from typing import List, Optional from uuid import UUID from datetime import datetime from pydantic import BaseModel from sqlalchemy.orm import Session from models.ride import Ride from schemas.ride import RideCreate, RideSchema def get_all_rides(db: Session) -> List[Ride]: """ Get all rides from the database. Args: db (Session): SQLAlchemy database session. Returns: List[Ride]: List of Ride objects. """ return db.query(Ride).all() def get_ride_by_id(db: Session, ride_id: UUID) -> Optional[Ride]: """ Get a ride by its ID. Args: db (Session): SQLAlchemy database session. ride_id (UUID): ID of the ride to retrieve. Returns: Optional[Ride]: Ride object if found, None otherwise. """ return db.query(Ride).filter(Ride.id == ride_id).first() def create_ride(db: Session, ride: RideCreate) -> Ride: """ Create a new ride in the database. Args: db (Session): SQLAlchemy database session. ride (RideCreate): Pydantic model for creating a new ride. Returns: Ride: The newly created Ride object. """ db_ride = Ride(**ride.dict()) db.add(db_ride) db.commit() db.refresh(db_ride) return db_ride def dispatch_ride(db: Session, ride: Ride) -> Ride: """ Dispatch a ride by updating its status and assigning a driver. Args: db (Session): SQLAlchemy database session. ride (Ride): Ride object to be dispatched. Returns: Ride: The updated Ride object with a dispatched status. """ # Implement logic to assign a driver and update ride status ride.ride_status = "dispatched" ride.driver_id = get_available_driver(db) # Implement get_available_driver function db.commit() db.refresh(ride) return ride def calculate_ride_fare(ride: Ride) -> float: """ Calculate the fare for a given ride based on distance and duration. Args: ride (Ride): Ride object for which the fare needs to be calculated. Returns: float: The calculated fare amount. """ # Implement logic to calculate fare based on ride distance and duration base_fare = 5.0 distance_rate = 1.5 # per km duration_rate = 0.2 # per minute fare = base_fare + (ride.ride_distance * distance_rate) + (ride.ride_duration / 60 * duration_rate) return fare