| |
| |
| |
|
|
| def simple_sentiment(text: str): |
| """ |
| Tiny, no-cost heuristic so you can demo behavior without extra services. |
| You can swap this later for HF/OpenAI/Azure easily. |
| """ |
| t = (text or "").lower() |
| pos = any(w in t for w in ["love","great","good","awesome","fantastic","excellent","amazing"]) |
| neg = any(w in t for w in ["hate","bad","terrible","awful","worst","horrible","angry"]) |
| if pos and not neg: return "positive", 0.9 |
| if neg and not pos: return "negative", 0.9 |
| return "neutral", 0.5 |
|
|
| CAPS = [ |
| "Echo what you say (baseline).", |
| "Show my capabilities with 'help' or 'capabilities'.", |
| "Handle malformed/empty input politely.", |
| "Classify simple sentiment (positive/negative/neutral).", |
| ] |
|
|
| class EchoBot(ActivityHandler): |
| async def on_members_added_activity( |
| self, members_added: [ChannelAccount], turn_context: TurnContext |
| ): |
| for member in members_added: |
| if member.id != turn_context.activity.recipient.id: |
| await turn_context.send_activity( |
| "Hi! I’m your sample bot.\n" |
| "- Try typing: **help**\n" |
| "- Or any sentence and I’ll echo it + sentiment." |
| ) |
|
|
| async def on_message_activity(self, turn_context: TurnContext): |
| text = (turn_context.activity.text or "").strip() |
|
|
| |
| if not text: |
| await turn_context.send_activity( |
| "I didn’t catch anything. Please type a message (or 'help')." |
| ) |
| return |
|
|
| |
| if text.lower() in {"help","capabilities","what can you do"}: |
| caps = "\n".join(f"• {c}" for c in CAPS) |
| await turn_context.send_activity( |
| "Here’s what I can do:\n" + caps |
| ) |
| return |
|
|
| |
| label, score = simple_sentiment(text) |
| reply = f"You said: **{text}**\nSentiment: **{label}** (conf {score:.2f})" |
| await turn_context.send_activity(reply) |
|
|
