import sqlite3

def generate_double_entry(text):
    # Very basic logic, should improve using rules/keywords
    if "furniture" in text:
        return ("Office Furniture", "Cash", 1000)
    elif "rent" in text:
        return ("Rent Expense", "Bank", 2000)
    else:
        return ("Uncategorized Debit", "Uncategorized Credit", 0)

def save_transaction(debit, credit, amount, description):
    conn = sqlite3.connect("db.sqlite")
    cursor = conn.cursor()
    cursor.execute("""
        CREATE TABLE IF NOT EXISTS transactions (
            id INTEGER PRIMARY KEY AUTOINCREMENT,
            debit TEXT, credit TEXT, amount REAL, description TEXT
        )
    """)
    cursor.execute("""
        INSERT INTO transactions (debit, credit, amount, description)
        VALUES (?, ?, ?, ?)
    """, (debit, credit, amount, description))
    conn.commit()
    conn.close()