import time
import random

import prefect
from prefect import Flow, task, Parameter

MAX_SIZE = 30


@task
def dynamic_list_of_tasks(window_size):
    size = random.randint(window_size, MAX_SIZE)
    size += size % window_size  # Ensure it is divisable for the fixed window
    return [i for i in range(size)]


@task
def fixed_window(tasks: list, window_size: int):
    windowed = []
    while tasks:
        windowed.append(tasks[:window_size])
        tasks = tasks[window_size:]
    return windowed


@task
def display(i):
    <http://prefect.context.logger.info|prefect.context.logger.info>(f"Processing {i}")


window_size = Parameter("window_size", default=2)

with Flow("windowed-tasks") as flow:
    tasks = dynamic_list_of_tasks(window_size)
    windowed_tasks = fixed_window(tasks, window_size)
    display.map(windowed_tasks)

flow.run()
# flow.register("default")