The ST10's /presets response after a factory reset emits self-closing
<preset/> entries with no ContentItem child. cmd/soundtouch-cli's
getPresets() handled the missing ContentItem in GetDisplayName() but
then dereferenced preset.ContentItem.Source on the next line, panicking
with "invalid memory address or nil pointer dereference" the moment the
loop reached the first empty entry.
A second placeholder shape was observed on healthy devices that were
never reset: <preset id="0"><ContentItem source="INVALID_SOURCE"
isPresetable="true"/></preset>. ContentItem is non-nil here, so the
previous "ContentItem != nil" guard at other call sites still let
these placeholders through into listings and into the AfterTouch
datastore.
Fix shape:
pkg/models/presets.go - extend Preset.IsEmpty() to recognise both
shapes (ContentItem == nil, OR Source == "" / "INVALID_SOURCE").
HasPresets, GetEmptyPresetSlots and GetUsedPresetSlots become honest
about which slots actually carry playable content.
cmd/soundtouch-cli/cmd_info.go (the crash site) - filter the slice
via IsEmpty before the print loop, and switch the still-printed
fields to the existing nil-safe Get* helpers.
pkg/service/setup/setup.go - upgrade syncPresets's "ContentItem ==
nil" continue-guard to IsEmpty so Shape B placeholders don't get
persisted in the AfterTouch datastore and then surface as junk
rows in the admin web UI.
cmd/soundtouch-cli/cmd_events.go, cmd/websocket-demo/main.go - same
nil-guard upgrade. These already nil-checked so were crash-safe;
the change is for consistency and to stop printing
"Preset 0: (INVALID_SOURCE)" demo lines.
examples/preset-management/main.go - had the same latent crash as
cmd_info.go; same fix shape.
Regression tests in pkg/models/presets_test.go cover both shapes using
the exact XML observed in the wild: the reporter's three <preset/>
placeholders plus the three INVALID_SOURCE entries from a live device.
The reporter XML test walks every preset through the same accessor
path the CLI used and asserts no panic.
The soundtouch-web Go code does not deref preset.ContentItem.X
anywhere - presets flow through as JSON - so no separate crash trap
exists there. The web frontend will pick up the cleaner data once
syncPresets stops persisting placeholders.
Closes#308
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Implements the speaker-side group API surface (path 1 of the two
approaches gmuth outlined in issue #252): clients form, rename, and
dissolve stereo pairs directly on the device, and the resulting
GroupService.xml persists on disk in the same shape the device emits
over /getGroup.
What landed:
- pkg/models/group.go: Status field + IsEmpty() helper, matching the
GET /getGroup response shape (id-attr, masterDeviceId, roles,
senderIPAddress).
- pkg/client/client.go: GetGroup, AddGroup, UpdateGroup, RemoveGroup.
The endpoint name is /getGroup (not /group, despite some wiki docs)
— confirmed against a real ST-10's /supportedURLs. RemoveGroup uses
GET per the wire spec.
- cmd/soundtouch-cli/cmd_group.go + main.go: new `group` subcommand
with status / create --left --right [--name] / rename / remove,
mirroring gmuth's group.sh recipe.
WebSocket notifications:
- pkg/models/websocket.go: EventTypeGroupUpdated +
GroupUpdatedEvent + dispatch helpers. The device fans this out to
both LEFT and RIGHT speakers on every group mutation, including
empty-group teardowns; the parse test covers both shapes.
- pkg/client/websocket.go: OnGroupUpdated registration and dispatch.
- cmd/soundtouch-cli/cmd_events.go: `group` filter +
handleGroupEvent formatter.
WebSocket observability (came up while validating the above against
a real device):
- New RawMessageHandler type + OnRawMessage hook that fires for every
incoming frame before parsing, with the parse error alongside.
- New --debug flag on `events subscribe` with modes all / unknown /
errors. Raw output goes to stderr so it composes cleanly with
shell redirects.
The pkg/client refactor in this commit also adopts speaker.HTTPPort
(introduced in the previous refactor) — the unexported
defaultSoundTouchPort and three hard-coded 8090 literals are gone.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Add WebSocket event monitoring functionality to soundtouch-cli:
• New 'events subscribe' command for real-time device monitoring
• Support for all 8 event types: nowPlaying, volume, connection, preset, zone, bass, sdkInfo, userActivity
• Event filtering with --filter flag (comma-separated list)
• Duration limits with --duration flag
• Reconnection control with --no-reconnect flag
• Verbose logging with --verbose flag
• Comprehensive test coverage with 349+ test cases
• Full documentation updates in CLI-REFERENCE.md and websocket-events.md
Usage examples:
- soundtouch-cli --host 192.168.1.100 events subscribe
- soundtouch-cli --host 192.168.1.100 events subscribe --filter volume,nowPlaying
- soundtouch-cli --host 192.168.1.100 events subscribe --duration 5m --verbose
Resolves README discrepancy - the documented command now works as expected.
All golangci-lint issues resolved, maintains code quality standards.
Tobias GesellchenandClaude Sonnet 4.6