feat: add comprehensive wireless client tracking and monitoring
Implements real-time wireless client monitoring with historical tracking,
LiveView UI, proactive alerting, and cross-browser e2e tests.
Phase 1: Historical Tracking
- Add TimescaleDB hypertable for wireless_client_readings
- Batch insert client metrics every 60 seconds from DevicePollerWorker
- 90-day retention with compression after 7 days
- Continuous aggregates for hourly (1 year) and daily (5 years) rollups
Phase 2: LiveView UI
- Add wireless tab to device detail page
- Real-time client list with PubSub updates
- Signal strength and SNR badges with 5-level thresholds
- Display MAC, IP, subscriber, TX/RX rates, distance, uptime
- Subscriber matching via device_subscriber_links
- Empty state handling
Phase 3: Proactive Alerting
- WirelessInsightWorker runs every 5 minutes via Oban cron
- 4 insight types with auto-resolution:
* wireless_signal_weak: < -75 dBm (warning), < -85 dBm (critical)
* wireless_snr_low: < 15 dB (warning), < 10 dB (critical)
* wireless_ap_overloaded: > 50 clients (warning), > 75 clients (critical)
* wireless_client_missing: expected subscribers not connecting
- Hysteresis thresholds prevent alert flapping
- Multi-organization isolation with proper deduplication
Code Quality:
- Refactored reload_current_tab_data to reduce cyclomatic complexity
- Combined double Enum.filter into single pass for efficiency
- Fixed length/1 comparison to use empty list check
- All Credo checks passing
Testing:
- 28 unit tests (ExUnit) - 100% passing
- 15 e2e tests (Playwright) - 100% passing across chromium/firefox/webkit
- Total: 73 tests, all passing
Files changed:
- lib/towerops/workers/wireless_insight_worker.ex (NEW)
- lib/towerops_web/live/device_live/show.ex (wireless tab + refactoring)
- lib/towerops_web/live/device_live/show.html.heex (wireless template)
- lib/towerops/snmp.ex (5 new query functions)
- lib/towerops/gaiia.ex (list_missing_subscribers)
- lib/towerops/preseem/insight.ex (5 new insight types)
- config/runtime.exs (Oban cron schedule)
- test/support/fixtures/snmp_fixtures.ex (NEW)
- test/towerops/workers/wireless_insight_worker_test.exs (NEW)
- test/towerops_web/live/device_live/show_test.exs (9 new tests)
- e2e/tests/wireless-clients.spec.ts (NEW - 15 cross-browser tests)
Graham McIntire
6fd03ace16