#  Copyright 2026 zhaoxi826
#
#  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 os

import ray
from sqlalchemy.ext.asyncio import create_async_engine, AsyncSession
from sqlalchemy.orm import sessionmaker
from sqlmodel import SQLModel

from pretor.core.database.module.user import AuthDatabase
from pretor.core.database.module.provider import ProviderDatabase

@ray.remote
class PostgresDatabase:
    def __init__(self):
        user = os.environ.get('POSTGRES_USER')
        password = os.environ.get('POSTGRES_PASSWORD')
        host = os.environ.get('POSTGRES_HOST')
        port = os.environ.get('POSTGRES_PORT')
        database = os.environ.get('POSTGRES_DB')
        database_url = f"postgresql+asyncpg://{user}:{password}@{host}:{port}/{database}"
        self.async_engine = create_async_engine(database_url, echo=True)
        self.async_session_maker = sessionmaker(self.async_engine, class_=AsyncSession, expire_on_commit=False)

        self.auth_database = AuthDatabase(self.async_session_maker)
        self.provider_database = ProviderDatabase(self.async_session_maker)

    async def init_db(self) -> None:
        async with self.async_engine.begin() as conn:
            await conn.run_sync(SQLModel.metadata.create_all)