Commit Graph
5 Commits
Author SHA1 Message Date
bd9f461f70 Add system diagnostics, power controls, and WiFi radio toggle to Tools tab (#389)
* Add system diagnostics, power controls, and WiFi radio toggle to Tools tab

Expands the web UI Tools tab with safe, purpose-built controls so users can
manage the Pi without SSHing in, instead of an arbitrary-command terminal
(the web UI has no auth and CSRF is disabled, so a shell would be unsafe).

- System Diagnostics card: renders the existing but previously-unused
  GET /api/v3/system/status endpoint (CPU, memory, temp, disk, uptime),
  with a manual refresh and a 10s poll.
- System Power section: reboot/shutdown buttons wired to the existing
  reboot_system / shutdown_system actions, behind a confirm step, with a
  dedicated powerAction() helper that treats the dropped connection as the
  expected "going offline" outcome rather than an error.
- Network Radio section: WiFi on/off toggle backed by new
  GET/POST /api/v3/wifi/radio endpoints and WiFiManager.set_wifi_radio() /
  get_wifi_radio_state(). Disabling WiFi is refused unless a wired
  connection is present (reusing the existing lockout guards), with an
  explicit force-off confirmation for advanced users.

No new privileged commands: uses nmcli radio wifi on|off (already
sudo-allowlisted) and the existing reboot/poweroff grants, so the
sudoers-alignment guard test stays green. Bluetooth toggle intentionally
omitted since the installer removes the BlueZ stack for LED timing.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019X3he87Ggr1qt8y7mnFeuE

* Harden WiFi radio endpoint and diagnostics poll (review feedback)

Addresses code review feedback on the Tools tab additions:

- api_v3.py: parse the `enabled` POST field with the same string-aware
  coercion as `force`. A plain bool() cast turned {"enabled":"false"} into
  True (enabling instead of disabling) for any non-UI API caller.
- wifi_manager.set_wifi_radio() now returns a reason code alongside
  (success, message); the /wifi/radio error response includes it. The Tools
  UI only shows the force-off confirmation when reason == 'no_ethernet', so a
  genuine nmcli failure surfaces its real error instead of a misleading
  "no wired connection" prompt that would just retry into the same failure.
- tools.html: gate the 10s diagnostics poll on panel visibility
  (document.hidden / offsetParent), so switching to another tab stops the
  recurring /api/v3/system/status calls instead of churning the Pi off-screen.
  The initial load and manual Refresh remain unconditional.

Verified: {"enabled":"false"} now disables (refused w/ reason:no_ethernet),
{"enabled":"true"} enables; inline JS passes node --check; py_compile clean.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019X3he87Ggr1qt8y7mnFeuE

* Narrow WiFi-disable fallback except and add stack trace (review)

Addresses a CodeRabbit nitpick: the fallback handler in set_wifi_radio()'s
disable path caught bare Exception and logged without a traceback. Narrow it to
(OSError, subprocess.SubprocessError) — the errors subprocess.run realistically
raises — and log with exc_info=True for full context on the Pi. Anything
genuinely unexpected now propagates to the endpoint's outer handler (500),
matching the codebase's specific-exception convention.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019X3he87Ggr1qt8y7mnFeuE

---------

Co-authored-by: Claude <noreply@anthropic.com>
2026-07-09 09:22:11 -04:00
3b93024993 feat: activate dormant plugin health/metrics subsystem and surface it in the web UI (#388)
* feat(plugin-system): activate dormant plugin health & metrics subsystem

PluginManager shipped a fully-built health tracker, resource monitor and
circuit breaker that were never instantiated (health_tracker/resource_monitor
were left as None), so the circuit breaker never engaged and the existing
health/metrics API routes always returned "not available".

- DisplayController now wires a PluginHealthTracker and PluginResourceMonitor
  onto the plugin manager, enabling the circuit breaker (a repeatedly-failing
  plugin's update() is skipped after consecutive failures, then retried after
  a cooldown) and per-plugin execution-time metrics. Both persist to the
  shared cache.
- load_plugin() now validates each plugin's config against its JSON schema in
  a strictly warn/degrade-only way: a violation logs a warning and flags the
  plugin degraded in the health tracker, but never changes whether the plugin
  loads or its pass/fail behaviour. Adds PluginHealthTracker.set_degraded(),
  which never touches the circuit breaker.
- ResourceMonitor CPU/memory sampling now reuses a cached psutil.Process and
  reads cpu_percent(interval=None), so monitoring no longer blocks ~100ms per
  call on the display loop's update path.
- Fix DiskCache.get() raising TypeError for max_age=None ("never expires"),
  which silently discarded persisted plugin health/metrics on read and thus
  broke cross-process and post-restart surfacing.
- Fix two dead PluginManager helpers that called non-existent tracker methods.

Tests: new test_resource_monitor, test_plugin_health,
test_plugin_manager_schema_soft; extended test_cache_manager and
test_display_controller.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01UvTav268UXv44ub9K11LYq

* feat(web-ui): surface plugin health, metrics and load state

With the health/metrics subsystem now active in the display service, expose it
in the web UI (which runs as a separate process from the display loop):

- Wire a health tracker / resource monitor backed by the shared on-disk cache
  into the web process so /api/v3/plugins/health and /plugins/metrics read the
  data the display service persists.
- Build those route responses per installed plugin id (the tracker's in-memory
  view is empty in a fresh web process) so cross-process data is included.
- Add state + error_info to /plugins/installed entries so the UI can show why a
  plugin isn't running instead of just loaded:false.
- Add a "Plugin Health" panel to the Tools page (circuit status, avg/max update
  time, update count, last error) plus PluginAPI.getPluginMetrics().

Tests: route-level tests for the health/metrics endpoints in test_web_api.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01UvTav268UXv44ub9K11LYq

* fix(plugin-metrics): refresh cross-process health/metrics reads; type hints

Addresses CodeRabbit review on #388:

- Major: the web process's health/resource trackers cached the first persisted
  read in an in-memory dict (and the CacheManager memory tier held max_age=None
  entries indefinitely), so a long-lived web process showed the first snapshot
  and never reflected the display service's later updates. Add an opt-in
  force_reload path (get_health_summary/get_health_state/_load_health_state and
  get_metrics_summary/get_metrics) that bypasses the in-memory copy and, via a
  new memory_ttl passthrough on CacheManager.get, the cache manager's memory
  tier — so each /plugins/health and /plugins/metrics poll reads fresh persisted
  state. Default behaviour (force_reload=False) is unchanged for the display
  process and existing callers.
- Minor: DiskCache.get type hint is now Optional[int] with the None ("never
  expires") semantics documented, matching MemoryCache.get.

Tests: new force_reload staleness cases in test_plugin_health and
test_resource_monitor.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01UvTav268UXv44ub9K11LYq

---------

Co-authored-by: Claude <noreply@anthropic.com>
2026-07-09 07:54:18 -04:00
9b2f02681d feat(web-ui): detect and surface Raspberry Pi under-voltage/throttling (#383)
* feat(web-ui): detect and surface Raspberry Pi under-voltage/throttling

Adds a vcgencmd get_throttled check to the system-status SSE stream and
surfaces it in the web UI:

- A header badge (next to CPU/Memory/Temp) that stays hidden when healthy,
  turns red when under-voltage/throttling is happening right now, and
  yellow if it happened earlier this session but has since cleared.
- A dismissible top banner (same pattern as the update-available banner)
  that appears while under-voltage/throttling is actively occurring, with
  guidance to check the power supply. Re-appears on a fresh occurrence
  even if a previous one was dismissed.
- A "Power Supply" card on the Overview tab alongside CPU/Memory/Temp/
  Display Status.

Motivated by a real device showing intermittent brightness flicker that
turned out to be ~1 under-voltage event every 30-90s (visible live via
`vcgencmd get_throttled` and dmesg's "Undervoltage detected!" messages) --
there was no way to see this from the web UI, only by SSHing in.

Returns None on non-Pi platforms (no vcgencmd on PATH), matching the
existing guard pattern used for the CPU temperature read.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KEZK1P1Q1fu5pcuVrkrCFZ

* feat(web-ui): add power supply diagnostics detail to Tools tab

The header badge/banner/Overview card added in the previous commit only
show a collapsed "is it bad right now" signal. This adds a "Power Supply"
section to the Tools tab with the full 8-flag breakdown (under-voltage,
throttled, freq-capped, soft-temp-limit -- each split into "right now" vs
"occurred since boot") for actually troubleshooting a recurring issue,
plus a pointer to the README's power supply sizing guidance when something
is or was flagged.

Reuses the existing stats SSE stream (window.statsSource) rather than
adding a new endpoint -- the same payload already drives the header/
banner/Overview card, so this just listens for it too.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KEZK1P1Q1fu5pcuVrkrCFZ

* fix(web-ui): address review findings on power supply monitoring

- Overview card left its "--" placeholder forever on non-Pi platforms since
  the update only handled a truthy data.power. Now explicitly renders "Not
  available" with a neutral icon/color for that case.
- vcgencmd failures logged at debug, invisible in default remote log
  output. Bumped to warning to match the nearby systemctl failure logging.
- The banner/badge/card and the Tools summary line only looked at
  under_voltage_now/throttled_now (+ occurred), silently ignoring
  freq_capped_now/occurred and soft_temp_limit_now/occurred from
  _get_power_status() -- a Pi that's actively soft-thermal-limited or
  frequency-capped showed a green "OK" everywhere except the detailed
  flag table buried in Tools. All four surfaces now fold all four "now"/
  "occurred" flags into the same active/occurred state.
- The banner text was hardcoded to "Under-voltage detected..." even when
  the actual active condition was throttling/freq-capping/thermal limiting.
  Added _activePowerConditionLabels() (shared, non-module global scope) to
  build the banner/tooltip text from whichever flags are actually set.

Skipped: TTL-caching _get_power_status() to avoid "multiplying forks
across browser tabs" -- that premise doesn't hold against this codebase.
_StreamBroadcaster (its own docstring says as much) already runs exactly
one shared generator per tick regardless of client count, identical to
the uncached cpu_temp file-read two lines above it; there's nothing to
multiply.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KEZK1P1Q1fu5pcuVrkrCFZ

* fix(web-ui): address second round of review findings on power monitoring

- updatePowerStatus's falsy-power branch only hid power-stat, leaving
  power-warning-banner visible with stale text if _get_power_status()
  fails transiently. Now hides the banner too and resets the dismissed
  flag, same as the "not active" branch.
- The Tools tab's status badge (and the pre-existing dirty/clean badge
  right next to it) build class names like bg-${color}-100/text-${color}-800
  at runtime. This project hand-rolls its own Tailwind-named utility
  classes in app.css rather than running a real Tailwind build, and the
  light-mode base rules for bg-red-100/bg-yellow-100/bg-green-100/
  text-red-800/text-yellow-800/text-green-800 were simply never defined --
  only some had dark-mode overrides, which are no-ops without a base rule
  in light mode. Added the missing light-mode bases plus the two missing
  dark-mode overrides (bg-yellow-100/bg-green-100), fixing both badges.
- The "occurred earlier" tooltip was a hardcoded string regardless of
  which flag(s) actually fired. Generalized _activePowerConditionLabels()
  to take a suffix ('_now' or '_occurred') and reused it for both tooltips.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KEZK1P1Q1fu5pcuVrkrCFZ

* refactor(web-ui): move Power Supply status off the Overview tab

The Overview tab's "Power Supply" stat card duplicated what the Tools
tab's diagnostics section already shows (summary badge + full flag
breakdown), so drop the card and its now-dead JS rather than keep two
copies in sync. The header badge and warning banner (visible on every
page) are unaffected -- only the Overview-tab card is removed.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KEZK1P1Q1fu5pcuVrkrCFZ

---------

Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>
2026-07-07 09:35:55 -04:00
639e1c3a93 fix(web): repair news ticker custom-feeds save for JSON path (#376)
* feat(install): surface root cause of web dependency install failures

install_dependencies_apt.py previously reported only which packages
failed, not why - the actual apt/pip error was discarded (apt) or
could scroll out of the on_error log tail (pip), leaving "Step 7:
Install web interface dependencies (line 915)" as the only visible
detail.

Capture command output for each install attempt and print a compact
DEPENDENCY INSTALLATION FAILURES summary with the last lines of error
output per package. Also run the installer with `python3 -u` for
real-time, correctly-ordered logging, and widen the on_error tail from
50 to 100 lines so the summary isn't cut off.

* fix(web): repair news ticker custom-feeds save for JSON path

The JS dotToNested() helper converts indexed form fields like
feeds.custom_feeds.0.name into a dict {'0': {name:...}} rather than a
proper array. The form-data path already had fix_array_structures() to
convert those dicts back to arrays before schema validation, but the
JSON path (used by all web-UI saves) never ran that fix, so saving any
custom feed produced a schema validation error: "Expected type array,
got object".

Add _fix_json_arrays() immediately after schema loading on the JSON
path, mirroring the existing fix_array_structures() logic.

Also fix custom-feeds.js getValue() to omit the logo key entirely when
no logo is present instead of returning logo:null, which would fail
schema validation (logo expects type object).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* fix(install,tools): address PR 376 review findings

- first_time_install.sh: add _clone_rpi_rgb() wrapper so retry() cleans
  up any partial rpi-rgb-led-matrix-master dir before each clone attempt
- first_time_install.sh: use apt-get -o DPkg::Lock::Timeout=180 so apt
  handles lock contention natively instead of relying solely on flock TOCTOU check
- install_dependencies_apt.py: pass DPkg::Lock::Timeout=180 to apt-get
  install to avoid failing when unattended-upgrades holds the lock
- install_dependencies_apt.py: add type annotations to all public helpers
- api_v3.py: fix install_plugin_requirements to read plugin_manager from
  api_v3 blueprint attribute instead of the always-None module variable
- tools.html: loadGitInfo() now checks r.ok before parsing JSON and
  surfaces d.status === 'error' with the server's message in the panel

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* fix(tools,api): address three additional review findings

- api_v3.py install_plugin_requirements: replace hardcoded plugin-repos
  fallback with config-driven resolution (plugin_system.plugins_directory),
  matching the pattern used elsewhere in the module
- api_v3.py _fix_json_arrays: recurse into converted and existing array
  elements when items.type is object, so nested numeric-keyed dicts inside
  array items are also normalized
- tools.html toolsAction: check r.ok before r.json() and recover
  gracefully from non-JSON error bodies (HTML 500 pages), consistent
  with the existing loadGitInfo guard

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Chuck <chuck@example.com>
Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-06-29 14:21:05 -04:00
6096a22c3d feat(web): add Tools tab and row address type display setting (#373)
* feat(web): add Tools tab and row address type setting

Adds a Tools/Utilities tab to the web interface with one-click
maintenance buttons that previously required SSH:
- Git status panel (branch, dirty state, recent commits)
- Pull latest (rebase) and force reset to origin/main
- Reinstall base requirements (pip, with output)
- Reinstall per-plugin requirements (pass/fail per plugin)
- Clear __pycache__ directories
- Quick-access restart for display and web services

Also exposes the hzeller row_address_type option (0–4) in the
Display settings tab. The backend already read this value from
config; the UI, API field list, and validation were missing.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* fix(tools-tab): address code review findings

- Add _GIT = shutil.which('git') alongside _SUDO/_JOURNALCTL; return
  503 in force_git_reset and get_git_info if git is unavailable
- Check git branch/status returncodes in get_git_info(); return a clear
  500 error instead of silently treating a failed run as a clean repo
- Cap pip stdout+stderr at 50 KB via _truncate_output() helper to
  avoid OOM on verbose dependency resolution or build failures
- Scrub embedded HTTPS credentials from remote_url via
  _scrub_git_remote_url() using urllib.parse before returning to UI
- Fix clear_pycache to track and report failed deletions separately
  instead of counting them as successes (removed ignore_errors=True,
  wrapped in try/except OSError)

Skipped: plugin_manager-vs-api_v3.plugin_manager (api_v3 is the
Blueprint object; accessing .plugin_manager on it would fail — module-
level variable is the correct pattern used throughout this blueprint);
pages_v3 broad-except (identical to every other _load_*_partial in the
file); base.html HTMX fallback (loadTabContent handles all tabs
generically; named fallbacks only exist for tabs needing JS re-init);
tools.html auth (pre-existing architectural decision — reboot/shutdown
on the same endpoint are also unauthenticated).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* fix(tools-tab): resolve remaining PR review comments

- api_v3: use getattr(api_v3, 'plugin_manager', None) instead of the
  module-level plugin_manager (always None); app.py sets the blueprint
  attribute, not the module global, so the fallback to plugin-repos was
  always taken
- pages_v3: replace broad except Exception in _load_tools_partial with
  specific TemplateNotFound / OSError handlers and add [Pages V3][Tools]
  context prefix to log messages and error responses for easier Pi
  debugging
- base.html: add Tools tab branch to the HTMX-unavailable fallback block
  in loadTabContent so the tab loads gracefully via direct fetch if HTMX
  never initialises

Skipped: auth on execute_system_action — pre-existing app-wide design;
reboot/shutdown and all other system actions share the same exposure.
An app-level auth layer is the correct fix and is out of scope here.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* fix(tools-tab): resolve second-pass review findings

- Wrap per-plugin subprocess.run in try/except TimeoutExpired/OSError so
  one plugin's failure appends a result entry and continues the loop
  rather than collapsing the whole batch into a 500
- Validate double_sided_copies divisibility against chain_length
  (horizontal axis) or parallel (vertical axis) after the range check;
  reads effective axis from the current request or stored config
- Exclude double_sided_fields from the generic key-merge loop so
  double_sided_enabled/copies/axis are never written as root-level keys
- Fix tools.html copy: "then restores the stash" removed — git_pull
  stashes changes but never pops them
- Check r.ok and d.status in loadGitInfo before building the panel;
  backend error messages now surface instead of silently showing a
  false-clean state

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* fix(tools-tab): don't expose filesystem paths in OSError messages

CodeQL flagged str(exc) flowing into the JSON response for the
install_plugin_requirements action. Use exc.strerror instead, which
gives the OS error description ("No such file or directory",
"Permission denied") without the internal filesystem path.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Chuck <chuck@example.com>
Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-06-29 12:19:54 -04:00