import asyncio

from apscheduler.schedulers.asyncio import AsyncIOScheduler
from django.core.management.base import BaseCommand

from core.clients.aggregators.nordigen import NordigenClient
from core.clients.platforms.agora import AgoraClient
from core.models import INTERVAL_CHOICES, Aggregator, Platform
from core.util import logs

log = logs.get_logger("scheduling")

INTERVAL_AGGREGATOR = 10

INTERVALS_PLATFORM = [x[0] for x in INTERVAL_CHOICES]


async def aggregator_job():
    aggregators = Aggregator.objects.filter(enabled=True)
    for aggregator in aggregators:
        if aggregator.service == "nordigen":
            instance = await NordigenClient(aggregator)
            if aggregator.fetch_accounts is True:
                await instance.get_all_account_info(store=True)

            fetch_tasks = []
            for bank, accounts in aggregator.account_info.items():
                for account in accounts:
                    account_id = account["account_id"]
                    requisition_id = account["requisition_id"]
                    task = instance.get_transactions(
                        account_id, req=requisition_id, process=True
                    )
                    fetch_tasks.append(task)
            await asyncio.gather(*fetch_tasks)
        else:
            raise NotImplementedError(f"No such client library: {aggregator.service}")
        aggregator.fetch_accounts = False
        aggregator.save()


async def platform_job(interval):
    if interval == 0:
        return
    platforms = Platform.objects.filter(enabled=True, cheat_interval_seconds=interval)
    for platform in platforms:
        if platform.service == "agora":
            if platform.cheat is True:
                instance = await AgoraClient(platform)
                await instance.cheat()
        else:
            raise NotImplementedError(f"No such client library: {platform.service}")


class Command(BaseCommand):
    def handle(self, *args, **options):
        """
        Start the scheduling process.
        """
        scheduler = AsyncIOScheduler()

        log.debug(f"Scheduling {INTERVAL_AGGREGATOR} second aggregator job")
        scheduler.add_job(aggregator_job, "interval", seconds=INTERVAL_AGGREGATOR)
        for interval in INTERVALS_PLATFORM:
            if interval == 0:
                continue
            log.debug(f"Scheduling {interval} second platform job")
            scheduler.add_job(
                platform_job, "interval", seconds=interval, args=[interval]
            )
        scheduler.start()
        loop = asyncio.get_event_loop()
        try:
            loop.run_forever()
        except (KeyboardInterrupt, SystemExit):
            log.info("Process terminating")
        finally:
            loop.close()