adding macro details to tracker, changing charts to stacked bar chart of macros

tests/test_charts_api.py

@@ -0,0 +1,44 @@
+
+import pytest
+from datetime import date, timedelta
+from app.database import TrackedDay, TrackedMeal, TrackedMealFood, Meal, MealFood, Food
+
+class TestChartsData:
+    """Test charts data API"""
+    
+    def test_charts_api_returns_macros(self, client, sample_meal, db_session):
+        """Test that /api/charts returns protein, fat, and net_carbs"""
+        
+        # Create a tracked day with data
+        tracked_day = TrackedDay(person="Sarah", date=date.today(), is_modified=True)
+        db_session.add(tracked_day)
+        db_session.commit()
+        db_session.refresh(tracked_day)
+        
+        # Add meal
+        tracked_meal = TrackedMeal(
+            tracked_day_id=tracked_day.id,
+            meal_id=sample_meal.id,
+            meal_time="Breakfast"
+        )
+        db_session.add(tracked_meal)
+        db_session.commit()
+        
+        # Fetch chart data
+        response = client.get("/api/charts?person=Sarah&days=7")
+        assert response.status_code == 200
+        data = response.json()
+        assert len(data) > 0
+        
+        # Check fields
+        item = data[0]
+        assert "date" in item
+        assert "calories" in item
+        assert "protein" in item
+        assert "fat" in item
+        assert "net_carbs" in item
+        
+        # Check values (protein > 0 based on sample_meal)
+        assert item["protein"] >= 0
+        assert item["fat"] >= 0
+        assert item["net_carbs"] >= 0