Added base structure for expense tracker

Author: Mrinank-Bhowmick

.gitignore

@@ -152,9 +152,4 @@ dmypy.json
 # Cython debug symbols
 cython_debug/
 
-# PyCharm
-#  JetBrains specific template is maintained in a separate JetBrains.gitignore that can
-#  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
-#  and can be added to the global gitignore or merged into this file.  For a more nuclear
-#  option (not recommended) you can uncomment the following to ignore the entire idea folder.
-#.idea/
+*.db

projects/Expense-Tracker/main.py

@@ -0,0 +1,114 @@
+import sqlite3
+
+# Connect to the database
+conn = sqlite3.connect('expenses.db')
+cursor = conn.cursor()
+
+# Define SQL statements
+create_table_sql = """CREATE TABLE IF NOT EXISTS expenses (id INTEGER PRIMARY KEY AUTOINCREMENT, date TEXT, description TEXT, amount REAL)"""
+insert_expense_sql = "INSERT INTO expenses (date, description, amount) VALUES (?, ?, ?)"
+select_expenses_sql = "SELECT * FROM expenses ORDER BY date;"
+delete_expense_by_id_sql = "DELETE FROM expenses WHERE id=?"
+update_expense_by_id_sql = "UPDATE expenses SET description=? WHERE id=?"
+
+# Check if the database exists, create it if not
+if not conn.execute("SELECT name FROM sqlite_master WHERE type='table' AND name='expenses';").fetchone():
+    cursor.execute(create_table_sql)
+    conn.commit()
+
+def add_expense():
+    global cursor
+    
+    # Get input from user
+    print("Enter date (YYYY-MM-DD): ")
+    date = input().split()[0] + '-01'
+    print("Enter description: ")
+    description = input()
+    print("Enter amount: ")
+    amount = float(input())
+    
+    try:
+        cursor.execute(insert_expense_sql, (date, description, amount))
+        conn.commit()
+        print("Expense added successfully.")
+    except Exception as e:
+        print("Error adding expense: {}".format(e))
+        
+def delete_expense():
+    global cursor
+    
+    # Get ID from user
+    print("Enter ID to delete: ")
+    id = int(input())
+    
+    try:
+        cursor.execute(delete_expense_by_id_sql, (id,))
+        conn.commit()
+        print("Expense deleted successfully.")
+    except Exception as e:
+        print("Error deleting expense: {}".format(e))
+        
+def update_expense():
+    global cursor
+    
+    # Get ID and new description from user
+    print("Enter ID to update: ")
+    id = int(input())
+    print("Enter new description: ")
+    description = input()
+    
+    try:
+        cursor.execute(update_expense_by_id_sql, (description, id))
+        conn.commit()
+        print("Expense updated successfully.")
+    except Exception as e:
+        print("Error updating expense: {}".format(e))
+        
+
+def view_expenses():
+    # Fetch and display expenses
+    expenses = conn.execute(select_expenses_sql).fetchall()
+    if not expenses:
+        print("No expenses recorded yet.")
+    else:
+        print("Expenses:")
+        for expense in expenses:
+            print(f"ID: {expense[0]}, Date: {expense[1]}, Description: {expense[2]}, Amount: Rs: {expense[3]}")
+
+def total_expenses():
+    # Calculate and display total expenses
+    total = conn.execute("SELECT SUM(amount) FROM expenses;").fetchone()[0]
+    print(f"Total expenses: {total}$")
+
+def main_menu():
+    while True:
+        print("\nExpense Tracker Menu:")
+        print("1. Add Expense")
+        print("2. View Expenses")
+        print("3. Total Expenses")
+        print("4. Delete Expense")
+        print("5. Update Expense Description")
+        print("6. Quit")
+
+        choice = input("Enter your choice (1-6): ")
+
+        if choice == '1':
+            add_expense()
+        elif choice == '2':
+            view_expenses()
+        elif choice == '3':
+            total_expenses()
+        elif choice == '4':
+            delete_expense()
+        elif choice == '5':
+            update_expense()
+        elif choice == '6':
+            break
+        else:
+            print("Invalid choice. Please try again.")
+
+
+if __name__ == "__main__":
+    main_menu()
+
+conn.close()