from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware
from fastapi.openapi.utils import get_openapi

from app.api.v1.api import api_router
from app.core.config import settings

app = FastAPI(
    title=settings.PROJECT_NAME,
    openapi_url="/openapi.json",
)

# Set up CORS middleware
app.add_middleware(
    CORSMiddleware,
    allow_origins=[origin for origin in settings.BACKEND_CORS_ORIGINS],
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)

# Include API router
app.include_router(api_router, prefix=settings.API_V1_STR)


@app.get("/")
async def root():
    """Root endpoint with API information."""
    return {
        "name": settings.PROJECT_NAME,
        "docs": "/docs",
        "health_check": "/health",
        "env_name": "/env/name",
    }


@app.get("/health", status_code=200)
async def health_check():
    """Health check endpoint."""
    return {"status": "healthy"}


@app.get("/env/name")
async def get_name_env():
    """Return the value of the NAME environment variable."""
    return {"name": settings.NAME}


def custom_openapi():
    if app.openapi_schema:
        return app.openapi_schema
    openapi_schema = get_openapi(
        title=settings.PROJECT_NAME,
        version="1.0.0",
        description="Generic REST API with FastAPI and SQLite",
        routes=app.routes,
    )
    app.openapi_schema = openapi_schema
    return app.openapi_schema


app.openapi = custom_openapi

if __name__ == "__main__":
    import uvicorn

    uvicorn.run("main:app", host="0.0.0.0", port=8000, reload=True)