from contextlib import asynccontextmanager

from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware

from .api.router import api_router
from .core.config import get_settings
from .core.database import SessionLocal, init_db
from .core.exception_handlers import global_exception_handler
from .services.scheduled_task_service import seed_default_scheduled_tasks

settings = get_settings()


@asynccontextmanager
async def lifespan(_: FastAPI):
    init_db()
    db = SessionLocal()
    try:
        seed_default_scheduled_tasks(db)
        db.commit()
    finally:
        db.close()
    yield


app = FastAPI(
    title=settings.api_name,
    version=settings.api_version,
    lifespan=lifespan,
)

app.add_middleware(
    CORSMiddleware,
    allow_origins=settings.cors_origins,
    allow_origin_regex=settings.cors_origin_regex,
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)


@app.get("/health")
def health() -> dict[str, str]:
    return {
        "status": "ok",
        "service": settings.api_name,
        "version": settings.api_version,
    }

app.add_exception_handler(Exception, global_exception_handler)

app.include_router(api_router)