import uuid
from datetime import datetime

from flask_login import UserMixin
from werkzeug.security import check_password_hash, generate_password_hash

from app import db


class User(UserMixin, db.Model):
    __tablename__ = 'users'

    id = db.Column(db.String(36), primary_key=True,
                   default=lambda: str(uuid.uuid4()))
    username = db.Column(db.String(80), unique=True, nullable=False)
    email = db.Column(db.String(120), unique=True, nullable=False)
    password_hash = db.Column(db.String(255), nullable=True)
    google_id = db.Column(db.String(255), unique=True, nullable=True)
    is_admin = db.Column(db.Boolean, default=False)
    is_active = db.Column(db.Boolean, default=True)
    created_at = db.Column(db.DateTime, default=datetime.utcnow)
    updated_at = db.Column(
        db.DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)

    # Relationships
    projects = db.relationship(
        'Project', backref='owner', lazy=True, cascade='all, delete-orphan')

    def set_password(self, password):
        self.password_hash = generate_password_hash(password)

    def check_password(self, password):
        if not self.password_hash:
            return False
        return check_password_hash(self.password_hash, password)

    def to_dict(self):
        return {
            'id': self.id,
            'username': self.username,
            'email': self.email,
            'is_admin': self.is_admin,
            'is_active': self.is_active,
            'created_at': self.created_at.isoformat(),
            'updated_at': self.updated_at.isoformat()
        }

    def __repr__(self):
        return f'<User {self.username}>'