Add medicine management functionality with UI and data handling

- Implemented MedicineManagementWindow for adding, editing, and removing medicines.
- Created MedicineManager to handle medicine configurations, including loading and saving to JSON.
- Updated UIManager to dynamically generate medicine-related UI components based on the MedicineManager.
- Enhanced test suite with mock objects for MedicineManager to ensure proper functionality in DataManager tests.
- Added validation for medicine input fields in the UI.
- Introduced default medicine configurations for initial setup.

src/graph_manager.py

@@ -7,30 +7,43 @@ import pandas as pd
 from matplotlib.axes import Axes
 from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg
 
+from medicine_manager import MedicineManager
+
 
 class GraphManager:
     """Handle all graph-related operations for the application."""
 
-    def __init__(self, parent_frame: ttk.LabelFrame) -> None:
+    def __init__(
+        self, parent_frame: ttk.LabelFrame, medicine_manager: MedicineManager
+    ) -> None:
         self.parent_frame: ttk.LabelFrame = parent_frame
+        self.medicine_manager = medicine_manager
 
         # Configure graph frame to expand
         self.parent_frame.grid_rowconfigure(0, weight=1)
         self.parent_frame.grid_columnconfigure(0, weight=1)
 
-        # Initialize toggle variables for chart elements
+        self._initialize_toggle_vars()
+        self._setup_ui()
+
+    def _initialize_toggle_vars(self) -> None:
+        """Initialize toggle variables for chart elements."""
+        # Initialize symptom toggles (always shown by default)
         self.toggle_vars: dict[str, tk.BooleanVar] = {
             "depression": tk.BooleanVar(value=True),
             "anxiety": tk.BooleanVar(value=True),
             "sleep": tk.BooleanVar(value=True),
             "appetite": tk.BooleanVar(value=True),
-            "bupropion": tk.BooleanVar(value=False),
-            "hydroxyzine": tk.BooleanVar(value=False),
-            "gabapentin": tk.BooleanVar(value=False),
-            "propranolol": tk.BooleanVar(value=False),
-            "quetiapine": tk.BooleanVar(value=False),
         }
 
+        # Add medicine toggles dynamically
+        for medicine_key in self.medicine_manager.get_medicine_keys():
+            medicine = self.medicine_manager.get_medicine(medicine_key)
+            default_value = medicine.default_enabled if medicine else False
+            self.toggle_vars[medicine_key] = tk.BooleanVar(value=default_value)
+
+    def _setup_ui(self) -> None:
+        """Set up the UI components."""
         # Create control frame for toggles
         self.control_frame: ttk.Frame = ttk.Frame(self.parent_frame)
         self.control_frame.grid(row=0, column=0, sticky="ew", padx=5, pady=5)
@@ -84,26 +97,20 @@ class GraphManager:
             )
             checkbox.pack(side="left", padx=3)
 
-        # Medicines toggles
+        # Medicines toggles - dynamic based on medicine manager
         medicines_frame = ttk.LabelFrame(self.control_frame, text="Medicines")
         medicines_frame.pack(side="left", padx=5, pady=2)
 
-        medicine_configs = [
-            ("bupropion", "Bupropion"),
-            ("hydroxyzine", "Hydroxyzine"),
-            ("gabapentin", "Gabapentin"),
-            ("propranolol", "Propranolol"),
-            ("quetiapine", "Quetiapine"),
-        ]
-
-        for key, label in medicine_configs:
-            checkbox = ttk.Checkbutton(
-                medicines_frame,
-                text=label,
-                variable=self.toggle_vars[key],
-                command=self._handle_toggle_changed,
-            )
-            checkbox.pack(side="left", padx=3)
+        for medicine_key in self.medicine_manager.get_medicine_keys():
+            medicine = self.medicine_manager.get_medicine(medicine_key)
+            if medicine:
+                checkbox = ttk.Checkbutton(
+                    medicines_frame,
+                    text=medicine.display_name,
+                    variable=self.toggle_vars[medicine_key],
+                    command=self._handle_toggle_changed,
+                )
+                checkbox.pack(side="left", padx=3)
 
     def _handle_toggle_changed(self) -> None:
         """Handle toggle changes by replotting the graph."""
@@ -147,13 +154,8 @@ class GraphManager:
                 has_plotted_series = True
 
             # Plot medicine dose data
-            medicine_colors = {
-                "bupropion": "#FF6B6B",  # Red
-                "hydroxyzine": "#4ECDC4",  # Teal
-                "gabapentin": "#45B7D1",  # Blue
-                "propranolol": "#96CEB4",  # Green
-                "quetiapine": "#FFEAA7",  # Yellow
-            }
+            # Get medicine colors from medicine manager
+            medicine_colors = self.medicine_manager.get_graph_colors()
 
             medicines = [
                 "bupropion",