from datetime import datetime
from app import db

class Transaction(db.Model):
    id = db.Column(db.String(50), primary_key=True)
    account_id = db.Column(db.String(50), db.ForeignKey('account.id'), nullable=False)
    type = db.Column(db.String(50), nullable=False)
    amount = db.Column(db.Float, nullable=False)
    status = db.Column(db.String(20), default='pending')
    created_at = db.Column(db.DateTime, default=datetime.utcnow)
    updated_at = db.Column(db.DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)

    def __repr__(self):
        return f'<Transaction {self.id}>'