from fastapi import FastAPI, HTTPException
from pydantic import BaseModel
import time
import os
from dotenv import load_dotenv

load_dotenv()

from src.helpers.logger import logger
from src.main import ImageMetadataDetector

app = FastAPI()

# Global detector instance
logger.info("Initializing ImageMetadataDetector...")
detector = ImageMetadataDetector()


# Request schema
class ImageRequest(BaseModel):
    path: str
    type: str  # "url" or "local_path"


# Health check
@app.get("/")
def root():
    return {"status": "running", "provider":"exif_detector"}


ENV = os.getenv("ENV", "development")

# Main processing endpoint
@app.post("/process")
def process_image(request: ImageRequest):
    start_time = time.time()
    logger.info(f"Processing image request: path='{request.path}', type='{request.type}'")

    try:
        result = detector.predict(request.path, request.type)
        processing_time = round(time.time() - start_time, 4)
        logger.info(f"Successfully processed image in {processing_time}s")
        return result

    except Exception as e:
        logger.error(f"Error processing image: {str(e)}", exc_info=True)
        # Hide detailed error message in production
        error_detail = "An internal error occurred while processing the image metadata" if ENV == "production" else str(e)
        raise HTTPException(status_code=400, detail=error_detail)


# uvicorn app:app --reload --host 0.0.0.0 --port 8000