#
#  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.
#
from datetime import datetime
import peewee
from api.db.db_models import DB, API4Conversation, APIToken, Dialog
from api.db.services.common_service import CommonService
from api.utils import current_timestamp, datetime_format


class APITokenService(CommonService):
    model = APIToken

    @classmethod
    @DB.connection_context()
    def used(cls, token):
        return cls.model.update({
            "update_time": current_timestamp(),
            "update_date": datetime_format(datetime.now()),
        }).where(
            cls.model.token == token
        )


class API4ConversationService(CommonService):
    model = API4Conversation

    @classmethod
    @DB.connection_context()
    def append_message(cls, id, conversation):
        cls.update_by_id(id, conversation)
        return cls.model.update(round=cls.model.round + 1).where(cls.model.id==id).execute()

    @classmethod
    @DB.connection_context()
    def stats(cls, tenant_id, from_date, to_date, source=None):
        return cls.model.select(
            cls.model.create_date.truncate("day").alias("dt"),
            peewee.fn.COUNT(
                cls.model.id).alias("pv"),
            peewee.fn.COUNT(
                cls.model.user_id.distinct()).alias("uv"),
            peewee.fn.SUM(
                cls.model.tokens).alias("tokens"),
            peewee.fn.SUM(
                cls.model.duration).alias("duration"),
            peewee.fn.AVG(
                cls.model.round).alias("round"),
            peewee.fn.SUM(
                cls.model.thumb_up).alias("thumb_up")
        ).join(Dialog, on=(cls.model.dialog_id == Dialog.id & Dialog.tenant_id == tenant_id)).where(
            cls.model.create_date >= from_date,
            cls.model.create_date <= to_date,
            cls.model.source == source
        ).group_by(cls.model.create_date.truncate("day")).dicts()