WIP: When selecting an exercise on new workout view, render a graph of exercise progress for the active user

app.py

@@ -424,14 +424,45 @@ def get_most_recent_topset_for_exercise(person_id, workout_id):
     return render_template('partials/new_set_form.html', person_id=person_id, workout_id=workout_id, exercises=exercises, has_value=True, exercise_id=exercise_id, repetitions=repetitions, weight=weight)
 
 
-# # TODO: Remove me, just for testing
-# @ app.route("/sparkline", methods=['GET'])
-# def get_sparkline():
-#     width = request.args.get('width', 400, type=int)
-#     height = request.args.get('height', 200, type=int)
-#     number_of_points = request.args.get('number_of_points', 50, type=int)
-#     points = [random.randint(1, 100) for _ in range(number_of_points)]
-#     return render_template('partials/sparkline.html', width=width, height=height, points=points)
+def calculate_relative_positions(start_dates):
+    min_date = min(start_dates)
+    max_date = max(start_dates)
+    total_span = (max_date - min_date).days if max_date != min_date else 1
+    return [(date - min_date).days / total_span for date in start_dates]
+
+@ app.route("/person/<int:person_id>/exercise/<int:exercise_id>/sparkline", methods=['GET'])
+def get_exercise_progress_for_user(person_id, exercise_id):
+    width = request.args.get('width', 300, type=int)
+    height = request.args.get('height', 100, type=int)
+    (estimated_1rm, start_dates) = db.get_exercise_progress_for_user(person_id, exercise_id)
+
+    # Calculate vb_width
+    min_date = min(start_dates)
+    max_date = max(start_dates)
+    date_range = (max_date - min_date).days  # e.g., 30 days
+    vb_width = date_range  # This can be scaled if needed
+
+    # Calculate vb_height
+    min_value = min(estimated_1rm)
+    max_value = max(estimated_1rm)
+    value_range = max_value - min_value  # e.g., 100
+    vb_height = value_range  # This can be scaled if needed
+
+    # Scaling factors (optional, for design)
+    width_scaling_factor = 200 / vb_width  # e.g., if you want 200px width
+    height_scaling_factor = 75 / vb_height  # e.g., if you want 100px height
+
+    # Apply scaling
+    vb_width *= width_scaling_factor
+    vb_height *= height_scaling_factor
+
+    # Scale estimated_1rm between 0 and vb_height
+    estimated_1rm = [((value - min_value) / value_range) * vb_height for value in estimated_1rm]
+
+    relative_positions = calculate_relative_positions(start_dates)
+    data_points = list(zip(estimated_1rm, relative_positions))
+
+    return render_template('partials/sparkline.html', title="GHR", vb_width=vb_width, vb_height=vb_height, data_points=data_points)
 
 
 @app.teardown_appcontext