feat(admin): per-player stats drill-down from admin panel
This commit is contained in:
Jaume Garriga Maestre
194
server.js
194
server.js
@@ -174,93 +174,121 @@ app.post('/api/players', async (req, res) => {
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}
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});
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/**
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* Fetch full stats for a player by id.
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* Shared between the player-facing and admin endpoints to avoid code duplication.
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* @param {number|string} playerId
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* @returns {Promise<Object>} Stats payload (player, levelStats, hardComarques, groupStats, …)
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* @throws {Error} with .status = 404 if player not found
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*/
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async function getPlayerFullStats(playerId) {
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const playerRes = await pool.query(
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'SELECT id, name, avatar, created_at FROM players WHERE id = $1',
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[playerId]
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);
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if (!playerRes.rows.length) {
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const err = new Error('Jugador no trobat');
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err.status = 404;
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throw err;
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}
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const player = playerRes.rows[0];
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// All sessions for this player (include created_at for streak + evolution)
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const sessionRes = await pool.query(
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`SELECT level, score, total, stars, duration_seconds, created_at
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FROM sessions WHERE player_id = $1 ORDER BY created_at DESC`,
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[playerId]
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);
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const sessions = sessionRes.rows;
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// Aggregate scalars
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const totalStars = sessions.reduce((s, r) => s + r.stars, 0);
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const totalSessions = sessions.length;
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const totalSeconds = sessions.reduce((s, r) => s + (r.duration_seconds || 0), 0);
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const currentStreak = calcStreak(sessions);
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// Level breakdown (levels 1–8, best + avg + evolution)
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const levelStats = buildLevelStats(sessions);
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// Recent 10 sessions
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const recent = sessions.slice(0, 10).map(s => ({
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level: s.level, score: s.score, total: s.total,
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stars: s.stars, date: s.created_at,
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}));
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// Hard comarques: top 5 by error rate (min 3 attempts)
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const hardRes = await pool.query(
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`SELECT comarca_name,
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COUNT(*)::int AS attempts,
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SUM(CASE WHEN correct = false THEN 1 ELSE 0 END)::int AS wrong
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FROM session_answers
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JOIN sessions ON sessions.id = session_answers.session_id
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WHERE sessions.player_id = $1
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GROUP BY comarca_name
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HAVING COUNT(*) >= 3
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ORDER BY (SUM(CASE WHEN correct = false THEN 1 ELSE 0 END)::float / COUNT(*)) DESC
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LIMIT 5`,
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[playerId]
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);
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const hardComarques = hardRes.rows.map(r => ({
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comarca: r.comarca_name,
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attempts: r.attempts,
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wrong: r.wrong,
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errorRate: Math.round(r.wrong / r.attempts * 100),
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}));
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// Group performance (exclude 'all' entries, exclude null)
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const groupRes = await pool.query(
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`SELECT filter_group,
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COUNT(*)::int AS sessions,
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ROUND(AVG(score::float / total * 100))::int AS avg_pct
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FROM sessions
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WHERE player_id = $1
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AND filter_group IS NOT NULL
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AND filter_group != 'all'
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AND total > 0
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GROUP BY filter_group`,
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[playerId]
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);
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const groupStats = {};
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for (const r of groupRes.rows) {
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groupStats[r.filter_group] = { sessions: r.sessions, avgPct: r.avg_pct };
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}
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return {
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player,
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totalStars,
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totalSessions,
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totalSeconds,
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currentStreak,
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levelStats,
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hardComarques,
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groupStats,
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recent,
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};
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}
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// GET /api/players/:id/stats — full stats including streak, hardComarques, groupStats
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app.get('/api/players/:id/stats', async (req, res) => {
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try {
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const playerRes = await pool.query(
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'SELECT id, name, avatar, created_at FROM players WHERE id = $1',
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[req.params.id]
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);
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if (!playerRes.rows.length) {
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return res.status(404).json({ error: 'Jugador no trobat' });
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}
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const player = playerRes.rows[0];
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// All sessions for this player (include created_at for streak + evolution)
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const sessionRes = await pool.query(
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`SELECT level, score, total, stars, duration_seconds, created_at
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FROM sessions WHERE player_id = $1 ORDER BY created_at DESC`,
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[req.params.id]
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);
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const sessions = sessionRes.rows;
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// Aggregate scalars
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const totalStars = sessions.reduce((s, r) => s + r.stars, 0);
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const totalSessions = sessions.length;
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const totalSeconds = sessions.reduce((s, r) => s + (r.duration_seconds || 0), 0);
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const currentStreak = calcStreak(sessions);
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// Level breakdown (levels 1–8, best + avg + evolution)
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const levelStats = buildLevelStats(sessions);
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// Recent 10 sessions
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const recent = sessions.slice(0, 10).map(s => ({
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level: s.level, score: s.score, total: s.total,
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stars: s.stars, date: s.created_at,
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}));
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// Hard comarques: top 5 by error rate (min 3 attempts)
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const hardRes = await pool.query(
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`SELECT comarca_name,
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COUNT(*)::int AS attempts,
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SUM(CASE WHEN correct = false THEN 1 ELSE 0 END)::int AS wrong
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FROM session_answers
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JOIN sessions ON sessions.id = session_answers.session_id
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WHERE sessions.player_id = $1
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GROUP BY comarca_name
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HAVING COUNT(*) >= 3
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ORDER BY (SUM(CASE WHEN correct = false THEN 1 ELSE 0 END)::float / COUNT(*)) DESC
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LIMIT 5`,
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[req.params.id]
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);
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const hardComarques = hardRes.rows.map(r => ({
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comarca: r.comarca_name,
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attempts: r.attempts,
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wrong: r.wrong,
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errorRate: Math.round(r.wrong / r.attempts * 100),
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}));
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// Group performance (exclude 'all' entries, exclude null)
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const groupRes = await pool.query(
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`SELECT filter_group,
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COUNT(*)::int AS sessions,
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ROUND(AVG(score::float / total * 100))::int AS avg_pct
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FROM sessions
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WHERE player_id = $1
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AND filter_group IS NOT NULL
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AND filter_group != 'all'
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AND total > 0
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GROUP BY filter_group`,
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[req.params.id]
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);
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const groupStats = {};
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for (const r of groupRes.rows) {
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groupStats[r.filter_group] = { sessions: r.sessions, avgPct: r.avg_pct };
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}
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res.json({
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player,
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totalStars,
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totalSessions,
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totalSeconds,
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currentStreak,
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levelStats,
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hardComarques,
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groupStats,
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recent,
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});
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const data = await getPlayerFullStats(req.params.id);
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res.json(data);
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} catch (err) {
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res.status(500).json({ error: err.message });
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res.status(err.status || 500).json({ error: err.message });
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}
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});
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// GET /api/admin/player/:id/stats Header: x-admin-pin
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// Returns the same full stats payload as /api/players/:id/stats but requires admin PIN.
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app.get('/api/admin/player/:id/stats', async (req, res) => {
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if (req.headers['x-admin-pin'] !== ADMIN_PIN) {
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return res.status(401).json({ error: 'PIN incorrecte' });
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}
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try {
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const data = await getPlayerFullStats(req.params.id);
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res.json(data);
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} catch (err) {
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res.status(err.status || 500).json({ error: err.message });
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}
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});
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