| import re |
| from typing import Optional |
|
|
|
|
| |
| def _intent_greeting(text: str) -> Optional[str]: |
| if re.search(r'\b(hi|hello|hey)\b', text, re.IGNORECASE): |
| return 'Hi there! I am an anonymous, rule-based helper. Ask me about hours, contact, or help.' |
| return None |
|
|
|
|
| def _intent_help(text: str) -> Optional[str]: |
| if re.search(r'\b(help|what can you do|commands)\b', text, re.IGNORECASE): |
| return ("I’m a simple rule-based bot. Try:\n" |
| "- 'hours' to see hours\n" |
| "- 'contact' to get contact info\n" |
| "- 'reverse <text>' to reverse text\n") |
| return None |
|
|
|
|
| def _intent_hours(text: str) -> Optional[str]: |
| if re.search(r'\bhours?\b', text, re.IGNORECASE): |
| return 'We are open Mon-Fri, 9am-5am (local time).' |
| return None |
|
|
|
|
| def _intent_contact(text: str) -> Optional[str]: |
| if re.search(r'\b(contact|support|reach)\b', text, re.IGNORECASE): |
| return 'You can reach support at our website contact form.' |
| return None |
|
|
|
|
| def _intent_reverse(text: str) -> Optional[str]: |
| s = text.strip() |
| if s.lower().startswith('reverse'): |
| payload = s[7:].strip() |
| return payload[::-1] if payload else "There's nothing to reverse." |
| return None |
|
|
|
|
| def _fallback(_text: str) -> str: |
| return "I am not sure how to help with that. Type 'help' to see what I can do." |
|
|
|
|
| RULES = [ |
| _intent_reverse, |
| _intent_greeting, |
| _intent_help, |
| _intent_hours, |
| _intent_contact |
| ] |
|
|
|
|
| def route(text: str) -> str: |
| for rule in RULES: |
| resp = rule(text) |
| if resp is not None: |
| return resp |
| return _fallback(text) |
