LearnSpace: full-stack educational whiteboard platform
Node.js/Express backend + vanilla JS frontend. Features: real-time collaborative whiteboard (SSE), multi-page support, LaTeX formulas, shapes/connectors, coordinate systems, number lines, compass, zoom/pan, Catmull-Rom pencil smoothing, ruler/protractor with rotation & resize controls, minimap navigation overlay, auto-measurements, multi-page thumbnails sidebar, PNG export, page templates. Student/teacher workflows: classes, assignments, library, dashboard. Mobile responsive. SQLite (better-sqlite3). Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Maxim Dolgolyov
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'use strict';
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const db = require('../db/db');
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const { awardCoins } = require('./gamificationController');
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// Incremental migrations
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try { db.exec("ALTER TABLE users ADD COLUMN pet_name TEXT"); } catch {}
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try { db.exec("ALTER TABLE users ADD COLUMN pet_color TEXT DEFAULT 'purple'"); } catch {}
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try { db.exec("ALTER TABLE users ADD COLUMN pet_last_petted TEXT"); } catch {}
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try { db.exec("ALTER TABLE users ADD COLUMN pet_petting_streak INT DEFAULT 0"); } catch {}
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try { db.exec("ALTER TABLE users ADD COLUMN pet_last_star TEXT"); } catch {}
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try { db.exec("ALTER TABLE users ADD COLUMN pet_bg TEXT DEFAULT 'default'"); } catch {}
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try { db.exec("ALTER TABLE users ADD COLUMN pet_bg_owned TEXT DEFAULT '[]'"); } catch {}
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try { db.exec("ALTER TABLE users ADD COLUMN pet_last_fed TEXT"); } catch {}
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const BG_SHOP = [
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{ id:'space', name:'Космос', price:50, desc:'Звёздный простор' },
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{ id:'forest', name:'Лес', price:50, desc:'Таинственный лес' },
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{ id:'aqua', name:'Океан', price:75, desc:'Морская глубина' },
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{ id:'sunset', name:'Закат', price:75, desc:'Пурпурный закат' },
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];
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function _parseOwned(raw) {
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try { return JSON.parse(raw || '[]'); } catch { return []; }
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}
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function _petLevel(xp) {
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if (xp >= 80000) return 8;
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if (xp >= 40000) return 7;
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if (xp >= 20000) return 6;
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if (xp >= 10000) return 5;
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if (xp >= 5000) return 4;
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if (xp >= 2000) return 3;
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if (xp >= 500) return 2;
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return 1;
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}
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function _mood(streak, daysSinceLogin) {
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if (daysSinceLogin >= 14) return 'sleeping';
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if (daysSinceLogin >= 7) return 'hungry';
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if (daysSinceLogin >= 3) return 'sad';
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if (streak >= 7) return 'ecstatic';
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if (streak >= 3) return 'happy';
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if (streak >= 1) return 'neutral';
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return 'sad';
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}
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function _accessories(user) {
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const acc = [];
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if (user.streak_best >= 7) acc.push('hat');
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if (user.level >= 5) acc.push('glasses');
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if (user.xp >= 5000) acc.push('crown');
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if (user.level >= 10) acc.push('star');
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return acc;
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}
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function _quests(userId, streakCurrent) {
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const today = new Date().toISOString().slice(0, 10);
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const xpToday = db.prepare(
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"SELECT COALESCE(SUM(amount),0) AS total FROM xp_log WHERE user_id=? AND date(created_at)=date(?)"
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).get(userId, today)?.total || 0;
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const testsToday = db.prepare(
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"SELECT COUNT(*) AS cnt FROM test_sessions WHERE user_id=? AND status='completed' AND date(finished_at)=date(?)"
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).get(userId, today)?.cnt || 0;
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return [
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{ id:'xp30', icon:'⭐', label:'Набери 30 XP сегодня', done: xpToday >= 30, progress: Math.min(xpToday, 30), goal: 30 },
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{ id:'test1', icon:'📝', label:'Пройди 1 тест', done: testsToday >= 1, progress: Math.min(testsToday, 1), goal: 1 },
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{ id:'streak2', icon:'🔥', label:'Серия 2+ дней', done: streakCurrent >= 2 },
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];
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}
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function _moodForecast(daysSince) {
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if (daysSince >= 7) return null; // already hungry/sleeping
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if (daysSince >= 3) return { mood: 'hungry', inDays: Math.max(0, 7 - daysSince) };
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const toSad = Math.max(0, 3 - daysSince);
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if (toSad <= 2) return { mood: 'sad', inDays: toSad };
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return null;
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}
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/* ── GET /api/pet ─────────────────────────────────────────────────────── */
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function getPet(req, res) {
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const user = db.prepare(
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`SELECT xp, level, streak_current, streak_best, streak_date, coins,
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pet_name, last_login, pet_color, pet_last_petted, pet_petting_streak,
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pet_bg, pet_bg_owned, pet_last_fed
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FROM users WHERE id = ?`
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).get(req.user.id);
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if (!user) return res.status(404).json({ error: 'User not found' });
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const now = new Date();
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const lastXpRow = db.prepare("SELECT MAX(created_at) AS t FROM xp_log WHERE user_id = ?").get(req.user.id);
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const lastSessRow = db.prepare("SELECT MAX(finished_at) AS t FROM test_sessions WHERE user_id = ? AND status = 'completed'").get(req.user.id);
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const candidates = [
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user.last_login ? new Date(user.last_login) : null,
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lastXpRow?.t ? new Date(lastXpRow.t) : null,
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lastSessRow?.t ? new Date(lastSessRow.t) : null,
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].filter(Boolean);
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const lastActive = candidates.length ? new Date(Math.max(...candidates.map(d => d.getTime()))) : now;
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const daysSince = Math.max(0, Math.floor((now - lastActive) / 86400000));
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const since7 = new Date(now - 7 * 86400000).toISOString();
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const recentXP = db.prepare(
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'SELECT COALESCE(SUM(amount),0) AS total FROM xp_log WHERE user_id = ? AND created_at >= ?'
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).get(req.user.id, since7)?.total || 0;
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const petLvl = _petLevel(user.xp);
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const mood = _mood(user.streak_current, daysSince);
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const accessories = _accessories(user);
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const thresholds = [0, 500, 2000, 5000, 10000, 20000, 40000, 80000, Infinity];
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const xpForNext = thresholds[petLvl] ?? Infinity;
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const xpForCurr = thresholds[petLvl - 1] ?? 0;
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const d0 = new Date(now); d0.setDate(d0.getDate() - 6);
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const weekStart = d0.toISOString().slice(0, 10);
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const weekRows = db.prepare(
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"SELECT date(created_at) AS d, COALESCE(SUM(amount),0) AS xp FROM xp_log WHERE user_id = ? AND date(created_at) >= date(?) GROUP BY date(created_at)"
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).all(req.user.id, weekStart);
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const weekMap = new Map(weekRows.map(r => [r.d, r.xp]));
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const weeklyXP = [];
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for (let i = 6; i >= 0; i--) {
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const d = new Date(now); d.setDate(d.getDate() - i);
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const dateStr = d.toISOString().slice(0, 10);
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weeklyXP.push({ day: d.toLocaleDateString('ru', { weekday: 'short' }), xp: weekMap.get(dateStr) || 0 });
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}
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const SOURCE_LABELS = {
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hangman_win: 'Виселица', crossword_win: 'Кроссворд',
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test_answer: 'Тест', challenge: 'Задание',
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lab_activity: 'Лаборатория', assignment: 'Домашнее задание',
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pet_petting: 'Поглаживание', pet_feeding: 'Кормёжка питомца',
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mood_ecstatic: 'Бонус настроения', correct_answers: 'Тест',
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test_complete: 'Тест', 'test_90+': 'Тест 90%+', test_perfect: 'Тест 100%',
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};
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const rawActivity = db.prepare(
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"SELECT amount, reason, created_at FROM xp_log WHERE user_id = ? ORDER BY created_at DESC LIMIT 6"
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).all(req.user.id);
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const recentActivity = rawActivity.map(r => ({
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xp: r.amount, label: SOURCE_LABELS[r.reason] || r.reason, at: r.created_at,
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}));
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const pettingCooldown = user.pet_last_petted
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? Math.max(0, 60 - Math.floor((now - new Date(user.pet_last_petted)) / 1000))
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: 0;
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const feedCooldown = user.pet_last_fed
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? Math.max(0, 1800 - Math.floor((now - new Date(user.pet_last_fed)) / 1000))
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: 0;
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res.json({
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petName: user.pet_name || 'Квантик',
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petLevel: petLvl,
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petColor: user.pet_color || 'purple',
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mood,
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daysSinceLogin: daysSince,
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accessories,
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xp: user.xp,
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level: user.level,
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streakCurrent: user.streak_current,
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streakBest: user.streak_best,
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coins: user.coins,
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pettingStreak: user.pet_petting_streak || 0,
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recentXP,
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weeklyXP,
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recentActivity,
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xpForCurrLevel: xpForCurr,
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xpForNextLevel: xpForNext === Infinity ? null : xpForNext,
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quests: _quests(req.user.id, user.streak_current),
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moodForecast: _moodForecast(daysSince),
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pettingCooldown,
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feedCooldown,
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petBg: user.pet_bg || 'default',
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petBgOwned: _parseOwned(user.pet_bg_owned),
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});
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}
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/* ── POST /api/pet/pet ────────────────────────────────────────────────── */
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function petAction(req, res) {
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const user = db.prepare('SELECT pet_last_petted, pet_petting_streak FROM users WHERE id=?').get(req.user.id);
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if (!user) return res.status(404).json({ error: 'not found' });
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const now = new Date();
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if (user.pet_last_petted) {
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const diff = (now - new Date(user.pet_last_petted)) / 1000;
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if (diff < 60) return res.status(429).json({ error: 'cooldown', remaining: Math.ceil(60 - diff) });
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}
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const today = now.toISOString().slice(0, 10);
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const yesterday = new Date(now - 86400000).toISOString().slice(0, 10);
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let streak = user.pet_petting_streak || 0;
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if (user.pet_last_petted) {
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const lastDate = user.pet_last_petted.slice(0, 10);
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if (lastDate === today) { /* same day, keep */ }
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else if (lastDate === yesterday) streak++;
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else streak = 1;
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} else {
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streak = 1;
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}
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try { awardCoins(req.user.id, 2, 'pet_petting'); } catch {}
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db.prepare('UPDATE users SET pet_last_petted=?, pet_petting_streak=? WHERE id=?')
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.run(now.toISOString(), streak, req.user.id);
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res.json({ ok: true, coins: 2, pettingStreak: streak });
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}
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/* ── PATCH /api/pet/name ──────────────────────────────────────────────── */
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function renamePet(req, res) {
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let { name } = req.body;
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if (!name || typeof name !== 'string') return res.status(400).json({ error: 'name required' });
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name = name.trim().slice(0, 24);
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if (!name) return res.status(400).json({ error: 'name required' });
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db.prepare('UPDATE users SET pet_name = ? WHERE id = ?').run(name, req.user.id);
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res.json({ ok: true, name });
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}
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/* ── PATCH /api/pet/color ─────────────────────────────────────────────── */
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function updateColor(req, res) {
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const { color } = req.body;
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const VALID = ['purple', 'cyan', 'gold', 'red', 'green', 'blue'];
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if (!VALID.includes(color)) return res.status(400).json({ error: 'invalid color' });
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db.prepare('UPDATE users SET pet_color = ? WHERE id = ?').run(color, req.user.id);
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res.json({ ok: true, color });
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}
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/* ── GET /api/pet/shop ────────────────────────────────────────────────── */
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function getShop(req, res) {
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const user = db.prepare('SELECT coins, pet_bg, pet_bg_owned FROM users WHERE id=?').get(req.user.id);
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if (!user) return res.status(404).json({ error: 'not found' });
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const owned = _parseOwned(user.pet_bg_owned);
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res.json({
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coins: user.coins || 0,
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currentBg: user.pet_bg || 'default',
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items: BG_SHOP.map(item => ({ ...item, owned: owned.includes(item.id) })),
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});
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}
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/* ── POST /api/pet/shop/buy ───────────────────────────────────────────── */
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function buyBg(req, res) {
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const { id } = req.body;
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const item = BG_SHOP.find(b => b.id === id);
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if (!item) return res.status(400).json({ error: 'invalid item' });
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const user = db.prepare('SELECT coins, pet_bg_owned FROM users WHERE id=?').get(req.user.id);
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if (!user) return res.status(404).json({ error: 'not found' });
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const owned = _parseOwned(user.pet_bg_owned);
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if (!owned.includes(id)) {
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if ((user.coins || 0) < item.price) return res.status(400).json({ error: 'insufficient_coins' });
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db.prepare('UPDATE users SET coins=coins-?, pet_bg_owned=?, pet_bg=? WHERE id=?')
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.run(item.price, JSON.stringify([...owned, id]), id, req.user.id);
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} else {
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db.prepare('UPDATE users SET pet_bg=? WHERE id=?').run(id, req.user.id);
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}
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const updated = db.prepare('SELECT coins FROM users WHERE id=?').get(req.user.id);
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res.json({ ok: true, bg: id, coins: updated.coins });
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}
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/* ── PATCH /api/pet/bg ────────────────────────────────────────────────── */
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function setBg(req, res) {
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const { id } = req.body;
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if (id !== 'default') {
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const owned = _parseOwned(db.prepare('SELECT pet_bg_owned FROM users WHERE id=?').get(req.user.id)?.pet_bg_owned);
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if (!owned.includes(id)) return res.status(403).json({ error: 'not owned' });
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}
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db.prepare('UPDATE users SET pet_bg=? WHERE id=?').run(id, req.user.id);
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res.json({ ok: true, bg: id });
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}
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/* ── POST /api/pet/star ───────────────────────────────────────────────── */
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function starCatch(req, res) {
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const user = db.prepare('SELECT pet_last_star FROM users WHERE id=?').get(req.user.id);
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if (!user) return res.status(404).json({ error: 'not found' });
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const now = new Date();
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if (user.pet_last_star) {
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const diff = (now - new Date(user.pet_last_star)) / 1000;
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if (diff < 3600) return res.status(429).json({ error: 'cooldown', remaining: Math.ceil(3600 - diff) });
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}
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try { awardCoins(req.user.id, 5, 'star_catch'); } catch {}
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db.prepare('UPDATE users SET pet_last_star=? WHERE id=?').run(now.toISOString(), req.user.id);
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res.json({ ok: true, coins: 5 });
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}
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/* ── POST /api/pet/feed ───────────────────────────────────────────────── */
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// Called when mini-game "feed pet" is correctly answered on frontend.
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// 30-minute cooldown; awards 15 XP + marks pet as fed.
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function feedPet(req, res) {
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const user = db.prepare('SELECT pet_last_fed FROM users WHERE id=?').get(req.user.id);
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if (!user) return res.status(404).json({ error: 'not found' });
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const now = new Date();
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const COOLDOWN_SEC = 1800; // 30 minutes
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if (user.pet_last_fed) {
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const diff = (now - new Date(user.pet_last_fed)) / 1000;
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if (diff < COOLDOWN_SEC) {
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return res.status(429).json({ error: 'cooldown', remaining: Math.ceil(COOLDOWN_SEC - diff) });
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}
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}
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try {
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const { awardXP } = require('./gamificationController');
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awardXP(req.user.id, 15, 'pet_feeding');
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} catch (e) { console.error('[feedPet] awardXP:', e.message); }
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db.prepare('UPDATE users SET pet_last_fed=? WHERE id=?').run(now.toISOString(), req.user.id);
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const updated = db.prepare('SELECT xp, coins FROM users WHERE id=?').get(req.user.id);
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res.json({ ok: true, xpAwarded: 15, xp: updated.xp, coins: updated.coins });
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}
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module.exports = { getPet, renamePet, petAction, updateColor, starCatch, getShop, buyBg, setBg, feedPet };
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Reference in New Issue
Block a user