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#
#  Copyright 2024 The InfiniFlow Authors. All Rights Reserved.
#
#  Licensed under the Apache License, Version 2.0 (the "License");
#  you may not use this file except in compliance with the License.
#  You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
#  Unless required by applicable law or agreed to in writing, software
#  distributed under the License is distributed on an "AS IS" BASIS,
#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#  See the License for the specific language governing permissions and
#  limitations under the License.
#

import logging
import os
import signal
import sys
import time
import traceback
from concurrent.futures import ThreadPoolExecutor

from werkzeug.serving import run_simple
from api.apps import app
from api.db.runtime_config import RuntimeConfig
from api.db.services.document_service import DocumentService
from api.settings import (
    HOST, HTTP_PORT
)
from api import utils
from api.utils.log_utils import logger

from api.db.db_models import init_database_tables as init_web_db
from api.db.init_data import init_web_data
from api.versions import get_versions


def update_progress():
    while True:
        time.sleep(3)
        try:
            DocumentService.update_progress()
        except Exception:
            logger.exception("update_progress exception")


if __name__ == '__main__':
    logger.info(r"""
        ____   ___    ______ ______ __               
       / __ \ /   |  / ____// ____// /____  _      __
      / /_/ // /| | / / __ / /_   / // __ \| | /| / /
     / _, _// ___ |/ /_/ // __/  / // /_/ /| |/ |/ / 
    /_/ |_|/_/  |_|\____//_/    /_/ \____/ |__/|__/                             

    """)
    logger.info(
        f'project base: {utils.file_utils.get_project_base_directory()}'
    )

    # init db
    init_web_db()
    init_web_data()
    # init runtime config
    import argparse

    parser = argparse.ArgumentParser()
    parser.add_argument(
        "--version", default=False, help="rag flow version", action="store_true"
    )
    parser.add_argument(
        "--debug", default=False, help="debug mode", action="store_true"
    )
    args = parser.parse_args()
    if args.version:
        print(get_versions())
        sys.exit(0)

    RuntimeConfig.DEBUG = args.debug
    if RuntimeConfig.DEBUG:
        logger.info("run on debug mode")

    RuntimeConfig.init_env()
    RuntimeConfig.init_config(JOB_SERVER_HOST=HOST, HTTP_PORT=HTTP_PORT)

    peewee_logger = logging.getLogger("peewee")
    peewee_logger.propagate = False
    # rag_arch.common.log.ROpenHandler
    peewee_logger.addHandler(logger.handlers[0])
    peewee_logger.setLevel(logger.handlers[0].level)

    thr = ThreadPoolExecutor(max_workers=1)
    thr.submit(update_progress)

    # start http server
    try:
        logger.info("RAG Flow http server start...")
        werkzeug_logger = logging.getLogger("werkzeug")
        for h in logger.handlers:
            werkzeug_logger.addHandler(h)
        run_simple(
            hostname=HOST,
            port=HTTP_PORT,
            application=app,
            threaded=True,
            use_reloader=RuntimeConfig.DEBUG,
            use_debugger=RuntimeConfig.DEBUG,
        )
    except Exception:
        traceback.print_exc()
        os.kill(os.getpid(), signal.SIGKILL)