Implements automatic connection draining to balance load across cluster nodes:
- ConnectionMonitor tracks CPU usage and connection counts across nodes
- Triggers draining when node is overloaded (>70% CPU or 2x avg connections)
- LiveViews gracefully disconnect and reconnect to less loaded nodes
- Helps prevent single pod from handling all WebSocket connections
Also fixes Mic-E packet parsing to properly extract altitude data and
remove telemetry suffixes from comments.
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Co-Authored-By: Claude <noreply@anthropic.com>
Remove Cachex caching from the has_weather_packets function to ensure
real-time data display. The function now queries the database directly
for weather packet information.
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Co-Authored-By: Claude <noreply@anthropic.com>
When a new deployment occurs in k8s, all connected LiveViews now receive
a notification to update their deployment timestamp display.
Changes:
- Added DeploymentNotifier GenServer that broadcasts deployment events
- LiveViews subscribe to "deployment_events" PubSub topic
- When DEPLOYED_AT env var is set (k8s deployments), a notification is
sent after app startup
- LiveViews handle the deployment event and update their timestamp
This ensures that when a new version is deployed, users see the
deployment timestamp update in real-time without needing to refresh
their browser.
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Co-Authored-By: Claude <noreply@anthropic.com>
The map wasn't receiving real-time packet updates because:
1. LiveView wasn't subscribed to StreamingPacketsPubSub
2. LiveView wasn't handling {:streaming_packet, packet} messages
3. Packets weren't being broadcast to both PubSub systems
Changes:
- Added StreamingPacketsPubSub subscription with viewport bounds filtering
- Added handler for {:streaming_packet, packet} messages
- Update subscription bounds when map viewport changes
- Properly unsubscribe on LiveView termination
- Also broadcast packets to SpatialPubSub (in addition to StreamingPacketsPubSub)
Now the map only receives packets within its current viewport bounds,
reducing unnecessary data transfer and improving performance.
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The 'Last Update' timestamp now correctly shows when the last real-time
packet was received, not when the map bounds changed or historical data
was loaded.
Changes:
- Removed timestamp update when map bounds change (was incorrectly
resetting the timer)
- Added periodic UI update timer (every 30 seconds) to refresh the
'time ago' display so it counts up properly (e.g., "2 minutes ago",
"5 minutes ago", etc.)
- The timestamp only updates when actual real-time packets are received
via PacketProcessor
Now the sidebar will show how long it's been since the last packet was
received, updating every 30 seconds to keep the display current.
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Co-Authored-By: Claude <noreply@anthropic.com>
Previously, the deployment timestamp was set to DateTime.utc_now() when
the application started, which meant it would always show as recent in
k8s environments where pods are recreated on each deployment.
This commit:
- Updates Release.init() to check for DEPLOYED_AT environment variable
- Falls back to current time if env var is not set (backwards compatible)
- Adds proper ISO8601 timestamp parsing with error handling
- Updates GitHub Actions deploy workflow to set DEPLOYED_AT during deployment
- Creates k8s patch file for future manual deployments
The deployment timestamp will now persist across pod restarts in k8s,
showing the actual deployment time rather than pod startup time.
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Co-Authored-By: Claude <noreply@anthropic.com>
This commit addresses two major areas:
1. Crash Prevention & Error Handling:
- Added error handling to all database queries to prevent crashes
- Implemented circuit breaker pattern for APRS-IS connection
- Added timeouts to all Redis operations (5 second timeout)
- Fixed unsafe pattern matches that could cause MatchError crashes
- Added try/rescue blocks around background tasks
- Improved socket operation error handling with proper cleanup
- Enhanced packet cleanup worker with comprehensive error handling
2. RF Path Station Markers:
- Fixed issue where digipeater/iGate icons weren't shown when searching for callsigns
- Now loads and displays position markers for all stations in the RF path
- Extracts RF path stations from tracked callsign packets
- Fetches latest position for each digipeater/iGate
- Properly displays complete RF path visualization with station positions
Technical details:
- Added Process.alive? checks before sending messages
- Fixed resource cleanup in terminate functions
- Added proper error handling to File.read operations
- Implemented safe wrapper for ShutdownHandler health checks
- All changes ensure the app continues running even when errors occur
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Co-Authored-By: Claude <noreply@anthropic.com>
- Remove static Redis PubSub configuration from runtime.exs
- Add dynamic pubsub_config/0 function in application.ex
- Configure PubSub adapter based on cluster_enabled and REDIS_URL at startup
- Ensures proper initialization order for distributed deployments
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This adds a "Last Update" section below the navigation that shows:
- Relative time ("less than a minute ago")
- Exact UTC timestamp ("2025-07-25 19:04 UTC")
Updates automatically whenever LiveView receives packet updates or map bounds changes.
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Co-Authored-By: Claude <noreply@anthropic.com>
- Added missing CSS for slideover panel with proper width and positioning
- Fixed overflow issues by adding box-sizing: border-box
- Adjusted Track button padding from px-6 to px-4 to prevent cutoff
- Added whitespace-nowrap and flex-shrink-0 to prevent button text wrapping
- Ensured proper panel width of 352px on desktop with transform animations
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Co-Authored-By: Claude <noreply@anthropic.com>
- Added base CSS styles for slideover panel with proper positioning
- Increased right padding (pr-8) in content area to prevent button cutoff
- Set overflow to hidden on panel container to prevent scrollbar issues
- Ensures Track button and other content are fully visible
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Co-Authored-By: Claude <noreply@anthropic.com>
- Add comprehensive mobile viewport meta tags for better mobile experience
- Implement touch gesture support with long-press to show station info
- Create mobile-specific CSS with touch target optimization (44px minimum)
- Add safe area insets support for notched devices
- Position zoom controls at bottom-right on mobile for thumb accessibility
- Optimize map performance on mobile with canvas renderer
- Fix desktop sidebar toggle button clipping when slideover is open
- Improve responsive design for slideover panels and popups
- Add landscape mode and high DPI screen optimizations
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Co-Authored-By: Claude <noreply@anthropic.com>
Fixed issue where stationary stations like K5SGD-D were showing multiple
positions due to minor GPS accuracy variations. The previous 15-meter
threshold was too strict for typical GPS drift which can vary 5-30 meters.
- Increased default threshold in GeoUtils from 10m to 50m
- Updated packet processor to use 50m threshold for movement detection
- Verified with K5SGD-D showing ~24m variations that are now ignored
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Co-Authored-By: Claude <noreply@anthropic.com>
This change eliminates all external CDN dependencies by bundling JavaScript
libraries locally using esbuild. All vendor files are now served from the
application's own assets, improving reliability and privacy.
Changes:
- Created assets/js/vendor.js to bundle all external libraries
- Added vendor bundle configuration to esbuild in config files
- Updated all templates to use local vendor.js instead of CDN scripts
- Created download-vendor-files.sh script to fetch vendor libraries
- Added vendor files to .gitignore (they're downloaded during setup)
- Updated CSS imports to include vendor stylesheets
- Added vendor build step to assets.deploy mix task
Bundled libraries:
- Leaflet 1.9.4 (mapping library)
- Leaflet.heat 0.2.0 (heatmap plugin)
- Leaflet.markercluster 1.5.3 (marker clustering)
- OverlappingMarkerSpiderfier 0.2.6 (overlapping marker handling)
- Chart.js 4.5.0 (charting library)
- chartjs-adapter-date-fns 3.0.0 (date adapter for Chart.js)
All functionality tested and working correctly with local bundles.
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Co-Authored-By: Claude <noreply@anthropic.com>
Implemented URL persistence for map settings to preserve user preferences:
- Added `trail` parameter for trail duration (1, 6, 12, 24, 48, 168 hours)
- Added `hist` parameter for historical data hours (1, 3, 6, 12, 24 hours)
- Parameters only appear in URL when different from default value (1 hour)
Changes:
- Updated handle_url_update to include trail and hist parameters
- Modified mount to parse these parameters on page load
- Updated handle_params to parse parameters on URL changes
- Added update_url_with_current_state helper function
- Modified update_trail_duration and update_historical_hours event handlers
to update URL when settings change
- Fixed finalize_mount_assigns to preserve parsed values
This allows users to share or bookmark URLs with specific trail duration
and historical data settings, improving the user experience.
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Co-Authored-By: Claude <noreply@anthropic.com>
When changing trail duration and historical data settings, historical positions
would show up on the map but trail lines wouldn't connect them. This was caused
by a mismatch between trail ID generation and callsign extraction.
## Changes
- Fix getTrailId() to properly extract base callsigns from historical marker IDs
- Add setTrailDuration() method to TrailManager for dynamic duration updates
- Add LiveView event to synchronize trail duration changes with client
- Add comprehensive tests for historical ID handling
## Problem
Historical markers have IDs like "hist_CALLSIGN_123" but getTrailId() was
returning the full ID while TrailManager.extractBaseCallsign() extracted just
"CALLSIGN", creating separate trails instead of connected ones.
## Solution
Updated getTrailId() to extract base callsigns from historical IDs using the
same logic as TrailManager, ensuring all positions from the same station use
the same trail ID and connect properly.
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Co-Authored-By: Claude <noreply@anthropic.com>
Removed three logger.info statements that were cluttering the logs:
- "RF path hover start - path: ..."
- "Parsed path stations: ..."
- "Found x station positions"
These were debug statements that are no longer needed in production.
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Co-Authored-By: Claude <noreply@anthropic.com>
- Increase debounce time from 300ms to 400ms for bounds updates
- Cancel in-progress historical loading when new bounds are scheduled
- Add stale update detection to skip outdated bounds updates
- Clear timer reference and pending bounds when processing updates
- Add debug logging for cancelled loads and stale updates
This prevents overlapping historical data loads during rapid zoom
changes, eliminating duplicate packets and improving performance.
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
The function was sending a message but not returning the socket,
causing an ArgumentError when the result was passed to assign/3.
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
Add missing :historical_packets initialization to prevent KeyError when
HistoricalLoader tries to access it during zoom-based display handling.
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Co-Authored-By: Claude <noreply@anthropic.com>
- Remove duplicate received_at indexes (packets_received_at_asc_idx and packets_recent_hour_idx)
that were consuming 423 MB, keeping only packets_received_at_idx
- Fix KeyError by initializing missing :all_packets and :visible_packets in socket assigns
- All tests now pass successfully
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
- Renamed predicate functions to follow Elixir conventions:
- is_finite? → finite?
- is_finite_number? → finite_number?
- is_finite_float? → finite_float?
- Fixed all function returns to ensure proper nil handling
- Applied mix format to all files
- All tests pass with no compilation warnings
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Co-Authored-By: Claude <noreply@anthropic.com>
Security improvements:
- Added sanitize_numeric_string to remove dangerous characters
- Limited input string length to prevent DoS attacks (20 chars for numbers)
- Added is_finite? checks to prevent infinity/NaN values
- Validate coordinate ranges (lat: -90 to 90, lng: -180 to 180)
- Added safe_parse_coordinate with proper validation
- Updated to_float in EncodingUtils with security validations
- Protected against integer overflow in coordinate conversions
- Added sanitize_path_string for APRS path validation
All coordinate inputs from users are now:
1. Sanitized to remove injection characters
2. Length-limited to prevent resource exhaustion
3. Validated for finite values (no infinity/NaN)
4. Checked against valid geographic ranges
5. Given safe fallback defaults
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
- Implemented dual-strategy pruning based on overage size
- Small overages (<10 packets): Only remove exactly what's needed
- Large overages: Batch prune with 20% buffer to reduce frequency
- Used Map.drop for more efficient bulk deletion
- Added Stream for lazy evaluation in small overage case
- Reduces complexity from O(n log n) on every insertion to:
- O(k log k) for small overages where k << n
- Amortized O(n log n) for large overages with buffering
- This significantly improves performance when managing thousands of packets
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Co-Authored-By: Claude <noreply@anthropic.com>
- Fixed PHG parsing test to match actual parser behavior
- Fixed movement test to properly handle batch loading behavior
- Movement test now sets bounds and uses higher zoom level
- Added helper function to flush events during test setup
- All tests now passing with clean compilation
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
