from fastapi import FastAPI
from sqlmodel import Field, Session, SQLModel, create_engine, select
from heroapi_uit import settings

from contextlib import asynccontextmanager


class Hero(SQLModel, table=True):
    id: int | None = Field(default=None, primary_key=True)
    name: str = Field(index=True)
    secret_name: str
    age: int | None = Field(default=None, index=True)


class HeroCreate(SQLModel):
    name: str
    secret_name: str
    age: int | None = None


class HeroRead(SQLModel):
    id: int
    name: str
    secret_name: str
    age: int | None = None



sqlite_file_name = "database.db"
sqlite_url = f"sqlite:///{sqlite_file_name}"

connect_args = {"check_same_thread": False}
engine = create_engine(sqlite_url, echo=True, connect_args=connect_args)


def create_db_and_tables():
    SQLModel.metadata.create_all(engine)





@asynccontextmanager
async def lifespan(app: FastAPI):
    create_db_and_tables()
    yield

app = FastAPI(lifespan=lifespan)


@app.post("/heroes/", response_model=HeroRead)
def create_hero(hero: HeroCreate):
    with Session(engine) as session:
        db_hero = Hero.model_validate(hero)
        session.add(db_hero)
        session.commit()
        session.refresh(db_hero)
        return db_hero


@app.get("/heroes/", response_model=list[HeroRead])
def read_heroes():
    with Session(engine) as session:
        heroes = session.exec(select(Hero)).all()
        return heroes

