import logging
import time

import click
from celery import shared_task  # type: ignore
from flask import render_template

from extensions.ext_mail import mail
from models.account import Account, Tenant, TenantAccountJoin
from models.dataset import Dataset, DatasetAutoDisableLog


@shared_task(queue="mail")
def send_document_clean_notify_task():
    """
    Async Send document clean notify mail

    Usage: send_document_clean_notify_task.delay()
    """
    if not mail.is_inited():
        return

    logging.info(click.style("Start send document clean notify mail", fg="green"))
    start_at = time.perf_counter()

    # send document clean notify mail
    try:
        dataset_auto_disable_logs = DatasetAutoDisableLog.query.filter(DatasetAutoDisableLog.notified == False).all()
        # group by tenant_id
        dataset_auto_disable_logs_map = {}
        for dataset_auto_disable_log in dataset_auto_disable_logs:
            dataset_auto_disable_logs_map[dataset_auto_disable_log.tenant_id].append(dataset_auto_disable_log)

        for tenant_id, tenant_dataset_auto_disable_logs in dataset_auto_disable_logs_map.items():
            knowledge_details = []
            tenant = Tenant.query.filter(Tenant.id == tenant_id).first()
            if not tenant:
                continue
            current_owner_join = TenantAccountJoin.query.filter_by(tenant_id=tenant.id, role="owner").first()
            account = Account.query.filter(Account.id == current_owner_join.account_id).first()
            if not account:
                continue

            dataset_auto_dataset_map = {}
            for dataset_auto_disable_log in tenant_dataset_auto_disable_logs:
                dataset_auto_dataset_map[dataset_auto_disable_log.dataset_id].append(
                    dataset_auto_disable_log.document_id
                )

            for dataset_id, document_ids in dataset_auto_dataset_map.items():
                dataset = Dataset.query.filter(Dataset.id == dataset_id).first()
                if dataset:
                    document_count = len(document_ids)
                    knowledge_details.append(f"<li>Knowledge base {dataset.name}: {document_count} documents</li>")

        html_content = render_template(
            "clean_document_job_mail_template-US.html",
        )
        mail.send(to=to, subject="立即加入 Dify 工作空间", html=html_content)

        end_at = time.perf_counter()
        logging.info(
            click.style("Send document clean notify mail succeeded: latency: {}".format(end_at - start_at), fg="green")
        )
    except Exception:
        logging.exception("Send invite member mail to {} failed".format(to))