import json
import re

def process_json_files(start, end):
    """
    Processes JSON files containing Tanach text and returns a dictionary
    mapping book IDs to their data.

    Args:
        start: The starting book ID (inclusive).
        end: The ending book ID (inclusive).

    Returns:
        A dictionary where keys are book IDs and values are dictionaries
        containing 'title' and 'text' fields.
    """
    base_path = "texts"
    results = {}  # Use a dictionary to store results

    for i in range(start, end + 1):
        file_name = f"{base_path}/{i:02}.json"
        try:
            with open(file_name, 'r', encoding='utf-8') as file:
                data = json.load(file)
                if data:
                    # Store book ID as key and book data as value
                    results[i] = {"title": data.get("title", "No title"), "text": data.get("text", [])}

        except FileNotFoundError:
            logging.warning(f"File {file_name} not found.")
        except json.JSONDecodeError as e:
            logging.warning(f"File {file_name} could not be read as JSON: {e}")
        except KeyError as e:
            logging.warning(f"Expected key 'text' is missing in {file_name}: {e}")

    return results