Honor mute when waking the screen for a received message

[caveman99]

Closes #11674

Problem

The screen wakes for every received text message regardless of mute state.

TextMessageModule::handleReceived() fires powerFSM.trigger(EVENT_RECEIVED_MSG) for every text packet, gated only by shouldWakeOnReceivedMessage(). That helper checks whether external notification is enabled, the device role, and the battery level. It never consults the mute flags. EVENT_RECEIVED_MSG transitions LS/NB/DARK to ON, so a muted channel suppressed the banner and still lit the screen.

Separately, MessageRenderer::handleNewMessage() computed mute only for MessageType::BROADCAST, so a DM from a muted node produced both a banner and a wake.

Change

Add isMutedForPacket() to Channels. A DM addressed to us reads the sender's NodeInfoLite mute bit; every other packet reads the mute bit of the channel it arrived on. This is the predicate ExternalNotificationModule already applied to the buzzer, vibra and LED outputs, hoisted so all three call sites share one definition.

• TextMessageModule.cpp: the wake trigger is now gated on it.
• MessageRenderer.cpp: banner suppression now covers muted DM senders, not just muted broadcast channels.
• ExternalNotificationModule.cpp: inline logic replaced by the helper. Behavior unchanged.

Bell and alert messages still break through mute on both paths. isAlert bypasses the muted return in MessageRenderer, and that path calls screen->setOn(true) itself, so an alert on a muted channel still lights the screen.

No protobuf or config change. ChannelSettings.module_settings.is_muted and the NodeInfoLite mute bit already exist, and are already settable from the device menu and via AdminMessage.toggle_muted_node.

Tests

New test/test_muted_source, 10 cases covering both branches:

• broadcast on an unmuted channel, on a muted channel, and with has_module_settings absent
• mute is per channel, not global
• packet.channel == 0 resolves to the primary slot, which is not always slot 0
• DM to us from a muted sender, from an unmuted sender, and from a sender not in the DB
• a DM to us does not inherit its channel's mute state
• a DM to a third party falls back to the channel

Declared in test/state-manifest.tsv (constructs a NodeDB, whose constructor persists a default set in an empty prefs directory).

Verified locally: suite green (10/10), pio run -e native-windows exit 0, trunk fmt clean. MessageRenderer.cpp is not built by native-windows, which is headless, so that file is covered by CI only.

Summary by CodeRabbit

• Bug Fixes
  • Muted direct messages from muted senders are now consistently suppressed.
  • Muted channels no longer trigger message banners, notifications, or screen wake events.
  • Message mute handling correctly distinguishes direct messages from channel broadcasts.
  • Configured alert messages can still trigger notifications and screen wake events, even on muted channels.
  • Message banners no longer appear over modal screens.
• Tests
  • Added coverage for muted sources, alert messages, channel handling, and notification behavior.

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• src/graphics/draw/MessageRenderer.cpp

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📝 Walkthrough

Walkthrough

The change centralizes mute evaluation for direct messages and channels. Alert payload detection is shared through MeshService::isAlertPayload(). Message rendering, external notifications, and screen wake behavior use these checks. Tests cover mute and alert behavior.

Changes

Muted packet handling

Layer / File(s)	Summary
Mute resolution src/mesh/Channels.h, src/mesh/Channels.cpp	Adds isMutedForPacket(). Direct messages to this node use sender mute state. Other packets use channel mute state, with primary-channel fallback.
Alert payload detection src/mesh/MeshService.h, src/mesh/MeshService.cpp	Adds MeshService::isAlertPayload(). It detects ASCII BEL when an alert bell output is enabled.
Message behavior integration and tests src/graphics/draw/MessageRenderer.cpp, src/modules/ExternalNotificationModule.cpp, src/modules/TextMessageModule.cpp, test/test_muted_source/test_main.cpp	Uses shared mute and alert checks for banner suppression, external notification filtering, and screen wake behavior. Banner display also skips modal modules. Tests cover alert configuration, plain text, muted channels, and renamed mute cases.

Estimated code review effort: 3 (Moderate) | ~20 minutes

Merge Risk: ⚪ Minimal · up to 8a049

This PR aligns screen wake and message banners with existing mute settings while preserving alert-message overrides; no actionable merge-blocking risk remains beyond normal checks and review.

Sequence Diagram(s)

sequenceDiagram
  participant TextMessageModule
  participant isMutedForPacket
  participant MeshService
  participant Screen
  TextMessageModule->>isMutedForPacket: evaluate received packet
  isMutedForPacket-->>TextMessageModule: return mute status
  TextMessageModule->>MeshService: check alert payload when packet is muted
  MeshService-->>TextMessageModule: return alert status
  TextMessageModule->>Screen: wake when packet is unmuted or is an alert

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Suggested reviewers: harukitoreda

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 43.75% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 32 functions across 8 files.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly summarizes the primary change: preventing screen wake for muted received messages. It is concise and specific.
Description check	✅ Passed	The description is detailed and covers the problem, implementation, alert behavior, tests, and validation results. It does not reproduce the template attestations, but the missing items are non-critic…
Linked Issues check	✅ Passed	The changes satisfy issue #11674 by suppressing screen wake and message banners for muted channels and muted direct-message senders. Direct messages to third parties retain channel-based mute behavior…
Out of Scope Changes check	✅ Passed	The changes remain within scope. The shared mute helper, alert detection, external-notification reuse, renderer updates, and tests directly support the muted-message wake and rendering requirements.

Full details: Description check

Explanation

The description is detailed and covers the problem, implementation, alert behavior, tests, and validation results. It does not reproduce the template attestations, but the missing items are non-critical because testing evidence is provided.

Full details: Linked Issues check

Explanation

The changes satisfy issue #11674 by suppressing screen wake and message banners for muted channels and muted direct-message senders. Direct messages to third parties retain channel-based mute behavior, and alert messages intentionally bypass mute.

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• Commit unit tests in branch mute-screen-wake

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Actionable comments posted: 1

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Inline comments:
In `@src/modules/TextMessageModule.cpp`:
- Line 39: Update the condition governing EVENT_RECEIVED_MSG in
TextMessageModule to allow packets containing a bell or alert to bypass
isMutedForPacket(mp), while retaining shouldWakeOnReceivedMessage() and the
existing mute behavior for all other packets.

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⛔ Files ignored due to path filters (1)

• test/state-manifest.tsv is excluded by !**/*.tsv

📒 Files selected for processing (6)

• src/graphics/draw/MessageRenderer.cpp
• src/mesh/Channels.cpp
• src/mesh/Channels.h
• src/modules/ExternalNotificationModule.cpp
• src/modules/TextMessageModule.cpp
• test/test_muted_source/test_main.cpp

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[caveman99]

Addressed in ad6837d.

Alert wake exception (TextMessageModule.cpp:39). Valid, fixed. In COLOR display mode handleNewMessage() is skipped, so powerFSM.trigger(EVENT_RECEIVED_MSG) is the only wake an alert gets, and gating it on mute alone dropped it. Added MeshService::isAlertPayload(): an ASCII BEL in the payload while at least one alert_bell_* output is enabled. The wake gate is now "not muted, or an alert".

MessageRenderer now calls the same predicate instead of its own inline bell scan, so the banner and the wake cannot disagree about what counts as an alert. That also lifts the scan's arbitrary 100 byte cap.

Trunk check. The three failures were trufflehog false positives, not formatting. test_broadcast_on_muted_channel_is_muted, test_dm_to_us_from_muted_sender_is_muted and test_dm_to_third_party_uses_channel_mute each carry exactly 35 characters after the test_ prefix, which matches Lob's API key format. Renamed rather than adding permanent ignore comments.

Docstring coverage (50% vs 80%). Not addressed. The count is dominated by test functions, and AGENTS.md says "Keep code comments minimal - one or two lines, max." Adding docstrings to each test case would work against the repo's own convention.

Suite is now 14 cases, all passing. trunk fmt and trunk check clean across all touched files.