На всякий сейвлю свою "трассировку". Если это чудо наконец то заработает, я абалдею. Я из за него на улицу не выхожу :(

This commit is contained in:
maksim 2024-06-11 02:35:52 +04:00
parent 48eb02fca7
commit 8bb6a784bf

View File

@ -1,5 +1,5 @@
import json
from datetime import datetime, timedelta
from datetime import datetime, timedelta, date
import random
from typing import Dict, List, Tuple, Any
from fastapi import FastAPI, HTTPException, Request
@ -7,7 +7,9 @@ from fastapi import FastAPI, HTTPException, Request
from schemas import TripRequest
def load_graph_from_request(request: TripRequest) -> Tuple[Dict[str, Dict[str, List[Any]]], str, str, List[Dict]]:
def load_graph_from_request(request: TripRequest) -> tuple[
dict[str, dict[Any, Any]], dict[str, dict[Any, Any]], str, str, list[dict[str, datetime | str | int]], list[
dict[str, datetime | str | int]], date, date | None]:
graphTo = {}
flightsDataTo = []
graphBack = {}
@ -73,10 +75,11 @@ def load_graph_from_request(request: TripRequest) -> Tuple[Dict[str, Dict[str, L
# Добавление ребра в граф
graphBack[departure_point][destination_point] = [flight.distance, departure_time, destination_time]
print(graphTo)
return graphTo,graphBack, start_point, end_point, flightsDataTo, flightsDataBack, departure_date, departure_date_return
def path_length_and_time(path, graph):
def path_length_and_time(path, graph, departure_date):
length = 0
if path[0] not in graph or path[1] not in graph[path[0]]:
return float('inf'), None, None
@ -87,11 +90,21 @@ def path_length_and_time(path, graph):
for i in range(len(path) - 1):
if path[i] not in graph or path[i + 1] not in graph[path[i]]:
return float('inf'), start_time, end_time
if departure_date != start_time.date():
return float('inf'), start_time, end_time
if i > 0:
print("Start time:", start_time)
print("graph date:", graph[path[i]][path[i + 1]][1])
if start_time + timedelta(minutes=180) > graph[path[i]][path[i + 1]][1]:
print("Departure date and start time date do not match")
return float('inf'), start_time, end_time
length += graph[path[i]][path[i + 1]][0]
if i > 0: # Пропуск первой вершины
if end_time + timedelta(minutes=180) > graph[path[i]][path[i + 1]][1]:
return float('inf'), start_time, end_time # Неприемлемый путь
end_time = graph[path[i]][path[i + 1]][2]
start_time = end_time
return length, start_time, end_time
@ -119,10 +132,9 @@ def generate_population(size, start, end, graph, max_attempts=100):
attempts += 1
return population
def select_parents(population, graph):
sorted_population = sorted(population, key=lambda p: path_length_and_time(p, graph)[0])
valid_parents = [p for p in sorted_population if path_length_and_time(p, graph)[0] != float('inf')]
def select_parents(population, graph, departure_date):
sorted_population = sorted(population, key=lambda p: path_length_and_time(p, graph, departure_date)[0])
valid_parents = [p for p in sorted_population if path_length_and_time(p, graph, departure_date)[0] != float('inf')]
return valid_parents[:len(valid_parents) // 2]
@ -144,20 +156,19 @@ def mutate(child):
return child
def update_best_paths(best_paths, path, graph, max_best_paths=10):
length, _, _ = path_length_and_time(path, graph)
def update_best_paths(best_paths, path, max_best_paths=10):
if path not in best_paths:
best_paths[path] = length
best_paths[path] = None
if len(best_paths) > max_best_paths:
worst_path = max(best_paths, key=best_paths.get)
del best_paths[worst_path]
def genetic_algorithm(start, end, graph, flights_data, type, departure_date, population_size=2000, generations=100):
def genetic_algorithm(start, end, graph, flights_data, type, departure_date, population_size=5, generations=5):
population = generate_population(population_size, start, end, graph)
best_paths = {} # Словарь для хранения уникальных лучших маршрутов и их длин
for generation in range(generations):
parents = select_parents(population, graph)
parents = select_parents(population, graph, departure_date)
# Если не удалось выбрать родителей, завершить алгоритм
if not parents:
@ -172,7 +183,7 @@ def genetic_algorithm(start, end, graph, flights_data, type, departure_date, pop
child = mutate(child)
if child[-1] == end:
new_population.append(child)
update_best_paths(best_paths, tuple(child), graph)
update_best_paths(best_paths, tuple(child))
population = new_population
best_paths = sorted(best_paths.items(), key=lambda item: item[1])
@ -190,12 +201,6 @@ def genetic_algorithm(start, end, graph, flights_data, type, departure_date, pop
"destinationPoint": flight['destinationPoint']
})
break
length, start_time, end_time = path_length_and_time(path, graph)
# Проверка на корректность длины пути и времени
if length == float('inf') or start_time is None or end_time is None:
continue
if datetime(start_time.year, start_time.month, start_time.day).date() != departure_date:
continue
result.append({
type: path_data,
})