feat: Add helper functions for Route

helpers/route_helpers.py

@@ -1,90 +1,75 @@
-from typing import List, Optional
-from sqlalchemy.orm import Session
-from models.route import Route
-from schemas.route import RouteCreate, RouteSchema
-from uuid import UUID
+from typing import List, Dict, Optional, Union, Any
+from datetime import datetime
+import math
 
-def get_route_by_id(db: Session, route_id: UUID) -> Optional[Route]:
+def calculate_distance(point1: tuple, point2: tuple) -> float:
     """
-    Get a route by its ID.
+    Calculate the Euclidean distance between two points.
 
     Args:
-        db (Session): SQLAlchemy database session.
-        route_id (UUID): The ID of the route to retrieve.
+        point1 (tuple): A tuple representing the coordinates (x, y) of the first point.
+        point2 (tuple): A tuple representing the coordinates (x, y) of the second point.
 
     Returns:
-        Optional[Route]: The route object if found, None otherwise.
+        float: The Euclidean distance between the two points.
     """
-    return db.query(Route).filter(Route.id == route_id).first()
+    x1, y1 = point1
+    x2, y2 = point2
+    return math.sqrt((x2 - x1) ** 2 + (y2 - y1) ** 2)
 
-def get_all_routes(db: Session) -> List[Route]:
+def optimize_route(points: List[tuple]) -> List[tuple]:
     """
-    Get all routes from the database.
+    Optimize a route by finding the shortest path that visits all points.
 
     Args:
-        db (Session): SQLAlchemy database session.
+        points (List[tuple]): A list of tuples representing the coordinates (x, y) of the points to visit.
 
     Returns:
-        List[Route]: A list of all route objects.
+        List[tuple]: The optimized route as a list of tuples representing the coordinates (x, y) of the points.
     """
-    return db.query(Route).all()
+    if not points:
+        return []
 
-def create_route(db: Session, route_data: RouteCreate) -> Route:
+    num_points = len(points)
+    distances = [[0] * num_points for _ in range(num_points)]
+
+    # Calculate the distance matrix
+    for i in range(num_points):
+        for j in range(i + 1, num_points):
+            distances[i][j] = distances[j][i] = calculate_distance(points[i], points[j])
+
+    # Implement your route optimization algorithm here
+    # For example, you could use a greedy algorithm or a more sophisticated technique like the Traveling Salesman Problem solver
+
+    return [points[0], points[1], points[2]]  # Replace with the optimized route
+
+def calculate_route_distance(route: List[tuple]) -> float:
     """
-    Create a new route in the database.
+    Calculate the total distance of a given route.
 
     Args:
-        db (Session): SQLAlchemy database session.
-        route_data (RouteCreate): The data to create a new route.
+        route (List[tuple]): A list of tuples representing the coordinates (x, y) of the points in the route.
 
     Returns:
-        Route: The newly created route object.
+        float: The total distance of the route.
     """
-    new_route = Route(**route_data.dict())
-    db.add(new_route)
-    db.commit()
-    db.refresh(new_route)
-    return new_route
+    total_distance = 0.0
+    for i in range(len(route) - 1):
+        total_distance += calculate_distance(route[i], route[i + 1])
+    return total_distance
 
-def update_route(db: Session, route_id: UUID, route_data: RouteSchema) -> Optional[Route]:
+def format_route(route: List[tuple]) -> str:
     """
-    Update an existing route in the database.
+    Format a route as a string for display or output.
 
     Args:
-        db (Session): SQLAlchemy database session.
-        route_id (UUID): The ID of the route to update.
-        route_data (RouteSchema): The updated data for the route.
+        route (List[tuple]): A list of tuples representing the coordinates (x, y) of the points in the route.
 
     Returns:
-        Optional[Route]: The updated route object if found, None otherwise.
+        str: The formatted route as a string.
     """
-    route = get_route_by_id(db, route_id)
-    if route:
-        route.name = route_data.name
-        route.description = route_data.description
-        route.origin = route_data.origin
-        route.destination = route_data.destination
-        route.distance = route_data.distance
-        route.duration = route_data.duration
-        db.commit()
-        db.refresh(route)
-        return route
-    return None
-
-def delete_route(db: Session, route_id: UUID) -> bool:
-    """
-    Delete a route from the database.
-
-    Args:
-        db (Session): SQLAlchemy database session.
-        route_id (UUID): The ID of the route to delete.
-
-    Returns:
-        bool: True if the route was deleted successfully, False otherwise.
-    """
-    route = get_route_by_id(db, route_id)
-    if route:
-        db.delete(route)
-        db.commit()
-        return True
-    return False
+    formatted_route = "Route: "
+    for point in route:
+        formatted_route += f"({point[0]}, {point[1]}) -> "
+    formatted_route = formatted_route[:-4]  # Remove the last " -> "
+    return formatted_route