Sessions 5-7a: 955 tests, deployment ready

src/services/content/gradeOfTheDay.js

@@ -0,0 +1,65 @@
+/**
+ * Grade of the Day selector — runs daily ~5:15 PM ET.
+ *
+ * Rules:
+ *   1. Use an A+ if one exists tonight.
+ *   2. Otherwise the single highest-confidence A or A-.
+ *   3. Otherwise fall back to the top grade overall.
+ */
+
+const axios = require('axios');
+const { buildCard, publicCardUrl } = require('./_shareCardClient');
+
+const API_BASE = process.env.API_BASE_URL || 'http://localhost:4000';
+const GRADE_RANK = { 'A+': 0, 'A': 1, 'A-': 2, 'B+': 3, 'B': 4, 'B-': 5, 'C+': 6, 'C': 7, 'C-': 8, 'D': 9, 'F': 10 };
+
+async function fetchTop(limit = 8) {
+  const res = await axios.get(`${API_BASE}/api/props/top-graded?limit=${limit}`, { timeout: 10_000 }).catch(() => null);
+  return Array.isArray(res?.data?.props) ? res.data.props : [];
+}
+
+function pickGOTD(props) {
+  if (!props.length) return null;
+  const sorted = [...props].sort((a, b) => {
+    const ra = GRADE_RANK[a.grade] ?? 99;
+    const rb = GRADE_RANK[b.grade] ?? 99;
+    if (ra !== rb) return ra - rb;
+    return (b.confidence ?? 0) - (a.confidence ?? 0);
+  });
+  return sorted[0];
+}
+
+async function generate({ format = 'square' } = {}) {
+  const props = await fetchTop(8);
+  const winner = pickGOTD(props);
+  if (!winner) {
+    return { data: null, imageBuffer: null, imageUrl: null, note: 'no grades available' };
+  }
+
+  const payload = {
+    player: winner.player_name || winner.player,
+    sport: winner.sport,
+    stat: winner.stat_type || winner.stat,
+    line: winner.line,
+    direction: winner.direction,
+    grade: winner.grade,
+    projection: winner.projection,
+    summary: winner.one_line_reason || winner.reasoning?.summary || null,
+  };
+
+  let card = null;
+  try {
+    card = await buildCard({ type: 'gotd', format, payload });
+  } catch (err) {
+    console.error('[gradeOfTheDay] card build failed:', err.message);
+  }
+
+  return {
+    data: payload,
+    imageBuffer: card?.buffer || null,
+    imageContentType: card?.contentType || null,
+    imageUrl: publicCardUrl({ type: 'gotd', format, payload }),
+  };
+}
+
+module.exports = { generate, pickGOTD };