"""
Simple Python script to check URLs
"""

import time
import logging
import argparse
from typing import Optional, Dict, Any
import requests


# -------------------------------------------------------------------
# Web request with retries
# -------------------------------------------------------------------
def fetch_url(
    url: str,
    timeout: int = 5,
    max_retries: int = 3,
) -> Dict[str, Any]:
    """
    Fetch a URL with retry logic and logging.

    Returns:
        dict with:
            - success (bool)
            - status_code (int | None)
            - response_text (str | None)
            - error (str | None)
            - attempts (int)
    """
    delays = [0, 3, 6]  # first try immediately, then 3s, then 6s
    attempts = 0
    last_exception: Optional[str] = None

    for attempt in range(max_retries):
        attempts += 1

        if delays[attempt] > 0:
            time.sleep(delays[attempt])

        try:
            logging.info("Attempt %s - Requesting %s", attempts, url)
            response = requests.get(url, timeout=timeout)

            # Raise exception for HTTP 4xx / 5xx
            response.raise_for_status()

            # Catch time between sending the request and receiving the response headers
            elapsed_ms = response.elapsed.total_seconds() * 1000

            logging.info(
                "Attempt %s - SUCCESS (status_code=%s, time=%.2f ms)",
                attempts,
                response.status_code,
                elapsed_ms,
            )

            return {
                "success": True,
                "status_code": response.status_code,
                "response_text": response.text,
                "response_time_ms": elapsed_ms,
                "error": None,
                "attempts": attempts,
            }

        except requests.exceptions.Timeout:
            last_exception = "Timeout"
            logging.warning("Attempt %s - TIMEOUT", attempts)

        except requests.exceptions.HTTPError as e:
            last_exception = "HTTP error: %s", e.response.status_code
            logging.warning(
                "Attempt %s - HTTP ERROR (status_code=%s)",
                attempts,
                e.response.status_code,
            )

        except requests.exceptions.RequestException as e:
            last_exception = str(e)
            logging.error("Attempt %s - NETWORK ERROR: %s", attempts, e)

    # All retries failed
    logging.error("FAILED after %s attempts - Last error: %s", attempts, last_exception)

    return {
        "success": False,
        "status_code": None,
        "response_text": None,
        "response_time_ms": None,
        "error": last_exception,
        "attempts": attempts,
    }


# -------------------------------------------------------------------
# CLI handling
# -------------------------------------------------------------------


def main() -> None:
    """This add url as an argument and add timeout with a default value."""
    parser = argparse.ArgumentParser(
        description="Make a web request with retries and logging"
    )
    parser.add_argument(
        "url",
        help="URL to request (e.g. https://example.com)",
    )
    parser.add_argument(
        "--timeout",
        type=int,
        default=5,
        help="Request timeout in seconds (default: 5)",
    )
    parser.add_argument(
        "--debug",
        action="store_true",
        help="Enable debug output",
    )

    args = parser.parse_args()

    # Logging setup
    logging.basicConfig(
        filename="simple-requests.log",
        level=logging.DEBUG if args.debug else logging.INFO,
        format="%(asctime)s [%(levelname)s] %(message)s",
    )

    result = fetch_url(
        url=args.url,
        timeout=args.timeout,
    )

    logging.debug("Result: %s", result)


# -------------------------------------------------------------------
# Entrypoint
# -------------------------------------------------------------------
if __name__ == "__main__":
    main()