import logging.config
from typing import Optional, Iterator

from mobilizon_reshare.config.command import CommandConfig
from mobilizon_reshare.event.event import MobilizonEvent
from mobilizon_reshare.event.event_selection_strategies import select_event_to_publish
from mobilizon_reshare.publishers import get_active_publishers
from mobilizon_reshare.publishers.abstract import EventPublication
from mobilizon_reshare.publishers.coordinator import (
    PublicationFailureNotifiersCoordinator,
    PublisherCoordinatorReport,
)
from mobilizon_reshare.publishers.coordinator import PublisherCoordinator
from mobilizon_reshare.storage.query.read import (
    get_published_events,
    build_publications,
    events_without_publications,
)
from mobilizon_reshare.storage.query.write import save_publication_report
from mobilizon_reshare.publishers.coordinator import DryRunPublisherCoordinator

logger = logging.getLogger(__name__)


async def publish_publications(
    publications: list[EventPublication],
) -> PublisherCoordinatorReport:
    report = PublisherCoordinator(publications).run()

    await save_publication_report(report)
    for publication_report in report.reports:
        if not publication_report.succesful:
            PublicationFailureNotifiersCoordinator(publication_report,).notify_failure()

    return report


def perform_dry_run(publications: list[EventPublication]):
    return DryRunPublisherCoordinator(publications).run()


async def publish_event(
    event: MobilizonEvent,
    command_config: CommandConfig,
    publishers: Optional[Iterator[str]] = None,
) -> PublisherCoordinatorReport:
    logger.info(f"Event to publish found: {event.name}")

    if not (publishers and all(publishers)):
        publishers = get_active_publishers()

    publications = await build_publications(event, publishers)
    if command_config.dry_run:
        logger.info("Executing in dry run mode. No event is going to be published.")
        return perform_dry_run(publications)
    else:
        return await publish_publications(publications)


async def select_and_publish(
    command_config: CommandConfig,
    unpublished_events: Optional[list[MobilizonEvent]] = None,
) -> Optional[PublisherCoordinatorReport]:
    """
    STUB
    :return:
    """
    if unpublished_events is None:
        unpublished_events = await events_without_publications()

    event = select_event_to_publish(
        list(await get_published_events()), unpublished_events,
    )

    if event:
        return await publish_event(event, command_config)
    else:
        logger.info("No event to publish found")