Fix ChatGPT auto-read aloud for existing conversations

[rosscado]

Summary

Fixes #245 - Prevents auto-read aloud from triggering on previously completed messages when starting a voice call in an existing ChatGPT conversation.

Problem

When starting a voice call on first page load in an existing ChatGPT conversation, the last message was automatically read aloud even though it was already complete before the call started. This was inconsistent with Pi.ai's behavior, which only reads new streaming messages.

Solution

Added explicit tracking to distinguish between new/streaming messages and old/completed messages using a data-saypi-unread attribute:

• New/streaming messages created by ChatHistoryNewMessageObserver are marked with data-saypi-unread="true"
• Old/completed messages discovered on page load have no data-saypi-unread attribute
• Auto-click logic now checks for this attribute before triggering Read Aloud
• The attribute is cleared after clicking to prevent duplicate reads

Technical Changes

Core Implementation

1. Chatbot Interface - Added optional isStreaming?: boolean parameter to getAssistantResponse()
2. AbstractChatbot - Updated to pass isStreaming parameter through to implementations
3. ChatGPTResponse - Sets data-saypi-unread="true" when isStreaming=true
4. Auto-click Guards - All three methods now check for data-saypi-unread attribute:
   • tryClickNativeReadAloud()
   • autoClickNativeReadAloudWhenAvailable()
   • tryOpenMoreActionsAndClickReadAloud()
5. ChatHistoryNewMessageObserver - Passes isStreaming=true for new messages
6. Claude & Pi - Updated signatures (no functional changes)

Tests

• Updated all test cases to pass isStreaming=true for new messages
• Added new test case verifying old messages do NOT auto-click
• All tests pass (6 passed, 1 skipped)

Result

✅ Auto-read aloud only triggers for new messages streaming during an active call
✅ Previously completed messages are NOT read when starting a call
✅ Behavior is consistent with Pi.ai's implementation
✅ All tests pass

Testing Instructions

1. Open an existing ChatGPT conversation with completed messages
2. Start a voice call using the Say, Pi button
3. Verify the last message is NOT automatically read aloud
4. Send a new message while call is active
5. Verify the new message IS automatically read aloud

🤖 Generated with Claude Code

[Copilot]

Pull Request Overview

This PR fixes an issue where ChatGPT's auto-read aloud feature would incorrectly trigger for already-completed messages when starting a voice call in an existing conversation. The solution introduces a data-saypi-unread attribute to distinguish between new streaming messages (which should be read aloud) and old completed messages (which should not).

Key Changes:

• Added isStreaming parameter to the chatbot interface hierarchy to identify new vs. existing messages
• Implemented data-saypi-unread attribute tracking in ChatGPTResponse to mark streaming messages
• Updated all auto-click methods to check for the data-saypi-unread attribute before triggering read aloud

Reviewed Changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
src/chatbots/Chatbot.ts	Added optional isStreaming parameter to interface method signature
src/chatbots/AbstractChatbots.ts	Propagated isStreaming parameter through abstract base class
src/chatbots/ChatGPT.ts	Updated createAssistantResponse to pass isStreaming to ChatGPTResponse
src/chatbots/chatgpt/ChatGPTResponse.ts	Core logic: sets data-saypi-unread attribute for streaming messages and guards auto-click methods
src/chatbots/Claude.ts	Updated method signature for consistency (no functional change)
src/chatbots/Pi.ts	Updated method signature for consistency (no functional change)
src/dom/ChatHistory.ts	Marks new messages as streaming when calling getAssistantResponse
test/chatbots/ChatGPTAutoReadAloud.spec.ts	Updated all test cases to pass isStreaming flag and added test for old message behavior

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