utils/callbackmanager.py

import json
import os
import tempfile
from datetime import datetime
import traceback
import logging
from huggingface_hub import InferenceClient  # Import InferenceClient
from urllib.parse import urlparse, parse_qs  # Import URL parsing utilities

# ... (CallbackManager, display_form, generate_pdf_from_form, generate_pdf_from_meldrx, generate_discharge_paper_one_click, client initialization remain the same) ...
class CallbackManager:
    def __init__(self, redirect_uri: str, client_secret: str = None):
        client_id = os.getenv("APPID")
        if not client_id:
            raise ValueError("APPID environment variable not set.")
        workspace_id = os.getenv("WORKSPACE_URL")
        if not workspace_id:
            raise ValueError("WORKSPACE_URL environment variable not set.")
        self.api = MeldRxAPI(client_id, client_secret, workspace_id, redirect_uri)
        self.auth_code = None
        self.access_token = None

    def get_auth_url(self) -> str:
        return self.api.get_authorization_url()

    def set_auth_code(self, code: str) -> str:
        self.auth_code = code
        if self.api.authenticate_with_code(code):
            self.access_token = self.api.access_token
            return (
                f"<span style='color:#00FF7F;'>Authentication successful!</span> Access Token: {self.access_token[:10]}... (truncated)" # Neon Green Success
            )
        return "<span style='color:#FF4500;'>Authentication failed. Please check the code.</span>" # Neon Orange Error

    def get_patient_data(self) -> str:
        """Fetch patient data from MeldRx"""
        try:
            if not self.access_token:
                logger.warning("Not authenticated when getting patient data")
                return "<span style='color:#FF8C00;'>Not authenticated. Please provide a valid authorization code first.</span>" # Neon Dark Orange

            # For demo purposes, if there's no actual API connected, return mock data
            # Remove this in production and use the real API call
            if not hasattr(self.api, "get_patients") or self.api.get_patients is None:
                logger.info("Using mock patient data (no API connection)")
                # Return mock FHIR bundle with patient data
                mock_data = {
                    "resourceType": "Bundle",
                    "type": "searchset",
                    "total": 2,
                    "link": [],
                    "entry": [
                        {
                            "resource": {
                                "resourceType": "Patient",
                                "id": "patient1",
                                "name": [
                                    {
                                        "use": "official",
                                        "family": "Smith",
                                        "given": ["John"],
                                    }
                                ],
                                "gender": "male",
                                "birthDate": "1970-01-01",
                                "address": [
                                    {"city": "Boston", "state": "MA", "postalCode": "02108"}
                                ],
                            }
                        },
                        {
                            "resource": {
                                "resourceType": "Patient",
                                "id": "patient2",
                                "name": [
                                    {
                                        "use": "official",
                                        "family": "Johnson",
                                        "given": ["Jane"],
                                    }
                                ],
                                "gender": "female",
                                "birthDate": "1985-05-15",
                                "address": [
                                    {
                                        "city": "Cambridge",
                                        "state": "MA",
                                        "postalCode": "02139",
                                    }
                                ],
                            }
                        },
                    ],
                }
                return json.dumps(mock_data, indent=2)

            # Real implementation with API call
            logger.info("Calling Meldrx API to get patients")
            patients = self.api.get_patients()
            if patients is not None:
                return (
                    json.dumps(patients, indent=2)
                    if patients
                    else "<span style='color:#FFFF00;'>No patient data returned.</span>" # Neon Yellow
                )
            return "<span style='color:#DC143C;'>Failed to retrieve patient data.</span>" # Crimson Error
        except Exception as e:
            error_msg = f"Error in get_patient_data: {str(e)}"
            logger.error(error_msg)
            return f"<span style='color:#FF6347;'>Error retrieving patient data: {str(e)}</span> {str(e)}" # Tomato Error


    def get_patient_documents(self, patient_id: str = None):
        """Fetch patient documents from MeldRx"""
        if not self.access_token:
            return "<span style='color:#FF8C00;'>Not authenticated. Please provide a valid authorization code first.</span>" # Neon Dark Orange

        try:
            # This would call the actual MeldRx API to get documents for a specific patient
            # For demonstration, we'll return mock document data
            return [
                {
                    "doc_id": "doc123",
                    "type": "clinical_note",
                    "date": "2023-01-16",
                    "author": "Dr. Sample Doctor",
                    "content": "Patient presented with symptoms of respiratory distress...",
                },
                {
                    "doc_id": "doc124",
                    "type": "lab_result",
                    "date": "2023-01-17",
                    "author": "Lab System",
                    "content": "CBC results: WBC 7.5, RBC 4.2, Hgb 14.1...",
                },
            ]
        except Exception as e:
            return f"<span style='color:#FF6347;'>Error retrieving patient documents: {str(e)}</span>: {str(e)}" # Tomato Error



def extract_auth_code_from_url(redirected_url):
    """Extracts the authorization code from the redirected URL."""
    try:
        parsed_url = urlparse(redirected_url)
        query_params = parse_qs(parsed_url.query)
        if "code" in query_params:
            return query_params["code"][0], None  # Return code and no error
        else:
            return None, "Authorization code not found in URL."  # Return None and error message
    except Exception as e:
        return None, f"Error parsing URL: {e}"  # Return None and error message