Update utils/database_handler.py

utils/database_handler.py

@@ -4,24 +4,39 @@ import os
 # Path to Excel database
 CUSTOMERS_FILE = "database/customers.xlsx"
 
-# Ensure database exists
+# Ensure database folder and file exist
 if not os.path.exists("database"):
     os.makedirs("database")
 if not os.path.exists(CUSTOMERS_FILE):
+    # Create an empty Excel file with the required columns
     pd.DataFrame(columns=["Name", "Phone", "Email", "Password"]).to_excel(CUSTOMERS_FILE, index=False)
 
-# Check user credentials
+# Function to check user credentials
 def check_credentials(email, password):
+    # Read the Excel file into a DataFrame
     df = pd.read_excel(CUSTOMERS_FILE)
+    # Filter for a user with the given email and password
     user = df[(df["Email"] == email) & (df["Password"] == password)]
-    return not user.empty
+    return not user.empty  # Return True if a match is found, otherwise False
 
-# Save new user
+# Function to save a new user
 def save_user(name, phone, email, password):
+    print("Attempting to save user:", name, phone, email, password)  # Debugging
+
+    # Read the existing data
     df = pd.read_excel(CUSTOMERS_FILE)
+    print("Existing data:\n", df)  # Debugging
+
+    # Check if the email already exists
     if email in df["Email"].values:
-        return False  # User already exists
+        print("Error: Email already exists.")  # Debugging
+        return False  # Do not allow duplicate emails
+
+    # Add the new user to the DataFrame
     new_user = {"Name": name, "Phone": phone, "Email": email, "Password": password}
     df = pd.concat([df, pd.DataFrame([new_user])], ignore_index=True)
+
+    # Save the updated DataFrame to the Excel file
     df.to_excel(CUSTOMERS_FILE, index=False)
-    return True                                      
+    print("User saved successfully. Updated data:\n", df)  # Debugging
+    return True