L2: Remove 2-second Process.sleep from post_startup — the try/catch
already handles transient noproc errors from the TaskSupervisor.
L3: Remove Process.sleep from delete_device — in-flight jobs already
handle the race condition via verify_polling_assignment_unchanged.
The blocking sleep was unnecessary and delayed web requests by 500ms.
Performance:
- schedule_live: preload page once instead of get_schedule!/1 per row
- alert_live + alerts: DB-side status filter; Repo.aggregate counts replace length/Enum.count over 500-row fetches on every event
- dashboard_live: drop duplicate get_device_status_counts; cap active alerts to 20 + use count_active_alerts/1
- maintenance.active_windows_for_device: 3 round-trips collapsed into one query (per-site-id branch keeps Postgres parameter types unambiguous)
- sites.build_site_tree: O(N^2) -> O(N) via group_by(parent_site_id)
- accounts.sole_owner_organizations: single group_by + having instead of per-org Repo.aggregate loop
- agents + agent_live (org + admin): count_assigned_devices_batch/1 + count_agent_polling_targets/1 (no preloads)
- alert_digest_worker: list_alerts_by_ids/1 batches digest fetch
- gaiia: distinct: true at DB; limit 50 on bidirectional ilike
Indexes:
- maintenance_windows(organization_id, starts_at, ends_at) WHERE suppress_alerts = true
- alerts(check_id) WHERE resolved_at IS NULL
Antipatterns:
- agents.delete_agent_token: PubSub.broadcast moved outside Repo.transaction so a rollback no longer leaves subscribers acting on a non-existent deletion
- integrations_controller.to_atom_keys: replaced String.to_existing_atom on user-controlled JSON keys with explicit allowlist
- 9 Task.start callsites converted to Task.Supervisor.start_child(Towerops.TaskSupervisor, ...) so background DB writes survive shutdown (test-mode discovery shims left as-is for sandbox semantics)
Promoted pure presentation and utility helpers from `defp` to `def @doc false`
across ~20 LiveViews, Oban workers, and sync modules so they're reachable from
unit tests. Refactored several `cond` blocks into idiomatic function heads with
guards. Added ~250 new test cases in new files under test/towerops and
test/towerops_web, including DB-backed tests for CnMaestro.Sync and
AlertNotificationWorker, and removed dead LiveView tab components and
CapacityLive (no callers anywhere in lib/test).
Configured mix.exs test_coverage.ignore_modules to exclude vendored third-party
code (SnmpKit, protobuf-generated Towerops.Agent.*, Absinthe GraphQL types,
Phoenix HTML modules, Inspect protocol impls) from coverage calculations —
these are not our project code.
Coverage: 66.93% → 70.09%. Full suite: 10,127 tests, 0 failures.
CRITICAL FIXES:
- Fix unsafe pattern matching in SNMP discovery that would crash on timeout
- Changed {:ok, _} = ... to proper case statements with error handling
- Extracted safe_discover/3 helper to reduce cyclomatic complexity
- Added fallback to empty lists and warning logging for timeouts
- Affects: discover_vlans, discover_ip_addresses, discover_processors, discover_storage
MEMORY LEAK FIXES (JS Hooks):
- GlobalSearchTrigger: Added destroyed() cleanup for click listener
- SidebarCollapse: Added destroyed() cleanup for click listener
- ThemeSelector: Added destroyed() cleanup for phx:set-theme window listener
- NetworkMap: Added destroyed() cleanup for 3 button listeners (zoom in/out/fit)
- All hooks now properly store handler references and remove listeners on unmount
LIVEVIEW FIXES:
- Added phx-update="ignore" to 5 SensorChart hooks to prevent chart re-initialization
- Added catch-all handle_info(_msg, socket) to 5 LiveViews to prevent crashes on unexpected messages
- device_live/show.ex, device_live/index.ex, alert_live/index.ex, activity_feed_live.ex, agent_live/index.ex
N+1 QUERY FIXES:
- Created Gaiia.get_site_subscriber_summaries/1 batch function
- Refactored alert_live and device_live to use batch query instead of looping
- Reduces queries from N to 1 when loading site subscriber data
Impact:
- Prevents discovery worker crashes during SNMP timeouts
- Eliminates memory accumulation from leaked event handlers
- Prevents chart state loss on LiveView updates
- Prevents LiveView crashes from unexpected PubSub messages
- Improves database performance by eliminating N+1 queries in alert/device views
- Passes credo --strict with 0 issues
Reviewed-on: graham/towerops-web#132
Set up mix_gleam archive, gleam_stdlib, and gleeunit deps. Add Gleam
compiler to all Dockerfiles, CI workflows, nix shell, and .tool-versions.
Rewrite Numeric, QueryHelpers, and URLValidator from Elixir to Gleam with
full ExUnit test coverage. Update all callers to use the Gleam modules
directly via :towerops@module syntax. Remove duplicate sanitize_like/1
private functions in snmp.ex and trace.ex.
Reviewed-on: graham/towerops-web#98
- Add handle_info for {:alert_changed, org_id} in AlertLive.Index and DashboardLive
to properly handle organization-level alert change broadcasts
- Fix get_primary_owner query to prioritize is_default memberships first,
ensuring the organization creator is always returned when multiple owners exist
Resolves 5 test failures related to PubSub message handling and
deterministic primary owner selection.
- Fix CLOAK_KEY placeholder in nix shell (invalid base64)
- Fix error HTML test assertion to match actual template
- Fix Gaiia sync: read 'subnet' field instead of 'block' for IP blocks
- Fix Gaiia sync: extract nested status name from subscription objects
- Fix security headers tests for environment detection
- Fix mobile auth tests to use raw_token
- Fix LiveView test assertions to match actual template content
- Fix SNMP config test expectations for test environment
- Refactor: resolve all Credo complexity/nesting issues
- Extract helper functions in NetBox sync, VISP sync, Sonar sync
- Flatten nested conditionals in settings, integrations, alerts
- Use with/validate_present pattern for connection testing
- Fix broken route paths in dashboard (/discovery, /subscribers/trace, /config-changes)
- Fix insights empty state settings link (org-scoped route)
- Add underscores to all 86400 literals across 6 files
- Alphabetize aliases in search.ex and agent_channel.ex
- Extract changelog parser helper to reduce nesting
- Extract dashboard impact calculation to reduce nesting
- Refactor agent_channel config change detection (pattern match, extract function)
- Combine double Enum.reject into single call in trace.ex
- Fix line length in trace.ex search query
- Replace length/1 > 0 with != [] in trace_live
- Run mix format on all files
- Group alerts by site (tower/location) with collapsible sections
- Show alert count badges per site, critical count highlighted
- Color-code alerts by severity and age (red >1h, orange >15m, yellow new)
- Add Resolve button with confirmation dialog
- Show subscriber impact from Gaiia inventory at site and alert level
- Filter tabs: Unresolved, Critical, All, Resolved with counts
- Sort options: Severity (default), Oldest First, Subscriber Impact
- Sites with most critical alerts and highest subscriber impact sort first
- Use DaisyUI collapse, badge, tab, and btn components
Transform the dashboard into a single-pane-of-glass command center that
blends operational metrics with business context from Gaiia subscriber data.
- Extend insight schema with multi-source support (snmp, gaiia, system)
- Add Oban workers for automated insight generation (device health, system, gaiia)
- New Dashboard context with health score computation and site summaries
- Rewrite dashboard LiveView with health overview, alert/insight feeds, site grid
- Add source filter pills for insights with URL state management
- Add metrics bar to site detail pages (device count, alerts, subscribers, MRR)
- Add subscriber/MRR context to alert list site links
- Add subscriber badges to device list site headers
- Real-time PubSub updates for alerts on dashboard
Always broadcast from update_device_status/2 so the device index
LiveView refreshes even when status hasn't changed. Add a 15-second
tick timer to keep "Last Checked" timestamps fresh between polls.
Scope alert PubSub topics to organization for defense-in-depth.
Extract duplicate access control logic from multiple LiveView files into
a reusable AccessControl helper module.
**Changes:**
- NEW: lib/towerops_web/live/helpers/access_control.ex
- NEW: test/towerops_web/live/helpers/access_control_test.exs
- Refactor device_live/index.ex to use AccessControl.verify_site_access/2
and verify_device_access/2
- Refactor device_live/form.ex to use AccessControl.verify_device_access/2
- Refactor alert_live/index.ex to use AccessControl.verify_alert_access/2
- Refactor device_live/show.ex to use AccessControl.verify_device_access/2
- Remove unused Repo aliases from refactored files
**Benefits:**
- Reduces code duplication across 7+ locations
- Centralizes security-critical access checks
- Improves testability (helper module has >90% coverage)
- Consistent error handling across all LiveViews
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
Change the default filter from 'all' to 'active' on the alerts page.
This shows only active alerts by default, which is more useful for
monitoring current issues. Users can still click 'All Alerts' to see
the complete history.
