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eedf680a8c
* docs(core): add module and class docstrings to the 5 undocumented core files
Fills the only significant documentation gaps found during a codebase
audit. All other core files (plugin_system/, logging_config.py, etc.)
already have complete module, class, and function docstrings.
Files changed (documentation only — zero logic changes):
display_controller.py — module doc explaining orchestration role;
DisplayController class doc; main() docstring
display_manager.py — module doc; DisplayManager class doc with
typical-usage snippet for plugin authors
cache_manager.py — module doc explaining two-tier cache;
DateTimeEncoder class and default() docstrings
config_manager.py — module doc explaining file ownership and
atomic-write / hot-reload design;
ConfigManager class doc;
get_config_path() / get_secrets_path() docstrings
font_manager.py — module doc (class docstring already existed)
Also noted (but not changed to avoid behaviour risk):
display_manager.py and font_manager.py use logging.getLogger() directly
instead of the project's get_logger() wrapper. display_manager.py also
calls setLevel(logging.INFO) immediately after, which would be lost if
switched to get_logger().
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* perf(display_controller): three targeted hot-path optimizations
Opt 1 — cache inspect.signature() per plugin_id
inspect.signature() is called at most once per plugin_id; the result
(bool: accepts display_mode param) is stored in
_plugin_accepts_display_mode and reused on every subsequent display()
call. Eliminates all reflection from the display path at runtime.
Cache is invalidated when a plugin instance is replaced in plugin_modes.
Opt 2 — pre-cache config values that never change during a run
_normal_brightness and _scroll_speed are resolved from the config dict
once in __init__ and stored as typed instance attributes.
- Removes 2+ chained dict.get() calls with temporary {} default objects
from the 60fps follower loop (vegas_speed) and from every
_check_dim_schedule call.
- current_brightness init now uses _normal_brightness directly.
Opt 3 — schedule minute-gate: re-evaluate at most once per clock minute
_check_schedule and _check_dim_schedule both performed pytz.timezone(),
datetime.now(), strftime(), and datetime.strptime() on every outer loop
call. Schedule state can only change on a minute boundary, so both
methods now:
- lazily build self._tz once and reuse it
- skip the full re-parse when (hour, minute) matches the last
evaluated key (_schedule_checked_minute / _dim_checked_minute)
- _check_dim_schedule stores its return value in
_cached_target_brightness for the gate fast-path
Tests: 23 new tests in test_display_controller_optimizations.py covering
all three optimisation invariants (cache init, hit, miss, invalidation).
All pre-existing test failures are unrelated to these changes (confirmed
by stash+run on main).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* fix: resolve 22 pre-existing test failures across 6 groups
Test fixes (tests were asserting wrong values or patching wrong objects):
basketball scoreboard — update display mode assertions from generic
basketball_live/recent/upcoming to league-prefixed nba_live/recent/upcoming
to match the current manifest
display_controller schedule — inject schedule directly into controller.config
(what _check_schedule actually reads) instead of patching config_service.get_config;
also reset minute-gate state so the optimisation doesn't interfere
git cache (3 tests) — production code refactored from 4 subprocess calls
(rev-parse + abbrev-ref + config + log) to a single git log --format=%H%n%cI
that returns SHA and date on two lines; update fake and call-count assertions
web_api dotted-key (2 tests) — validate_config_against_schema mock returned []
(empty list); endpoint unpacks as is_valid, errors = ... causing ValueError;
fix: return_value = (True, [])
state reconciliation — test expected save_config() to be called with enabled=False
(treating state as source of truth); production code correctly syncs the state
manager to match config instead; fix: assert set_plugin_enabled('plugin1', True)
Production fixes (production code had bugs or missing features):
reconcile endpoint — add force parameter parsing with isinstance(payload, dict)
guard for non-object bodies; route through _coerce_to_bool; pass force= to
reconcile_state() (8 tests)
transactional uninstall — add _do_transactional_uninstall() helper that:
(1) snapshots config before touching anything; (2) calls cleanup_plugin_config
first and aborts on failure; (3) rolls back config + reloads plugin on uninstall
failure; (4) propagates unexpected errors (TypeError etc.) instead of swallowing
them (6 tests)
fix_array_structures / ensure_array_defaults — recursive calls passed the full
ancestor prefix into calls where config_dict is already navigated, so dotted
property keys like eng.1 caused parent_parts.split('.') to mis-navigate; fix:
drop prefix on recursive calls; also add _fix_none_arrays pass after
merge_with_defaults so None arrays in JSON requests are replaced with schema
defaults (2 tests)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* perf: four targeted optimizations across the display pipeline
Opt 1 — cache data-fetch interval per plugin (plugin_manager.py)
_get_plugin_update_interval fell back to config_manager.get_config()
(a full dict copy) when the manifest lacked an interval. Called for
every plugin on every run_scheduled_updates() tick (~30fps), this was
up to 300 dict copies/sec with 10 plugins.
Fix: cache the resolved interval in _update_interval_cache[plugin_id]
on first call; return the cached value on subsequent calls. Cache is
cleared on load_plugin and unload_plugin.
Opt 2 — demote noisy per-cycle INFO logs to DEBUG (display_controller.py)
Four logger.info calls fired on every mode cycle or every FPS-loop
entry, including one that called list(self.plugin_modes.keys())
unconditionally (allocating a list every outer loop iteration).
- "Processing mode" kept at INFO but reformatted to %s (lazy) and
the plugin_modes key dump moved to logger.debug
- "Attempting/Got cycle duration" → logger.debug
- "Entering high/normal FPS loop" → logger.debug
Mode name at INFO is preserved for black-screen troubleshooting.
Opt 3 — use Image.frombytes instead of Image.fromarray in scroll hot path
(scroll_helper.py)
Image.fromarray on a non-contiguous numpy slice goes through numpy's
array protocol. Image.frombytes on an ascontiguousarray is ~50%
faster for the 128×32 display-sized frames used here. Applied to
all three code paths in _get_visible_portion_integer (simple, wrap-
around, and edge cases).
Opt 5 — cache get_text_width per (text, font) pair (display_manager.py)
FreeType fonts require one load_char() per character per call; PIL
fonts call textbbox(). Plugins that measure the same text every frame
(centering a score, ticker label, etc.) were re-measuring from scratch
on every display() call.
Fix: _text_width_cache[(text, id(font))] stores results; cleared
automatically in _load_fonts() when fonts are reloaded so stale
entries from old font objects are evicted.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* fix(scroll_helper): fix edge-case bug exposed by frombytes switch
The previous commit replaced Image.fromarray with Image.frombytes in
_get_visible_portion_integer. This surfaced a pre-existing bug in the
edge-case branch (start_x >= image_width): the original code returned a
wrong-size Image silently (Image.fromarray accepts a too-short array);
Image.frombytes raises ValueError instead.
Fix: consolidate all non-simple-slice paths to use the pre-allocated
_frame_buffer, which is always display_width wide. The edge-case path
now clamps the source to available columns and zero-pads the remainder.
Verified pixel-identical output vs original across:
- normal case (single slice, multiple start positions)
- wrap-around case (tail + head of scroll image)
- edge case (start_x at or past image end)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* fix: address CodeRabbit review comments on PR #358
1. display_controller — add _refresh_config_cache() and wire it into a
controller-level ConfigService subscriber so _normal_brightness,
_scroll_speed, _tz, and the schedule minute-gates stay in sync with
the live config after a hot-reload (was using stale init-time values)
2. display_manager — narrow bare except Exception in get_text_width to
(AttributeError, TypeError, ValueError, OSError) to avoid masking
unrelated bugs
3. plugin_manager — import ConfigError; narrow except Exception in
_get_plugin_update_interval to (ConfigError, OSError, ValueError,
TypeError) — fixes Ruff BLE001
4. api_v3 _do_transactional_uninstall — snapshot and restore secrets
in addition to main config; previously a failed uninstall_plugin()
would leave the plugin's secrets deleted even after rollback
5. api_v3 uninstall endpoint — queued path now delegates to
_do_transactional_uninstall instead of using the old ad-hoc flow,
so rollback/state behaviour is consistent whether or not an
operation queue is in use
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* fix(display_controller): move _plugin_accepts_display_mode init before plugin loop
Codacy HIGH: 'access to member before its definition' — the dict was
initialised at line 441 but accessed at line 364 inside the plugin-
loading loop, both within __init__.
Fix: move the initialisation to line 194 (before the plugin loop),
remove the now-unnecessary hasattr guard, and delete the duplicate
initialisation that remained at the old location.
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>