feat: POST /corrections/ee — DeepSeek rapport complet — 73/73 tests
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91
src/lib/deepseek.ts
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91
src/lib/deepseek.ts
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const DEEPSEEK_API_KEY = process.env.DEEPSEEK_API_KEY ?? ''
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const DEEPSEEK_BASE_URL = 'https://api.deepseek.com'
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export interface EECritere {
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nom: string
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score: number
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commentaire: string
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}
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export interface EERapport {
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score: number
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nclc: number
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criteres: EECritere[]
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erreurs: string[]
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production_modele: string
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suggestions_idees: string[]
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exercices: string[]
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}
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const SYSTEM_PROMPT = `Tu es un examinateur officiel du TCF Canada (Test de connaissance du français).
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Tu évalues une production écrite selon les 4 critères officiels de l'Expression Écrite :
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1. Cohérence et cohésion
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2. Lexique (étendue et maîtrise du vocabulaire)
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3. Morphosyntaxe (grammaire et structures)
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4. Pertinence (adéquation à la consigne)
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Tu dois retourner un JSON strict avec cette structure exacte :
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{
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"score": <number 0-20>,
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"nclc": <number 4-12>,
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"criteres": [
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{ "nom": "Cohérence et cohésion", "score": <number 0-5>, "commentaire": "<string>" },
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{ "nom": "Lexique", "score": <number 0-5>, "commentaire": "<string>" },
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{ "nom": "Morphosyntaxe", "score": <number 0-5>, "commentaire": "<string>" },
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{ "nom": "Pertinence", "score": <number 0-5>, "commentaire": "<string>" }
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],
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"erreurs": ["<erreur 1>", "<erreur 2>", ...],
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"production_modele": "<texte modèle corrigé>",
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"suggestions_idees": ["<idée 1>", "<idée 2>", ...],
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"exercices": ["<exercice recommandé 1>", "<exercice recommandé 2>", ...]
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}
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Règles :
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- score est la note globale sur 20
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- nclc est le niveau NCLC estimé (entre 4 et 12)
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- Chaque critère a un score de 0 à 5
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- Retourne UNIQUEMENT le JSON, sans texte avant ni après`
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export async function correctEE(contenu: string, tache: string): Promise<EERapport> {
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const response = await fetch(`${DEEPSEEK_BASE_URL}/chat/completions`, {
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method: 'POST',
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headers: {
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'Content-Type': 'application/json',
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Authorization: `Bearer ${DEEPSEEK_API_KEY}`,
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},
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body: JSON.stringify({
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model: 'deepseek-chat',
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messages: [
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{ role: 'system', content: SYSTEM_PROMPT },
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{
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role: 'user',
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content: `Tâche : ${tache}\n\nProduction de l'étudiant :\n${contenu}`,
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},
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],
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temperature: 0.3,
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response_format: { type: 'json_object' },
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}),
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})
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if (!response.ok) {
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throw new Error(`DeepSeek API error: ${response.status} ${response.statusText}`)
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}
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const data = await response.json()
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const content = data.choices?.[0]?.message?.content
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if (!content) {
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throw new Error('DeepSeek API: réponse vide')
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}
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const rapport: EERapport = JSON.parse(content)
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if (rapport.score < 0 || rapport.score > 20) {
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throw new Error(`Score invalide: ${rapport.score} (attendu 0-20)`)
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}
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if (rapport.nclc < 4 || rapport.nclc > 12) {
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throw new Error(`NCLC invalide: ${rapport.nclc} (attendu 4-12)`)
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}
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return rapport
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}
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