Separated weight tracking

services/weight.ts

@@ -0,0 +1,53 @@
+import { BodyWeightRecord } from '../types';
+
+const API_URL = '/api';
+
+export const getWeightHistory = async (): Promise<BodyWeightRecord[]> => {
+    const token = localStorage.getItem('token');
+    if (!token) return [];
+
+    try {
+        const response = await fetch(`${API_URL}/weight`, {
+            headers: {
+                'Authorization': `Bearer ${token}`
+            }
+        });
+
+        if (!response.ok) {
+            throw new Error('Failed to fetch weight history');
+        }
+
+        return await response.json();
+    } catch (error) {
+        console.error('Error fetching weight history:', error);
+        return [];
+    }
+};
+
+export const logWeight = async (weight: number, dateStr?: string): Promise<BodyWeightRecord | null> => {
+    const token = localStorage.getItem('token');
+    if (!token) return null;
+
+    try {
+        // Default to today if no date provided
+        const date = dateStr || new Date().toISOString().split('T')[0];
+
+        const response = await fetch(`${API_URL}/weight`, {
+            method: 'POST',
+            headers: {
+                'Content-Type': 'application/json',
+                'Authorization': `Bearer ${token}`
+            },
+            body: JSON.stringify({ weight, dateStr: date })
+        });
+
+        if (!response.ok) {
+            throw new Error('Failed to log weight');
+        }
+
+        return await response.json();
+    } catch (error) {
+        console.error('Error logging weight:', error);
+        return null;
+    }
+};