Persistance dans le cache du navigateur

src/app/issues/issues.store.ts

@@ -1,5 +1,7 @@
 import { Injectable, signal } from '@angular/core';
 
+const ISSUES_STORAGE_KEY = 'bonsai.issues';
+
 export type IssueStatus = 'draft' | 'todo' | 'done' | 'in-progress';
 export type IssuePriority = 'Basse' | 'Moyenne' | 'Haute';
 
@@ -15,43 +17,52 @@ export type IssueEntity = {
   progress: number;
 };
 
+const DEFAULT_ISSUES: IssueEntity[] = [
+  {
+    id: 1,
+    assignee: 'Marie',
+    epic: 'EPIC-UI',
+    name: 'Bug affichage menu mobile',
+    dueDate: '2026-06-10',
+    description: 'Corriger le comportement du menu sur petits ecrans.',
+    priority: 'Haute',
+    status: 'in-progress',
+    progress: 35,
+  },
+  {
+    id: 2,
+    assignee: 'Nabil',
+    epic: 'EPIC-FORM',
+    name: 'Erreur validation formulaire projet',
+    dueDate: '2026-06-12',
+    description: 'Fiabiliser les regles de validation du formulaire projet.',
+    priority: 'Moyenne',
+    status: 'todo',
+    progress: 20,
+  },
+  {
+    id: 3,
+    assignee: 'Sonia',
+    epic: 'EPIC-CONTENT',
+    name: 'Mise a jour message de bienvenue',
+    dueDate: '2026-06-18',
+    description: 'Mettre a jour le wording d accueil selon la charte produit.',
+    priority: 'Basse',
+    status: 'done',
+    progress: 100,
+  },
+];
+
 @Injectable({ providedIn: 'root' })
 export class IssuesStore {
-  private readonly data = signal<IssueEntity[]>([
-    {
-      id: 1,
-      assignee: 'Marie',
-      epic: 'EPIC-UI',
-      name: 'Bug affichage menu mobile',
-      dueDate: '2026-06-10',
-      description: 'Corriger le comportement du menu sur petits ecrans.',
-      priority: 'Haute',
-      status: 'in-progress',
-      progress: 35,
-    },
-    {
-      id: 2,
-      assignee: 'Nabil',
-      epic: 'EPIC-FORM',
-      name: 'Erreur validation formulaire projet',
-      dueDate: '2026-06-12',
-      description: 'Fiabiliser les regles de validation du formulaire projet.',
-      priority: 'Moyenne',
-      status: 'todo',
-      progress: 20,
-    },
-    {
-      id: 3,
-      assignee: 'Sonia',
-      epic: 'EPIC-CONTENT',
-      name: 'Mise a jour message de bienvenue',
-      dueDate: '2026-06-18',
-      description: 'Mettre a jour le wording d accueil selon la charte produit.',
-      priority: 'Basse',
-      status: 'done',
-      progress: 100,
-    },
-  ]);
+  private readonly data = signal<IssueEntity[]>(DEFAULT_ISSUES);
+
+  constructor() {
+    const cachedIssues = this.readFromStorage();
+    if (cachedIssues) {
+      this.data.set(cachedIssues);
+    }
+  }
 
   readonly issues = this.data.asReadonly();
 
@@ -69,13 +80,42 @@ export class IssuesStore {
       const existingIndex = issues.findIndex((current) => current.id === issue.id);
 
       if (existingIndex === -1) {
-        return [...issues, issue];
+        const created = [...issues, issue];
+        this.persistToStorage(created);
+        return created;
       }
 
       const updated = [...issues];
       updated[existingIndex] = issue;
+      this.persistToStorage(updated);
       return updated;
     });
   }
+
+  private readFromStorage(): IssueEntity[] | null {
+    if (typeof window === 'undefined') {
+      return null;
+    }
+
+    const rawIssues = window.localStorage.getItem(ISSUES_STORAGE_KEY);
+    if (!rawIssues) {
+      return null;
+    }
+
+    try {
+      const parsed = JSON.parse(rawIssues);
+      return Array.isArray(parsed) ? (parsed as IssueEntity[]) : null;
+    } catch {
+      return null;
+    }
+  }
+
+  private persistToStorage(issues: IssueEntity[]): void {
+    if (typeof window === 'undefined') {
+      return;
+    }
+
+    window.localStorage.setItem(ISSUES_STORAGE_KEY, JSON.stringify(issues));
+  }
 }