Telegram notifications v1 stash

cline_docs/architecture/decisions/2025-01-26-telegram-notifications.md

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+# Telegram Notifications Integration
+
+## Context
+
+Users need to be notified and respond to Roo Code's requests when they are away from their computer. The system needs to handle two types of interactions:
+1. Approval requests for actions (commands, file operations, etc.)
+2. Open-ended questions requiring user input
+
+## Decision
+
+We will integrate Telegram as our notification provider because:
+1. It has a robust API for two-way communication
+2. It's widely available across platforms
+3. It provides secure bot tokens for authentication
+4. Messages can be formatted with Markdown
+5. It has a simple webhook system for real-time updates
+
+### Architecture
+
+The notification system consists of several components:
+
+1. **NotificationManager**: A singleton service that:
+   - Manages notification providers (currently Telegram)
+   - Routes notifications to appropriate providers
+   - Handles response callbacks
+   - Maintains provider configurations
+
+2. **TelegramProvider**: Implements the NotificationProvider interface:
+   - Sends formatted messages via Telegram Bot API
+   - Uses ngrok for local webhook tunneling
+   - Polls for responses when webhooks aren't available
+   - Parses responses based on notification type
+
+3. **NotificationSettings UI**: React component in the webview that:
+   - Allows users to enable/disable notifications
+   - Configures Telegram bot token and chat ID
+   - Sets polling interval for responses
+
+### Message Flow
+
+1. **Approval Requests**:
+   ```
+   [Extension] -> NotificationManager -> TelegramProvider -> [Telegram]
+   Message: "Approve command: git push"
+   Response: "approve" or "deny"
+   ```
+
+2. **Questions**:
+   ```
+   [Extension] -> NotificationManager -> TelegramProvider -> [Telegram]
+   Message: "What branch should I create?"
+   Response: [Free-form text]
+   ```
+
+### Security Considerations
+
+1. Bot tokens are stored securely in VSCode's global storage
+2. All communication is encrypted via Telegram's API
+3. Responses are validated against request IDs to prevent replay attacks
+4. Only configured chat IDs can interact with the bot
+
+## Implementation Notes
+
+1. **Local Development**:
+   - Uses ngrok for webhook tunneling
+   - Falls back to polling if ngrok is not available
+
+2. **Response Handling**:
+   - Approval requests require exact "approve" or "deny" responses
+   - Questions accept any text response
+   - Responses are matched to requests via unique IDs
+
+3. **Error Handling**:
+   - Failed notifications are logged but don't block the system
+   - Retries are implemented for transient failures
+   - Users are notified of configuration issues
+
+## Alternatives Considered
+
+1. **Email Integration**:
+   - Rejected due to complexity of handling responses
+   - SMTP setup too cumbersome for users
+
+2. **Custom Mobile App**:
+   - Rejected due to development overhead
+   - Distribution and maintenance challenges
+
+3. **Desktop Notifications**:
+   - Rejected as it doesn't solve the away-from-computer use case
+
+## Future Considerations
+
+1. Add support for multiple notification providers
+2. Implement message priority levels
+3. Add support for rich media responses (files, images)
+4. Add support for notification grouping and threading