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169 lines
4.9 KiB
Markdown
169 lines
4.9 KiB
Markdown
# Flight Tracker Slack Bot - Design Document
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## Overview
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A Slack bot that allows users to track their flights and automatically posts updates to their personal channels. The bot monitors flight status changes and provides real-time notifications about delays, gate changes, cancellations, and other important flight information.
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## Features
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### Core Functionality
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- Track multiple flights per user
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- Automatic flight status updates
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- Personal channel notifications
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- Flight search and booking reference lookup
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- Timezone-aware scheduling
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### Commands
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#### `/flight-add`
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**Usage:** `/flight-add [airport_code] [DD-MM-YY]`
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**Description:** Add a new flight to track
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**Example:** `/flight-add AA1234 2024-01-15 LAX JFK`
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#### `/flight-remove`
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**Usage:** `/flight-remove [flight_id]`
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**Description:** Stop tracking a specific flight
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**Example:** `/flight-remove 12345`
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#### `/flight-list`
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**Usage:** `/flight-list`
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**Description:** Display all currently tracked flights for the user
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#### `/flight-status`
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**Usage:** `/flight-status [flight_id]`
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**Description:** Get current status of a specific flight
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**Example:** `/flight-status 12345`
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## Data Models
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### User
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- `id`: Unique identifier
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- `slack_user_id`: Slack user ID
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- `slack_channel_id`: User's personal channel ID
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- `timezone`: User's preferred timezone
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- `created_at`: Account creation timestamp
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- `updated_at`: Last update timestamp
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### Flight
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- `id`: Unique identifier
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- `user_id`: Reference to User
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- `flight_number`: Airline flight number
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- `airline`: Airline code/name
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- `departure_airport`: IATA departure airport code
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- `arrival_airport`: IATA arrival airport code
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- `departure_time`: Scheduled departure time
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- `arrival_time`: Scheduled arrival time
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- `flight_date`: Date of flight
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- `status`: Current flight status
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- `gate`: Departure gate (if available)
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- `terminal`: Departure terminal (if available)
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- `booking_reference`: Optional booking reference
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- `is_active`: Whether to continue tracking
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- `created_at`: Timestamp when added
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- `updated_at`: Last status update
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### FlightUpdate
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- `id`: Unique identifier
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- `flight_id`: Reference to Flight
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- `status`: New status
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- `message`: Update message
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- `timestamp`: When the update occurred
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- `notification_sent`: Whether notification was sent
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## System Architecture
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### Components
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1. **Slack Bot Handler**: Processes incoming commands and events
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2. **Flight API Integration**: Interfaces with flight data providers
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3. **Notification Service**: Sends updates to user channels
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4. **Database Layer**: Stores user and flight data
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5. **Scheduler**: Periodic flight status checks
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### External APIs
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- **Flight Data API**: Real-time flight information (e.g., FlightAware, Aviation Stack)
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- **Airport Data API**: Airport and airline information
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- **Slack API**: Bot interactions and messaging
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## Event Handling
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### Command Processing
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1. Parse incoming slash command
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2. Validate parameters
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3. Execute appropriate handler
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4. Store data in database
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5. Send confirmation response
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### Flight Status Updates
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1. Scheduled polling of flight APIs
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2. Compare current status with stored status
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3. Detect changes (delays, gate changes, cancellations)
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4. Generate appropriate notification
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5. Send message to user's channel
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6. Update database records
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### Error Handling
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- Invalid flight numbers
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- API rate limiting
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- Network timeouts
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- Database connection issues
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- Missing user permissions
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## Notification Types
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### Status Changes
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- **Delayed**: Flight departure/arrival time changes
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- **On Time**: Flight returns to scheduled time
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- **Boarding**: Flight begins boarding process
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- **Departed**: Flight has left the gate
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- **Arrived**: Flight has reached destination
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- **Cancelled**: Flight has been cancelled
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- **Gate Change**: Departure gate has changed
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- **Terminal Change**: Departure terminal has changed
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### Timing
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- **24 hours before**: Flight reminder
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- **2 hours before**: Check-in reminder
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- **Real-time**: Status change notifications
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- **Post-flight**: Arrival confirmation
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## Security & Privacy
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### Data Protection
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- Encrypt sensitive flight information
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- Store minimal required data
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- Implement data retention policies
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- Secure API key management
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### Access Control
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- User-specific flight data isolation
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- Personal channel restrictions
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- Rate limiting for API calls
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## Configuration
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### Environment Variables
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- `SLACK_BOT_TOKEN`: Bot authentication token
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- `SLACK_APP_TOKEN`: App-level token for socket mode
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- `FLIGHT_API_KEY`: Flight data API credentials
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- `DATABASE_URL`: Database connection string
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- `NOTIFICATION_INTERVAL`: How often to check for updates (default: 5 minutes)
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### Settings
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- Default notification preferences
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- Timezone handling
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- API rate limits
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- Maximum flights per user
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## Deployment
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### Requirements
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- Node.js runtime
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- PostgreSQL database
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- Redis for caching (optional)
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- External flight data API access
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### Monitoring
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- Flight API response times
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- Database performance
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- Notification delivery rates
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- Error tracking and logging
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