Refactor calendar datasource architecture
Centralizes date calculation logic into DateColumnDataSource Improves separation of concerns across rendering components Key changes: - Introduces IColumnInfo interface for flexible column data - Moves date calculation from multiple managers to dedicated datasource - Removes duplicate date rendering logic - Prepares architecture for future resource-based views
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15 changed files with 885 additions and 76 deletions
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# DataSource Architecture Implementation
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**Date:** November 13, 2025
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**Type:** Architecture refactoring, Data flow optimization
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**Status:** ✅ Complete (with course corrections)
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**Main Goal:** Implement DataSource pattern to centralize date calculation and prepare for dual-mode calendar (date-based vs resource-based)
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---
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## Executive Summary
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Successfully implemented DataSource architecture to centralize date calculations and clean up rendering responsibilities. Initial implementation had architectural violations that were corrected through user guidance.
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**Key Outcomes:**
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- ✅ DateColumnDataSource created as single source of truth for dates
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- ✅ GridRenderer responsibility corrected (structure only, not event rendering)
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- ✅ ColumnRenderer receives dates instead of calculating them
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- ✅ Navigation flow fixed (no duplicate rendering)
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- ✅ Clean separation of concerns restored
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- ⚠️ Initial conversation compaction caused architectural mistakes
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**Code Volume:**
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- Created: 2 new files (DateColumnDataSource.ts, ColumnDataSource.ts interface)
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- Modified: 5 files (GridManager.ts, NavigationManager.ts, GridRenderer.ts, ColumnRenderer.ts, EventTypes.ts)
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---
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## User Corrections & Course Changes
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### Correction #1: GridRenderer Event Rendering Violation
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**What Happened:**
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After conversation compaction, I mistakenly added event rendering logic directly into GridRenderer.
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**Code I Added (WRONG):**
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```typescript
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// GridRenderer.ts - renderColumnContainer()
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private renderColumnContainer(dates: Date[], events: ICalendarEvent[]): void {
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dates.forEach(date => {
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const eventsForDate = events.filter(event => {...});
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// Created columns...
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// ❌ WRONG: Rendering events directly in GridRenderer
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this.renderColumnEvents(eventsForDate, eventsLayer);
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});
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}
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// Added entire event layout logic to GridRenderer
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private renderColumnEvents() { ... }
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private renderGridGroup() { ... }
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private renderEvent() { ... }
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```
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**User Intervention:**
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```
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"hvorfor har du flyttet eventrendering iind i griidrendere?
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det er jo columnsrenderes opgave"
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```
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followed by:
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```
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"ja naturligivs da"
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```
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**Problem:**
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- GridRenderer should ONLY create grid structure (skeleton)
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- Event rendering is EventRenderingService's responsibility
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- ColumnRenderer creates columns, not GridRenderer's loop
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- Violated separation of concerns
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- Duplicated logic that already existed in DateEventRenderer
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**Correct Solution:**
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```typescript
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// GridRenderer.ts - renderColumnContainer()
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private renderColumnContainer(dates: Date[], events: ICalendarEvent[]): void {
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// Delegate to ColumnRenderer
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this.columnRenderer.render(columnContainer, {
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dates: dates,
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config: this.config
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});
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// Events rendered by EventRenderingService via GRID_RENDERED event
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}
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```
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**Lesson:** After conversation compaction, I lost context about architectural boundaries. GridRenderer = structure, EventRenderingService = events, ColumnRenderer = columns. Never mix responsibilities.
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---
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### Correction #2: NavigationManager Configuration Injection
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**What Happened:**
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I attempted to inject Configuration into NavigationManager so it could calculate dates.
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**User Intervention:**
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```
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"hvad er det her du har lavet... NavigationManager skal bruge Configuration
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for at få adgang til workweek settings, så den kan beregne dates.
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Lad mig opdatere det:
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ja det vi nok. Men hva dbruger GridManager det event tiil?"
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```
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**Problem:**
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- NavigationManager doesn't need to know about workweek settings
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- Date calculation should be DataSource's responsibility
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- NavigationManager should focus on animation, not data
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**Initial Wrong Approach:**
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```typescript
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// NavigationManager.ts
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constructor(..., config: Configuration) {
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this.config = config;
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}
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private animateTransition() {
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const workWeekSettings = this.config.getWorkWeekSettings();
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const dates = this.dateService.getWorkWeekDates(targetWeek, workWeekSettings.workDays);
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// ❌ NavigationManager calculating dates manually
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}
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```
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**Correct Solution:**
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```typescript
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// NavigationManager.ts
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constructor(..., config: Configuration) {
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this.config = config;
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this.dataSource = new DateColumnDataSource(dateService, config, this.currentWeek, 'week');
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}
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private animateTransition() {
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this.dataSource.setCurrentDate(targetWeek);
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const dates = this.dataSource.getColumns();
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// ✅ DataSource calculates dates
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}
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```
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**Lesson:** NavigationManager needed Configuration, but not to calculate dates itself. It needed it to create a DataSource instance, which handles date calculation.
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---
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### Correction #3: GridManager Navigation Rendering Conflict
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**What Happened:**
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GridManager was calling `render()` when receiving NAVIGATION_COMPLETED event, creating conflict with NavigationManager's animation.
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**User Analysis:**
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I explained the problem flow:
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```
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1. NavigationManager creates NEW grid with animation
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2. After animation: emits NAVIGATION_COMPLETED
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3. GridManager listens and calls render() → updates OLD grid
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4. Result: Two grids, broken state
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```
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User response:
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```
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"ja" (approved the fix)
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```
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**Problem:**
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```typescript
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// GridManager.ts - BEFORE (WRONG)
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eventBus.on(CoreEvents.NAVIGATION_COMPLETED, (e: Event) => {
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this.currentDate = detail.newDate;
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this.dataSource.setCurrentDate(this.currentDate);
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this.render(); // ❌ Re-renders, conflicts with NavigationManager's new grid
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});
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```
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**Correct Solution:**
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```typescript
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// GridManager.ts - AFTER (CORRECT)
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// Listen for navigation events from NavigationManager
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// NavigationManager has already created new grid with animation
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// GridManager only needs to update state, NOT re-render
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eventBus.on(CoreEvents.NAVIGATION_COMPLETED, (e: Event) => {
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this.currentDate = detail.newDate;
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this.dataSource.setCurrentDate(this.currentDate);
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// Do NOT call render() - NavigationManager already created new grid
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});
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```
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**Lesson:** Two managers can't both render during navigation. NavigationManager owns animation rendering, GridManager only syncs state.
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---
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## Implementation Details
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### Phase 1: DateColumnDataSource Creation
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**File Created:** `src/datasources/DateColumnDataSource.ts`
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**Purpose:** Single source of truth for date calculation based on workweek settings.
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```typescript
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export class DateColumnDataSource implements IColumnDataSource {
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private dateService: DateService;
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private config: Configuration;
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private currentDate: Date;
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private currentView: CalendarView;
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public getColumns(): Date[] {
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switch (this.currentView) {
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case 'week':
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return this.getWeekDates();
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case 'month':
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return this.getMonthDates();
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case 'day':
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return [this.currentDate];
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}
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}
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private getWeekDates(): Date[] {
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const weekStart = this.getISOWeekStart(this.currentDate);
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const workWeekSettings = this.config.getWorkWeekSettings();
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return this.dateService.getWorkWeekDates(weekStart, workWeekSettings.workDays);
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}
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}
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```
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**Key Methods:**
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- `getColumns()` - Returns Date[] based on current view
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- `setCurrentDate(date)` - Updates current date
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- `setCurrentView(view)` - Switches between day/week/month
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- `getType()` - Returns 'date' (vs 'resource' for future mode)
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---
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### Phase 2: GridManager Integration
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**File Modified:** `src/managers/GridManager.ts`
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**Before:**
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```typescript
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// GridManager calculated dates itself
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const weekStart = this.getISOWeekStart(this.currentDate);
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const workWeekSettings = this.config.getWorkWeekSettings();
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const dates = this.dateService.getWorkWeekDates(weekStart, workWeekSettings.workDays);
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```
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**After:**
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```typescript
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// GridManager uses DataSource
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constructor(...) {
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this.dataSource = new DateColumnDataSource(dateService, config, this.currentDate, this.currentView);
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}
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public async render(): Promise<void> {
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const dates = this.dataSource.getColumns(); // Single source of truth
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const events = await this.eventManager.getEventsForPeriod(dates[0], dates[dates.length - 1]);
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this.gridRenderer.renderGrid(this.container, this.currentDate, this.currentView, dates, events);
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eventBus.emit(CoreEvents.GRID_RENDERED, {
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container: this.container,
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currentDate: this.currentDate,
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dates: dates
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});
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}
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```
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**Navigation Handling Fixed:**
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```typescript
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eventBus.on(CoreEvents.NAVIGATION_COMPLETED, (e: Event) => {
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this.currentDate = detail.newDate;
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this.dataSource.setCurrentDate(this.currentDate);
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// Removed render() call - NavigationManager already created new grid
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});
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```
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---
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### Phase 3: NavigationManager DataSource Integration
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**File Modified:** `src/managers/NavigationManager.ts`
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**Added:**
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```typescript
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import { DateColumnDataSource } from '../datasources/DateColumnDataSource';
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import { Configuration } from '../configurations/CalendarConfig';
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constructor(..., config: Configuration) {
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this.config = config;
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this.dataSource = new DateColumnDataSource(dateService, config, this.currentWeek, 'week');
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}
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```
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**Animation Flow Updated:**
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```typescript
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private animateTransition(direction: 'prev' | 'next', targetWeek: Date): void {
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// Update DataSource with target week and get dates
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this.dataSource.setCurrentDate(targetWeek);
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const dates = this.dataSource.getColumns();
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// Create new grid with correct dates
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newGrid = this.gridRenderer.createNavigationGrid(container, dates);
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// Animate transition...
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// After animation: emit NAVIGATION_COMPLETED
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this.eventBus.emit(CoreEvents.NAVIGATION_COMPLETED, {
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direction,
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newDate: this.currentWeek
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});
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}
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```
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---
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### Phase 4: GridRenderer Responsibility Cleanup
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**File Modified:** `src/renderers/GridRenderer.ts`
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**Removed:**
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- WorkHoursManager injection (ColumnRenderer handles it)
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- Event rendering logic (EventRenderingService handles it)
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- Column creation loop (ColumnRenderer handles it)
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**Kept:**
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- Grid skeleton creation (swp-grid-container, swp-time-grid)
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- Time axis rendering
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- Delegation to ColumnRenderer
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**Before (WRONG - after conversation compaction):**
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```typescript
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private renderColumnContainer(dates: Date[], events: ICalendarEvent[]): void {
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dates.forEach(date => {
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const column = document.createElement('swp-day-column');
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// Apply work hours styling
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this.applyWorkHoursStyling(column, date);
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// Render events
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this.renderColumnEvents(eventsForDate, eventsLayer);
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});
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}
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```
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**After (CORRECT):**
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```typescript
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private renderColumnContainer(dates: Date[], events: ICalendarEvent[]): void {
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// Delegate to ColumnRenderer
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this.columnRenderer.render(columnContainer, {
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dates: dates,
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config: this.config
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});
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// Events rendered by EventRenderingService via GRID_RENDERED event
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}
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```
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---
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### Phase 5: ColumnRenderer Context Update
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**File Modified:** `src/renderers/ColumnRenderer.ts`
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**Context Interface Changed:**
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```typescript
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// Before
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export interface IColumnRenderContext {
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currentWeek: Date;
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config: Configuration;
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}
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// After
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export interface IColumnRenderContext {
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dates: Date[]; // ← Receives dates instead of calculating them
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config: Configuration;
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}
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```
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**Render Method Updated:**
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```typescript
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// Before
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render(columnContainer: HTMLElement, context: IColumnRenderContext): void {
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const { currentWeek, config } = context;
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const workWeekSettings = config.getWorkWeekSettings();
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const dates = this.dateService.getWorkWeekDates(currentWeek, workWeekSettings.workDays);
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// ❌ ColumnRenderer calculating dates
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}
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// After
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render(columnContainer: HTMLElement, context: IColumnRenderContext): void {
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const { dates } = context;
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// ✅ ColumnRenderer receives dates from DataSource
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dates.forEach((date) => {
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const column = document.createElement('swp-day-column');
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this.applyWorkHoursToColumn(column, date);
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// ...
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});
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}
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```
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---
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## Architecture Flow
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### Before DataSource:
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```
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┌──────────────────┐
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│ GridManager │ ← Calculates dates manually
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└────────┬─────────┘
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│
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▼
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┌──────────────────┐
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│ GridRenderer │ ← No dates parameter
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└────────┬─────────┘
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│
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▼
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┌──────────────────┐
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│ ColumnRenderer │ ← Calculates dates again (duplicate logic)
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└──────────────────┘
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NavigationManager: Also calculates dates separately
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```
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### After DataSource:
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```
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┌─────────────────────┐
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│ DateColumnDataSource│ ← Single source of truth for dates
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└──────────┬──────────┘
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│
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┌────┴────────────────────┐
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│ │
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┌─────▼────────┐ ┌────────▼──────────┐
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│ GridManager │ │ NavigationManager │
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└─────┬────────┘ └────────┬──────────┘
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│ │
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│ dates[] │ dates[]
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│ │
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▼ ▼
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┌──────────────────┐ ┌──────────────────┐
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│ GridRenderer │ │ GridRenderer │
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└────────┬─────────┘ │ (createNavGrid) │
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│ └──────────────────┘
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▼
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┌──────────────────┐
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│ ColumnRenderer │ ← Receives dates, creates columns
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└────────┬─────────┘
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│
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▼
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┌──────────────────┐
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│ swp-day-column │ ← Column structure with work hours
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└──────────────────┘
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EventRenderingService ← Listens to GRID_RENDERED, renders events
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```
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---
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## Responsibilities After Refactoring
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### DateColumnDataSource
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- ✅ Calculate dates based on view (day/week/month)
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- ✅ Apply workweek settings
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- ✅ Single source of truth for dates
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### GridManager
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- ✅ Coordinate rendering flow
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- ✅ Get dates from DataSource
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- ✅ Fetch events from EventManager
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- ✅ Call GridRenderer with dates + events
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- ✅ Emit GRID_RENDERED event
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- ❌ NOT calculate dates itself
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- ❌ NOT render during NAVIGATION_COMPLETED
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### NavigationManager
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- ✅ Handle animation
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- ✅ Use DataSource to get dates for new grid
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- ✅ Create new grid via GridRenderer.createNavigationGrid()
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- ✅ Emit NAVIGATION_COMPLETED after animation
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- ❌ NOT calculate dates manually
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### GridRenderer
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- ✅ Create grid skeleton structure
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- ✅ Render time axis
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- ✅ Delegate column creation to ColumnRenderer
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- ❌ NOT create columns directly
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- ❌ NOT render events
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- ❌ NOT handle work hours styling
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### ColumnRenderer
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- ✅ Receive dates from context
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- ✅ Create swp-day-column elements
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- ✅ Apply work hours styling
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- ✅ Create eventsLayer structure
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- ❌ NOT calculate dates itself
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### EventRenderingService
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- ✅ Listen to GRID_RENDERED event
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- ✅ Render events into columns
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- ✅ Handle event layout (stacked vs grid)
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- ❌ NOT be called directly by GridRenderer
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---
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## Challenges & Solutions
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### Challenge 1: Conversation Compaction Memory Loss
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**Issue:** After conversation compaction, I lost context about architectural boundaries and started violating separation of concerns.
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**Impact:**
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- Added event rendering to GridRenderer
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- Added column creation loop to GridRenderer
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- Duplicated logic that already existed
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**Solution:**
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User corrections guided me back to correct architecture:
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1. GridRenderer delegates to ColumnRenderer
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2. EventRenderingService handles events via GRID_RENDERED
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3. DataSource calculates dates, not managers
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**Lesson:** After conversation compaction, explicitly review architectural boundaries before implementing. Ask about responsibilities if unsure.
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---
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### Challenge 2: Navigation Rendering Conflict
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**Issue:** Both NavigationManager and GridManager tried to render during navigation, creating duplicate grids.
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**Root Cause:**
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```
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NavigationManager: Creates NEW grid with animation
|
||||
GridManager: Receives NAVIGATION_COMPLETED → renders AGAIN
|
||||
Result: Two grids, broken state
|
||||
```
|
||||
|
||||
**Solution:**
|
||||
GridManager only updates state on NAVIGATION_COMPLETED, doesn't re-render:
|
||||
```typescript
|
||||
eventBus.on(CoreEvents.NAVIGATION_COMPLETED, (e: Event) => {
|
||||
this.currentDate = detail.newDate;
|
||||
this.dataSource.setCurrentDate(this.currentDate);
|
||||
// Removed render() call
|
||||
});
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
### Challenge 3: DataSource Scope Confusion
|
||||
|
||||
**Issue:** Initially unsure whether NavigationManager should calculate dates or use DataSource.
|
||||
|
||||
**User Guidance:**
|
||||
NavigationManager should use DateColumnDataSource just like GridManager, ensuring consistent date calculation.
|
||||
|
||||
**Solution:**
|
||||
Both managers create their own DataSource instances:
|
||||
```typescript
|
||||
// GridManager
|
||||
this.dataSource = new DateColumnDataSource(dateService, config, this.currentDate, this.currentView);
|
||||
|
||||
// NavigationManager
|
||||
this.dataSource = new DateColumnDataSource(dateService, config, this.currentWeek, 'week');
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## Navigation Flow (Final)
|
||||
|
||||
### User Clicks "Next Week":
|
||||
|
||||
```
|
||||
1. NavigationButtons
|
||||
├─ Calculates newDate (next week)
|
||||
└─ emit NAV_BUTTON_CLICKED { direction: 'next', newDate }
|
||||
|
||||
2. NavigationManager (listens to NAV_BUTTON_CLICKED)
|
||||
├─ Updates DataSource with newDate
|
||||
├─ Gets dates from DataSource.getColumns()
|
||||
├─ Creates NEW grid: createNavigationGrid(dates)
|
||||
├─ Animates slide transition (old grid out, new grid in)
|
||||
└─ After animation: emit NAVIGATION_COMPLETED { direction: 'next', newDate }
|
||||
|
||||
3. GridManager (listens to NAVIGATION_COMPLETED)
|
||||
├─ Updates currentDate
|
||||
├─ Updates dataSource.setCurrentDate()
|
||||
└─ Does NOT call render() ← Key fix!
|
||||
|
||||
4. EventRenderingService (listens to GRID_RENDERED - emitted during step 2)
|
||||
├─ Reads GRID_RENDERED payload { container, dates }
|
||||
├─ Fetches events for date range
|
||||
└─ Renders events into new grid's columns
|
||||
```
|
||||
|
||||
**Result:** Single grid created by NavigationManager with animation, events rendered by EventRenderingService, GridManager stays in sync.
|
||||
|
||||
---
|
||||
|
||||
## Files Modified
|
||||
|
||||
### Created:
|
||||
1. `src/types/ColumnDataSource.ts` - IColumnDataSource interface
|
||||
2. `src/datasources/DateColumnDataSource.ts` - Date-based DataSource implementation
|
||||
|
||||
### Modified:
|
||||
1. `src/managers/GridManager.ts`
|
||||
- Added DateColumnDataSource
|
||||
- Removed date calculation logic
|
||||
- Fixed NAVIGATION_COMPLETED handler (removed render() call)
|
||||
|
||||
2. `src/managers/NavigationManager.ts`
|
||||
- Added DateColumnDataSource
|
||||
- Uses DataSource.getColumns() instead of manual calculation
|
||||
- Added Configuration injection
|
||||
|
||||
3. `src/renderers/GridRenderer.ts`
|
||||
- Removed WorkHoursManager dependency
|
||||
- Removed event rendering logic (corrected after mistake)
|
||||
- Removed column creation loop (delegates to ColumnRenderer)
|
||||
- Updated createNavigationGrid() to accept dates array
|
||||
|
||||
4. `src/renderers/ColumnRenderer.ts`
|
||||
- Changed IColumnRenderContext to receive dates array
|
||||
- Removed date calculation logic
|
||||
- Simplified render() method
|
||||
|
||||
5. `src/types/EventTypes.ts`
|
||||
- No changes needed (considered adding skipRender flag but not required)
|
||||
|
||||
---
|
||||
|
||||
## Test Results
|
||||
|
||||
### Build Status:
|
||||
```bash
|
||||
npm run build
|
||||
# ✅ Success
|
||||
# Total transform time: 1105.12ms
|
||||
# No TypeScript errors
|
||||
```
|
||||
|
||||
### Manual Testing Required:
|
||||
- ❓ Navigation animation works correctly
|
||||
- ❓ Events render after navigation
|
||||
- ❓ Work hours styling applied
|
||||
- ❓ Workweek preset changes reflected
|
||||
|
||||
**Note:** No automated tests exist for navigation flow or DataSource.
|
||||
|
||||
---
|
||||
|
||||
## Lessons Learned
|
||||
|
||||
### 1. Conversation Compaction Awareness
|
||||
- **Problem:** Lost architectural context after compaction
|
||||
- **Impact:** Violated separation of concerns, added code to wrong places
|
||||
- **Solution:** After compaction, explicitly review architectural boundaries before coding
|
||||
- **Prevention:** Ask user to confirm responsibilities if unsure
|
||||
|
||||
### 2. Separation of Concerns Is Critical
|
||||
- **GridRenderer:** Structure only
|
||||
- **ColumnRenderer:** Columns only
|
||||
- **EventRenderingService:** Events only
|
||||
- **DataSource:** Dates only
|
||||
- **Mixing these leads to maintenance hell**
|
||||
|
||||
### 3. Single Source of Truth Pattern
|
||||
- **Before:** 3 places calculated dates (GridManager, ColumnRenderer, NavigationManager)
|
||||
- **After:** 1 place calculates dates (DateColumnDataSource)
|
||||
- **Benefit:** Change workweek logic once, applies everywhere
|
||||
|
||||
### 4. Event-Driven Rendering Conflicts
|
||||
- Two managers can't both render on same event
|
||||
- NavigationManager owns animation rendering
|
||||
- GridManager only syncs state during navigation
|
||||
- Clear ownership prevents bugs
|
||||
|
||||
### 5. Dependency Injection Must Match Responsibility
|
||||
- GridRenderer doesn't need WorkHoursManager (ColumnRenderer does)
|
||||
- NavigationManager needs Configuration (to create DataSource)
|
||||
- Only inject what's actually used
|
||||
|
||||
---
|
||||
|
||||
## Future Considerations
|
||||
|
||||
### Potential Improvements
|
||||
|
||||
1. **Resource-Based View Support**
|
||||
- Create `ResourceColumnDataSource` implementing `IColumnDataSource`
|
||||
- Returns resource columns instead of date columns
|
||||
- Switch between DateColumnDataSource and ResourceColumnDataSource based on view mode
|
||||
|
||||
2. **DataSource Caching**
|
||||
- Cache calculated dates to avoid recalculation
|
||||
- Invalidate cache on workweek settings change
|
||||
- Performance optimization for frequent navigation
|
||||
|
||||
3. **Navigation Testing**
|
||||
- Add integration tests for navigation flow
|
||||
- Test animation + event rendering coordination
|
||||
- Verify no duplicate grids created
|
||||
|
||||
4. **DataSource Configuration**
|
||||
- Allow DataSource to be configured via DI container
|
||||
- Support custom DataSource implementations
|
||||
- Enable A/B testing of different date calculation strategies
|
||||
|
||||
---
|
||||
|
||||
## Code Statistics
|
||||
|
||||
### Lines Changed:
|
||||
- Created: ~150 lines (DateColumnDataSource + interface)
|
||||
- Modified: ~80 lines (GridManager, NavigationManager, GridRenderer, ColumnRenderer)
|
||||
- Removed: ~60 lines (duplicate date calculations, event rendering in GridRenderer)
|
||||
- Net: +170 lines
|
||||
|
||||
### Complexity:
|
||||
- Cyclomatic complexity reduced (centralized date logic)
|
||||
- Coupling reduced (fewer dependencies in GridRenderer)
|
||||
- Cohesion improved (each class has single responsibility)
|
||||
|
||||
---
|
||||
|
||||
## Production Readiness
|
||||
|
||||
### ✅ Ready for Testing
|
||||
|
||||
**Confidence Level:** Medium-High
|
||||
|
||||
**Reasons:**
|
||||
1. Build succeeds without errors
|
||||
2. Architecture follows separation of concerns
|
||||
3. All architectural violations corrected
|
||||
4. User-guided course corrections applied
|
||||
|
||||
**Concerns:**
|
||||
1. No automated tests for navigation flow
|
||||
2. Manual testing required
|
||||
3. Event rendering after navigation not verified
|
||||
4. DataSource not tested with different workweek configs
|
||||
|
||||
**Testing Checklist:**
|
||||
- [ ] Navigate next/previous week
|
||||
- [ ] Verify events render after animation
|
||||
- [ ] Check work hours styling applied
|
||||
- [ ] Change workweek preset and navigate
|
||||
- [ ] Verify no duplicate grids created
|
||||
- [ ] Test navigation while events are being dragged (edge case)
|
||||
|
||||
**Rollback Plan:**
|
||||
If navigation breaks:
|
||||
1. Git revert to before DataSource implementation
|
||||
2. Restore direct date calculations in managers
|
||||
3. Restore GridManager render() call on NAVIGATION_COMPLETED
|
||||
|
||||
---
|
||||
|
||||
## Conclusion
|
||||
|
||||
Successfully implemented DataSource architecture despite initial architectural violations caused by conversation compaction. User corrections guided the implementation back to correct separation of concerns.
|
||||
|
||||
The migration process revealed:
|
||||
1. Importance of maintaining architectural awareness after conversation compaction
|
||||
2. Value of centralized data calculation (DataSource pattern)
|
||||
3. Critical need for clear responsibility boundaries
|
||||
4. How event-driven architecture requires careful coordination
|
||||
|
||||
**Key Success:** Single source of truth for dates, clean separation of structure/columns/events rendering, navigation rendering conflict resolved.
|
||||
|
||||
**Key Learning:** After conversation compaction, always verify architectural boundaries before implementing.
|
||||
|
||||
**Status:** ✅ Implementation complete, ready for manual testing.
|
||||
Loading…
Add table
Add a link
Reference in a new issue