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

from app.api.api_v1.api import api_router
from app.core.config import settings
from app.core.error_handlers import add_exception_handlers

app = FastAPI(
    title=settings.PROJECT_NAME,
    openapi_url=f"{settings.API_V1_STR}/openapi.json",
    version="0.1.0",
    description="A simple task management API with FastAPI and SQLite.",
    docs_url="/docs",
    redoc_url="/redoc",
)

# Set all CORS enabled origins
if settings.BACKEND_CORS_ORIGINS:
    app.add_middleware(
        CORSMiddleware,
        allow_origins=[str(origin) for origin in settings.BACKEND_CORS_ORIGINS],
        allow_credentials=True,
        allow_methods=["*"],
        allow_headers=["*"],
    )

# Add exception handlers
add_exception_handlers(app)

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

# Root endpoint redirects to docs
@app.get("/", include_in_schema=False)
async def root():
    """Root endpoint redirects to docs."""
    from fastapi.responses import RedirectResponse
    return RedirectResponse(url="/docs")

if __name__ == "__main__":
    import uvicorn

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