from fastapi import FastAPI, HTTPException
from fastapi.middleware.cors import CORSMiddleware
from pydantic import BaseModel
from duckai import DuckAI
from g4f.client import Client

app = FastAPI()

# Configure CORS
app.add_middleware(
    CORSMiddleware,
    allow_origins=["*"],
    allow_credentials=True,
    allow_methods=["GET", "POST", "PUT", "DELETE", "OPTIONS"],
    allow_headers=["*"],
)

class ChatQuery(BaseModel):
    query: str

@app.get("/chat/")
async def chat(query: str):
    if not query:
        raise HTTPException(status_code=400, detail="Query parameter is required")

    client = Client()
    duck = DuckAI()  # Initialize DuckAI here
    
    try:
        results = client.chat.completions.create(
            model="gpt-4o-mini",
            messages=[{"role": "user", "content": query}],
            web_search=False
        )
        return {"results": results}
    except Exception as e1:
        print(f"Primary model (gpt-4o-mini) failed: {e1}")
        try:
            results = duck.chat(query, model='claude-3-haiku')
            return {"results": results}
        except Exception as e2:
            print(f"Fallback model (claude-3-haiku) also failed: {e2}")
            raise HTTPException(
                status_code=500,
                detail={
                    "error": "Both models failed",
                    "primary_error": str(e1),
                    "fallback_error": str(e2)
                }
            )

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

if __name__ == "__main__":
    import uvicorn
    uvicorn.run(app, host="0.0.0.0", port=7860, log_level="info", reload=True)