kimai-plugin-heatmap/.planning/phases/06-renderer-architecture/06-01-SUMMARY.md

phase	plan	subsystem	tags	requires	provides	affects	tech-stack	key-files	key-decisions	patterns-established	requirements-completed	duration	completed
06-renderer-architecture	01	ui	typescript d3 strategy-pattern state-management	phase provides 01-05 (v1.0) heatmap.ts monolith with all rendering logic	ModeRenderer interface and RenderContext type contracts HeatmapState creation via createInitialState() Renderer registry (registerRenderer/getRenderer) Shared tooltip, color-scale, stats, date-utils modules	06-02 06-03 07-mode-renderers	added patterns strategy-pattern renderer registry state factory function shared utility extraction	created modified assets/src/state.ts assets/src/renderers/types.ts assets/src/renderers/registry.ts assets/src/shared/tooltip.ts assets/src/shared/color-scale.ts assets/src/shared/stats.ts assets/src/shared/date-utils.ts assets/test/state.test.ts assets/test/registry.test.ts assets/test/tooltip.test.ts assets/test/color-scale.test.ts assets/test/date-utils.test.ts assets/src/types.ts	clearRegistry() exported for test isolation of module-level Map Tooltip consolidated: createTooltip now appends to body and sets fixed positioning (was scattered inline in heatmap.ts) FALLBACK_COLORS used directly in color-scale, resolveColors() dropped (always returned same value)	Strategy pattern: ModeRenderer interface with mode string key, render(ctx), optional destroy() State factory: plain interface + createInitialState() function, no class Shared utilities: pure functions extracted to assets/src/shared/ with independent tests		2min	2026-04-09

Phase 6 Plan 01: Foundation Modules Summary

Strategy-pattern renderer contracts, state factory, registry, and 4 shared utility modules extracted from heatmap.ts monolith

Performance

• Duration: 2 min
• Started: 2026-04-09T07:31:40Z
• Completed: 2026-04-09T07:34:36Z
• Tasks: 2
• Files modified: 13

Accomplishments

• Created ModeRenderer/RenderContext type contracts for strategy-pattern rendering
• Built state module with HeatmapState interface and createInitialState() factory
• Built renderer registry with register/get/clear operations
• Extracted tooltip, color-scale, stats, and date-utils as standalone shared modules
• All 62 tests pass (20 new + 42 existing), esbuild still produces valid output

Task Commits

Each task was committed atomically:

1. Task 1: Create type contracts, state module, and renderer registry - fe24e8b (feat)
2. Task 2: Extract shared utilities from heatmap.ts - b9b2565 (feat)

Files Created/Modified

• assets/src/types.ts - Added DisplayMetric, HeatmapMode, FilterState types
• assets/src/state.ts - HeatmapState interface and createInitialState() factory
• assets/src/renderers/types.ts - ModeRenderer and RenderContext interfaces
• assets/src/renderers/registry.ts - Renderer registration and lookup with clearRegistry()
• assets/src/shared/tooltip.ts - Consolidated tooltip create/show/hide functions
• assets/src/shared/color-scale.ts - buildColorScale with DisplayMetric support
• assets/src/shared/stats.ts - calculateStreak, calculateStats, renderStats
• assets/src/shared/date-utils.ts - buildDateMap, generateCells, getWeekInterval, DayCell
• assets/test/state.test.ts - 2 tests for state factory
• assets/test/registry.test.ts - 3 tests for registry
• assets/test/tooltip.test.ts - 5 tests for tooltip lifecycle
• assets/test/color-scale.test.ts - 4 tests for color scale
• assets/test/date-utils.test.ts - 6 tests for date utilities

Decisions Made

• clearRegistry() exported from registry.ts for test isolation (module-level Map needs clearing between tests)
• Tooltip creation consolidated: new createTooltip() appends to body with fixed positioning (was scattered across multiple lines in heatmap.ts)
• resolveColors() dropped from color-scale module -- it always returned FALLBACK_COLORS

Deviations from Plan

None - plan executed exactly as written.

Issues Encountered

None.

User Setup Required

None - no external service configuration required.

Next Phase Readiness

• All building blocks ready for Plan 02 to wire heatmap.ts to use shared modules
• ModeRenderer interface ready for year-mode renderer implementation
• State and registry ready for mode switching logic

Self-Check: PASSED

• All 12 created files exist on disk
• Both task commits verified (fe24e8b, b9b2565)
• Full test suite: 62/62 passing
• esbuild: produces valid output

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Phase: 06-renderer-architecture Completed: 2026-04-09