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65 lines
2.0 KiB
Markdown
65 lines
2.0 KiB
Markdown
# Task WhatsApp Chatbot
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## Future Steps: User Verification System
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### Core Principles
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1. **Trust-but-Verify Approach**: Leverage WhatsApp's message metadata to minimize API calls while maintaining security
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2. **Progressive Validation**: Verify users naturally through interactions rather than upfront checks
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3. **Background Reconciliation**: Use periodic syncs to maintain data accuracy without impacting real-time performance
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### Message Processing Flow
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```mermaid
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graph TD
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A[Webhook Received] --> B{Valid Payload?}
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B -->|No| C[Ignore]
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B -->|Yes| D{From Known Group?}
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D -->|Yes| E[Update User Last Seen]
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D -->|No| F{Private Chat + Known User?}
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F -->|No| C
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F -->|Yes| E
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E --> G{/tarea Command?}
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G -->|No| C
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G -->|Yes| H{New User?}
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H -->|Yes| I[Add to DB]
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H -->|No| J[Process Command]
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```
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### Database Enhancements
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- **Users Table Additions**:
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- `first_seen`: Timestamp of first interaction
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- `last_seen`: Timestamp of most recent activity
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- `last_confirmed`: Timestamp of last API verification
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- `active_groups`: JSON array of groups user was seen in
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- `verification_status`: Enum (unverified/verified/flagged)
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### Periodic Sync Strategy
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1. **Rotating Group Check**:
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- Verify 1-2 groups per sync cycle
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- Prioritize recently active groups
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2. **User Reconciliation**:
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- Add newly discovered users
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- Update `last_confirmed` for active users
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- Flag inactive users after N days of no activity
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3. **Optimizations**:
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- Cache active group IDs in memory
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- Batch database writes
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- Exponential backoff for API failures
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### Security Considerations
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- Reject messages from:
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- Non-community groups
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- Unknown private chats
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- Implement rate limiting
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- Maintain audit logs of verification events
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### Future Extensibility
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1. **User Profiles**:
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- Store names/profile pictures when available
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- Track interaction history
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2. **Reputation System**:
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- Activity scoring
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- Trust levels
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3. **Notification Preferences**:
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- Per-user settings
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- Do-not-disturb periods
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