Bump docker/build-push-action from 6 to 7

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 6 to 7.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](https://github.com/docker/build-push-action/compare/v6...v7)

---
updated-dependencies:
- dependency-name: docker/build-push-action
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/codeql.yml

@@ -24,18 +24,18 @@ jobs:
 
         steps:
             - name: Checkout repository
-              uses: actions/checkout@v4
+              uses: actions/checkout@v6
 
             - name: Initialize CodeQL
-              uses: github/codeql-action/init@v3
+              uses: github/codeql-action/init@v4
               with:
                   languages: ${{ matrix.language }}
                   queries: security-extended,security-and-quality
 
             - name: Autobuild
-              uses: github/codeql-action/autobuild@v3
+              uses: github/codeql-action/autobuild@v4
 
             - name: Perform CodeQL Analysis
-              uses: github/codeql-action/analyze@v3
+              uses: github/codeql-action/analyze@v4
               with:
                   category: '/language:${{matrix.language}}'

.github/workflows/dependabot-auto-merge.yml

@@ -0,0 +1,28 @@
+name: Dependabot Auto-merge
+
+on:
+    pull_request:
+        branches: [main]
+
+permissions:
+    contents: write
+    pull-requests: write
+
+jobs:
+    auto-merge:
+        name: Auto-merge Dependabot minor and patch updates
+        runs-on: ubuntu-latest
+        if: github.actor == 'dependabot[bot]'
+        steps:
+            - name: Fetch Dependabot metadata
+              id: metadata
+              uses: dependabot/fetch-metadata@v2.5.0
+
+            - name: Auto-merge minor and patch updates
+              if: |
+                  steps.metadata.outputs.update-type == 'version-update:semver-minor' ||
+                  steps.metadata.outputs.update-type == 'version-update:semver-patch'
+              run: gh pr merge --auto --squash "$PR_URL"
+              env:
+                  PR_URL: ${{ github.event.pull_request.html_url }}
+                  GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/docker-build-push.yml

@@ -16,7 +16,7 @@ jobs:
             security-events: write
 
         steps:
-            - uses: actions/checkout@v4
+            - uses: actions/checkout@v6
 
             - name: Set up Docker Buildx
               uses: docker/setup-buildx-action@v3
@@ -41,7 +41,8 @@ jobs:
                       type=raw,value=latest,enable={{is_default_branch}}
 
             - name: Build and push
-              uses: docker/build-push-action@v6
+              id: build
+              uses: docker/build-push-action@v7
               with:
                   context: .
                   push: true
@@ -51,14 +52,14 @@ jobs:
                   cache-to: type=gha,mode=max
 
             - name: Run Trivy vulnerability scanner
-              uses: aquasecurity/trivy-action@0.27.0
+              uses: aquasecurity/trivy-action@0.35.0
               with:
-                  image-ref: ghcr.io/${{ github.repository }}:sha-${{ github.sha }}
+                  image-ref: ghcr.io/thoguet/vac-optimizer@${{ steps.build.outputs.digest }}
                   format: 'sarif'
                   output: 'trivy-results.sarif'
 
             - name: Upload Trivy results to GitHub Security tab
-              uses: github/codeql-action/upload-sarif@v3
+              uses: github/codeql-action/upload-sarif@v4
               if: always()
               with:
                   sarif_file: 'trivy-results.sarif'

.github/workflows/pr-validation.yml

@@ -11,16 +11,16 @@ jobs:
         name: Lint Check
         runs-on: ubuntu-latest
         steps:
-            - uses: actions/checkout@v4
+            - uses: actions/checkout@v6
 
             - name: Setup Node.js
-              uses: actions/setup-node@v4
+              uses: actions/setup-node@v6
               with:
                   node-version: '20'
                   cache: 'npm'
 
             - name: Install dependencies
-              run: npm ci
+              run: npm ci --legacy-peer-deps
 
             - name: Check code formatting with Prettier
               run: npx prettier --check "src/**/*.{ts,html,scss,css,json}"
@@ -32,16 +32,16 @@ jobs:
         name: TypeScript Type Check
         runs-on: ubuntu-latest
         steps:
-            - uses: actions/checkout@v4
+            - uses: actions/checkout@v6
 
             - name: Setup Node.js
-              uses: actions/setup-node@v4
+              uses: actions/setup-node@v6
               with:
                   node-version: '20'
                   cache: 'npm'
 
             - name: Install dependencies
-              run: npm ci
+              run: npm ci --legacy-peer-deps
 
             - name: Run TypeScript compiler
               run: npx tsc --noEmit
@@ -50,22 +50,22 @@ jobs:
         name: Unit Tests
         runs-on: ubuntu-latest
         steps:
-            - uses: actions/checkout@v4
+            - uses: actions/checkout@v6
 
             - name: Setup Node.js
-              uses: actions/setup-node@v4
+              uses: actions/setup-node@v6
               with:
                   node-version: '20'
                   cache: 'npm'
 
             - name: Install dependencies
-              run: npm ci
+              run: npm ci --legacy-peer-deps
 
             - name: Run unit tests
               run: npm test -- --watch=false --browsers=ChromeHeadless --code-coverage
 
             - name: Upload coverage reports
-              uses: codecov/codecov-action@v4
+              uses: codecov/codecov-action@v5
               if: always()
               with:
                   token: ${{ secrets.CODECOV_TOKEN }}
@@ -76,16 +76,16 @@ jobs:
         name: Build Application
         runs-on: ubuntu-latest
         steps:
-            - uses: actions/checkout@v4
+            - uses: actions/checkout@v6
 
             - name: Setup Node.js
-              uses: actions/setup-node@v4
+              uses: actions/setup-node@v6
               with:
                   node-version: '20'
                   cache: 'npm'
 
             - name: Install dependencies
-              run: npm ci
+              run: npm ci --legacy-peer-deps
 
             - name: Build production bundle
               run: npm run build -- --configuration production
@@ -98,7 +98,7 @@ jobs:
                   echo "Build completed successfully"
 
             - name: Upload build artifacts
-              uses: actions/upload-artifact@v4
+              uses: actions/upload-artifact@v6
               with:
                   name: build-artifacts
                   path: dist/

Dockerfile

@@ -1,5 +1,5 @@
 # Stage 1: Build the Angular application
-FROM node:20-alpine AS builder
+FROM node:25-alpine AS builder
 
 # Set working directory
 WORKDIR /app
@@ -17,7 +17,7 @@ COPY . .
 RUN npm run build
 
 # Stage 2: Production image
-FROM node:20-alpine AS production
+FROM node:25-alpine AS production
 
 # Set working directory
 WORKDIR /app

eslint.config.mjs

@@ -4,31 +4,31 @@ import prettier from 'eslint-config-prettier';
 import prettierPlugin from 'eslint-plugin-prettier';
 
 export default [
-    eslintJs.configs.recommended,
-    ...tseslint.configs.recommended,
-    prettier,
-    {
-        files: ['**/*.ts'],
-        plugins: {
-            prettier: prettierPlugin,
-        },
-        languageOptions: {
-            parserOptions: {
-                projectService: true,
-                tsconfigRootDir: import.meta.dirname,
-            },
-        },
-        rules: {
-            'prettier/prettier': 'error',
-            '@typescript-eslint/no-explicit-any': 'warn',
-            '@typescript-eslint/explicit-function-return-type': 'off',
-            '@typescript-eslint/no-unused-vars': [
-                'error',
-                { argsIgnorePattern: '^_', varsIgnorePattern: '^_' },
-            ],
-        },
-    },
-    {
-        ignores: ['dist/**', 'node_modules/**', '.angular/**', 'coverage/**'],
-    },
+	eslintJs.configs.recommended,
+	...tseslint.configs.recommended,
+	prettier,
+	{
+		files: ['**/*.ts'],
+		plugins: {
+			prettier: prettierPlugin,
+		},
+		languageOptions: {
+			parserOptions: {
+				projectService: true,
+				tsconfigRootDir: import.meta.dirname,
+			},
+		},
+		rules: {
+			'prettier/prettier': 'error',
+			'@typescript-eslint/no-explicit-any': 'warn',
+			'@typescript-eslint/explicit-function-return-type': 'off',
+			'@typescript-eslint/no-unused-vars': [
+				'error',
+				{ argsIgnorePattern: '^_', varsIgnorePattern: '^_' },
+			],
+		},
+	},
+	{
+		ignores: ['dist/**', 'node_modules/**', '.angular/**', 'coverage/**'],
+	},
 ];

package.json

@@ -27,44 +27,45 @@
 	},
 	"private": true,
 	"dependencies": {
-		"@angular/cdk": "^20.2.10",
-		"@angular/common": "^20.3.0",
-		"@angular/compiler": "^20.3.0",
-		"@angular/core": "^20.3.7",
-		"@angular/forms": "^20.3.0",
-		"@angular/material": "^20.2.10",
-		"@angular/platform-browser": "^20.3.0",
-		"@angular/platform-server": "^20.3.0",
-		"@angular/router": "^20.3.0",
-		"@angular/ssr": "^20.3.7",
-		"date-holidays": "^3.26.2",
+		"@angular/animations": "21.2.2",
+		"@angular/cdk": "^21.2.1",
+		"@angular/common": "21.2.2",
+		"@angular/compiler": "21.2.4",
+		"@angular/core": "21.2.2",
+		"@angular/forms": "21.2.2",
+		"@angular/material": "^21.2.1",
+		"@angular/platform-browser": "21.2.2",
+		"@angular/platform-server": "21.2.2",
+		"@angular/router": "21.2.2",
+		"@angular/ssr": "21.2.1",
+		"date-holidays": "^3.26.9",
 		"dayjs": "^1.11.19",
-		"express": "^5.1.0",
-		"rxjs": "~7.8.0",
-		"tslib": "^2.3.0"
+		"express": "^5.2.1",
+		"rxjs": "~7.8.2",
+		"tslib": "^2.8.1"
 	},
 	"devDependencies": {
-		"@angular/build": "^20.3.7",
-		"@angular/cli": "^20.3.7",
-		"@angular/compiler-cli": "^20.3.0",
-		"@eslint/js": "^9.17.0",
-		"@types/express": "^5.0.1",
-		"@types/jasmine": "~5.1.0",
+		"@angular/build": "21.2.1",
+		"@angular/cli": "21.2.1",
+		"@angular/compiler-cli": "21.2.2",
+		"@eslint/js": "^10.0.1",
+		"@types/express": "^5.0.6",
+		"@types/jasmine": "~6.0.0",
 		"@types/jest": "^30.0.0",
-		"@types/node": "^20.17.19",
-		"eslint": "^9.38.0",
+		"@types/node": "^25.4.0",
+		"eslint": "^10.0.3",
 		"eslint-config-prettier": "^10.1.8",
-		"eslint-plugin-prettier": "^5.5.4",
-		"jasmine-core": "~5.9.0",
+		"eslint-plugin-prettier": "^5.5.5",
+		"jasmine-core": "~6.1.0",
 		"jest": "^30.2.0",
-		"jest-preset-angular": "^15.0.3",
-		"karma": "~6.4.0",
+		"jest-preset-angular": "^16.1.1",
+		"karma": "~6.4.4",
 		"karma-chrome-launcher": "~3.2.0",
-		"karma-coverage": "~2.2.0",
+		"karma-coverage": "~2.2.1",
 		"karma-jasmine": "~5.1.0",
-		"karma-jasmine-html-reporter": "~2.1.0",
-		"prettier": "^3.6.2",
-		"typescript": "~5.9.2",
-		"typescript-eslint": "^8.19.1"
+		"karma-jasmine-html-reporter": "~2.2.0",
+		"prettier": "^3.8.1",
+		"typescript": "~5.9.3",
+		"typescript-eslint": "^8.57.0"
 	}
 }

src/app/app.config.ts

@@ -11,6 +11,7 @@ import {
 	withEventReplay,
 	withIncrementalHydration,
 } from '@angular/platform-browser';
+import { provideAnimationsAsync } from '@angular/platform-browser/animations/async';
 
 export const appConfig: ApplicationConfig = {
 	providers: [
@@ -18,5 +19,6 @@ export const appConfig: ApplicationConfig = {
 		provideZonelessChangeDetection(),
 		provideRouter(routes),
 		provideClientHydration(withEventReplay(), withIncrementalHydration()),
+		provideAnimationsAsync(),
 	],
 };

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

@@ -2,7 +2,7 @@
 	<h3>{{ getMonthName() }} {{ year }}</h3>
 	<div>
 		<div class="row header">
-			@if (calendarSettingsService.showWeekNumbers()) {
+			@if (calendarSettingsService.get('showWeekNumbers')()) {
 				<p class="day empty week-number"></p>
 			}
 			<p class="day">L</p>
@@ -16,7 +16,7 @@
 		<div class="cols">
 			@for (week of weeksInAMonth; track $index) {
 				<div class="row week">
-					@if (calendarSettingsService.showWeekNumbers()) {
+					@if (calendarSettingsService.get('showWeekNumbers')()) {
 						<p
 							class="day week-number"
 							[class.start]="$index === 0"
@@ -38,7 +38,6 @@
 								class="day number"
 								[matTooltip]="selectedDates.getTooltip(day)"
 								[matTooltipShowDelay]="500"
-								[matTooltipTouchGestures]="'on'"
 							>
 								{{ day.getDate() }}
 							</p>

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

@@ -1,16 +1,16 @@
-import { Component, effect, signal, inject } from '@angular/core';
+import { Component, effect, signal, inject, untracked } from '@angular/core';
 import { UserInputService } from '../../services/user-input-service';
 import { MatCard, MatCardContent } from '@angular/material/card';
 import { CalendarMonth } from '../calendar-month/calendar-month';
 import { CalendarService, SelectedDates } from '../../services/calendar-service';
-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';
 
 @Component({
 	selector: 'app-calendar-year',
-	imports: [MatCard, CalendarMonth, MatCardContent, CommonModule, MatProgressSpinner],
+	imports: [MatCard, CalendarMonth, MatCardContent, MatProgressSpinner],
 	templateUrl: './calendar-year.html',
 	styleUrl: './calendar-year.scss',
 })
@@ -21,6 +21,7 @@ export class CalendarYear {
 	private calendarSettingsService = inject(CalendarSettingsService);
 
 	protected isLoading = signal(true);
+	protected loadingProgress = signal(0);
 
 	// Use DateCacheService instead of creating Date objects
 	private get currentMonth() {
@@ -33,24 +34,35 @@ export class CalendarYear {
 
 	constructor() {
 		effect(() => {
+			this.userInput.computeTriggerSignal();
+
 			this.selectedDates = this.calendarService.getSelectedDatesForYear();
-			const vacationData = this.userInput.vacationNumberSignal();
-			const c = this.calendarSettingsService.samediMalin();
+			const vacationData = untracked(() => this.userInput.vacationNumberSignal());
+			const c = untracked(() => this.calendarSettingsService.get('samediMalin')());
 			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 deep copy to avoid mutating the original signal data
+						const vacationDaysCopy = vacationData.map((vd) => ({ ...vd }));
+						const remainingDays = await this.selectedDates.optimizeVacations(
+							vacationDaysCopy,
+							this.calendarSettingsService,
+							this.calendarService,
+							(progress: number) => {
+								this.loadingProgress.set(progress);
+							},
+						);
+						// Update the remaining vacation days signal
+						this.userInput.remainingVacationDaysSignal.set(remainingDays);
+					}
+					this.isLoading.set(false);
+				})();
+			});
 		});
 	}
 

src/app/components/dialog/calendar-settings-dialog/calendar-settings-dialog.html

@@ -4,26 +4,18 @@
 		<p>Configure your calendar settings here.</p>
 	</div>
 	<div style="display: flex; flex-direction: column; gap: 1rem">
-		<div style="align-self: flex-start">
-			<mat-slide-toggle
-				id="showWeekNumbers"
-				name="showWeekNumbers"
-				[checked]="calendarSettingsService.showWeekNumbers()"
-				(change)="calendarSettingsService.showWeekNumbers.set($event.checked)"
-			>
-				Afficher les numéros de semaine
-			</mat-slide-toggle>
-		</div>
-		<div style="align-self: flex-start">
-			<mat-slide-toggle
-				id="samediMalin"
-				name="samediMalin"
-				[checked]="calendarSettingsService.samediMalin()"
-				(change)="calendarSettingsService.samediMalin.set($event.checked)"
-			>
-				Activer le Samedi Malin
-			</mat-slide-toggle>
-		</div>
+		@for (setting of calendarSettingsService.settingsArray; track setting.id) {
+			<div style="align-self: flex-start">
+				<mat-slide-toggle
+					[id]="setting.id"
+					[name]="setting.id"
+					[checked]="setting.signal()"
+					(change)="setting.signal.set($event.checked)"
+				>
+					{{ setting.description }}
+				</mat-slide-toggle>
+			</div>
+		}
 	</div>
 	<button mat-button (click)="closeDialog()">Fermer</button>
 </div>

src/app/components/dialog/calendar-settings-dialog/calendar-settings-dialog.ts

@@ -1,4 +1,4 @@
-import { Component } from '@angular/core';
+import { Component, inject } from '@angular/core';
 import { MatButton } from '@angular/material/button';
 import { MatDialogRef } from '@angular/material/dialog';
 import { CalendarSettingsService } from '../../../services/calendar-settings-service';
@@ -11,10 +11,8 @@ import { MatSlideToggle } from '@angular/material/slide-toggle';
 	styleUrl: './calendar-settings-dialog.scss',
 })
 export class CalendarSettingsDialog {
-	constructor(
-		public dialogRef: MatDialogRef<CalendarSettingsDialog>,
-		protected calendarSettingsService: CalendarSettingsService,
-	) {}
+	public readonly dialogRef = inject<MatDialogRef<CalendarSettingsDialog>>(MatDialogRef);
+	protected readonly calendarSettingsService = inject(CalendarSettingsService);
 
 	closeDialog() {
 		this.dialogRef.close();

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

@@ -1,18 +1,44 @@
 <div class="user-input">
 	<p>Optimisez vos jours de vacances en fonction des jours fériés et des week-ends !</p>
-	<form [formGroup]="userInputForm">
-		<mat-form-field appearance="fill">
-			<mat-label>Combien de CP par an ?</mat-label>
-			<input matInput type="number" max="365" min="0" formControlName="CP" />
-		</mat-form-field>
-		<mat-form-field appearance="fill">
-			<mat-label>Combien de jours de RTT par an ?</mat-label>
-			<input matInput type="number" max="365" min="0" formControlName="RTT" />
-		</mat-form-field>
-		<mat-form-field appearance="fill">
-			<mat-label>Autres jours</mat-label>
-			<input matInput type="number" max="365" min="0" formControlName="Others" />
-		</mat-form-field>
-	</form>
-	<app-calendar-settings></app-calendar-settings>
+	<div class="listOfDays">
+		@for (day of daysOff; track day.id) {
+			<div class="day-input-wrapper" animate.enter="day-enter" animate.leave="day-leave">
+				<app-day-input
+					[day]="day"
+					(dayChange)="updateDay($index, $event)"
+					(deleteEntry)="removeFromList($index)"
+				></app-day-input>
+			</div>
+		}
+		<mat-card class="add-day-card mat-elevation-z2" (click)="addDay()">
+			<button matFab aria-label="Add entry">
+				<mat-icon>add</mat-icon>
+			</button>
+			<h3>Ajouter un jour de vacances</h3>
+		</mat-card>
+	</div>
+	<div class="action-buttons">
+		<button matFab extended (click)="triggerComputation()">
+			<mat-icon>calculate</mat-icon>
+			Calculer
+		</button>
+		<app-calendar-settings></app-calendar-settings>
+	</div>
+	@if (hasRemainingDays()) {
+		<mat-card class="mat-elevation-z2 warning-card">
+			<mat-card-content class="warning-content">
+				<mat-icon color="warn">warning</mat-icon>
+				<div class="warning">
+					<span>
+						{{ remainingDays() }} jour{{ remainingDays() > 1 ? 's' : '' }} de vacances
+						non placé{{ remainingDays() > 1 ? 's' : '' }}:
+					</span>
+					@for (day of remainingDaysDetails(); track $index) {
+						<span class="remaining-day-detail">- {{ day }}</span>
+					}
+					<span> Veuillez les placer manuellement. </span>
+				</div>
+			</mat-card-content>
+		</mat-card>
+	}
 </div>

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

@@ -13,9 +13,91 @@
 		font-size: 0.875rem;
 		margin-top: 0.25rem;
 	}
+
+	.warning-card {
+		margin-bottom: 1rem;
+	}
+
+	.warning-content {
+		display: flex;
+		align-items: center;
+		gap: 0.5rem;
+	}
+}
+
+.listOfDays {
+	display: flex;
+	flex-direction: column;
+	gap: 0.5rem;
+}
+
+.day-input-wrapper {
+	animation: slide-fade-in 200ms ease-out;
+
+	@starting-style {
+		opacity: 0;
+		transform: translateX(-20px);
+	}
+}
+
+.day-enter {
+	animation: slide-fade-in 200ms ease-out;
+}
+
+.day-leave {
+	opacity: 0;
+	transform: translateX(20px);
+	transition:
+		opacity 200ms ease-in,
+		transform 200ms ease-in;
+}
+
+@keyframes slide-fade-in {
+	from {
+		opacity: 0;
+		transform: translateX(-20px);
+	}
+	to {
+		opacity: 1;
+		transform: translateX(0);
+	}
 }
 
 form {
 	display: flex;
 	flex-direction: column;
 }
+
+.add-day-card {
+	display: flex;
+	flex-direction: row;
+	align-items: center;
+	padding: 16px;
+	gap: 1rem;
+	margin-bottom: 1rem;
+	cursor: pointer;
+}
+
+.add-day-card h3 {
+	flex-grow: 1;
+	margin: 0;
+	font-weight: normal;
+}
+
+.action-buttons {
+	display: flex;
+	flex-direction: row;
+	justify-content: space-between;
+	align-items: center;
+	margin-bottom: 1rem;
+	gap: 1rem;
+}
+
+.warning {
+	display: flex;
+	flex-direction: column;
+}
+
+:host {
+	max-width: 100%;
+}

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

@@ -1,19 +1,23 @@
 import { ComponentFixture, TestBed } from '@angular/core/testing';
 import { provideZonelessChangeDetection } from '@angular/core';
 import { UserInput } from './user-input';
+import { provideAnimationsAsync } from '@angular/platform-browser/animations/async';
+import { UserInputService } from '../../services/user-input-service';
 
 describe('UserInput', () => {
 	let component: UserInput;
 	let fixture: ComponentFixture<UserInput>;
+	let userInputService: UserInputService;
 
 	beforeEach(async () => {
 		await TestBed.configureTestingModule({
 			imports: [UserInput],
-			providers: [provideZonelessChangeDetection()],
+			providers: [provideZonelessChangeDetection(), provideAnimationsAsync()],
 		}).compileComponents();
 
 		fixture = TestBed.createComponent(UserInput);
 		component = fixture.componentInstance;
+		userInputService = TestBed.inject(UserInputService);
 		fixture.detectChanges();
 	});
 
@@ -21,20 +25,22 @@ describe('UserInput', () => {
 		expect(component).toBeTruthy();
 	});
 
-	it('should initialize form with values from service', () => {
-		expect(component.userInputForm).toBeDefined();
-		expect(component.userInputForm.get('CP')).toBeDefined();
-		expect(component.userInputForm.get('RTT')).toBeDefined();
-		expect(component.userInputForm.get('Others')).toBeDefined();
+	it('should initialize with vacation days from service', () => {
+		const vacationDays = userInputService.vacationNumberSignal();
+		expect(vacationDays).toBeDefined();
+		expect(Array.isArray(vacationDays)).toBe(true);
+		expect(vacationDays.length).toBeGreaterThan(0);
 	});
 
-	it('should have valid form controls', () => {
-		const cpControl = component.userInputForm.get('CP');
-		const rttControl = component.userInputForm.get('RTT');
-		const othersControl = component.userInputForm.get('Others');
+	it('should add a new vacation day', () => {
+		const initialLength = userInputService.vacationNumberSignal().length;
+		component.addDay();
+		expect(userInputService.vacationNumberSignal().length).toBe(initialLength + 1);
+	});
 
-		expect(cpControl).toBeTruthy();
-		expect(rttControl).toBeTruthy();
-		expect(othersControl).toBeTruthy();
+	it('should remove a vacation day', () => {
+		const initialLength = userInputService.vacationNumberSignal().length;
+		component.removeFromList(0);
+		expect(userInputService.vacationNumberSignal().length).toBe(initialLength - 1);
 	});
 });

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

@@ -1,68 +1,77 @@
-import { Component, OnInit, OnDestroy, effect } from '@angular/core';
-import { MatFormField, MatLabel } from '@angular/material/form-field';
+import { Component, computed, inject, ChangeDetectionStrategy } from '@angular/core';
 import { MatInputModule } from '@angular/material/input';
-import { FormControl, FormGroup, ReactiveFormsModule } from '@angular/forms';
 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';
+import { DayInput } from '../userInput/day-input/day-input';
+import { MatButtonModule } from '@angular/material/button';
+import { tooltipTypeMapping, DayType, VacDay } from '../../services/calendar-service';
 
 @Component({
 	selector: 'app-user-input',
 	imports: [
-		MatFormField,
-		MatLabel,
 		MatInputModule,
-		ReactiveFormsModule,
-		CalendarSettings,
 		CalendarSettings,
+		MatCard,
+		MatCardContent,
+		MatIcon,
+		MatButtonModule,
+		DayInput,
 	],
 	templateUrl: './user-input.html',
 	styleUrl: './user-input.scss',
+	changeDetection: ChangeDetectionStrategy.OnPush,
 })
-export class UserInput implements OnInit, OnDestroy {
-	constructor(private userInputService: UserInputService) {
-		// Watch for signal changes and update form
-		effect(() => {
-			const vacationData = this.userInputService.vacationNumberSignal();
-			this.userInputForm.patchValue(
-				{
-					CP: vacationData.cp,
-					RTT: vacationData.rtt,
-					Others: vacationData.other,
-				},
-				{ emitEvent: false },
-			);
-		});
-	}
+export class UserInput {
+	private userInputService: UserInputService = inject(UserInputService);
 
-	private destroy$ = new Subject<void>();
-
-	userInputForm: FormGroup = new FormGroup({
-		CP: new FormControl<number | null>(null),
-		RTT: new FormControl<number | null>(null),
-		Others: new FormControl<number | null>(null),
+	protected remainingDays = computed(() => {
+		const remaining = this.userInputService.remainingVacationDaysSignal();
+		return remaining.reduce((acc, day) => acc + day.numberOfDays, 0);
 	});
 
-	ngOnInit() {
-		this.userInputForm.valueChanges
-			.pipe(debounceTime(1500), takeUntil(this.destroy$))
-			.subscribe(() => this.submitForm());
+	protected remainingDaysDetails = computed(() => {
+		const remaining = this.userInputService.remainingVacationDaysSignal();
+		return remaining
+			.filter((day) => day.numberOfDays > 0)
+			.map((day) => {
+				const typeName = tooltipTypeMapping[day.type as unknown as DayType];
+				const expiryDate = day.expiryDate.toLocaleDateString('fr-FR', {
+					day: 'numeric',
+					month: 'short',
+					year: 'numeric',
+				});
+				return `${day.numberOfDays} ${typeName} (exp. ${expiryDate})`;
+			});
+	});
+
+	protected hasRemainingDays = computed(() => this.remainingDays() > 0);
+
+	protected get daysOff() {
+		return this.userInputService.vacationNumberSignal();
 	}
 
-	ngOnDestroy() {
-		this.destroy$.next();
-		this.destroy$.complete();
+	public addDay() {
+		this.userInputService.vacationNumberSignal.update((days) => [
+			...days,
+			this.userInputService.createVacationDay(),
+		]);
 	}
 
-	private submitForm() {
-		if (this.userInputForm.valid) {
-			const vacationData: VacationsNumber = {
-				cp: this.userInputForm.get('CP')?.value || 0,
-				rtt: this.userInputForm.get('RTT')?.value || 0,
-				other: this.userInputForm.get('Others')?.value || 0,
-			};
-			this.userInputService.vacationNumberSignal.set(vacationData);
-		}
+	public removeFromList(index: number) {
+		this.userInputService.vacationNumberSignal.update((days) =>
+			days.filter((_, i) => i !== index),
+		);
+	}
+
+	public updateDay(index: number, updatedDay: VacDay) {
+		this.userInputService.vacationNumberSignal.update((days) =>
+			days.map((day, i) => (i === index ? updatedDay : day)),
+		);
+	}
+
+	public triggerComputation() {
+		this.userInputService.requestComputation();
 	}
 }

src/app/components/userInput/day-input/day-input.html

@@ -0,0 +1,36 @@
+<!-- <mat-list-item role="listitem"> -->
+<mat-card class="card">
+	<mat-form-field class="numberInput">
+		<input
+			matInput
+			type="number"
+			min="0"
+			[value]="day().numberOfDays"
+			(input)="onInput($event)"
+		/>
+	</mat-form-field>
+	<mat-form-field class="dayTypeInput">
+		<mat-select (valueChange)="onTypeChange($event)" [value]="day().type">
+			<mat-option></mat-option>
+			@for (dayType of selectableDayTypes; track $index) {
+				<mat-option [value]="dayType">{{ tooltipTypeMapping[dayType] }}</mat-option>
+			}
+		</mat-select>
+	</mat-form-field>
+	<mat-form-field class="dateInput">
+		<mat-label>Choose a date</mat-label>
+		<input
+			matInput
+			type="datetime"
+			[matDatepicker]="picker"
+			[value]="day().expiryDate"
+			(dateChange)="addEvent($event)"
+		/>
+		<mat-datepicker-toggle matIconSuffix [for]="picker"></mat-datepicker-toggle>
+		<mat-datepicker #picker></mat-datepicker>
+	</mat-form-field>
+	<button matFab aria-label="Delete entry" (click)="deleteEntry.emit()">
+		<mat-icon>close</mat-icon>
+	</button>
+</mat-card>
+<!-- </mat-list-item> -->

src/app/components/userInput/day-input/day-input.scss

@@ -0,0 +1,20 @@
+.card {
+	display: flex;
+	flex-direction: row;
+	align-items: center;
+	justify-content: space-between;
+	padding: 16px;
+	gap: 16px;
+}
+
+.dateInput {
+	flex-grow: 1;
+}
+
+.numberInput {
+	width: 80px;
+}
+
+::ng-deep .mat-mdc-form-field-subscript-wrapper {
+	display: none;
+}

src/app/components/userInput/day-input/day-input.spec.ts

@@ -0,0 +1,33 @@
+import { ComponentFixture, TestBed } from '@angular/core/testing';
+import { provideAnimationsAsync } from '@angular/platform-browser/animations/async';
+
+import { DayInput } from './day-input';
+import { SelectableDayType, VacDay } from '../../../services/calendar-service';
+
+describe('DayInput', () => {
+	let component: DayInput;
+	let fixture: ComponentFixture<DayInput>;
+
+	const mockVacDay: VacDay = {
+		id: 'test-id',
+		type: SelectableDayType.CP,
+		numberOfDays: 5,
+		expiryDate: new Date('2025-12-31'),
+	};
+
+	beforeEach(async () => {
+		await TestBed.configureTestingModule({
+			imports: [DayInput],
+			providers: [provideAnimationsAsync()],
+		}).compileComponents();
+
+		fixture = TestBed.createComponent(DayInput);
+		component = fixture.componentInstance;
+		fixture.componentRef.setInput('day', mockVacDay);
+		fixture.detectChanges();
+	});
+
+	it('should create', () => {
+		expect(component).toBeTruthy();
+	});
+});

src/app/components/userInput/day-input/day-input.ts

@@ -0,0 +1,103 @@
+import { Component, input, output, ChangeDetectionStrategy } from '@angular/core';
+import { SelectableDayType, tooltipTypeMapping, VacDay } from '../../../services/calendar-service';
+import { MatCard } from '@angular/material/card';
+import { MatOption, MatSelect } from '@angular/material/select';
+import { MatInput, MatInputModule, MatLabel } from '@angular/material/input';
+import {
+	MatDatepicker,
+	MatDatepickerInput,
+	MatDatepickerInputEvent,
+	MatDatepickerToggle,
+} from '@angular/material/datepicker';
+import {
+	DateAdapter,
+	MAT_DATE_FORMATS,
+	MAT_DATE_LOCALE,
+	NativeDateAdapter,
+} from '@angular/material/core';
+import { MatIconModule } from '@angular/material/icon';
+import { MatButtonModule } from '@angular/material/button';
+
+class CustomDateAdapter extends NativeDateAdapter {
+	override format(date: Date, displayFormat: unknown): string {
+		if (displayFormat === 'input') {
+			const day = date.getDate().toString().padStart(2, '0');
+			const month = (date.getMonth() + 1).toString().padStart(2, '0');
+			const year = date.getFullYear();
+			return `${day}/${month}/${year}`;
+		}
+		return super.format(date, displayFormat as object);
+	}
+
+	override parse(value: string): Date | null {
+		if (!value) return null;
+		const parts = value.split('/');
+		if (parts.length === 3) {
+			const day = parseInt(parts[0], 10);
+			const month = parseInt(parts[1], 10) - 1;
+			const year = parseInt(parts[2], 10);
+			if (!isNaN(day) && !isNaN(month) && !isNaN(year)) {
+				return new Date(year, month, day);
+			}
+		}
+		return null;
+	}
+}
+
+const MY_DATE_FORMATS = {
+	parse: {
+		dateInput: 'input',
+	},
+	display: {
+		dateInput: 'input',
+		monthYearLabel: { year: 'numeric', month: 'short' },
+		dateA11yLabel: { year: 'numeric', month: 'long', day: 'numeric' },
+		monthYearA11yLabel: { year: 'numeric', month: 'long' },
+	},
+};
+
+@Component({
+	selector: 'app-day-input',
+	imports: [
+		MatIconModule,
+		MatCard,
+		MatSelect,
+		MatOption,
+		MatInput,
+		MatDatepicker,
+		MatLabel,
+		MatDatepickerToggle,
+		MatDatepickerInput,
+		MatInputModule,
+		MatButtonModule,
+	],
+	templateUrl: './day-input.html',
+	styleUrl: './day-input.scss',
+	changeDetection: ChangeDetectionStrategy.OnPush,
+	providers: [
+		{ provide: DateAdapter, useClass: CustomDateAdapter },
+		{ provide: MAT_DATE_LOCALE, useValue: 'en-GB' },
+		{ provide: MAT_DATE_FORMATS, useValue: MY_DATE_FORMATS },
+	],
+})
+export class DayInput {
+	public day = input.required<VacDay>();
+	public dayChange = output<VacDay>();
+	public deleteEntry = output<void>();
+
+	protected readonly selectableDayTypes = Object.values(SelectableDayType);
+	protected readonly tooltipTypeMapping = tooltipTypeMapping;
+
+	onInput(event: Event) {
+		const value = Number((event.target as HTMLInputElement).value);
+		this.dayChange.emit({ ...this.day(), numberOfDays: value });
+	}
+
+	onTypeChange(type: SelectableDayType) {
+		this.dayChange.emit({ ...this.day(), type });
+	}
+
+	addEvent(event: MatDatepickerInputEvent<Date>) {
+		this.dayChange.emit({ ...this.day(), expiryDate: event.value! });
+	}
+}

src/app/services/calendar-service.ts

@@ -184,10 +184,11 @@ export class CalendarService {
 	}
 }
 
-export type VacationsNumber = {
-	rtt: number;
-	cp: number;
-	other: number;
+export type VacDay = {
+	id: string;
+	type: SelectableDayType;
+	numberOfDays: number;
+	expiryDate: Date;
 };
 
 export type Week = (Date | null)[];
@@ -203,6 +204,12 @@ export enum DayType {
 	TODAY = 'today',
 }
 
+export enum SelectableDayType {
+	CP = DayType.CP,
+	RTT = DayType.RTT,
+	OTHER = DayType.OTHER,
+}
+
 export const tooltipTypeMapping: { [key in DayType]: string } = {
 	[DayType.WEEKEND]: 'Weekend',
 	[DayType.CLOSED_DAY]: 'Jour Férié',
@@ -266,7 +273,7 @@ export class SelectedDate implements SelectedDateInterface {
 	getClasses(date: Date): string {
 		let returnType: DayType | string = '';
 		if (this.type && date >= this.range.start! && date <= this.range.end!) {
-			returnType = returnType += this.type + ' ';
+			returnType += this.type + ' ';
 		}
 		return returnType;
 	}
@@ -298,6 +305,7 @@ 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 +509,7 @@ 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;
@@ -535,36 +543,81 @@ export class SelectedDates implements SelectedDateInterface {
 		return totalScore;
 	}
 
-	optimizeVacations(
-		vacationsNumber: VacationsNumber,
+	async optimizeVacations(
+		vacationDays: VacDay[],
 		calendarSettingsService: CalendarSettingsService,
 		calendarService: CalendarService,
-	): void {
-		if (calendarSettingsService.samediMalin()) this.samediMalin(vacationsNumber);
-		while (vacationsNumber.cp > 0) {
-			const result = this.lookForVacation(DayType.CP, calendarService);
-			if (result.heuristic === SelectedDates.NO_VALID_STRATEGY_HEURISTIC) {
+		progressCallback?: (progress: number) => void,
+	): Promise<VacDay[]> {
+		if (calendarSettingsService.get('samediMalin')()) this.samediMalin(vacationDays);
+
+		// Calculate total days to process
+		const totalDays = vacationDays.reduce((sum, vd) => sum + vd.numberOfDays, 0);
+		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();
+
+		// Track VacDays that can't find valid placements
+		const exhaustedVacDayIds = new Set<string>();
+
+		// Process vacation days ordered by expiration date (earliest first)
+		while (vacationDays.some((vd) => vd.numberOfDays > 0 && !exhaustedVacDayIds.has(vd.id))) {
+			// Sort by expiration date to use days that expire first, excluding exhausted ones
+			const sortedVacDays = [...vacationDays]
+				.filter((vd) => vd.numberOfDays > 0 && !exhaustedVacDayIds.has(vd.id))
+				.sort((a, b) => a.expiryDate.getTime() - b.expiryDate.getTime());
+
+			if (sortedVacDays.length === 0) {
 				break;
 			}
-			vacationsNumber.cp -= 1;
-		}
-		while (vacationsNumber.rtt > 0) {
-			const result = this.lookForVacation(DayType.RTT, calendarService);
+
+			const vacDayToUse = sortedVacDays[0];
+			const result = this.lookForVacation(vacDayToUse, calendarService);
+
 			if (result.heuristic === SelectedDates.NO_VALID_STRATEGY_HEURISTIC) {
-				break;
+				// Mark this VacDay as exhausted and try other vacation days
+				exhaustedVacDayIds.add(vacDayToUse.id);
+				continue;
 			}
-			vacationsNumber.rtt -= 1;
+
+			vacDayToUse.numberOfDays -= 1;
+			processedDays++;
+			await updateProgress();
 		}
-		while (vacationsNumber.other > 0) {
-			const result = this.lookForVacation(DayType.OTHER, calendarService);
-			if (result.heuristic === SelectedDates.NO_VALID_STRATEGY_HEURISTIC) {
-				break;
-			}
-			vacationsNumber.other -= 1;
+
+		// Final progress update (100%)
+		if (progressCallback) {
+			progressCallback(100);
 		}
+
+		// Inform user if not all days were placed
+		const remainingDays = vacationDays.reduce((sum, vd) => sum + vd.numberOfDays, 0);
+		if (remainingDays > 0) {
+			console.warn(
+				`Optimization stopped: ${remainingDays} of ${totalDays} vacation days remain unplaced. ` +
+					`Too many days have equivalent placement quality - please place remaining days manually.`,
+			);
+		}
+
+		return vacationDays;
 	}
 
-	samediMalin(vacationsNumber: VacationsNumber): void {
+	samediMalin(vacationDays: VacDay[]): void {
 		const now = new Date();
 		now.setHours(0, 0, 0, 0);
 		const nowTime = now.getTime();
@@ -573,14 +626,63 @@ export class SelectedDates implements SelectedDateInterface {
 			(date) => date.type === DayType.CLOSED_DAY && date.range.start?.getDay() === 6,
 		);
 
+		// Helper function to get available CP days that don't expire before a given date (ordered by expiry date)
+		const getAvailableCpDaysForDate = (useByDate: Date): VacDay[] => {
+			const useByTime = useByDate.getTime();
+			return vacationDays
+				.filter(
+					(vd) =>
+						vd.type === SelectableDayType.CP &&
+						vd.numberOfDays > 0 &&
+						vd.expiryDate.getTime() >= useByTime,
+				)
+				.sort((a, b) => a.expiryDate.getTime() - b.expiryDate.getTime());
+		};
+
+		// Helper function to get total available CP days that don't expire before a given date
+		const getTotalCpDaysForDate = (useByDate: Date): number => {
+			const useByTime = useByDate.getTime();
+			return vacationDays
+				.filter(
+					(vd) =>
+						vd.type === SelectableDayType.CP && vd.expiryDate.getTime() >= useByTime,
+				)
+				.reduce((sum, vd) => sum + vd.numberOfDays, 0);
+		};
+
+		// Helper function to consume 2 CP days from the available pool for a specific date
+		const consume2CpDaysForDate = (useByDate: Date): boolean => {
+			let daysToConsume = 2;
+			const cpDays = getAvailableCpDaysForDate(useByDate);
+			for (const cpDay of cpDays) {
+				if (daysToConsume === 0) break;
+				const toConsume = Math.min(cpDay.numberOfDays, daysToConsume);
+				cpDay.numberOfDays -= toConsume;
+				daysToConsume -= toConsume;
+			}
+			return daysToConsume === 0;
+		};
+
+		// Helper function to add 1 OTHER day as reward
+		const addOtherDayReward = (): void => {
+			// Find an existing OTHER VacDay or create a new one
+			const otherDay = vacationDays.find((vd) => vd.type === SelectableDayType.OTHER);
+			if (otherDay) {
+				otherDay.numberOfDays += 1;
+			} else {
+				// Create a new OTHER VacDay with a far future expiry date
+				vacationDays.push({
+					id: crypto.randomUUID(),
+					type: SelectableDayType.OTHER,
+					numberOfDays: 1,
+					expiryDate: new Date(now.getFullYear() + 10, 11, 31),
+				});
+			}
+		};
+
 		for (const holiday of samedi_ferie) {
 			if (!holiday.range.start) continue;
 
-			// Skip if no CP days available
-			if (vacationsNumber.cp < 2) {
-				continue;
-			}
-
 			// Get the Saturday date (holiday) and the following Sunday
 			const saturdayDate = new Date(holiday.range.start);
 			const sundayDate = new Date(saturdayDate);
@@ -605,21 +707,24 @@ export class SelectedDates implements SelectedDateInterface {
 			const oneDayAfter = new Date(sundayDate);
 			oneDayAfter.setDate(sundayDate.getDate() + 1);
 
-			// Check if we can apply each strategy (and not in the past)
+			// Check if we can apply each strategy (not in the past, not already selected, and have non-expired CP days)
 			const canApplyTwoBeforeStrategy =
 				twoDaysBefore1.getTime() >= nowTime &&
 				!this.isSelected(twoDaysBefore1) &&
-				!this.isSelected(twoDaysBefore2);
+				!this.isSelected(twoDaysBefore2) &&
+				getTotalCpDaysForDate(twoDaysBefore2) >= 2; // Check expiry against the latest date used
 
 			const canApplyTwoAfterStrategy =
 				twoDaysAfter1.getTime() >= nowTime &&
 				!this.isSelected(twoDaysAfter1) &&
-				!this.isSelected(twoDaysAfter2);
+				!this.isSelected(twoDaysAfter2) &&
+				getTotalCpDaysForDate(twoDaysAfter2) >= 2; // Check expiry against the latest date used
 
 			const canApplyMixedStrategy =
 				oneDayBefore.getTime() >= nowTime &&
 				!this.isSelected(oneDayBefore) &&
-				!this.isSelected(oneDayAfter);
+				!this.isSelected(oneDayAfter) &&
+				getTotalCpDaysForDate(oneDayAfter) >= 2; // Check expiry against the latest date used
 
 			// Test all applicable strategies and choose the one with the best heuristic score
 			const strategies: { apply: () => void; heuristic: number }[] = [];
@@ -642,8 +747,8 @@ export class SelectedDates implements SelectedDateInterface {
 								new DateRange<Date>(twoDaysBefore1, twoDaysBefore2),
 							),
 						);
-						vacationsNumber.cp -= 2;
-						vacationsNumber.other += 1; // Reward: gain 1 other day
+						consume2CpDaysForDate(twoDaysBefore2);
+						addOtherDayReward();
 					},
 					heuristic: heuristic,
 				});
@@ -666,8 +771,8 @@ export class SelectedDates implements SelectedDateInterface {
 								new DateRange<Date>(twoDaysAfter1, twoDaysAfter2),
 							),
 						);
-						vacationsNumber.cp -= 2;
-						vacationsNumber.other += 1; // Reward: gain 1 other day
+						consume2CpDaysForDate(twoDaysAfter2);
+						addOtherDayReward();
 					},
 					heuristic: heuristic,
 				});
@@ -699,8 +804,8 @@ export class SelectedDates implements SelectedDateInterface {
 								new DateRange<Date>(oneDayAfter, oneDayAfter),
 							),
 						);
-						vacationsNumber.cp -= 2;
-						vacationsNumber.other += 1; // Reward: gain 1 other day
+						consume2CpDaysForDate(oneDayAfter);
+						addOtherDayReward();
 					},
 					heuristic: heuristic,
 				});
@@ -720,22 +825,24 @@ export class SelectedDates implements SelectedDateInterface {
 	}
 
 	lookForVacation(
-		vacType: DayType,
+		vacDay: VacDay,
 		calendarService: CalendarService,
 	): { apply: () => void; heuristic: number } {
 		const daysOfYear = calendarService.monthsInAYearFromNow();
 		const now = new Date();
 		now.setHours(0, 0, 0, 0);
 		const nowTime = now.getTime();
+		const expiryTime = vacDay.expiryDate.getTime();
 
-		// Preprocess: filter out past days and already selected days in one pass
+		// Preprocess: filter out past days, already selected days, and days after expiry date
 		const candidateDays: Date[] = [];
 		for (const month of daysOfYear) {
 			for (const week of month) {
 				for (const day of week) {
 					if (day) {
 						day.setHours(0, 0, 0, 0);
-						if (day.getTime() >= nowTime && !this.isSelected(day)) {
+						const dayTime = day.getTime();
+						if (dayTime >= nowTime && dayTime <= expiryTime && !this.isSelected(day)) {
 							candidateDays.push(day);
 						}
 					}
@@ -748,9 +855,11 @@ export class SelectedDates implements SelectedDateInterface {
 			return { apply: () => {}, heuristic: SelectedDates.NO_VALID_STRATEGY_HEURISTIC };
 		}
 
+		const vacType = vacDay.type as unknown as DayType;
 		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 +876,7 @@ 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 +891,25 @@ 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/calendar-settings-service.spec.ts

@@ -17,17 +17,29 @@ describe('CalendarSettingsService', () => {
 	});
 
 	it('should initialize with default values', () => {
-		expect(service.showWeekNumbers()).toBe(false);
-		expect(service.samediMalin()).toBe(true);
+		expect(service.get('showWeekNumbers')()).toBe(false);
+		expect(service.get('samediMalin')()).toBe(true);
 	});
 
 	it('should allow updating showWeekNumbers', () => {
-		service.showWeekNumbers.set(true);
-		expect(service.showWeekNumbers()).toBe(true);
+		service.get('showWeekNumbers').set(true);
+		expect(service.get('showWeekNumbers')()).toBe(true);
 	});
 
 	it('should allow updating samediMalin', () => {
-		service.samediMalin.set(false);
-		expect(service.samediMalin()).toBe(false);
+		service.get('samediMalin').set(false);
+		expect(service.get('samediMalin')()).toBe(false);
+	});
+
+	it('should provide settings array for UI iteration', () => {
+		const settingsArray = service.settingsArray;
+		expect(settingsArray.length).toBe(2);
+		expect(settingsArray[0].id).toBe('showWeekNumbers');
+		expect(settingsArray[1].id).toBe('samediMalin');
+	});
+
+	it('should return correct descriptions', () => {
+		expect(service.getDescription('showWeekNumbers')).toBe('Afficher les numéros de semaine');
+		expect(service.getDescription('samediMalin')).toBe('Activer le Samedi Malin');
 	});
 });

src/app/services/calendar-settings-service.ts

@@ -1,9 +1,68 @@
-import { Injectable, signal } from '@angular/core';
+import { Injectable, WritableSignal, inject, Injector } from '@angular/core';
+import { storedSignal } from '../shared/utils/stored-signal';
+
+interface SettingDefinition {
+	defaultValue: boolean;
+	description: string;
+}
 
 @Injectable({
 	providedIn: 'root',
 })
 export class CalendarSettingsService {
-	readonly showWeekNumbers = signal(false);
-	readonly samediMalin = signal(true);
+	private readonly injector = inject(Injector);
+
+	private readonly definitions = new Map<string, SettingDefinition>([
+		[
+			'showWeekNumbers',
+			{
+				defaultValue: false,
+				description: 'Afficher les numéros de semaine',
+			},
+		],
+		[
+			'samediMalin',
+			{
+				defaultValue: true,
+				description: 'Activer le Samedi Malin',
+			},
+		],
+	]);
+
+	private readonly signals = new Map<string, WritableSignal<boolean>>();
+
+	readonly settingsArray: ReadonlyArray<{
+		id: string;
+		signal: WritableSignal<boolean>;
+		description: string;
+	}>;
+
+	constructor() {
+		for (const [id, def] of this.definitions) {
+			const storageKey = `calendarSettings.${id}`;
+			this.signals.set(id, storedSignal(storageKey, def.defaultValue, this.injector));
+		}
+
+		this.settingsArray = Array.from(this.definitions.entries()).map(([id, def]) => ({
+			id,
+			signal: this.signals.get(id)!,
+			description: def.description,
+		}));
+	}
+
+	/**
+	 * Returns the signal for the given setting ID.
+	 * @throws Error if the setting ID doesn't exist
+	 */
+	get(id: string): WritableSignal<boolean> {
+		const signal = this.signals.get(id);
+		if (!signal) {
+			throw new Error(`Setting with id "${id}" does not exist`);
+		}
+		return signal;
+	}
+
+	getDescription(id: string): string {
+		return this.definitions.get(id)?.description ?? '';
+	}
 }

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

@@ -1,8 +1,9 @@
 import { TestBed } from '@angular/core/testing';
 import { provideZonelessChangeDetection } from '@angular/core';
 import { UserInputService } from './user-input-service';
+import { SelectableDayType, VacDay } from './calendar-service';
 
-describe('UserInput', () => {
+describe('UserInputService', () => {
 	let service: UserInputService;
 
 	beforeEach(() => {
@@ -16,19 +17,41 @@ describe('UserInput', () => {
 		expect(service).toBeTruthy();
 	});
 
-	it('should initialize with random vacation numbers', () => {
+	it('should initialize with vacation days array', () => {
 		const vacations = service.vacationNumberSignal();
-		expect(vacations.cp).toBeGreaterThanOrEqual(1);
-		expect(vacations.cp).toBeLessThanOrEqual(9);
-		expect(vacations.rtt).toBeGreaterThanOrEqual(1);
-		expect(vacations.rtt).toBeLessThanOrEqual(9);
-		expect(vacations.other).toBeGreaterThanOrEqual(1);
-		expect(vacations.other).toBeLessThanOrEqual(9);
+		expect(Array.isArray(vacations)).toBe(true);
+		expect(vacations.length).toBeGreaterThan(0);
+	});
+
+	it('should have vacation days with valid properties', () => {
+		const vacations = service.vacationNumberSignal();
+		vacations.forEach((day) => {
+			expect(day.id).toBeDefined();
+			expect(day.type).toBeDefined();
+			expect(day.numberOfDays).toBeGreaterThanOrEqual(1);
+			expect(day.numberOfDays).toBeLessThanOrEqual(9);
+			expect(day.expiryDate).toBeInstanceOf(Date);
+		});
 	});
 
 	it('should update vacation number signal', () => {
-		const newVacations = { cp: 5, rtt: 3, other: 2 };
+		const newVacations: VacDay[] = [
+			{
+				id: 'test-id',
+				type: SelectableDayType.CP,
+				numberOfDays: 5,
+				expiryDate: new Date(),
+			},
+		];
 		service.vacationNumberSignal.set(newVacations);
 		expect(service.vacationNumberSignal()).toEqual(newVacations);
 	});
+
+	it('should create a new vacation day', () => {
+		const newDay = service.createVacationDay();
+		expect(newDay.id).toBeDefined();
+		expect(newDay.type).toBe(SelectableDayType.CP);
+		expect(newDay.numberOfDays).toBe(1);
+		expect(newDay.expiryDate).toBeInstanceOf(Date);
+	});
 });

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

@@ -1,5 +1,5 @@
 import { Injectable, signal } from '@angular/core';
-import { VacationsNumber } from './calendar-service';
+import { SelectableDayType, VacDay } from './calendar-service';
 
 @Injectable({
 	providedIn: 'root',
@@ -9,13 +9,44 @@ export class UserInputService {
 		return Math.floor(Math.random() * 9) + 1;
 	}
 
-	private getInitialValues(): VacationsNumber {
+	private getInitialValues(): VacDay[] {
+		return [
+			{
+				id: crypto.randomUUID(),
+				type: SelectableDayType.CP,
+				numberOfDays: this.getRandomNumber(),
+				// today + 365 days
+				expiryDate: new Date(new Date().setFullYear(new Date().getFullYear() + 1)),
+			},
+			{
+				id: crypto.randomUUID(),
+				type: SelectableDayType.RTT,
+				numberOfDays: this.getRandomNumber(),
+				expiryDate: new Date(new Date().setFullYear(new Date().getFullYear() + 1)),
+			},
+			{
+				id: crypto.randomUUID(),
+				type: SelectableDayType.OTHER,
+				numberOfDays: this.getRandomNumber(),
+				expiryDate: new Date(new Date().setFullYear(new Date().getFullYear() + 1)),
+			},
+		];
+	}
+
+	public createVacationDay(): VacDay {
 		return {
-			cp: this.getRandomNumber(),
-			rtt: this.getRandomNumber(),
-			other: this.getRandomNumber(),
+			id: crypto.randomUUID(),
+			type: SelectableDayType.CP,
+			numberOfDays: 1,
+			expiryDate: new Date(new Date().setFullYear(new Date().getFullYear() + 1)),
 		};
 	}
 
-	readonly vacationNumberSignal = signal<VacationsNumber>(this.getInitialValues());
+	readonly vacationNumberSignal = signal<VacDay[]>(this.getInitialValues());
+	readonly remainingVacationDaysSignal = signal<VacDay[]>([]);
+	readonly computeTriggerSignal = signal(0);
+
+	public requestComputation(): void {
+		this.computeTriggerSignal.update((count) => count + 1);
+	}
 }

src/app/shared/utils/stored-signal.ts

@@ -0,0 +1,111 @@
+import { signal, effect, WritableSignal, Injector, runInInjectionContext } from '@angular/core';
+
+/**
+ * Checks if localStorage is available in the current environment.
+ * @returns true if localStorage is accessible, false otherwise
+ */
+function isLocalStorageAvailable(): boolean {
+	try {
+		return typeof localStorage !== 'undefined' && localStorage !== null;
+	} catch {
+		return false;
+	}
+}
+
+/**
+ * Creates a signal that automatically persists its value to localStorage.
+ *
+ * The signal will:
+ * - Initialize with the stored value from localStorage if available
+ * - Fall back to the provided initial value if no stored value exists or parsing fails
+ * - Automatically sync changes to localStorage with debouncing (300ms delay)
+ * - Work safely in SSR and environments where localStorage is unavailable
+ *
+ * @template T - The type of value stored in the signal (must be JSON-serializable)
+ * @param key - The localStorage key used to store the value
+ * @param initialValue - The default value used when no stored value exists
+ * @param injector - The Angular injector (use inject(Injector) to get current context)
+ * @param debounceMs - Optional debounce delay in milliseconds (default: 300ms)
+ * @returns A writable signal that persists to localStorage
+ *
+ * @example
+ * ```typescript
+ * const injector = inject(Injector);
+ * const darkMode = storedSignal('theme.darkMode', false, injector);
+ * darkMode.set(true); // Automatically saved to localStorage after 300ms
+ * console.log(darkMode()); // true
+ * ```
+ *
+ * @remarks
+ * - Requires an Injector to create the effect in the proper context
+ * - Values must be JSON-serializable (no functions, circular references, etc.)
+ * - In SSR or when localStorage is unavailable, the signal works normally but won't persist
+ * - Corrupted localStorage data is automatically cleared and reset to initial value
+ * - localStorage writes are debounced to improve performance with frequent updates
+ */
+export function storedSignal<T>(
+	key: string,
+	initialValue: T,
+	injector: Injector,
+	debounceMs = 300,
+): WritableSignal<T> {
+	let parsedValue = initialValue;
+
+	if (isLocalStorageAvailable()) {
+		try {
+			const storedValue = localStorage.getItem(key);
+			if (storedValue) {
+				parsedValue = JSON.parse(storedValue) as T;
+			}
+		} catch (error) {
+			console.warn(
+				`Failed to parse stored value for key "${key}". Using initial value.`,
+				error,
+			);
+			try {
+				localStorage.removeItem(key);
+			} catch {
+				// Ignore removal errors
+			}
+		}
+	}
+
+	const s = signal(parsedValue);
+
+	let timeoutId: ReturnType<typeof setTimeout> | null = null;
+	let isFirstRun = true;
+
+	runInInjectionContext(injector, () => {
+		effect(() => {
+			const value = s();
+
+			// Skip the first execution to avoid writing back what we just read
+			if (isFirstRun) {
+				isFirstRun = false;
+				return;
+			}
+
+			// Clear any pending timeout
+			if (timeoutId !== null) {
+				clearTimeout(timeoutId);
+			}
+
+			// Debounce the localStorage write
+			timeoutId = setTimeout(() => {
+				if (isLocalStorageAvailable()) {
+					try {
+						localStorage.setItem(key, JSON.stringify(value));
+					} catch (error) {
+						console.warn(
+							`Failed to save value for key "${key}" to localStorage.`,
+							error,
+						);
+					}
+				}
+				timeoutId = null;
+			}, debounceMs);
+		});
+	});
+
+	return s;
+}

tsconfig.app.json

@@ -4,14 +4,8 @@
 	"extends": "./tsconfig.json",
 	"compilerOptions": {
 		"outDir": "./out-tsc/app",
-		"types": [
-			"node"
-		]
+		"types": ["node"]
 	},
-	"include": [
-		"src/**/*.ts"
-	],
-	"exclude": [
-		"src/**/*.spec.ts"
-	]
+	"include": ["src/**/*.ts"],
+	"exclude": ["src/**/*.spec.ts"]
 }

tsconfig.json

@@ -31,4 +31,4 @@
 			"path": "./tsconfig.spec.json"
 		}
 	]
-}
+}

tsconfig.spec.json

@@ -4,11 +4,7 @@
 	"extends": "./tsconfig.json",
 	"compilerOptions": {
 		"outDir": "./out-tsc/spec",
-		"types": [
-			"jasmine"
-		]
+		"types": ["jasmine"]
 	},
-	"include": [
-		"src/**/*.ts"
-	]
-}
+	"include": ["src/**/*.ts"]
+}