"""Module for questions data processing"""

import os
import json
import requests

QUESTIONS_DATA_FILE = "data/questions_data.json"


def _get_task_files(files_url: str, questions_data: dict):
    for item in questions_data:
        task_id = item.get("task_id")
        file_name = item.get("file_name")
        local_file = "/".join(["data", file_name])
        if task_id and file_name:
            file_url = "/".join([files_url, task_id])
            response = requests.get(file_url, stream=True, timeout=120)
            response.raise_for_status()
            with open(local_file, "wb") as f:
                f.write(response.content)
                print(f"File '{file_name}' downloaded successfully.")


def _is_exists_questions_data_file() -> bool:
    if os.path.exists(QUESTIONS_DATA_FILE):
        print(f"The file '{QUESTIONS_DATA_FILE}' exists.")
        return True
    print(f"The file '{QUESTIONS_DATA_FILE}' does not exist.")
    return False


def _write_question_data_to_file(questions_data: dict):
    with open(QUESTIONS_DATA_FILE, "w", encoding="utf-8") as json_file:
        json.dump(
            questions_data, json_file, indent=4
        )  # The 'indent=4' parameter pretty-prints the JSON with 4 spaces for indentation.
    print(f"Pretty-printed JSON data written to {QUESTIONS_DATA_FILE}")


def _read_question_data_from_file() -> dict:
    with open(QUESTIONS_DATA_FILE, "r", encoding="utf-8") as json_file:
        questions_data = json.load(json_file)
        return questions_data


def _request_question_data_res(questions_url: str) -> requests.Response:
    try:
        res = requests.get(questions_url, timeout=60)
        res.raise_for_status()
        return res
    except requests.exceptions.HTTPError as e:
        print("HTTP error occurred:", e)
    except requests.exceptions.RequestException as e:
        print("A request error occurred:", e)
    return None


def _json_question_data_from_res(res: requests.Response) -> dict:
    try:
        questions_data = res.json()
        return questions_data
    except requests.exceptions.JSONDecodeError as e:
        questions_data = None
        print(f"Error decoding JSON response from questions endpoint: {e}")
        print(f"Response text: {res.text[:500]}")
    return None


def get_questions_data(questions_url: str, files_url: str) -> dict:
    """Get Questions Data"""
    if _is_exists_questions_data_file():
        questions_data = _read_question_data_from_file()
        return questions_data
    res = _request_question_data_res(questions_url=questions_url)
    if res:
        questions_data = _json_question_data_from_res(res)
        if questions_data:
            _write_question_data_to_file(questions_data=questions_data)
            _get_task_files(files_url=files_url, questions_data=questions_data)
            return questions_data
    return None