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

db = SQLAlchemy()


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

    id = db.Column(db.Integer, primary_key=True)
    username = db.Column(db.String(64), unique=True, nullable=False, index=True)
    email = db.Column(db.String(120), unique=True, nullable=False, index=True)
    password_hash = db.Column(db.String(255), nullable=False)

    trips = db.relationship(
        "Trip", backref="user", lazy=True, cascade="all, delete-orphan"
    )

    def set_password(self, password: str) -> None:
        self.password_hash = generate_password_hash(password)

    def check_password(self, password: str) -> bool:
        return check_password_hash(self.password_hash, password)


VERKEHRSMITTEL_OPTIONEN = [
    "Bus",
    "Straßenbahn",
    "U-Bahn",
    "S-Bahn",
    "Regionalzug",
    "Fernzug (ÖBB/Railjet/WESTbahn)",
    "Sonstiges",
]


class Trip(db.Model):
    __tablename__ = "trips"

    id = db.Column(db.Integer, primary_key=True)
    user_id = db.Column(db.Integer, db.ForeignKey("users.id"), nullable=False, index=True)

    transport_mode = db.Column(db.String(50), nullable=False)
    line = db.Column(db.String(50))
    origin = db.Column(db.String(120), nullable=False)
    destination = db.Column(db.String(120), nullable=False)
    trip_date = db.Column(db.Date, nullable=False, default=date.today)
    rating = db.Column(db.Integer, nullable=False)  # 1-5
    comment = db.Column(db.Text)

    created_at = db.Column(db.DateTime, server_default=db.func.now())