from app.extensions import db
from datetime import datetime


class Account(db.Model):
    __tablename__ = 'accounts'

    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String(100), nullable=False)
    account_type = db.Column(
        db.Enum('checking', 'savings', 'cash', 'credit_card', 'crypto', 'investment', 'other'),
        nullable=False,
        default='checking'
    )
    balance = db.Column(db.Numeric(15, 2), default=0.00, nullable=False)
    credit_limit = db.Column(db.Numeric(15, 2), nullable=True)   # credit cards
    due_date = db.Column(db.Integer, nullable=True)               # day of month bill due
    color = db.Column(db.String(7), default='#4F81C7')            # hex color for UI
    icon = db.Column(db.String(50), default='bi-bank')            # bootstrap icon name
    is_active = db.Column(db.Boolean, default=True)
    notes = db.Column(db.Text, nullable=True)
    created_at = db.Column(db.DateTime, default=datetime.utcnow)
    updated_at = db.Column(db.DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)

    # Relationships
    transactions = db.relationship('Transaction', back_populates='account',
                                   lazy='dynamic', foreign_keys='Transaction.account_id')
    transfer_transactions = db.relationship('Transaction', back_populates='to_account',
                                            lazy='dynamic', foreign_keys='Transaction.to_account_id')

    def __repr__(self):
        return f'<Account {self.name}>'