feat: Add /userinfo command to fetch Reddit user data

[lucaspolo]

This commit introduces a new command /userinfo (alias /ui) that allows you to fetch information about a Reddit user.

New functionality:

• I added a get_user_info(username) function in reddit_crawler.py to retrieve user details (name, karma, account creation date) from the Reddit API (/user/{username}/about.json).
• I implemented the user_info(update, context) command handler in bot.py. This function processes the command, calls the crawler, formats the information (including a human-readable account creation date), and sends it to you on Telegram.
• I handled cases where the username is missing, the user is not found on Reddit, or an API error occurs.
• I registered the new command and its alias in bot.py.

Testing:

• I added unit tests for get_user_info in tests/crawlers/test_crawler.py to cover successful data retrieval, user-not-found scenarios, and API errors.
• I added unit tests for the user_info command handler in tests/ui/test_bot.py to verify correct message formatting and error handling for various scenarios (successful lookup, user not found, no username, API error).

All new tests are passing.

[Copilot]

Pull Request Overview

Adds a new /userinfo (alias /ui) command to fetch Reddit user details via the Reddit API, with supporting crawler logic and unit tests.

• Added get_user_info(username) in reddit_crawler.py to retrieve and parse user data.
• Implemented user_info handler in bot.py, registering /userinfo and /ui, formatting timestamps, and handling errors.
• Covered new behavior with unit tests in both tests/ui/test_bot.py and tests/crawlers/test_crawler.py; updated Python version specifier in pyproject.toml.

Reviewed Changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
tests/ui/test_bot.py	Added tests for /userinfo command covering success, not-found, missing username, and API errors
tests/crawlers/test_crawler.py	Added tests for get_user_info covering successful retrieval, 404, and API failures
redditbot/ui/bot.py	Introduced user_info handler, registered new commands, and formatted creation date
redditbot/crawlers/reddit_crawler.py	Added get_user_info async function to call /user/{username}/about.json and handle responses
pyproject.toml	Changed python = "3.12" to python = "~3.12.0"

Comments suppressed due to low confidence (1)

redditbot/ui/bot.py:114

• The signature references CallbackContext but there’s no import for it in this file. Please add from telegram.ext import CallbackContext to avoid a NameError.

async def user_info(update: Update, context: CallbackContext):

[Copilot]

[nitpick] Catching all Exception can mask unexpected errors. Consider narrowing this to httpx.HTTPError (or the specific exception types) so other issues bubble up.

Suggested change

	except Exception as e:
	logging.error(f"Error fetching user info for {username}: {e}")
	await update.message.reply_text('Sorry, something went wrong while fetching user information.')
	except httpx.HTTPError as e:
	logging.error(f"HTTP error while fetching user info for {username}: {e}")
	await update.message.reply_text('Sorry, there was a network error while fetching user information.')
	except Exception as e:
	logging.error(f"Unexpected error fetching user info for {username}: {e}")
	raise

[Copilot]

[nitpick] The docstring says it raises a generic Exception, but the code actually raises httpx.HTTPStatusError. Update the docstring to reflect the specific exception type.

Suggested change

	Exception: If there is an API error.
	httpx.HTTPStatusError: If there is an API error.