#
#  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 peewee
from werkzeug.security import generate_password_hash, check_password_hash

from api.db import UserTenantRole
from api.db.db_models import DB, UserTenant
from api.db.db_models import User, Tenant
from api.db.services.common_service import CommonService
from api.utils import get_uuid, get_format_time
from api.db import StatusEnum


class UserService(CommonService):
    model = User

    @classmethod
    @DB.connection_context()
    def filter_by_id(cls, user_id):
        try:
            user = cls.model.select().where(cls.model.id == user_id).get()
            return user
        except peewee.DoesNotExist:
            return None

    @classmethod
    @DB.connection_context()
    def query_user(cls, email, password):
        user = cls.model.select().where((cls.model.email == email),
                                        (cls.model.status == StatusEnum.VALID.value)).first()
        if user and check_password_hash(str(user.password), password):
            return user
        else:
            return None

    @classmethod
    @DB.connection_context()
    def save(cls, **kwargs):
        if "id" not in kwargs:
            kwargs["id"] = get_uuid()
        if "password" in kwargs:
            kwargs["password"] = generate_password_hash(str(kwargs["password"]))
        obj = cls.model(**kwargs).save(force_insert=True)
        return obj


    @classmethod
    @DB.connection_context()
    def delete_user(cls, user_ids, update_user_dict):
        with DB.atomic():
            cls.model.update({"status": 0}).where(cls.model.id.in_(user_ids)).execute()

    @classmethod
    @DB.connection_context()
    def update_user(cls, user_id, user_dict):
        date_time = get_format_time()
        with DB.atomic():
            if user_dict:
                user_dict["update_time"] = date_time
                cls.model.update(user_dict).where(cls.model.id == user_id).execute()


class TenantService(CommonService):
    model = Tenant

    @classmethod
    @DB.connection_context()
    def get_by_user_id(cls, user_id):
        fields = [cls.model.id.alias("tenant_id"), cls.model.name, cls.model.llm_id, cls.model.embd_id, cls.model.asr_id, cls.model.img2txt_id, cls.model.parser_ids, UserTenant.role]
        return list(cls.model.select(*fields)\
            .join(UserTenant, on=((cls.model.id == UserTenant.tenant_id) & (UserTenant.user_id==user_id) & (UserTenant.status == StatusEnum.VALID.value)))\
            .where(cls.model.status == StatusEnum.VALID.value).dicts())

    @classmethod
    @DB.connection_context()
    def get_joined_tenants_by_user_id(cls, user_id):
        fields = [cls.model.id.alias("tenant_id"), cls.model.name, cls.model.llm_id, cls.model.embd_id, cls.model.asr_id, cls.model.img2txt_id, UserTenant.role]
        return list(cls.model.select(*fields)\
            .join(UserTenant, on=((cls.model.id == UserTenant.tenant_id) & (UserTenant.user_id==user_id) & (UserTenant.status == StatusEnum.VALID.value) & (UserTenant.role==UserTenantRole.NORMAL.value)))\
            .where(cls.model.status == StatusEnum.VALID.value).dicts())


class UserTenantService(CommonService):
    model = UserTenant

    @classmethod
    @DB.connection_context()
    def save(cls, **kwargs):
        if "id" not in kwargs:
            kwargs["id"] = get_uuid()
        obj = cls.model(**kwargs).save(force_insert=True)
        return obj
