harini

frontend/lib/api.ts

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+import axios from "axios"
+
+const API_BASE_URL = process.env.NEXT_PUBLIC_BACKEND_URL || "http://127.0.0.1:5000"
+
+const api = axios.create({
+  baseURL: API_BASE_URL,
+  headers: {
+    "Content-Type": "application/json",
+  },
+})
+
+api.interceptors.request.use(
+  (config) => {
+    const token = localStorage.getItem("openlearnx_jwt_token")
+    if (token) {
+      config.headers.Authorization = `Bearer ${token}`
+    }
+    return config
+  },
+  (error) => {
+    return Promise.reject(error)
+  },
+)
+
+export default api

frontend/lib/firebase.ts

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+// lib/firebase.ts
+import { initializeApp, getApps, getApp } from "firebase/app"
+import { getAuth } from "firebase/auth"
+// import { getAnalytics } from "firebase/analytics"; // Analytics can be initialized if needed
+
+const firebaseConfig = {
+  apiKey: "AIzaSyB0srpcLeNF8nR6DF_fP7_FsemKY4--4wU",
+  authDomain: "nexulen-f8790.firebaseapp.com",
+  projectId: "nexulen-f8790",
+  storageBucket: "nexulen-f8790.firebasestorage.app",
+  messagingSenderId: "718749886008",
+  appId: "1:718749886008:web:df0563c31aaff0c2e628cd",
+  measurementId: "G-D7B9CCNQ2G",
+}
+
+// Initialize Firebase
+const app = !getApps().length ? initializeApp(firebaseConfig) : getApp()
+const auth = getAuth(app)
+// const analytics = getAnalytics(app); // Uncomment if you need analytics
+
+export { app, auth }

frontend/lib/types.ts

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+export interface AuthNonceRequest {
+  wallet_address: string
+}
+
+export interface AuthNonceResponse {
+  nonce: string
+  message: string
+}
+
+export interface AuthVerifyRequest {
+  wallet_address: string
+  signature: string
+  message: string
+}
+
+export interface AuthVerifyResponse {
+  success: boolean
+  token: string
+  user: {
+    wallet_address: string
+    // Add other user details if available from your backend
+  }
+}
+
+export interface QuestionOption {
+  id: string
+  text: string
+}
+
+export interface Question {
+  id: string
+  text: string
+  options: QuestionOption[]
+  type: string // e.g., "multiple_choice"
+}
+
+export interface TestStartRequest {
+  subject: string
+}
+
+export interface TestStartResponse {
+  session_id: string
+  question: Question
+  question_number: number
+  total_questions: number
+}
+
+export interface Feedback {
+  correct: boolean
+  confidence_score: number
+  explanation: string
+  correct_answer?: string // Optional, if backend provides it
+}
+
+export interface TestAnswerRequest {
+  session_id: string
+  question_id: string
+  answer: number // Index of the selected option
+}
+
+export interface TestAnswerResponse {
+  feedback: Feedback
+  next_question: Question | null
+  test_completed: boolean
+}
+
+export interface User {
+  wallet_address: string
+  // Add other user details
+}
+
+// New types for Course Platform
+export interface Lesson {
+  id: string
+  title: string
+  type: "video" | "text" | "code" | "quiz"
+  content: string // URL for video, markdown for text, code snippet for code
+  completed: boolean
+}
+
+export interface Module {
+  id: string
+  title: string
+  lessons: Lesson[]
+}
+
+export interface Course {
+  id: string
+  title: string
+  subject: string
+  description: string
+  progress: number // 0-100
+  modules: Module[]
+}
+
+// New types for Coding Platform
+export interface CodingProblem {
+  id: string
+  title: string
+  category: string
+  difficulty: "Easy" | "Medium" | "Hard"
+  description: string
+  initial_code: { [key: string]: string } // e.g., { "python": "def solve():\n  pass" }
+  test_cases: { input: string; expected_output: string }[]
+  solved: boolean
+}
+
+export interface CodeExecutionResult {
+  output: string
+  error: string | null
+  runtime: number
+  correct: boolean
+}
+
+// New types for Quiz Platform (reusing existing Test types)
+export interface Quiz {
+  id: string
+  title: string
+  topic: string
+  difficulty: "Easy" | "Medium" | "Hard"
+  recent_performance?: number // 0-100
+}
+
+export interface QuizResult {
+  score: number
+  total_questions: number
+  correct_answers: number
+  per_question_breakdown: {
+    question_id: string
+    correct: boolean
+    explanation: string
+    user_answer: string
+    correct_answer: string
+  }[]
+}
+
+// New types for Dashboard
+export interface DashboardStats {
+  total_xp: number
+  courses_in_progress: number
+  courses_completed: number
+  coding_problems_solved: number
+  quiz_accuracy: number // overall average
+  coding_streak: number
+}
+
+export interface ActivityData {
+  date: string // YYYY-MM-DD
+  count: number // Number of activities
+}

frontend/lib/utils.ts

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+import { clsx, type ClassValue } from "clsx"
+import { twMerge } from "tailwind-merge"
+
+export function cn(...inputs: ClassValue[]) {
+  return twMerge(clsx(inputs))
+}