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271
frontend/src/App.jsx
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271
frontend/src/App.jsx
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import React, { useEffect, useMemo, useRef, useState } from 'react'
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const API_BASE = '/api'
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function Avatar({ speaking }) {
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return (
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<div className="avatar-shell">
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<div className={`avatar ${speaking ? 'speaking' : ''}`}>
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<div className="face">
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<div className="eyes">
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<span />
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<span />
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</div>
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<div className={`mouth ${speaking ? 'mouth-speaking' : ''}`} />
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</div>
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</div>
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<div className="avatar-caption">ProfAmi</div>
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</div>
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)
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}
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function ProgressCard({ item }) {
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const pct = Math.round(item.mastery_score)
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return (
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<div className="progress-card">
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<div className="progress-head">
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<strong>{item.label}</strong>
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<span>{pct}%</span>
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</div>
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<div className="progress-bar">
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<div className="progress-fill" style={{ width: `${pct}%` }} />
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</div>
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<small>{item.subject} · preuves: {item.evidence_count}</small>
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</div>
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)
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}
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export default function App() {
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const [students, setStudents] = useState([])
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const [selectedStudentId, setSelectedStudentId] = useState('')
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const [form, setForm] = useState({ first_name: '', age: 8, grade: 'CM1' })
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const [messages, setMessages] = useState([])
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const [input, setInput] = useState('')
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const [progress, setProgress] = useState([])
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const [assessment, setAssessment] = useState(null)
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const [assessmentAnswer, setAssessmentAnswer] = useState('')
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const [speaking, setSpeaking] = useState(false)
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const recognitionRef = useRef(null)
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const selectedStudent = useMemo(
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() => students.find((s) => String(s.id) === String(selectedStudentId)),
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[students, selectedStudentId]
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)
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useEffect(() => {
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loadStudents()
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}, [])
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useEffect(() => {
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if (selectedStudentId) {
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loadProgress(selectedStudentId)
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}
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}, [selectedStudentId])
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async function loadStudents() {
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const res = await fetch(`${API_BASE}/students`)
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const data = await res.json()
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setStudents(data)
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if (data.length && !selectedStudentId) {
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setSelectedStudentId(String(data[0].id))
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}
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}
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async function createStudent(e) {
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e.preventDefault()
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const res = await fetch(`${API_BASE}/students`, {
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method: 'POST',
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headers: { 'Content-Type': 'application/json' },
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body: JSON.stringify({ ...form, age: Number(form.age) }),
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})
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const data = await res.json()
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await loadStudents()
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setSelectedStudentId(String(data.id))
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}
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async function startSession() {
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if (!selectedStudentId) return
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const res = await fetch(`${API_BASE}/session/start?student_id=${selectedStudentId}`, { method: 'POST' })
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const data = await res.json()
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appendMessage('assistant', data.reply)
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speak(data.reply)
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await loadProgress(selectedStudentId)
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}
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function appendMessage(role, content) {
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setMessages((prev) => [...prev, { role, content, id: crypto.randomUUID() }])
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}
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async function sendMessage(e) {
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e.preventDefault()
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if (!selectedStudentId || !input.trim()) return
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const text = input.trim()
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appendMessage('user', text)
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setInput('')
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const res = await fetch(`${API_BASE}/chat`, {
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method: 'POST',
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headers: { 'Content-Type': 'application/json' },
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body: JSON.stringify({ student_id: Number(selectedStudentId), message: text }),
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})
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const data = await res.json()
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appendMessage('assistant', data.reply)
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speak(data.reply)
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}
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async function loadProgress(studentId) {
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const res = await fetch(`${API_BASE}/progress/${studentId}`)
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const data = await res.json()
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setProgress(data.progress || [])
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}
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async function fetchAssessment() {
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if (!selectedStudentId) return
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const res = await fetch(`${API_BASE}/assessment/next/${selectedStudentId}`)
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const data = await res.json()
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setAssessment(data)
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setAssessmentAnswer('')
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}
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async function submitAssessment(e) {
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e.preventDefault()
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if (!assessment || !assessmentAnswer.trim()) return
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const res = await fetch(`${API_BASE}/assessment/answer`, {
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method: 'POST',
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headers: { 'Content-Type': 'application/json' },
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body: JSON.stringify({
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student_id: Number(selectedStudentId),
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skill_code: assessment.skill_code,
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answer: assessmentAnswer,
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}),
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})
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const data = await res.json()
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appendMessage('assistant', `Quiz: ${data.feedback}`)
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speak(data.feedback)
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setAssessment(null)
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setAssessmentAnswer('')
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await loadProgress(selectedStudentId)
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}
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function speak(text) {
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if (!('speechSynthesis' in window)) return
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window.speechSynthesis.cancel()
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const utterance = new SpeechSynthesisUtterance(text)
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utterance.lang = 'fr-FR'
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utterance.onstart = () => setSpeaking(true)
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utterance.onend = () => setSpeaking(false)
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utterance.onerror = () => setSpeaking(false)
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window.speechSynthesis.speak(utterance)
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}
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function startVoiceInput() {
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const Recognition = window.SpeechRecognition || window.webkitSpeechRecognition
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if (!Recognition) {
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alert('La reconnaissance vocale du navigateur n\'est pas disponible ici.')
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return
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}
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const recognition = new Recognition()
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recognition.lang = 'fr-FR'
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recognition.interimResults = false
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recognition.maxAlternatives = 1
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recognition.onresult = (event) => {
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const transcript = event.results[0][0].transcript
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setInput(transcript)
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}
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recognition.onerror = () => {}
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recognitionRef.current = recognition
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recognition.start()
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}
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return (
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<div className="layout">
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<aside className="sidebar card">
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<h2>Élève</h2>
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<select value={selectedStudentId} onChange={(e) => setSelectedStudentId(e.target.value)}>
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<option value="">Choisir un élève</option>
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{students.map((student) => (
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<option key={student.id} value={student.id}>
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{student.first_name} · {student.grade}
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</option>
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))}
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</select>
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<form onSubmit={createStudent} className="stack">
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<input
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placeholder="Prénom"
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value={form.first_name}
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onChange={(e) => setForm({ ...form, first_name: e.target.value })}
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/>
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<input
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type="number"
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min="8"
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max="12"
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value={form.age}
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onChange={(e) => setForm({ ...form, age: e.target.value })}
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/>
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<select value={form.grade} onChange={(e) => setForm({ ...form, grade: e.target.value })}>
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<option>CE2</option>
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<option>CM1</option>
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<option>CM2</option>
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<option>6e</option>
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</select>
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<button type="submit">Créer un élève</button>
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</form>
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<button onClick={startSession} disabled={!selectedStudentId}>Démarrer la séance</button>
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<button onClick={fetchAssessment} disabled={!selectedStudentId}>Lancer un mini-test</button>
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<h3>Progression</h3>
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<div className="stack small-gap">
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{progress.map((item) => <ProgressCard key={item.code} item={item} />)}
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</div>
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</aside>
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<main className="main card">
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<div className="hero">
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<Avatar speaking={speaking} />
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<div>
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<h1>Professeur virtuel</h1>
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<p>
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{selectedStudent
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? `Séance active pour ${selectedStudent.first_name}, ${selectedStudent.grade}`
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: 'Choisis ou crée un élève pour commencer.'}
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</p>
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</div>
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</div>
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<section className="messages">
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{messages.length === 0 && <p className="muted">Le dialogue apparaîtra ici.</p>}
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{messages.map((message) => (
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<div key={message.id} className={`message ${message.role}`}>
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<strong>{message.role === 'assistant' ? 'ProfAmi' : 'Élève'}</strong>
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<p>{message.content}</p>
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</div>
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))}
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</section>
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{assessment && (
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<form className="assessment" onSubmit={submitAssessment}>
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<h3>Mini-test · {assessment.skill_label}</h3>
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<p>{assessment.question}</p>
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<input
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value={assessmentAnswer}
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onChange={(e) => setAssessmentAnswer(e.target.value)}
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placeholder="Ta réponse"
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/>
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<button type="submit">Valider</button>
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</form>
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)}
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<form onSubmit={sendMessage} className="composer">
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<input
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value={input}
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onChange={(e) => setInput(e.target.value)}
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placeholder="Pose une question ou demande une explication..."
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/>
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<button type="button" onClick={startVoiceInput}>🎤 Dicter</button>
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<button type="submit">Envoyer</button>
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</form>
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</main>
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</div>
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)
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}
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