app.py

from fastapi.applications import FastAPI
from api.router import health, topic, user, bot, trial, role, reader
from fastapi.middleware.cors import CORSMiddleware
from api.events import register_events
from utils.utils import pipe

def create_instance() -> FastAPI:
    return FastAPI()

def add_middleware(app: FastAPI) -> FastAPI:
    app.add_middleware(
        CORSMiddleware,
        allow_origins=["*"],
        allow_credentials=True,
        allow_methods=["*"],
        allow_headers=["*"],
    )
    return app

def init_database(app: FastAPI) -> FastAPI:
    return app


def register_routers(app: FastAPI) -> FastAPI:
    app.include_router(user.router)
    app.include_router(topic.router)
    app.include_router(bot.router)
    app.include_router(trial.router)
    app.include_router(role.router)
    app.include_router(reader.router)
    app.include_router(health.router)

    return app


def init_app() -> FastAPI:
    app: FastAPI = pipe(
        create_instance(), add_middleware, init_database, register_events, register_routers
    )
    return app

app = init_app()