import logging
import time

import click
from celery import shared_task
from sqlalchemy import exists, select

from core.db.session_factory import session_factory
from core.rag.datasource.vdb.vector_factory import Vector
from core.rag.index_processor.constant.index_type import IndexTechniqueType
from extensions.ext_redis import redis_client
from models.dataset import Dataset
from models.model import App, AppAnnotationSetting, MessageAnnotation

logger = logging.getLogger(__name__)


@shared_task(queue="dataset")
def disable_annotation_reply_task(job_id: str, app_id: str, tenant_id: str):
    """
    Async enable annotation reply task
    """
    logger.info(click.style(f"Start delete app annotations index: {app_id}", fg="green"))
    start_at = time.perf_counter()
    # get app info
    with session_factory.create_session() as session:
        app = session.scalar(
            select(App).where(App.id == app_id, App.tenant_id == tenant_id, App.status == "normal").limit(1)
        )
        annotations_exists = session.scalar(select(exists().where(MessageAnnotation.app_id == app_id)))
        if not app:
            logger.info(click.style(f"App not found: {app_id}", fg="red"))
            return

        app_annotation_setting = session.scalar(
            select(AppAnnotationSetting).where(AppAnnotationSetting.app_id == app_id).limit(1)
        )

        if not app_annotation_setting:
            logger.info(click.style(f"App annotation setting not found: {app_id}", fg="red"))
            return

        disable_app_annotation_key = f"disable_app_annotation_{str(app_id)}"
        disable_app_annotation_job_key = f"disable_app_annotation_job_{str(job_id)}"

        try:
            dataset = Dataset(
                id=app_id,
                tenant_id=tenant_id,
                indexing_technique=IndexTechniqueType.HIGH_QUALITY,
                collection_binding_id=app_annotation_setting.collection_binding_id,
            )

            try:
                if annotations_exists:
                    vector = Vector(dataset, attributes=["doc_id", "annotation_id", "app_id"])
                    vector.delete()
            except Exception:
                logger.exception("Delete annotation index failed when annotation deleted.")
            redis_client.setex(disable_app_annotation_job_key, 600, "completed")

            # delete annotation setting
            session.delete(app_annotation_setting)
            session.commit()

            end_at = time.perf_counter()
            logger.info(
                click.style(
                    f"App annotations index deleted : {app_id} latency: {end_at - start_at}",
                    fg="green",
                )
            )
        except Exception as e:
            logger.exception("Annotation batch deleted index failed")
            redis_client.setex(disable_app_annotation_job_key, 600, "error")
            disable_app_annotation_error_key = f"disable_app_annotation_error_{str(job_id)}"
            redis_client.setex(disable_app_annotation_error_key, 600, str(e))
        finally:
            redis_client.delete(disable_app_annotation_key)