import json
import os
import requests
import time


stage = os.getenv("STAGE", 'local')
if stage == 'development':
    QUEUES_URL = 'https://queues.develop.sprinthub.ru'
elif stage == 'production':
    QUEUES_URL = 'https://queues.sprinthub.ru'
else:
    QUEUES_URL = None

token = os.getenv('QUEUES_TOKEN')


class QueuesException(Exception):
    ...


class TasksHandlerMixin:
    def poll(self):
        while True:
            if QUEUES_URL is None:
                data = {'payload': json.loads(input('Input message: '))}
            else:
                response = requests.get(f'{QUEUES_URL}/api/v1/take', headers={'queue': self.queue_name, 'X-Queues-Token': token})
                if response.status_code == 404:
                    time.sleep(0.2)
                    continue
                if response.status_code == 403:
                    raise NotImplemented('QUEUE_TOKEN is incorrect')
                data = response.json()
            try:
                self.process(data['payload'])
            except:
                print(f'Error processing message id={data["id"]}, payload={data["payload"]}')
                continue
            if QUEUES_URL is None:
                continue
            try:
                resp = requests.post(f'{QUEUES_URL}/api/v1/finish', json={'id': data['id']}, headers={'X-Queues-Token': token})
                if resp.status_code != 202:
                    raise QueuesException
            except:
                print(f'Failed to finish task id={data["id"]}')

    @property
    def queue_name(self):
        raise NotImplemented

    def process(self, payload):
        raise NotImplemented


def set_task(queue_name: str, payload: dict, seconds_to_execute: int, delay: int|None = None):
    resp = requests.post(f'{QUEUES_URL}/api/v1/put', headers={'queue': queue_name, 'X-Queues-Token': token}, json={
        'payload': payload,
        'seconds_to_execute': seconds_to_execute,
        'delay': delay,
    })
    if resp.status_code != 202:
        raise QueuesException