHeatmapData Error:', error);
+    return {
+      matrix: [],
+      metadata: {
+        band_center: null,
+        band_width: null,
+        cluster_score: null
+      },
+      error: true,
+      message: error.message
+    };
+  }
+}