from fastapi import APIRouter, UploadFile, File, HTTPException
from typing import Dict
from pathlib import Path
import shutil
import tempfile
from modules.pdf_utils import PDFUtils

router = APIRouter()

@router.post("/extract-text")
async def extract_text(
    pdf_file: UploadFile = File(...)
):
    """
    Extract text content from a PDF file
    """
    try:
        with tempfile.TemporaryDirectory() as temp_dir:
            temp_file = Path(temp_dir) / pdf_file.filename
            with temp_file.open("wb") as buffer:
                shutil.copyfileobj(pdf_file.file, buffer)
            
            text = PDFUtils.extract_text_from_pdf(temp_file)
            return {"text": text}
            
    except Exception as e:
        raise HTTPException(status_code=500, detail=str(e))

@router.post("/metadata")
async def get_metadata(
    pdf_file: UploadFile = File(...)
):
    """
    Get metadata from a PDF file
    """
    try:
        with tempfile.TemporaryDirectory() as temp_dir:
            temp_file = Path(temp_dir) / pdf_file.filename
            with temp_file.open("wb") as buffer:
                shutil.copyfileobj(pdf_file.file, buffer)
            
            metadata = PDFUtils.get_pdf_metadata(temp_file)
            return metadata
            
    except Exception as e:
        raise HTTPException(status_code=500, detail=str(e))