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import os
import sys

import uvicorn
from dotenv import load_dotenv
from fastapi import FastAPI, Request
from fastapi.middleware.cors import CORSMiddleware
from fastapi.responses import JSONResponse

load_dotenv()
sys.path.insert(
    0, os.path.abspath("../../..")
)  # Adds the parent directory to the system path

from litellm.proxy.proxy_server import app as litellm_app
from litellm.proxy.proxy_server import proxy_startup_event

# Create main FastAPI app
app = FastAPI(title="Custom LiteLLM Server", lifespan=proxy_startup_event)

# Add CORS middleware
app.add_middleware(
    CORSMiddleware,
    allow_origins=["*"],
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)

custom_path = "/my-custom-path"

# Mount LiteLLM app at /litellm
app.mount(custom_path, litellm_app)


# Default route at /
@app.get("/")
async def root():
    return {
        "message": "Welcome to the API Gateway",
        "litellm_endpoint": f"{custom_path}",
    }


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


if __name__ == "__main__":
    # Run the server on port 8000
    uvicorn.run(app, host="0.0.0.0", port=4000, log_level="info")