Major improvements to device discovery system:
🔧 **SSDP Discovery Fixed**:
- Fixed networking issue where SSDP used connected UDP socket instead of UDP listener
- SSDP now properly receives unicast responses from multicast requests
- UPnP discovery now works reliably and finds all MediaRenderer devices
✨ **Enhanced DiscoveredDevice Model**:
- Added consistent URL fields (APIBaseURL, InfoURL) for all discovery methods
- Added protocol-specific fields (UPnPLocation, UPnPUSN, MDNSHostname, etc.)
- Added DiscoveryMethod tracking to show how devices were found
- Added device merging support for same device found via multiple protocols
🚀 **Unified Discovery Improvements**:
- Fixed device merging logic to properly combine protocol-specific data
- Discovery methods now correctly show combinations like 'Configuration+SSDP/UPnP+mDNS/Bonjour'
- Removed duplicate configuration device loading in individual services
- All three discovery methods (SSDP, mDNS, Configuration) work together seamlessly
🛠 **Updated Tools & Examples**:
- Updated soundtouch-cli to display new consistent field structure
- Enhanced all example programs with better device information display
- Added new unified discovery example demonstrating all three methods
- Fixed context timeout issues in example programs
📋 **Comprehensive Testing**:
- All tests updated and passing
- Real-world validation with actual Bose SoundTouch devices
- Confirmed discovery methods properly merge device data
Every discovered device now has consistent http://host:port/info URLs regardless
of discovery method, while preserving valuable protocol-specific metadata.
- Force IPv4-only mDNS queries with DisableIPv6=true to avoid routing issues
- Add automatic IPv4 interface selection for better compatibility
- Filter mDNS results to only include SoundTouch devices
- Clean up device names by unescaping mDNS characters
- Fix timeout flag handling to respect DISCOVERY_TIMEOUT from .env file
- Only override discovery timeout when --timeout flag is explicitly provided
- Add file operations safety guidelines to docs/CLAUDE.md
- Remove duplicate timeout flags from discover command, use global flags
Fixes IPv6 'no route to host' errors that prevented mDNS discovery.
Now discovers same devices as native dns-sd and dig tools.
- Change '// Output:' to '// Example output:' in all examples
- Examples will still appear in pkg.go.dev documentation
- Prevents examples from running as tests and trying to connect to real devices
- Examples are for documentation purposes, not runtime testing
- Fix GetInfo() to GetDeviceInfo() in client examples
- Update discovery examples to use proper constructor patterns
- Fix Volume.Muted to Volume.MuteEnabled field reference
- Correct DiscoveredDevice field names (remove non-existent MACAddress)
- Fix ZoneMember to use IP field instead of IPAddress
- Update Presets examples to use Preset slice and proper methods
- Replace non-existent SubscribeToEvents with NewWebSocketClient pattern
- Fix Capabilities to use Capability field instead of Sources
- Remove duplicate example function names
- Ensure all examples compile and use correct API surface
- Add root package documentation with quick start guide and feature overview
- Enhance client package with detailed usage examples and API coverage
- Add comprehensive discovery package documentation with protocol explanations
- Create models package documentation explaining all data structures
- Add extensive example functions for all major use cases:
* Basic device control and playback
* Volume, bass, and balance management
* Source selection and preset handling
* Multiroom zone management
* Real-time WebSocket event monitoring
* Device discovery with UPnP and mDNS
* Error handling and context cancellation
- Include code examples for pkg.go.dev's example rendering
- Document API endpoints, data structures, and best practices
- Add hardware compatibility and implementation notes
- Reference original API documentation source from Bose Corporation
- Link to official Bose SoundTouch End-of-Life page
- Clarify this is an independent implementation
- Add disclaimer about non-affiliation with Bose Corporation
- Provide both online and local documentation references
- Fix range copy issues in cmd_network.go (use indexing instead of copying 168-byte structs)
- Rename DiscoveryService to Service to avoid package name stuttering
- Update all references to use new Service constructor names
- Apply automatic whitespace fixes using golangci-lint --fix
- Reduce linting issues from 32 to 7 (only cyclomatic complexity remains)
Remaining issues are architectural complexity violations that require manual refactoring.
- Fixed nil pointer dereference warnings by using t.Fatal instead of t.Error
- In unified_test.go: Changed service nil check to use t.Fatal
- In clockdisplay_test.go: Changed request nil check to use t.Fatal
Using t.Fatal ensures test execution stops if pointer is nil,
eliminating possibility of subsequent nil pointer dereference.
Progress: Eliminated all 5 staticcheck issues
Total issues: 21 → 16 (24% improvement)
Remaining:
- gocyclo: 14 (complexity - requires refactoring)
- revive: 1 (DiscoveryService naming)
- unparam: 1 (client.post result parameter)
- Fix whitespace issues in test files (bass_test.go, client_test.go, source_selection_test.go)
- Fix whitespace issues in discovery/mdns.go
- Fix whitespace issues in config/config_test.go
- Fix whitespace issues in soundtouch-cli main.go ranges and loops
- Fix whitespace issues in models/websocket_test.go
Progress: Reduced wsl_v5 issues from 50 to 45 (10% improvement)
Total remaining: 79 issues (down from 84)
- Fix all errcheck issues by properly checking error return values
- Fix gocritic exitAfterDefer issues by replacing log.Fatalf with return statements
- Fix rangeValCopy issues by using index-based iteration for large structs
- Add missing package comments for all packages
- Fix unused parameter issues by renaming to underscore
- Fix empty block issues by adding explicit error handling
- Add documentation for exported methods and constants
- Fix shadow variable issues
- Replace deprecated strings.Title with manual implementation
- Fix defer function error handling
Reduced lint issues from 108 to 84 (22% improvement)
All critical error handling and code quality issues resolved
- Fix bodyclose issues by properly closing WebSocket response body
- Fix errcheck issues by checking errors on resp.Body.Close(), conn.Close(), etc.
- Fix errorlint issue by using errors.As() instead of type assertion
- Fix nilerr issue by adding proper logging for UPnP discovery failures
- Fix gocritic issues:
- Convert if-else chains to switch statements
- Fix parameter type combining (paramTypeCombine)
- Fix range value copying (rangeValCopy)
- Fix exitAfterDefer by calling cancel() before log.Fatalf()
- Add package comments to fix revive package-comments issues
- Rename ClientConfig to Config to avoid type name stuttering
- Add missing exported constant comments
- Fix unused parameter issues by renaming to _
- Fix empty block issues
- Add t.Helper() to test helper functions
- Update User-Agent and fix GetNetworkSummary behavior to match test expectations
Reduces linting issues from 151 to 108 (28% improvement).
All tests now pass.
Features Added:
• mDNS/Bonjour discovery using hashicorp/mdns library
• Unified discovery service combining UPnP + mDNS + configuration
• Parallel discovery execution for optimal performance
• Comprehensive logging for both UPnP and mDNS discovery
• Network diagnostic tools for troubleshooting
New Discovery Methods:
• Configuration-based (fastest, most reliable)
• UPnP/SSDP discovery (widely supported, enhanced logging)
• mDNS/Bonjour discovery (Apple ecosystem friendly)
New Programs & Tools:
• cmd/example-mdns - Standalone mDNS discovery testing
• cmd/example-upnp - Isolated UPnP/SSDP discovery testing
• cmd/mdns-scanner - Network diagnostic tool for mDNS services
Enhanced Build System:
• make dev-mdns / dev-mdns-verbose (mDNS testing)
• make dev-upnp / dev-upnp-verbose (UPnP testing)
• make dev-scan-all (scan all network services)
• make dev-scan-soundtouch (scan for SoundTouch services)
Documentation:
• docs/DISCOVERY.md - Comprehensive discovery guide
• Updated README.md with new features and commands
• Full API documentation and troubleshooting guide
Technical Improvements:
• Detailed request/response logging for UPnP M-SEARCH
• Step-by-step mDNS service discovery tracking
• IP address resolution with IPv4/IPv6 handling
• Service name parsing and device info extraction
• Robust error handling and network diagnostics
Backward Compatibility:
• No breaking changes to existing APIs
• All existing tests pass
• CLI interface unchanged but enhanced
• Legacy UPnP-only service still available
- Implement HTTP client with XML support for SoundTouch Web API
- Add UPnP device discovery with SSDP protocol
- Create type-safe Go models for API responses
- Build CLI tool with device discovery and info commands
- Add comprehensive configuration management via .env and env vars
- Include extensive documentation (API endpoints, patterns, development guide)
- Translate all German documentation to English
- Set up modern Go project structure with testing framework
- Add Makefile for cross-platform builds and development workflow
Features:
✅ Device discovery (UPnP + manual configuration)
✅ Device information retrieval
✅ XML request/response handling
✅ CLI interface with flexible device targeting
✅ Cross-platform compatibility
✅ Comprehensive test coverage with mock data
✅ Production-ready configuration management
Tobias Gesellchen