Initial commit: Premier Gunner tracker + StartOS 0.4.0 s9pk package

src/routes/stats.js

@@ -0,0 +1,93 @@
+import { db } from '../db.js';
+
+function todayISO() {
+  return new Date().toISOString().slice(0, 10);
+}
+
+function goalProgress(goal) {
+  let current = 0;
+  if (goal.kind === 'session_count') {
+    current = goal.scope === 'overall'
+      ? db.prepare('SELECT COUNT(*) AS n FROM entries').get().n
+      : db.prepare('SELECT COUNT(*) AS n FROM entries WHERE category_id = ?').get(goal.category_id).n;
+  } else if (goal.kind === 'metric_best' && goal.metric_id) {
+    current = db.prepare('SELECT COALESCE(MAX(value), 0) AS v FROM entry_values WHERE metric_id = ?')
+      .get(goal.metric_id).v;
+  } else if (goal.kind === 'metric_total' && goal.metric_id) {
+    current = db.prepare('SELECT COALESCE(SUM(value), 0) AS v FROM entry_values WHERE metric_id = ?')
+      .get(goal.metric_id).v;
+  }
+  const pct = goal.target > 0 ? Math.min(100, Math.round((current / goal.target) * 100)) : 0;
+  return { ...goal, current, pct };
+}
+
+function streaks(days) {
+  // days: ISO strings sorted ascending, distinct
+  if (!days.length) return { current: 0, longest: 0 };
+  const set = new Set(days);
+  let longest = 0;
+  for (const d of days) {
+    const prev = new Date(d); prev.setDate(prev.getDate() - 1);
+    if (!set.has(prev.toISOString().slice(0, 10))) {
+      // start of a run
+      let len = 0; const cur = new Date(d);
+      while (set.has(cur.toISOString().slice(0, 10))) { len++; cur.setDate(cur.getDate() + 1); }
+      if (len > longest) longest = len;
+    }
+  }
+  // current streak ending today or yesterday
+  let current = 0; const cur = new Date(todayISO());
+  if (!set.has(cur.toISOString().slice(0, 10))) cur.setDate(cur.getDate() - 1);
+  while (set.has(cur.toISOString().slice(0, 10))) { current++; cur.setDate(cur.getDate() - 1); }
+  return { current, longest };
+}
+
+export default async function statsRoutes(app) {
+  app.get('/api/stats', async () => {
+    const totalSessions = db.prepare('SELECT COUNT(*) AS n FROM entries').get().n;
+    const dayRows = db.prepare('SELECT DISTINCT day FROM entries ORDER BY day').all().map((r) => r.day);
+    const totalDays = dayRows.length;
+
+    // Heatmap: entries per day.
+    const heatmap = db.prepare(
+      'SELECT day, COUNT(*) AS count FROM entries GROUP BY day ORDER BY day'
+    ).all();
+
+    // Radar: sessions per category (all-time + last 30 days).
+    const since = new Date(); since.setDate(since.getDate() - 30);
+    const since30 = since.toISOString().slice(0, 10);
+    const radar = db.prepare(
+      `SELECT c.id AS category_id, c.name, c.emoji, c.color,
+              COUNT(e.id) AS sessions,
+              SUM(CASE WHEN e.day >= ? THEN 1 ELSE 0 END) AS sessions30
+         FROM categories c LEFT JOIN entries e ON e.category_id = c.id
+        WHERE c.archived = 0
+        GROUP BY c.id ORDER BY c.sort_order, c.id`
+    ).all(since30);
+
+    // Per-metric time series for line charts.
+    const seriesRows = db.prepare(
+      `SELECT ev.metric_id, e.day, ev.value, e.id AS entry_id
+         FROM entry_values ev JOIN entries e ON e.id = ev.entry_id
+        ORDER BY e.day, e.id`
+    ).all();
+    const series = {};
+    for (const r of seriesRows) {
+      (series[r.metric_id] ||= []).push({ day: r.day, value: r.value, entry_id: r.entry_id });
+    }
+
+    const goals = db.prepare('SELECT * FROM goals ORDER BY is_main DESC, sort_order, id').all()
+      .map(goalProgress);
+
+    return {
+      totalSessions,
+      totalDays,
+      ...streaks(dayRows),
+      today: todayISO(),
+      heatmap,
+      radar,
+      series,
+      goals,
+    };
+  });
+}