# Importing necessary modules
from flask import Flask, request, jsonify
from flask_sqlalchemy import SQLAlchemy
from werkzeug.security import generate_password_hash, check_password_hash
# Creating Flask app instance
app = Flask(__name__)
# Configuring the database
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///users.db'
db = SQLAlchemy(app)
# Defining the User model
class User(db.Model):
id = db.Column(db.Integer, primary_key=True)
username = db.Column(db.String(50), unique=True)
password_hash = db.Column(db.String(100))
def set_password(self, password):
self.password_hash = generate_password_hash(password)
def check_password(self, password):
return check_password_hash(self.password_hash, password)
# Creating a route for user authentication
@app.route('/login', methods=['POST'])
def login():
data = request.get_json()
username = data['username']
password = data['password']
user = User.query.filter_by(username=username).first()
if not user or not user.check_password(password):
return jsonify({'message': 'Invalid username or password'}), 401
token = generate_token(user)
return jsonify({'token': token}), 200
# Creating a Chart of Accounts
chart_of_accounts = {
'Assets': {
'Cash': 0,
'Accounts Receivable': 0,
'Inventory': 0
},
'Liabilities': {
'Accounts Payable': 0,
'Loans Payable': 0
},
'Equity': {
'Retained Earnings': 0,
'Share Capital': 0
},
'Revenue': {
'Sales': 0,
'Interest Income': 0
},
'Expenses': {
'Cost of Goods Sold': 0,
'Salaries and Wages': 0,
'Rent and Utilities': 0,
'Taxes': 0
}
}
# Creating a General Ledger
class GeneralLedger:
def __init__(self):
self.transactions = []
def add_transaction(self, account, amount):
self.transactions.append({
'account': account,
'amount': amount
})
def get_balance(self, account):
balance = 0
for t in self.transactions:
if t['account'] == account:
balance += t['amount']
return balance
# Creating an Accounts Payable class
class AccountsPayable:
def __init__(self):
self.payments = []
def add_payment(self, vendor, amount, due_date):
self.payments.append({
'vendor': vendor,
'amount': amount,
'due_date': due_date
})
def get_balance(self):
balance = 0
for p in self.payments:
balance += p['amount']
return balance
# Creating an Accounts Receivable class
class AccountsReceivable:
def __init__(self):
self.invoices = []
def add_invoice(self
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