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

db = SQLAlchemy()

levels_users = {'Inactive':0, 'Simple user':1, 'Admin users':5, 'Admin':10}

#######################################################################
#                             User class                              #
#######################################################################

class User(UserMixin, db.Model):
    """Model for user accounts."""

    __tablename__ = 'users'

    login = db.Column(db.String(100),
                   primary_key=True)
    name = db.Column(db.String(100),
                     nullable=False,
                     unique=False)
    password = db.Column(db.String(100),
                         primary_key=False,
                         unique=False,
                         nullable=False)
    is_admin = db.Column(db.Integer, default=1)

    def set_password(self, password):
        """Create hashed password."""
        self.password = generate_password_hash(password, method='sha256')

    def check_password(self, password):
        """Check hashed password."""
        return check_password_hash(self.password, password)

    def get_id(self):
        return self.login

    def __repr__(self):
        return '<User {}>'.format(self.login)

#######################################################################
#                             File class                              #
#######################################################################

class File(db.Model):
    __tablename__ = 'files'

    id = db.Column(db.Integer, 
            primary_key=True)
    name = db.Column(db.String(200))
    desc = db.Column(db.String(200))
    user = db.Column(db.String(100), db.ForeignKey('users.login'))
    password = db.Column(db.String(100), default='')
    visible = db.Column(db.Boolean, default=False)
    date = db.Column(db.DateTime)

    def set_password(self, password):
        """Create hashed password."""
        if password is None or password == '':
            self.password = ''
        else:
            self.password = generate_password_hash(password, method='sha256')

    def check_password(self, password):
        """Check hashed password."""
        if self.password == '':
            return True
        return check_password_hash(self.password, password)