added localStorage functionality to the entire project, LLM keeps getting overloaded

app/utils/storage.ts

@@ -0,0 +1,94 @@
+import { FormData } from "@/app/formfile/formTypes";
+import { ChatHistory } from "@/app/exportType/types";
+
+// 1. Define the data structures for storage
+export interface StoredProject extends FormData {
+  id: string;
+  title: string;
+}
+
+export interface StoredChatSession {
+  id: string;
+  projectId: string;
+  projectTitle: string;
+  history: ChatHistory;
+}
+
+export interface UserData {
+  projects: StoredProject[];
+  chatSessions: StoredChatSession[];
+}
+
+const STORAGE_KEY = "hackSparkUserData";
+
+function safeGetLocalStorage(): UserData {
+  if (typeof window === 'undefined') {
+    return { projects: [], chatSessions: [] };
+  }
+  try {
+    const data = localStorage.getItem(STORAGE_KEY);
+    return data ? JSON.parse(data) : { projects: [], chatSessions: [] };
+  } catch (error) {
+    console.error("Failed to parse localStorage data:", error);
+    return { projects: [], chatSessions: [] };
+  }
+}
+
+//Retrieves all stored projects.
+export function getStoredProjects(): StoredProject[] {
+  return safeGetLocalStorage().projects;
+}
+
+
+//Retrieves all stored chat sessions.
+export function getStoredChatSessions(): StoredChatSession[] {
+  return safeGetLocalStorage().chatSessions;
+}
+
+//Finds a specific chat session by its project ID.
+export function getChatSessionByProjectId(projectId: string): StoredChatSession | undefined {
+    if (typeof window === 'undefined') return undefined;
+    const data = safeGetLocalStorage();
+    return data.chatSessions.find(session => session.projectId === projectId);
+}
+
+export function saveProject(formData: FormData): StoredProject {
+  if (typeof window === 'undefined') throw new Error("localStorage is not available.");
+  
+  const data = safeGetLocalStorage();
+  const newProject: StoredProject = {
+    ...formData,
+    id: new Date().toISOString(),
+    title: formData.Hackathon || "Untitled Project",
+  };
+
+  data.projects.push(newProject);
+  localStorage.setItem(STORAGE_KEY, JSON.stringify(data));
+  return newProject;
+}
+
+export function saveChatSession(projectId: string, projectTitle: string, history: ChatHistory) {
+  if (typeof window === 'undefined') return;
+
+  const data = safeGetLocalStorage();
+  const existingSessionIndex = data.chatSessions.findIndex(session => session.projectId === projectId);
+
+  if (existingSessionIndex > -1) {
+    data.chatSessions[existingSessionIndex].history = history;
+  } else {
+    const newSession: StoredChatSession = {
+      id: new Date().toISOString(),
+      projectId,
+      projectTitle,
+      history,
+    };
+    data.chatSessions.push(newSession);
+  }
+  
+  localStorage.setItem(STORAGE_KEY, JSON.stringify(data));
+}
+
+export function setProjectForEditing(project: StoredProject) {
+    if (typeof window === 'undefined') return;
+    localStorage.setItem('formData', JSON.stringify(project));
+}