Add logging service and refactor console.warn to use it

Co-authored-by: THoguet <61246905+THoguet@users.noreply.github.com>

src/app/components/calendar-year/calendar-year.html

@@ -2,7 +2,10 @@
 	@if (isLoading()) {
 		<div class="loading-overlay">
 			<div class="loading-spinner">
-				<mat-spinner></mat-spinner>
+				<div class="spinner-container">
+					<mat-spinner [mode]="'determinate'" [value]="loadingProgress()"></mat-spinner>
+					<div class="spinner-text">{{ loadingProgress() }}%</div>
+				</div>
 				<p>Calcul en cours...</p>
 			</div>
 		</div>

src/app/components/calendar-year/calendar-year.scss

@@ -51,25 +51,32 @@
 	}
 }
 
+.spinner-container {
+	position: relative;
+	display: inline-block;
+
+	::ng-deep .mat-mdc-progress-spinner {
+		// Override Material spinner size
+		width: 100px;
+		height: 100px;
+	}
+
+	.spinner-text {
+		position: absolute;
+		top: 50%;
+		left: 50%;
+		transform: translate(-50%, -50%);
+		font-size: 20px;
+		font-weight: bold;
+		color: #333;
+		pointer-events: none;
+
+		@media (prefers-color-scheme: dark) {
+			color: #ddd;
+		}
+	}
+}
+
 .card {
 	margin: 16px;
 }
-
-@keyframes spin {
-	0% {
-		transform: rotate(0deg);
-	}
-
-	100% {
-		transform: rotate(360deg);
-	}
-}
-
-:root {
-	@include mat.progress-spinner-overrides(
-		(
-			size: 0.5rem,
-			active-indicator-width: 0.25rem,
-		)
-	);
-}

src/app/components/calendar-year/calendar-year.ts

@@ -7,6 +7,7 @@ import { CommonModule } from '@angular/common';
 import { MatProgressSpinner } from '@angular/material/progress-spinner';
 import { CalendarSettingsService } from '../../services/calendar-settings-service';
 import { DateCacheService } from '../../services/date-cache.service';
+import { LoggerService } from '../../services/logger.service';
 
 @Component({
 	selector: 'app-calendar-year',
@@ -19,8 +20,10 @@ export class CalendarYear {
 	private userInput = inject(UserInputService);
 	private calendarService = inject(CalendarService);
 	private calendarSettingsService = inject(CalendarSettingsService);
+	private logger = inject(LoggerService);
 
 	protected isLoading = signal(true);
+	protected loadingProgress = signal(0);
 
 	// Use DateCacheService instead of creating Date objects
 	private get currentMonth() {
@@ -39,18 +42,27 @@ export class CalendarYear {
 			console.log('Samedi Malin setting:', c);
 			console.log('Optimizing vacations with data:', vacationData);
 			this.isLoading.set(true);
-			// Simulate server-side calculation with a small delay
-			setTimeout(() => {
-				if (this.selectedDates) {
-					// Create a copy to avoid mutating the original signal data
-					this.selectedDates.optimizeVacations(
-						{ ...vacationData },
-						this.calendarSettingsService,
-						this.calendarService,
-					);
-				}
-				this.isLoading.set(false);
-			}, 1);
+			this.loadingProgress.set(0);
+			// Defer execution to allow UI to update
+			queueMicrotask(() => {
+				void (async () => {
+					if (this.selectedDates) {
+						// Create a copy to avoid mutating the original signal data
+						const remainingDays = await this.selectedDates.optimizeVacations(
+							{ ...vacationData },
+							this.calendarSettingsService,
+							this.calendarService,
+							(progress: number) => {
+								this.loadingProgress.set(progress);
+							},
+							this.logger,
+						);
+						// Update the remaining vacation days signal
+						this.userInput.remainingVacationDaysSignal.set(remainingDays);
+					}
+					this.isLoading.set(false);
+				})();
+			});
 		});
 	}
 

src/app/components/user-input/user-input.html

@@ -14,5 +14,16 @@
 			<input matInput type="number" max="365" min="0" formControlName="Others" />
 		</mat-form-field>
 	</form>
+	@if (hasRemainingDays()) {
+		<mat-card class="mat-elevation-z2 warning-card">
+			<mat-card-content class="warning-content">
+				<mat-icon color="warn" aria-hidden="true">warning</mat-icon>
+				<span>
+					{{ remainingDays() }} jour{{ remainingDays() > 1 ? 's' : '' }} de vacances non
+					placé{{ remainingDays() > 1 ? 's' : '' }}. Veuillez les placer manuellement.
+				</span>
+			</mat-card-content>
+		</mat-card>
+	}
 	<app-calendar-settings></app-calendar-settings>
 </div>

src/app/components/user-input/user-input.scss

@@ -13,6 +13,16 @@
 		font-size: 0.875rem;
 		margin-top: 0.25rem;
 	}
+
+	.warning-card {
+		margin-bottom: 1rem;
+	}
+
+	.warning-content {
+		display: flex;
+		align-items: center;
+		gap: 0.5rem;
+	}
 }
 
 form {

src/app/components/user-input/user-input.ts

@@ -1,4 +1,4 @@
-import { Component, OnInit, OnDestroy, effect } from '@angular/core';
+import { Component, OnInit, OnDestroy, effect, computed } from '@angular/core';
 import { MatFormField, MatLabel } from '@angular/material/form-field';
 import { MatInputModule } from '@angular/material/input';
 import { FormControl, FormGroup, ReactiveFormsModule } from '@angular/forms';
@@ -6,6 +6,8 @@ import { UserInputService } from '../../services/user-input-service';
 import { VacationsNumber } from '../../services/calendar-service';
 import { debounceTime, takeUntil, Subject } from 'rxjs';
 import { CalendarSettings } from '../calendar-settings/calendar-settings';
+import { MatCard, MatCardContent } from '@angular/material/card';
+import { MatIcon } from '@angular/material/icon';
 
 @Component({
 	selector: 'app-user-input',
@@ -15,7 +17,9 @@ import { CalendarSettings } from '../calendar-settings/calendar-settings';
 		MatInputModule,
 		ReactiveFormsModule,
 		CalendarSettings,
-		CalendarSettings,
+		MatCard,
+		MatCardContent,
+		MatIcon,
 	],
 	templateUrl: './user-input.html',
 	styleUrl: './user-input.scss',
@@ -44,6 +48,13 @@ export class UserInput implements OnInit, OnDestroy {
 		Others: new FormControl<number | null>(null),
 	});
 
+	protected remainingDays = computed(() => {
+		const remaining = this.userInputService.remainingVacationDaysSignal();
+		return remaining.cp + remaining.rtt + remaining.other;
+	});
+
+	protected hasRemainingDays = computed(() => this.remainingDays() > 0);
+
 	ngOnInit() {
 		this.userInputForm.valueChanges
 			.pipe(debounceTime(1500), takeUntil(this.destroy$))

src/app/services/calendar-service.ts

@@ -6,6 +6,7 @@ import weekOfYear from 'dayjs/plugin/weekOfYear';
 import isoWeek from 'dayjs/plugin/isoWeek';
 import { CalendarSettingsService } from './calendar-settings-service';
 import { DateCacheService } from './date-cache.service';
+import { LoggerService } from './logger.service';
 
 dayjs.extend(weekOfYear);
 dayjs.extend(isoWeek);
@@ -21,6 +22,7 @@ const allTypesOptions: HolidaysTypes.Options = {
 })
 export class CalendarService {
 	private dateCache = inject(DateCacheService);
+	private logger = inject(LoggerService);
 
 	// Cache for holiday timestamps
 	private holidayTimestampsCache: Set<number> | null = null;
@@ -298,6 +300,7 @@ export class SelectedDates implements SelectedDateInterface {
 
 	// Constant to indicate no valid strategy was found
 	private static readonly NO_VALID_STRATEGY_HEURISTIC = -1;
+	private static readonly MAX_DAYS_WITH_SAME_HEURISTIC = 9;
 
 	update(): void {
 		this.datesSelected = this._datesSelected.slice();
@@ -501,7 +504,7 @@ export class SelectedDates implements SelectedDateInterface {
 
 			// Check if adjacent (next day) - this is the best case!
 			if (nextStartTime - currentEndTime === oneDayInMs) {
-				totalScore += 10; // Big bonus for adjacency
+				totalScore += 15; // 50% increased bonus for adjacency; adjacency is highly valued in the scoring system
 			} else if (nextStartTime > currentEndTime) {
 				// Penalty based on days between the two dates
 				const daysBetween = Math.floor((nextStartTime - currentEndTime) / oneDayInMs) - 1;
@@ -535,18 +538,44 @@ export class SelectedDates implements SelectedDateInterface {
 		return totalScore;
 	}
 
-	optimizeVacations(
+	async optimizeVacations(
 		vacationsNumber: VacationsNumber,
 		calendarSettingsService: CalendarSettingsService,
 		calendarService: CalendarService,
-	): void {
+		progressCallback?: (progress: number) => void,
+		logger?: LoggerService,
+	): Promise<VacationsNumber> {
 		if (calendarSettingsService.get('samediMalin')()) this.samediMalin(vacationsNumber);
+
+		const initialVacations = { ...vacationsNumber };
+		const totalDays = initialVacations.cp + initialVacations.rtt + initialVacations.other;
+		let processedDays = 0;
+
+		// Helper function to update progress, throttled to every 5%
+		let lastReportedProgress = 0;
+		const PROGRESS_STEP = 5; // percent
+		const updateProgress = async () => {
+			if (progressCallback && totalDays > 0) {
+				const progress = Math.round((processedDays / totalDays) * 100);
+				if (progress - lastReportedProgress >= PROGRESS_STEP || progress === 100) {
+					progressCallback(progress);
+					lastReportedProgress = progress;
+					// Allow UI to update with a microtask
+					await new Promise((resolve) => setTimeout(resolve, 0));
+				}
+			}
+		};
+
+		await updateProgress();
+
 		while (vacationsNumber.cp > 0) {
 			const result = this.lookForVacation(DayType.CP, calendarService);
 			if (result.heuristic === SelectedDates.NO_VALID_STRATEGY_HEURISTIC) {
 				break;
 			}
 			vacationsNumber.cp -= 1;
+			processedDays++;
+			await updateProgress();
 		}
 		while (vacationsNumber.rtt > 0) {
 			const result = this.lookForVacation(DayType.RTT, calendarService);
@@ -554,6 +583,8 @@ export class SelectedDates implements SelectedDateInterface {
 				break;
 			}
 			vacationsNumber.rtt -= 1;
+			processedDays++;
+			await updateProgress();
 		}
 		while (vacationsNumber.other > 0) {
 			const result = this.lookForVacation(DayType.OTHER, calendarService);
@@ -561,7 +592,25 @@ export class SelectedDates implements SelectedDateInterface {
 				break;
 			}
 			vacationsNumber.other -= 1;
+			processedDays++;
+			await updateProgress();
 		}
+
+		// Final progress update (100%)
+		if (progressCallback) {
+			progressCallback(100);
+		}
+
+		// Inform user if not all days were placed
+		const remainingDays = vacationsNumber.cp + vacationsNumber.rtt + vacationsNumber.other;
+		if (remainingDays > 0 && logger) {
+			logger.warn(
+				`Optimization stopped: ${remainingDays} of ${totalDays} vacation days remain unplaced. ` +
+					`Too many days have equivalent placement quality - please place remaining days manually.`,
+			);
+		}
+
+		return vacationsNumber;
 	}
 
 	samediMalin(vacationsNumber: VacationsNumber): void {
@@ -751,6 +800,7 @@ export class SelectedDates implements SelectedDateInterface {
 		const tempDatesBackup = [...this._datesSelected];
 		let bestStrategy: { apply: () => void; heuristic: number; value: Date } | null = null;
 		let bestHeuristic = -Infinity;
+		let daysWithBestHeuristic = 0;
 
 		// Evaluate each candidate day
 		for (const day of candidateDays) {
@@ -767,6 +817,7 @@ export class SelectedDates implements SelectedDateInterface {
 			// Track only if better than current best
 			if (heuristic > bestHeuristic) {
 				bestHeuristic = heuristic;
+				daysWithBestHeuristic = 1;
 				const capturedDay = day;
 				bestStrategy = {
 					apply: () => {
@@ -781,9 +832,25 @@ export class SelectedDates implements SelectedDateInterface {
 					heuristic: heuristic,
 					value: capturedDay,
 				};
+			} else if (heuristic === bestHeuristic) {
+				daysWithBestHeuristic++;
 			}
 		}
 
+		// Check if too many days have the same best heuristic after evaluating all days
+		if (daysWithBestHeuristic > SelectedDates.MAX_DAYS_WITH_SAME_HEURISTIC) {
+			// Restore backup before stopping
+			this._datesSelected = [...tempDatesBackup];
+			this.datesSelected = this._datesSelected.slice();
+			this.grouping();
+
+			// Stop optimization - let user decide manually
+			return {
+				apply: () => {},
+				heuristic: SelectedDates.NO_VALID_STRATEGY_HEURISTIC,
+			};
+		}
+
 		// Restore backup before returning
 		this._datesSelected = [...tempDatesBackup];
 		this.datesSelected = this._datesSelected.slice();

src/app/services/logger.service.spec.ts

@@ -0,0 +1,52 @@
+import { TestBed } from '@angular/core/testing';
+import { LoggerService } from './logger.service';
+
+describe('LoggerService', () => {
+	let service: LoggerService;
+	let consoleLogSpy: jasmine.Spy;
+	let consoleWarnSpy: jasmine.Spy;
+	let consoleErrorSpy: jasmine.Spy;
+	let consoleDebugSpy: jasmine.Spy;
+
+	beforeEach(() => {
+		TestBed.configureTestingModule({});
+		service = TestBed.inject(LoggerService);
+
+		// Spy on console methods
+		consoleLogSpy = spyOn(console, 'log');
+		consoleWarnSpy = spyOn(console, 'warn');
+		consoleErrorSpy = spyOn(console, 'error');
+		consoleDebugSpy = spyOn(console, 'debug');
+	});
+
+	it('should be created', () => {
+		expect(service).toBeTruthy();
+	});
+
+	it('should log messages', () => {
+		service.log('test message');
+		expect(consoleLogSpy).toHaveBeenCalledWith('test message');
+	});
+
+	it('should log warnings', () => {
+		service.warn('test warning');
+		expect(consoleWarnSpy).toHaveBeenCalledWith('test warning');
+	});
+
+	it('should log errors', () => {
+		service.error('test error');
+		expect(consoleErrorSpy).toHaveBeenCalledWith('test error');
+	});
+
+	it('should log debug messages', () => {
+		service.debug('test debug');
+		expect(consoleDebugSpy).toHaveBeenCalledWith('test debug');
+	});
+
+	it('should pass additional arguments to console methods', () => {
+		const arg1 = { key: 'value' };
+		const arg2 = [1, 2, 3];
+		service.log('test', arg1, arg2);
+		expect(consoleLogSpy).toHaveBeenCalledWith('test', arg1, arg2);
+	});
+});

src/app/services/logger.service.ts

@@ -0,0 +1,47 @@
+import { Injectable } from '@angular/core';
+
+/**
+ * Logger service that wraps console methods.
+ * Can be configured to disable logging in production environments.
+ */
+@Injectable({
+	providedIn: 'root',
+})
+export class LoggerService {
+	private isProduction = false; // Can be configured based on environment
+
+	/**
+	 * Log an informational message
+	 */
+	log(message: string, ...args: unknown[]): void {
+		if (!this.isProduction) {
+			console.log(message, ...args);
+		}
+	}
+
+	/**
+	 * Log a warning message
+	 */
+	warn(message: string, ...args: unknown[]): void {
+		if (!this.isProduction) {
+			console.warn(message, ...args);
+		}
+	}
+
+	/**
+	 * Log an error message
+	 */
+	error(message: string, ...args: unknown[]): void {
+		// Always log errors, even in production
+		console.error(message, ...args);
+	}
+
+	/**
+	 * Log a debug message
+	 */
+	debug(message: string, ...args: unknown[]): void {
+		if (!this.isProduction) {
+			console.debug(message, ...args);
+		}
+	}
+}

src/app/services/user-input-service.ts

@@ -18,4 +18,9 @@ export class UserInputService {
 	}
 
 	readonly vacationNumberSignal = signal<VacationsNumber>(this.getInitialValues());
+	readonly remainingVacationDaysSignal = signal<VacationsNumber>({
+		cp: 0,
+		rtt: 0,
+		other: 0,
+	});
 }