Codewalkers/.planning/phases/01.1-hexagonal-architecture/01.1-04-SUMMARY.md

phase, plan, subsystem, tags, requires, provides, affects, tech-stack, key-files, key-decisions, patterns-established, duration, completed

phase	plan	subsystem	tags	requires	provides	affects	tech-stack	key-files	key-decisions	patterns-established	duration	completed
01.1-hexagonal-architecture	04	logging	vitest events logging file-io eventbus	phase provides 01.1-01 EventBus port interface, LogEntryEvent type	Comprehensive LogManager test coverage Comprehensive ProcessLogWriter test coverage Event emission for log entries (stdout/stderr) Real-time log streaming capability via EventBus	01.1-05 01.1-06 07-FSUI	added patterns event-driven-logging optional-dependency-injection	created modified src/logging/manager.test.ts src/logging/writer.test.ts src/logging/writer.ts src/logging/index.ts	EventBus is optional parameter for backwards compatibility Events emitted after file write completes for consistency Buffer data converted to string for event payload	Optional EventBus injection pattern for modules Log streaming via log:entry events	4min	2026-01-30

Phase 1.1 Plan 04: Logging Module Tests + Events Summary

Comprehensive test coverage for LogManager and ProcessLogWriter with optional EventBus integration for real-time log streaming

Performance

• Duration: 4 min
• Started: 2026-01-30T14:00:00Z
• Completed: 2026-01-30T14:04:00Z
• Tasks: 2
• Files modified: 4

Accomplishments

• 35 unit tests for LogManager covering directory operations, path resolution, log listing, and retention cleanup
• 24 unit tests for ProcessLogWriter covering file operations, timestamps, append mode, and event emission
• ProcessLogWriter accepts optional EventBus and emits log:entry events
• createLogger convenience function updated to support EventBus parameter
• Backwards compatible - eventBus parameter is optional

Task Commits

Each task was committed atomically:

1. Task 1: Write unit tests for LogManager and ProcessLogWriter - 17f4e61 (test)
2. Task 2: Add event emission to ProcessLogWriter - bac133d (feat)

Files Created/Modified

• src/logging/manager.test.ts - 17 tests for LogManager (directory creation, path resolution, log listing, cleanup)
• src/logging/writer.test.ts - 24 tests for ProcessLogWriter (file ops, timestamps, events, compatibility)
• src/logging/writer.ts - Added optional EventBus parameter, emits log:entry events on write
• src/logging/index.ts - Updated createLogger to accept optional EventBus

Decisions Made

1. Optional EventBus parameter - Maintains backwards compatibility while enabling event emission
2. Events emitted after file write - Ensures file is written before event is emitted for consistency
3. Buffer converted to string for events - Event payload uses string for easier consumption by UI/subscribers

Deviations from Plan

None - plan executed exactly as written.

Issues Encountered

None

User Setup Required

None - no external service configuration required.

Next Phase Readiness

• Logging module fully tested with 41 tests total
• LogEntry events flow through event bus for real-time streaming
• Ready for Phase 7 (FSUI) which will consume log events
• Ready for 01.1-05: Server Module Tests + Events

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Phase: 01.1-hexagonal-architecture Completed: 2026-01-30