from sqlalchemy import create_engine
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker
from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware
from passlib.context import CryptContext
from sqlmodel import SQLModel, Field, Session
from dotenv import load_dotenv
import os

load_dotenv()


# Veritabanı URL'sini oluştur
DATABASE_URL = (
    f"postgresql://{os.getenv('USERNAME_DB')}:"
    f"{os.getenv('PASSWORD_DB')}@"
    f"{os.getenv('HOST_DB')}:"
    f"{os.getenv('PORT_DB')}/"
    f"{os.getenv('NAME_DB')}"
)

engine = create_engine(DATABASE_URL, echo=False)
def init_db():
    SQLModel.metadata.create_all(engine)

def get_session_db():
    with Session(engine) as session:
        yield session



### SECRET KEY ###
SECRET_KEY = os.getenv("SECRET_KEY")
ALGORITHM = os.getenv("ALGORITHM")
ACCESS_TOKEN_EXPIRE_MINUTES = int(os.getenv("ACCESS_TOKEN_EXPIRE_MINUTES"))


pwd_context = CryptContext(schemes=[f"{os.getenv('CRYPTO_TYPE')}"], deprecated="auto")

origins = [
    "http://localhost",
    "http://localhost:8080",
    "http://localhost:3000",
    "http://localhost:8000",
]

app = FastAPI()
@app.on_event("startup")
def on_startup():
    init_db()

app.add_middleware(
    CORSMiddleware,
    allow_origins=origins,
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)